/*!
 * Webogram v0.7 - messaging web application for MTProto
 * https://github.com/zhukov/webogram
 * Copyright (C) 2014 Igor Zhukov <igor.beatle@gmail.com>
 * https://github.com/zhukov/webogram/blob/master/LICENSE
 */

'use strict'
/* global Config, location, templateUrl, onContentLoaded, tsNow, cancelEvent, safeReplaceObject, dT, SearchIndexManager, setZeroTimeout, versionCompare, calcImageInBox, getSelectedText, SVGElement, hasOnclick  */

/* Controllers */

angular.module('myApp.controllers', ['myApp.i18n'])

  .controller('AppWelcomeController', function ($scope, $location, MtpApiManager, ChangelogNotifyService, LayoutSwitchService) {
    MtpApiManager.getUserID().then(function (id) {
      if (id) {
        $location.url('/im')
        return
      }
      if (location.protocol == 'http:' &&
        !Config.Modes.http &&
        Config.App.domains.indexOf(location.hostname) != -1) {
        location.href = location.href.replace(/^http:/, 'https:')
        return
      }
      $location.url('/login')
    })

    ChangelogNotifyService.checkUpdate()
    LayoutSwitchService.start()
  })

  .controller('AppLoginController', function ($scope, $rootScope, $location, $timeout, $modal, $modalStack, MtpApiManager, ErrorService, NotificationsManager, PasswordManager, ChangelogNotifyService, IdleManager, LayoutSwitchService, WebPushApiManager, TelegramMeWebService, _) {
    $modalStack.dismissAll()
    IdleManager.start()

    MtpApiManager.getUserID().then(function (id) {
      if (id) {
        $location.url('/im')
        return
      }
      if (location.protocol == 'http:' &&
        !Config.Modes.http &&
        Config.App.domains.indexOf(location.hostname) != -1) {
        location.href = location.href.replace(/^http:/, 'https:')
        return
      }
      TelegramMeWebService.setAuthorized(false)
      WebPushApiManager.forceUnsubscribe()
    })

    var options = {dcID: 2, createNetworker: true}
    var countryChanged = false
    var selectedCountry = false

    $scope.credentials = {phone_country: '', phone_country_name: '', phone_number: '', phone_full: ''}
    $scope.progress = {}
    $scope.nextPending = {}
    $scope.about = {}

    $scope.chooseCountry = function () {
      var modal = $modal.open({
        templateUrl: templateUrl('country_select_modal'),
        controller: 'CountrySelectModalController',
        windowClass: 'countries_modal_window mobile_modal',
        backdrop: 'single'
      })

      modal.result.then(selectCountry)
    }

    function initPhoneCountry () {
      var langCode = (navigator.language || '').toLowerCase()
      var countryIso2 = Config.LangCountries[langCode]
      var shouldPregenerate = !Config.Navigator.mobile

      if (['en', 'en-us', 'en-uk'].indexOf(langCode) == -1) {
        if (countryIso2 !== undefined) {
          selectPhoneCountryByIso2(countryIso2)
        } else if (langCode.indexOf('-') > 0) {
          selectPhoneCountryByIso2(langCode.split('-')[1].toUpperCase())
        } else {
          selectPhoneCountryByIso2('US')
        }
      } else {
        selectPhoneCountryByIso2('US')
      }

      if (!shouldPregenerate) {
        return
      }
      var wasCountry = $scope.credentials.phone_country
      MtpApiManager.invokeApi('help.getNearestDc', {}, {dcID: 2, createNetworker: true}).then(function (nearestDcResult) {
        if (wasCountry == $scope.credentials.phone_country) {
          selectPhoneCountryByIso2(nearestDcResult.country)
        }
        if (nearestDcResult.nearest_dc != nearestDcResult.this_dc) {
          MtpApiManager.getNetworker(nearestDcResult.nearest_dc, {createNetworker: true})
        }
      })
    }

    function selectPhoneCountryByIso2 (countryIso2) {
      if (countryIso2) {
        var i, country
        for (i = 0; i < Config.CountryCodes.length; i++) {
          country = Config.CountryCodes[i]
          if (country[0] == countryIso2) {
            return selectCountry({name: _(country[1] + '_raw'), code: country[2]})
          }
        }
      }
      return selectCountry({name: _('country_select_modal_country_us_raw'), code: '+1'})
    }

    function selectCountry (country) {
      selectedCountry = country
      if ($scope.credentials.phone_country != country.code) {
        $scope.credentials.phone_country = country.code
      } else {
        updateCountry()
      }
      $scope.$broadcast('country_selected')
      $scope.$broadcast('value_updated')
    }

    function updateCountry () {
      var phoneNumber = (
        ($scope.credentials.phone_country || '') +
        ($scope.credentials.phone_number || '')
          ).replace(/\D+/g, '')
      var i, j, code
      var maxLength = 0
      var maxName = false

      if (phoneNumber.length) {
        if (selectedCountry && !phoneNumber.indexOf(selectedCountry.code.replace(/\D+/g, ''))) {
          maxName = selectedCountry.name
        } else {
          for (i = 0; i < Config.CountryCodes.length; i++) {
            for (j = 2; j < Config.CountryCodes[i].length; j++) {
              code = Config.CountryCodes[i][j].replace(/\D+/g, '')
              if (code.length > maxLength && !phoneNumber.indexOf(code)) {
                maxLength = code.length
                maxName = _(Config.CountryCodes[i][1] + '_raw')
              }
            }
          }
        }
      }

      $scope.credentials.phone_full = phoneNumber
      $scope.credentials.phone_country_name = maxName || _('login_controller_unknown_country_raw')
    }

    $scope.$watch('credentials.phone_country', updateCountry)
    $scope.$watch('credentials.phone_number', updateCountry)
    initPhoneCountry()

    var nextTimeout
    var updatePasswordTimeout = false

    function saveAuth (result) {
      MtpApiManager.setUserAuth(options.dcID, {
        id: result.user.id
      })
      $timeout.cancel(nextTimeout)

      $location.url('/im')
    }

    $scope.sendCode = function () {
      $timeout.cancel(nextTimeout)

      var fullPhone = ($scope.credentials.phone_country || '') + ($scope.credentials.phone_number || '')
      var badPhone = !fullPhone.match(/^[\d\-+\s]+$/)
      if (!badPhone) {
        fullPhone = fullPhone.replace(/\D/g, '')
        if (fullPhone.length < 7) {
          badPhone = true
        }
      }
      if (badPhone) {
        $scope.progress.enabled = false
        $scope.error = {field: 'phone'}
        return
      }

      ErrorService.confirm({
        type: 'LOGIN_PHONE_CORRECT',
        country_code: $scope.credentials.phone_country,
        phone_number: $scope.credentials.phone_number
      }).then(function () {
        $scope.progress.enabled = true

        onContentLoaded(function () {
          $scope.$broadcast('ui_height')
        })

        var authKeyStarted = tsNow()
        MtpApiManager.invokeApi('auth.sendCode', {
          flags: 0,
          phone_number: $scope.credentials.phone_full,
          api_id: Config.App.id,
          api_hash: Config.App.hash,
          lang_code: navigator.language || 'en'
        }, options).then(function (sentCode) {
          $scope.progress.enabled = false

          $scope.error = {}
          $scope.about = {}
          $scope.credentials.phone_code_hash = sentCode.phone_code_hash
          applySentCode(sentCode)
        }, function (error) {
          $scope.progress.enabled = false
          console.log('sendCode error', error)
          switch (error.type) {
            case 'PHONE_NUMBER_INVALID':
              $scope.error = {field: 'phone'}
              error.handled = true
              break

            case 'PHONE_NUMBER_APP_SIGNUP_FORBIDDEN':
              $scope.error = {field: 'phone'}
              break
          }
        })['finally'](function () {
          if ($rootScope.idle.isIDLE || tsNow() - authKeyStarted > 60000) {
            NotificationsManager.notify({
              title: 'Telegram',
              message: 'Your authorization key was successfully generated! Open the app to log in.',
              tag: 'auth_key'
            })
          }
        })
      })
    }

    function applySentCode (sentCode) {
      $scope.credentials.type = sentCode.type
      $scope.nextPending.type = sentCode.next_type || false
      $scope.nextPending.remaining = sentCode.timeout || false
      delete $scope.nextPending.progress

      nextTimeoutCheck()

      onContentLoaded(function () {
        $scope.$broadcast('ui_height')
      })
    }

    $scope.sendNext = function () {
      if (!$scope.nextPending.type ||
        $scope.nextPending.remaining > 0) {
        return
      }
      $scope.nextPending.progress = true
      MtpApiManager.invokeApi('auth.resendCode', {
        phone_number: $scope.credentials.phone_full,
        phone_code_hash: $scope.credentials.phone_code_hash
      }, options).then(applySentCode)
    }

    function nextTimeoutCheck () {
      $timeout.cancel(nextTimeout)
      if (!$scope.nextPending.type ||
        $scope.nextPending.remaining === false) {
        return
      }
      if ((--$scope.nextPending.remaining) > 0) {
        nextTimeout = $timeout(nextTimeoutCheck, 1000)
      }
    }

    $scope.editPhone = function () {
      $timeout.cancel(nextTimeout)

      if ($scope.credentials.phone_full &&
        $scope.credentials.phone_code_hash) {
        MtpApiManager.invokeApi('auth.cancelCode', {
          phone_number: $scope.credentials.phone_full,
          phone_code_hash: $scope.credentials.phone_code_hash
        }, options)
      }

      delete $scope.credentials.phone_code_hash
      delete $scope.credentials.phone_unoccupied
      delete $scope.credentials.phone_code_valid
      delete $scope.nextPending.remaining
    }

    $scope.$watch('credentials.phone_code', function (newVal) {
      if (newVal &&
        newVal.match(/^\d+$/) &&
        $scope.credentials.type &&
        $scope.credentials.type.length &&
        newVal.length == $scope.credentials.type.length) {
        $scope.logIn()
      }
    })

    $scope.logIn = function (forceSignUp) {
      if ($scope.progress.enabled &&
          $scope.progress.forceSignUp == forceSignUp) {
        return
      }
      var method = 'auth.signIn'
      var params = {
        phone_number: $scope.credentials.phone_full,
        phone_code_hash: $scope.credentials.phone_code_hash,
        phone_code: $scope.credentials.phone_code
      }
      if (forceSignUp) {
        method = 'auth.signUp'
        angular.extend(params, {
          first_name: $scope.credentials.first_name || '',
          last_name: $scope.credentials.last_name || ''
        })
      }

      $scope.progress.forceSignUp = forceSignUp
      $scope.progress.enabled = true
      MtpApiManager.invokeApi(method, params, options).then(saveAuth, function (error) {
        $scope.progress.enabled = false
        if (error.code == 400 && error.type == 'PHONE_NUMBER_UNOCCUPIED') {
          error.handled = true
          $scope.credentials.phone_code_valid = true
          $scope.credentials.phone_unoccupied = true
          $scope.about = {}
          return
        } else if (error.code == 400 && error.type == 'PHONE_NUMBER_OCCUPIED') {
          error.handled = true
          return $scope.logIn(false)
        } else if (error.code == 401 && error.type == 'SESSION_PASSWORD_NEEDED') {
          $scope.progress.enabled = true
          updatePasswordState().then(function () {
            $scope.progress.enabled = false
            $scope.credentials.phone_code_valid = true
            $scope.credentials.password_needed = true
            $scope.about = {}
          })
          error.handled = true
          return
        }

        switch (error.type) {
          case 'FIRSTNAME_INVALID':
            $scope.error = {field: 'first_name'}
            error.handled = true
            break
          case 'LASTNAME_INVALID':
            $scope.error = {field: 'last_name'}
            error.handled = true
            break
          case 'PHONE_CODE_INVALID':
            $scope.error = {field: 'phone_code'}
            delete $scope.credentials.phone_code_valid
            error.handled = true
            break
          case 'PHONE_CODE_EXPIRED':
            $scope.editPhone()
            error.handled = true
            break
        }
      })
    }

    $scope.checkPassword = function () {
      $scope.progress.enabled = true
      return PasswordManager.check($scope.password, $scope.credentials.password, options).then(saveAuth, function (error) {
        $scope.progress.enabled = false
        switch (error.type) {
          case 'PASSWORD_HASH_INVALID':
            $scope.error = {field: 'password'}
            error.handled = true
            break
        }
      })
    }

    $scope.forgotPassword = function (event) {
      PasswordManager.requestRecovery($scope.password, options).then(function (emailRecovery) {
        var scope = $rootScope.$new()
        scope.recovery = emailRecovery
        scope.options = options
        var modal = $modal.open({
          scope: scope,
          templateUrl: templateUrl('password_recovery_modal'),
          controller: 'PasswordRecoveryModalController',
          windowClass: 'md_simple_modal_window mobile_modal'
        })

        modal.result.then(function (result) {
          if (result && result.user) {
            saveAuth(result)
          } else {
            $scope.canReset = true
          }
        })
      }, function (error) {
        switch (error.type) {
          case 'PASSWORD_EMPTY':
            $scope.logIn()
            error.handled = true
            break
          case 'PASSWORD_RECOVERY_NA':
            $timeout(function () {
              $scope.canReset = true
            }, 1000)
            error.handled = true
            break
        }
      })

      return cancelEvent(event)
    }

    $scope.resetAccount = function () {
      ErrorService.confirm({
        type: 'RESET_ACCOUNT'
      }).then(function () {
        $scope.progress.enabled = true
        MtpApiManager.invokeApi('account.deleteAccount', {
          reason: 'Forgot password'
        }, options).then(function () {
          delete $scope.progress.enabled
          delete $scope.credentials.password_needed
          $scope.credentials.phone_unoccupied = true
        }, function (error) {
          if (error.type &&
                   error.type.substr(0, 17) == '2FA_CONFIRM_WAIT_') {
            error.waitTime = error.type.substr(17)
            error.type = '2FA_CONFIRM_WAIT_TIME'
          }

          delete $scope.progress.enabled
        })
      })
    }

    function updatePasswordState () {
      // $timeout.cancel(updatePasswordTimeout)
      // updatePasswordTimeout = false
      return PasswordManager.getState(options).then(function (result) {
        return $scope.password = result
      // if (result._ == 'account.noPassword' && result.email_unconfirmed_pattern) {
      //   updatePasswordTimeout = $timeout(updatePasswordState, 5000)
      // }
      })
    }

    ChangelogNotifyService.checkUpdate()
    LayoutSwitchService.start()
  })

  .controller('AppIMController', function ($q, qSync, $scope, $location, $routeParams, $modal, $rootScope, $modalStack, MtpApiManager, AppUsersManager, AppChatsManager, AppMessagesManager, AppPeersManager, ContactsSelectService, ChangelogNotifyService, ErrorService, AppRuntimeManager, HttpsMigrateService, LayoutSwitchService, LocationParamsService, AppStickersManager) {
    $scope.$on('$routeUpdate', updateCurDialog)

    var pendingParams = false
    var pendingAttachment = false
    $scope.$on('history_focus', function (e, peerData) {
      if (peerData.peerString == $scope.curDialog.peer &&
          (peerData.messageID ? peerData.messageID == $scope.curDialog.messageID : !$scope.curDialog.messageID) &&
          !peerData.startParam &&
          !peerData.attachment) {
        if (peerData.messageID) {
          $scope.$broadcast('ui_history_change_scroll', true)
        } else {
          $scope.$broadcast('ui_history_focus')
        }
        $modalStack.dismissAll()
      } else {
        var peerID = AppPeersManager.getPeerID(peerData.peerString)
        var username = AppPeersManager.getPeer(peerID).username
        var peer = username ? '@' + username : peerData.peerString
        if (peerData.messageID || peerData.startParam) {
          pendingParams = {
            messageID: peerData.messageID,
            startParam: peerData.startParam
          }
        } else {
          pendingParams = false
        }
        if (peerData.attachment) {
          pendingAttachment = peerData.attachment
        }
        if ($routeParams.p != peer) {
          $location.url('/im?p=' + peer)
        } else {
          updateCurDialog()
        }
      }
    })

    $scope.$on('esc_no_more', function () {
      $rootScope.$apply(function () {
        $location.url('/im')
      })
    })

    $scope.isLoggedIn = true
    $scope.isEmpty = {}
    $scope.search = {}
    $scope.historyFilter = {mediaType: false}
    $scope.historyPeer = {}
    $scope.historyState = {
      selectActions: false,
      botActions: false,
      channelActions: false,
      canReply: false,
      canDelete: false,
      canEdit: false,
      actions: function () {
        return $scope.historyState.selectActions ? 'selected' : ($scope.historyState.botActions ? 'bot' : ($scope.historyState.channelActions ? 'channel' : false))
      },
      typing: [],
      missedCount: 0,
      skipped: false
    }

    $scope.openSettings = function () {
      $modal.open({
        templateUrl: templateUrl('settings_modal'),
        controller: 'SettingsModalController',
        windowClass: 'settings_modal_window mobile_modal',
        backdrop: 'single'
      })
    }

    // setTimeout($scope.openSettings, 1000)

    $scope.openFaq = function () {
      var url = 'https://telegram.org/faq'
      switch (Config.I18n.locale) {
        case 'es-es':
          url += '/es'
          break
        case 'it-it':
          url += '/it'
          break
        case 'de-de':
          url += '/de'
          break
        case 'ko-ko':
          url += '/ko'
          break
        case 'pt-br':
          url += '/br'
          break
      }
      var popup = window.open(url, '_blank')
      try {
        popup.opener = null;
      } catch (e) {}
    }

    $scope.openContacts = function () {
      ContactsSelectService.selectContact().then(function (userID) {
        $scope.dialogSelect(AppUsersManager.getUserString(userID))
      })
    }

    $scope.openGroup = function () {
      ContactsSelectService.selectContacts({action: 'new_group'}).then(function (userIDs) {
        if (userIDs.length == 1) {
          $scope.dialogSelect(AppUsersManager.getUserString(userIDs[0]))
        } else if (userIDs.length > 1) {
          var scope = $rootScope.$new()
          scope.userIDs = userIDs

          $modal.open({
            templateUrl: templateUrl('chat_create_modal'),
            controller: 'ChatCreateModalController',
            scope: scope,
            windowClass: 'md_simple_modal_window mobile_modal',
            backdrop: 'single'
          })
        }
      })
    }

    $scope.importContact = function () {
      AppUsersManager.openImportContact().then(function (foundContact) {
        if (foundContact) {
          $rootScope.$broadcast('history_focus', {
            peerString: AppUsersManager.getUserString(foundContact)
          })
        }
      })
    }

    $scope.searchClear = function () {
      $scope.search.query = ''
      $scope.$broadcast('search_clear')
    }

    $scope.dialogSelect = function (peerString, messageID) {
      var params = {peerString: peerString}
      if (messageID) {
        params.messageID = messageID
      } else if ($scope.search.query) {
        $scope.searchClear()
      }
      var peerID = AppPeersManager.getPeerID(peerString)
      var converted = AppMessagesManager.convertMigratedPeer(peerID)
      if (converted) {
        params.peerString = AppPeersManager.getPeerString(converted)
      }
      $rootScope.$broadcast('history_focus', params)
    }

    $scope.logOut = function () {
      ErrorService.confirm({type: 'LOGOUT'}).then(function () {
        MtpApiManager.logOut().then(function () {
          location.hash = '/login'
          AppRuntimeManager.reload()
        })
      })
    }

    $scope.openChangelog = function () {
      ChangelogNotifyService.showChangelog(false)
    }

    $scope.showPeerInfo = function () {
      if ($scope.curDialog.peerID > 0) {
        AppUsersManager.openUser($scope.curDialog.peerID)
      } else if ($scope.curDialog.peerID < 0) {
        AppChatsManager.openChat(-$scope.curDialog.peerID)
      }
    }

    $scope.toggleEdit = function () {
      $scope.$broadcast('history_edit_toggle')
    }
    $scope.selectedFlush = function () {
      $scope.$broadcast('history_edit_flush')
    }
    $scope.toggleMedia = function (mediaType) {
      $scope.$broadcast('history_media_toggle', mediaType)
    }
    $scope.returnToRecent = function () {
      $scope.$broadcast('history_return_recent')
    }
    $scope.toggleSearch = function () {
      $scope.$broadcast('dialogs_search_toggle')
    }

    updateCurDialog()

    function updateCurDialog () {
      $modalStack.dismissAll()
      var addParams = pendingParams || {}
      pendingParams = false
      addParams.messageID = parseInt(addParams.messageID) || false
      addParams.startParam = addParams.startParam

      var peerStringPromise
      if ($routeParams.p && $routeParams.p.charAt(0) == '@') {
        if ($scope.curDialog === undefined) {
          $scope.curDialog = {
            peer: '',
            peerID: 0
          }
        }
        peerStringPromise = AppPeersManager.resolveUsername($routeParams.p.substr(1)).then(function (peerID) {
          return qSync.when(AppPeersManager.getPeerString(peerID))
        })
      } else {
        peerStringPromise = qSync.when($routeParams.p)
      }
      peerStringPromise.then(function (peerString) {
        $scope.curDialog = angular.extend({
          peer: peerString,
          peerID: AppPeersManager.getPeerID(peerString || '')
        }, addParams)
        if (pendingAttachment) {
          $scope.$broadcast('peer_draft_attachment', pendingAttachment)
          pendingAttachment = false
        }
      })
    }

    ChangelogNotifyService.checkUpdate()
    HttpsMigrateService.start()
    LayoutSwitchService.start()
    LocationParamsService.start()
    AppStickersManager.start()
  })

  .controller('AppImDialogsController', function ($scope, $location, $q, $timeout, $routeParams, MtpApiManager, AppUsersManager, AppChatsManager, AppMessagesManager, AppProfileManager, AppPeersManager, PhonebookContactsService, ErrorService, AppRuntimeManager) {
    $scope.dialogs = []
    $scope.myResults = []
    $scope.foundPeers = []
    $scope.foundMessages = []

    if ($scope.search === undefined) {
      $scope.search = {}
    }
    if ($scope.isEmpty === undefined) {
      $scope.isEmpty = {}
    }
    $scope.phonebookAvailable = PhonebookContactsService.isAvailable()

    var searchMessages = false
    var offsetIndex = 0
    var maxID = 0
    var hasMore = false
    var jump = 0
    var contactsJump = 0
    var peersInDialogs = {}
    var typingTimeouts = {}
    var contactsShown

    $scope.$on('dialogs_need_more', function () {
      // console.log('on need more')
      showMoreDialogs()
    })

    $scope.$on('dialog_unread', function (e, dialog) {
      angular.forEach($scope.dialogs, function (curDialog) {
        if (curDialog.peerID == dialog.peerID) {
          curDialog.unreadCount = dialog.count
        }
      })
    })

    $scope.$on('history_search', function (e, peerID) {
      $scope.setSearchPeer(peerID)
    })

    $scope.$on('esc_no_more', function () {
      $scope.setSearchPeer(false)
    })

    $scope.$on('dialogs_multiupdate', function (e, dialogsUpdated) {
      if (searchMessages) {
        return false
      }
      if ($scope.search.query !== undefined &&
          $scope.search.query.length) {
        return false
      }

      var i
      var dialog
      var newPeer = false
      var len = $scope.dialogs.length
      for (i = 0; i < len; i++) {
        dialog = $scope.dialogs[i]
        if (dialogsUpdated[dialog.peerID]) {
          $scope.dialogs.splice(i, 1)
          i--
          len--
          AppMessagesManager.clearDialogCache(dialog.mid)
        }
      }

      angular.forEach(dialogsUpdated, function (dialog, peerID) {
        if ($scope.noUsers && peerID > 0) {
          return
        }
        if (!peersInDialogs[peerID]) {
          peersInDialogs[peerID] = true
          newPeer = true
        }
        $scope.dialogs.unshift(
          AppMessagesManager.wrapForDialog(dialog.top_message, dialog)
        )
      })

      sortDialogs()

      if (newPeer) {
        delete $scope.isEmpty.dialogs
        if (contactsShown) {
          showMoreConversations()
        }
      }
    })

    function deleteDialog (peerID) {
      for (var i = 0; i < $scope.dialogs.length; i++) {
        if ($scope.dialogs[i].peerID == peerID) {
          $scope.dialogs.splice(i, 1)
          break
        }
      }
    }

    function sortDialogs () {
      var myID = false
      if ($scope.forPeerSelect) {
        myID = AppUsersManager.getSelf().id
      }
      $scope.dialogs.sort(function (d1, d2) {
        if (d1.peerID == myID) {
          return -1
        }
        else if (d2.peerID == myID) {
          return 1
        }
        return d2.index - d1.index
      })
    }

    $scope.$on('dialog_top', function (e, dialog) {
      var curDialog, i, wrappedDialog
      var len = $scope.dialogs.length
      for (i = 0; i < len; i++) {
        curDialog = $scope.dialogs[i]
        if (curDialog.peerID == dialog.peerID) {
          wrappedDialog = AppMessagesManager.wrapForDialog(dialog.top_message, dialog)
          $scope.dialogs.splice(i, 1, wrappedDialog)
          break
        }
      }
      sortDialogs()
      if (wrappedDialog == $scope.dialogs[len - 1]) {
        $scope.dialogs.splice(len - 1, 1)
      }
    })
    $scope.$on('dialog_flush', function (e, update) {
      var curDialog, i
      for (i = 0; i < $scope.dialogs.length; i++) {
        curDialog = $scope.dialogs[i]
        if (curDialog.peerID == update.peerID) {
          curDialog.deleted = true
          break
        }
      }
    })
    $scope.$on('dialog_drop', function (e, dialog) {
      deleteDialog(dialog.peerID)
    })

    $scope.$on('dialog_draft', function (e, draftUpdate) {
      var curDialog, i
      for (i = 0; i < $scope.dialogs.length; i++) {
        curDialog = $scope.dialogs[i]
        if (curDialog.peerID == draftUpdate.peerID) {
          curDialog.draft = draftUpdate.draft
          if (draftUpdate.index) {
            curDialog.index = draftUpdate.index
          }
          sortDialogs()
          break
        }
      }
    })

    $scope.$on('history_delete', function (e, historyUpdate) {
      for (var i = 0; i < $scope.dialogs.length; i++) {
        if ($scope.dialogs[i].peerID == historyUpdate.peerID) {
          if (historyUpdate.msgs[$scope.dialogs[i].mid]) {
            $scope.dialogs[i].deleted = true
          }
          break
        }
      }
    })

    $scope.$on('apiUpdate', function (e, update) {
      switch (update._) {
        case 'updateUserTyping':
        case 'updateChatUserTyping':
          if (!AppUsersManager.hasUser(update.user_id)) {
            if (update.chat_id &&
              AppChatsManager.hasChat(update.chat_id) &&
              !AppChatsManager.isChannel(update.chat_id)) {
              AppProfileManager.getChatFull(update.chat_id)
            }
            return
          }
          var peerID = update._ == 'updateUserTyping' ? update.user_id : -update.chat_id
          AppUsersManager.forceUserOnline(update.user_id)
          for (var i = 0; i < $scope.dialogs.length; i++) {
            if ($scope.dialogs[i].peerID == peerID) {
              $scope.dialogs[i].typing = update.user_id
              $timeout.cancel(typingTimeouts[peerID])

              typingTimeouts[peerID] = $timeout(function () {
                for (var i = 0; i < $scope.dialogs.length; i++) {
                  if ($scope.dialogs[i].peerID == peerID) {
                    if ($scope.dialogs[i].typing == update.user_id) {
                      delete $scope.dialogs[i].typing
                    }
                  }
                }
              }, 6000)
              break
            }
          }
          break
      }
    })

    $scope.$watchCollection('search', function () {
      $scope.dialogs = []
      $scope.foundMessages = []
      searchMessages = !!$scope.searchPeer
      contactsJump++
      loadDialogs()
    })

    if (Config.Mobile) {
      $scope.$watch('curDialog.peer', function () {
        $scope.$broadcast('ui_dialogs_update')
      })
    }

    $scope.importPhonebook = function () {
      PhonebookContactsService.openPhonebookImport()
    }

    $scope.setSearchPeer = function (peerID) {
      $scope.searchPeer = peerID || false
      $scope.searchClear()
      if (peerID) {
        $scope.dialogs = []
        $scope.foundPeers = []
        searchMessages = true
        $scope.toggleSearch()
      } else {
        searchMessages = false
      }
      loadDialogs(true)
    }

    $scope.$on('contacts_update', function () {
      if (contactsShown) {
        showMoreConversations()
      }
    })

    $scope.$on('ui_dialogs_search_clear', $scope.searchClear)

    if (!$scope.noMessages) {
      $scope.$on('dialogs_search', function (e, data) {
        $scope.search.query = data.query || ''
        $scope.toggleSearch()
      })
    }

    var searchTimeoutPromise
    function getDialogs (force) {
      var curJump = ++jump

      $timeout.cancel(searchTimeoutPromise)

      if (searchMessages) {
        searchTimeoutPromise = (force || maxID) ? $q.when() : $timeout(angular.noop, 500)
        return searchTimeoutPromise.then(function () {
          var searchPeerID = $scope.searchPeer || false
          return AppMessagesManager.getSearch(searchPeerID, $scope.search.query, {_: 'inputMessagesFilterEmpty'}, maxID).then(function (result) {
            if (curJump != jump) {
              return $q.reject()
            }
            var dialogs = []
            angular.forEach(result.history, function (messageID) {
              var message = AppMessagesManager.getMessage(messageID)
              var peerID = AppMessagesManager.getMessagePeer(message)

              dialogs.push({
                peerID: peerID,
                top_message: messageID,
                unread_count: -1
              })
            })

            return {
              dialogs: dialogs
            }
          })
        })
      }

      var query = $scope.search.query || ''
      if ($scope.noUsers) {
        query = '%pg ' + query
      }
      return AppMessagesManager.getConversations(query, offsetIndex).then(function (result) {
        if (curJump != jump) {
          return $q.reject()
        }
        if (!query && !offsetIndex && $scope.forPeerSelect) {
          var myID = AppUsersManager.getSelf().id
          return AppMessagesManager.getConversation(myID).then(function (dialog) {
            result.dialogs.unshift(dialog)
            return result
          })
        }
        return result
      })
    }

    function loadDialogs (force) {
      offsetIndex = 0
      maxID = 0
      hasMore = false
      if (!searchMessages) {
        peersInDialogs = {}
        contactsShown = false
      }

      getDialogs(force).then(function (dialogsResult) {
        if (!searchMessages) {
          $scope.dialogs = []
          $scope.myResults = []
          $scope.foundPeers = []
        }
        $scope.foundMessages = []

        var dialogsList = searchMessages ? $scope.foundMessages : $scope.dialogs

        if (dialogsResult.dialogs.length) {
          angular.forEach(dialogsResult.dialogs, function (dialog) {
            if ($scope.canSend &&
                AppPeersManager.isChannel(dialog.peerID) &&
                !AppChatsManager.hasRights(-dialog.peerID, 'send')) {
              return
            }
            var wrapDialog = searchMessages ? undefined : dialog
            var wrappedDialog = AppMessagesManager.wrapForDialog(dialog.top_message, wrapDialog)

            if (searchMessages &&
                $scope.searchPeer) {
              var message = AppMessagesManager.getMessage(dialog.top_message)
              if (message.fromID > 0) {
                wrappedDialog.peerID = message.fromID
              }
            }

            if (searchMessages) {
              wrappedDialog.unreadCount = -1
            } else {
              if (peersInDialogs[dialog.peerID]) {
                return
              } else {
                peersInDialogs[dialog.peerID] = true
              }
            }
            dialogsList.push(wrappedDialog)
          })

          if (searchMessages) {
            maxID = dialogsResult.dialogs[dialogsResult.dialogs.length - 1].top_message
          } else {
            offsetIndex = dialogsResult.dialogs[dialogsResult.dialogs.length - 1].index
            delete $scope.isEmpty.dialogs
          }
          hasMore = true
        } else {
          hasMore = false
        }

        $scope.$broadcast('ui_dialogs_change')

        if (!$scope.search.query) {
          AppMessagesManager.getConversations('', offsetIndex, 100)
          if (!dialogsResult.dialogs.length) {
            $scope.isEmpty.dialogs = true
            showMoreDialogs()
          }
        } else {
          showMoreDialogs()
        }
      })
    }

    function showMoreDialogs () {
      if (contactsShown && (!hasMore || (!offsetIndex && !maxID))) {
        return
      }

      if (!hasMore &&
        !searchMessages &&
        !$scope.noUsers &&
        ($scope.search.query || !$scope.dialogs.length)) {
        showMoreConversations()
        return
      }

      getDialogs().then(function (dialogsResult) {
        if (dialogsResult.dialogs.length) {
          var dialogsList = searchMessages ? $scope.foundMessages : $scope.dialogs

          angular.forEach(dialogsResult.dialogs, function (dialog) {
            if ($scope.canSend &&
                AppPeersManager.isChannel(dialog.peerID) &&
                !AppChatsManager.hasRights(-dialog.peerID, 'send')) {
              return
            }
            var wrapDialog = searchMessages ? undefined : dialog
            var wrappedDialog = AppMessagesManager.wrapForDialog(dialog.top_message, wrapDialog)

            if (searchMessages) {
              wrappedDialog.unreadCount = -1
            } else {
              if (peersInDialogs[dialog.peerID]) {
                return
              } else {
                peersInDialogs[dialog.peerID] = true
              }
            }

            if (searchMessages &&
                $scope.searchPeer) {
              var message = AppMessagesManager.getMessage(dialog.top_message)
              if (message.fromID > 0) {
                wrappedDialog.peerID = message.fromID
              }
            }

            dialogsList.push(wrappedDialog)
          })

          if (searchMessages) {
            maxID = dialogsResult.dialogs[dialogsResult.dialogs.length - 1].top_message
          } else {
            offsetIndex = dialogsResult.dialogs[dialogsResult.dialogs.length - 1].index
          }

          $scope.$broadcast('ui_dialogs_append')

          hasMore = true
        } else {
          hasMore = false
        }
      })
    }

    function showMoreConversations () {
      contactsShown = true

      var curJump = ++contactsJump
      AppUsersManager.getContacts($scope.search.query).then(function (contactsList) {
        if (curJump != contactsJump) return
        $scope.myResults = []
        angular.forEach(contactsList, function (userID) {
          if (peersInDialogs[userID] === undefined) {
            $scope.myResults.push({
              id: userID,
              peerString: AppUsersManager.getUserString(userID)
            })
          }
        })

        if (contactsList.length) {
          delete $scope.isEmpty.contacts
        } else if (!$scope.search.query) {
          $scope.isEmpty.contacts = true
        }
        $scope.$broadcast('ui_dialogs_append')
      })

      if ($scope.search.query && $scope.search.query.length >= 2) {
        $timeout(function () {
          if (curJump != contactsJump) return
          MtpApiManager.invokeApi('contacts.search', {q: $scope.search.query, limit: 10}).then(function (result) {
            AppUsersManager.saveApiUsers(result.users)
            AppChatsManager.saveApiChats(result.chats)
            if (curJump != contactsJump) return
            var alreadyPeers = []
            angular.forEach($scope.myResults, function (peerFound) {
              alreadyPeers.push(peerFound.id)
            })
            angular.forEach(result.my_results, function (peerFound) {
              var peerID = AppPeersManager.getPeerID(peerFound)
              if (peersInDialogs[peerID] === undefined &&
                  alreadyPeers.indexOf(peerID) == -1) {
                alreadyPeers.push(peerID)
                if ($scope.canSend &&
                  AppPeersManager.isChannel(peerID) &&
                  !AppChatsManager.hasRights(-peerID, 'send')) {
                  return
                }
                $scope.myResults.push({
                  id: peerID,
                  peerString: AppPeersManager.getPeerString(peerID)
                })
              }
            })

            $scope.foundPeers = []
            angular.forEach(result.results, function (peerFound) {
              var peerID = AppPeersManager.getPeerID(peerFound)
              if (peersInDialogs[peerID] === undefined &&
                  alreadyPeers.indexOf(peerID) == -1) {
                if ($scope.canSend &&
                  AppPeersManager.isChannel(peerID) &&
                  !AppChatsManager.hasRights(-peerID, 'send')) {
                  return
                }
                alreadyPeers.push(peerID)
                $scope.foundPeers.push({
                  id: peerID,
                  username: AppPeersManager.getPeer(peerID).username,
                  peerString: AppUsersManager.getUserString(peerID)
                })
              }
            })
          }, function (error) {
            if (error.code == 400) {
              error.handled = true
            }
          })
        }, 500)
      }

      if ($scope.search.query && !$scope.noMessages) {
        searchMessages = true
        loadDialogs()
      }
    }
  })

  .controller('AppImHistoryController', function ($scope, $location, $timeout, $modal, $rootScope, toaster, _, MtpApiManager, AppUsersManager, AppChatsManager, AppMessagesManager, AppPeersManager, ApiUpdatesManager, PeersSelectService, IdleManager, StatusManager, NotificationsManager, ErrorService, GeoLocationManager) {
    $scope.$watchCollection('curDialog', applyDialogSelect)

    ApiUpdatesManager.attach()
    IdleManager.start()
    StatusManager.start()

    $scope.peerHistories = []
    $scope.selectedMsgs = {}
    $scope.selectedCount = 0
    $scope.historyState.selectActions = false
    $scope.historyState.botActions = false
    $scope.historyState.channelActions = false
    $scope.historyState.canDelete = false
    $scope.historyState.canReply = false
    $scope.historyState.missedCount = 0
    $scope.historyState.skipped = false
    $scope.state = {}

    $scope.toggleMessage = toggleMessage
    $scope.selectedDelete = selectedDelete
    $scope.selectedForward = selectedForward
    $scope.selectedReply = selectedReply
    $scope.selectedEdit = selectedEdit
    $scope.selectedCancel = selectedCancel
    $scope.selectedFlush = selectedFlush
    $scope.selectInlineBot = selectInlineBot

    $scope.startBot = startBot
    $scope.cancelBot = cancelBot
    $scope.joinChannel = joinChannel
    $scope.togglePeerMuted = togglePeerMuted

    $scope.toggleEdit = toggleEdit
    $scope.toggleMedia = toggleMedia
    $scope.returnToRecent = returnToRecent

    $scope.$on('history_edit_toggle', toggleEdit)
    $scope.$on('history_edit_flush', selectedFlush)
    $scope.$on('history_media_toggle', function (e, mediaType) {
      toggleMedia(mediaType)
    })

    $scope.$on('history_return_recent', returnToRecent)

    var peerID
    var peerHistory = false
    var unreadAfterIdle = false
    var hasMore = false
    var hasLess = false
    var maxID = 0
    var minID = 0
    var lastSelectID = false
    var inputMediaFilters = {
      photos: 'inputMessagesFilterPhotos',
      video: 'inputMessagesFilterVideo',
      documents: 'inputMessagesFilterDocument',
      audio: 'inputMessagesFilterVoice',
      round: 'inputMessagesFilterRoundVideo',
      music: 'inputMessagesFilterMusic',
      urls: 'inputMessagesFilterUrl',
      mentions: 'inputMessagesFilterMyMentions'
    }
    var jump = 0
    var moreJump = 0
    var moreActive = false
    var morePending = false
    var lessJump = 0
    var lessActive = false
    var lessPending = false

    function applyDialogSelect (newDialog, oldDialog) {
      peerID = $rootScope.selectedPeerID = newDialog.peerID
      $scope.historyFilter.mediaType = false

      AppPeersManager.getInputPeer(newDialog.peer || $scope.curDialog.peer || '')

      updateBotActions()
      selectedCancel(true)

      if (oldDialog.peer &&
        oldDialog.peer == newDialog.peer &&
        newDialog.messageID) {
        messageFocusHistory()
      } else if (peerID) {
        updateHistoryPeer(true)
        loadHistory()
      } else {
        showEmptyHistory()
      }
    }

    function historiesQueuePush (peerID) {
      var pos = -1
      var maxLen = 10
      var i, history, diff

      for (i = 0; i < $scope.peerHistories.length; i++) {
        if ($scope.peerHistories[i].peerID == peerID) {
          pos = i
          break
        }
      }
      if (pos > -1) {
        history = $scope.peerHistories[pos]
        return history
      }
      history = {peerID: peerID, messages: [], ids: []}
      $scope.peerHistories.unshift(history)
      diff = $scope.peerHistories.length - maxLen
      if (diff > 0) {
        $scope.peerHistories.splice(maxLen - 1, diff)
      }

      return history
    }

    function historiesQueueFind (peerID) {
      var i
      for (i = 0; i < $scope.peerHistories.length; i++) {
        if ($scope.peerHistories[i].peerID == peerID) {
          return $scope.peerHistories[i]
        }
      }
      return false
    }

    function historiesQueuePop (peerID) {
      var i
      for (i = 0; i < $scope.peerHistories.length; i++) {
        if ($scope.peerHistories[i].peerID == peerID) {
          $scope.peerHistories.splice(i, 1)
          return true
        }
      }
      return false
    }

    function updateHistoryPeer (preload) {
      var peerData = AppPeersManager.getPeer(peerID)
      // console.log('update', preload, peerData)
      if (!peerData || peerData.deleted) {
        safeReplaceObject($scope.state, {loaded: false})
        return false
      }

      peerHistory = historiesQueuePush(peerID)

      safeReplaceObject($scope.historyPeer, {
        id: peerID,
        data: peerData
      })

      MtpApiManager.getUserID().then(function (myID) {
        $scope.ownID = myID
      })

      if (preload) {
        $scope.historyState.typing.splice(0, $scope.historyState.typing.length)
        $scope.$broadcast('ui_peer_change')
        $scope.$broadcast('ui_history_change')
        safeReplaceObject($scope.state, {loaded: true, empty: !peerHistory.messages.length, mayBeHasMore: true})

        updateBotActions()
        updateChannelActions()
      }
    }

    function updateBotActions () {
      var wasBotActions = $scope.historyState.botActions
      if (!peerID ||
        peerID < 0 ||
        !AppUsersManager.isBot(peerID) ||
        $scope.historyFilter.mediaType ||
        $scope.curDialog.messageID) {
        $scope.historyState.botActions = false
      } else if (
        $scope.state.empty || (
        peerHistory &&
        peerHistory.messages.length == 1 &&
        peerHistory.messages[0].action &&
        peerHistory.messages[0].action._ == 'messageActionBotIntro'
        )
      ) {
        $scope.historyState.botActions = 'start'
      } else if ($scope.curDialog.startParam) {
        $scope.historyState.botActions = 'param'
      } else {
        $scope.historyState.botActions = false
      }
      if (wasBotActions != $scope.historyState.botActions) {
        $scope.$broadcast('ui_panel_update')
      }
    }

    function updateChannelActions () {
      var wasChannelActions = $scope.historyState.channelActions
      var channel
      if (peerID &&
        AppPeersManager.isChannel(peerID) &&
        (channel = AppChatsManager.getChat(-peerID))) {
        var canSend = AppChatsManager.hasRights(-peerID, 'send')
        if (!canSend) {
          if (channel.pFlags.left) {
            $scope.historyState.channelActions = 'join'
          } else {
            if (!$scope.historyState.channelActions) {
              $scope.historyState.channelActions = 'mute'
            }
            NotificationsManager.getPeerMuted(peerID).then(function (muted) {
              $scope.historyState.channelActions = muted ? 'unmute' : 'mute'
            })
          }
        } else {
          $scope.historyState.channelActions = false
        }
        $scope.historyState.canReply = canSend
        $scope.historyState.canDelete = canSend || channel.pFlags.moderator
      } else {
        $scope.historyState.channelActions = false
        $scope.historyState.canReply = true
        $scope.historyState.canDelete = true
      }
      if (wasChannelActions != $scope.historyState.channelActions) {
        $scope.$broadcast('ui_panel_update')
      }
    }

    function messageFocusHistory () {
      var history = historiesQueueFind(peerID)

      if (history &&
        history.ids.indexOf($scope.curDialog.messageID) != -1) {
        $scope.historyUnread = {}
        var focusedMsgID = $scope.curDialog.messageID || 0
        $scope.$broadcast('messages_focus', focusedMsgID)
        $scope.$broadcast('ui_history_change_scroll', true)
      } else {
        loadHistory()
      }
    }

    function showLessHistory () {
      if (!hasLess) {
        return
      }
      if (moreActive) {
        lessPending = true
        return
      }
      lessPending = false
      $scope.state.lessActive = lessActive = true

      var curJump = jump
      var curLessJump = ++lessJump
      var limit = 0
      var backLimit = 20
      AppMessagesManager.getHistory($scope.curDialog.peerID, minID, limit, backLimit).then(function (historyResult) {
        $scope.state.lessActive = lessActive = false
        if (curJump != jump || curLessJump != lessJump) return

        var i, id
        for (i = historyResult.history.length - 1; i >= 0; i--) {
          id = historyResult.history[i]
          if (id > minID) {
            peerHistory.messages.push(AppMessagesManager.wrapForHistory(id))
            peerHistory.ids.push(id)
          }
        }

        if (historyResult.history.length) {
          minID = historyResult.history.length >= backLimit
            ? historyResult.history[0]
            : 0
          if (AppMessagesManager.regroupWrappedHistory(peerHistory.messages, -backLimit)) {
            $scope.$broadcast('messages_regroup')
          }
          delete $scope.state.empty
          $scope.$broadcast('ui_history_append')
        } else {
          minID = 0
        }
        $scope.historyState.skipped = hasLess = minID > 0

        if (morePending) {
          showMoreHistory()
        }
      })
    }

    function showMoreHistory () {
      if (!hasMore) {
        return
      }
      if (lessActive) {
        morePending = true
        return
      }
      morePending = false
      $scope.state.moreActive = moreActive = true

      var curJump = jump
      var curMoreJump = ++moreJump
      var inputMediaFilter = $scope.historyFilter.mediaType && {_: inputMediaFilters[$scope.historyFilter.mediaType]}
      var limit = Config.Mobile ? 20 : 0
      var getMessagesPromise = inputMediaFilter
        ? AppMessagesManager.getSearch($scope.curDialog.peerID, '', inputMediaFilter, maxID, limit)
        : AppMessagesManager.getHistory($scope.curDialog.peerID, maxID, limit)

      getMessagesPromise.then(function (historyResult) {
        $scope.state.moreActive = moreActive = false
        if (curJump != jump || curMoreJump != moreJump) return

        angular.forEach(historyResult.history, function (id) {
          peerHistory.messages.unshift(AppMessagesManager.wrapForHistory(id))
          peerHistory.ids.unshift(id)
        })

        hasMore = historyResult.count === null ||
          (historyResult.history.length && peerHistory.messages.length < historyResult.count)

        if (historyResult.history.length) {
          delete $scope.state.empty
          maxID = historyResult.history[historyResult.history.length - 1]
          $scope.$broadcast('ui_history_prepend')
          if (AppMessagesManager.regroupWrappedHistory(peerHistory.messages, historyResult.history.length + 1)) {
            $scope.$broadcast('messages_regroup')
          }
        }

        if (lessPending) {
          showLessHistory()
        }
      })
    }

    function loadHistory (forceRecent) {
      $scope.historyState.missedCount = 0

      hasMore = false
      $scope.historyState.skipped = hasLess = false
      maxID = 0
      minID = 0
      peerHistory = historiesQueuePush(peerID)

      var limit = 0
      var backLimit = 0

      if ($scope.curDialog.messageID) {
        maxID = parseInt($scope.curDialog.messageID)
        limit = 20
        backLimit = 20
      } else if (forceRecent) {
        limit = 10
      }

      $scope.state.moreActive = moreActive = false
      morePending = false
      $scope.state.lessActive = lessActive = false
      lessPending = false

      var prerenderedLen = peerHistory.messages.length
      if (prerenderedLen && (maxID || backLimit)) {
        prerenderedLen = 0
        peerHistory.messages = []
        peerHistory.ids = []
        $scope.state.empty = true
      }

      var curJump = ++jump
      var inputMediaFilter = $scope.historyFilter.mediaType && {_: inputMediaFilters[$scope.historyFilter.mediaType]}
      var getMessagesPromise = inputMediaFilter
        ? AppMessagesManager.getSearch($scope.curDialog.peerID, '', inputMediaFilter, maxID)
        : AppMessagesManager.getHistory($scope.curDialog.peerID, maxID, limit, backLimit, prerenderedLen)

      $scope.state.mayBeHasMore = true
      // console.log(dT(), 'start load history', $scope.curDialog)
      getMessagesPromise.then(function (historyResult) {
        if (curJump != jump) return
        // console.log(dT(), 'history loaded', angular.copy(historyResult))

        var fetchedLength = historyResult.history.length

        minID = (historyResult.unreadSkip || (maxID && historyResult.history.indexOf(maxID) >= backLimit - 1))
          ? historyResult.history[0]
          : 0
        maxID = historyResult.history[historyResult.history.length - 1]

        $scope.historyState.skipped = hasLess = minID > 0
        hasMore = historyResult.count === null ||
          (fetchedLength && fetchedLength < historyResult.count)

        updateHistoryPeer()
        safeReplaceObject($scope.state, {loaded: true, empty: !fetchedLength})

        peerHistory.messages = []
        peerHistory.ids = []
        angular.forEach(historyResult.history, function (id) {
          var message = AppMessagesManager.wrapForHistory(id)
          if ($scope.historyState.skipped) {
            delete message.pFlags.unread
          }
          if (historyResult.unreadOffset) {
            message.unreadAfter = true
          }
          peerHistory.messages.push(message)
          peerHistory.ids.push(id)
        })
        peerHistory.messages.reverse()
        peerHistory.ids.reverse()

        if (AppMessagesManager.regroupWrappedHistory(peerHistory.messages)) {
          $scope.$broadcast('messages_regroup')
        }

        if (historyResult.unreadOffset) {
          $scope.historyUnreadAfter = historyResult.history[historyResult.unreadOffset - 1]
        } else if ($scope.historyUnreadAfter) {
          delete $scope.historyUnreadAfter
        }
        $scope.$broadcast('messages_unread_after')
        var focusedMsgID = $scope.curDialog.messageID || 0
        onContentLoaded(function () {
          $scope.$broadcast('messages_focus', focusedMsgID)
        })
        $scope.$broadcast('ui_history_change')

        if (!$rootScope.idle.isIDLE) {
          AppMessagesManager.readHistory($scope.curDialog.peerID)
        }

        updateBotActions()
        updateChannelActions()
      }, function () {
        safeReplaceObject($scope.state, {error: true, loaded: true})
      })
    }

    function showEmptyHistory () {
      jump++
      safeReplaceObject($scope.historyPeer, {})
      safeReplaceObject($scope.state, {notSelected: true})
      peerHistory = false
      hasMore = false

      $scope.$broadcast('ui_history_change')
    }

    function startBot () {
      AppMessagesManager.startBot(peerID, 0, $scope.curDialog.startParam)
      $scope.curDialog.startParam = false
    }

    function cancelBot () {
      delete $scope.curDialog.startParam
    }

    function joinChannel () {
      MtpApiManager.invokeApi('channels.joinChannel', {
        channel: AppChatsManager.getChannelInput(-peerID)
      }).then(function (result) {
        ApiUpdatesManager.processUpdateMessage(result)
      })
    }

    function togglePeerMuted (muted) {
      NotificationsManager.getPeerSettings(peerID).then(function (settings) {
        settings.mute_until = !muted ? 0 : 2000000000
        NotificationsManager.updatePeerSettings(peerID, settings)
      })
    }

    function toggleMessage (messageID, $event) {
      if ($scope.historyState.botActions ||
        $rootScope.idle.afterFocus) {
        return false
      }
      var message = AppMessagesManager.getMessage(messageID)
      if (message._ == 'messageService') {
        return false
      }

      if (!$scope.historyState.selectActions) {
        if (getSelectedText()) {
          return false
        }

        var target = $event.target
        while (target) {
          if (target instanceof SVGElement) {
            target = target.parentNode
            continue
          }
          if (target.className && target.className.indexOf('im_message_outer_wrap') != -1) {
            if (Config.Mobile) {
              return false
            }
            break
          }
          if (target.className &&
            target.className.indexOf('im_message_date') != -1) {
            if ($scope.historyFilter.mediaType) {
              $rootScope.$broadcast('history_focus', {
                peerString: $scope.curDialog.peer,
                messageID: messageID
              })
              return
            }
            if (AppPeersManager.isBroadcast(peerID)) {
              quickForward(messageID)
            } else {
              selectedReply(messageID)
            }
            return false
          }
          if (Config.Mobile &&
            target.className &&
            target.className.indexOf('im_message_body') != -1) {
            break
          }
          if (target.tagName == 'A' || hasOnclick(target)) {
            return false
          }
          target = target.parentNode
        }

        if (Config.Mobile) {
          $scope.historyState.canEdit = AppMessagesManager.canEditMessage(messageID)

          $modal.open({
            templateUrl: templateUrl('message_actions_modal'),
            windowClass: 'message_actions_modal_window',
            scope: $scope.$new()
          }).result.then(function (action) {
            switch (action) {
              case 'reply':
                selectedReply(messageID)
                break

              case 'edit':
                selectedEdit(messageID)
                break

              case 'delete':
                selectedDelete(messageID)
                break

              case 'forward':
                selectedForward(messageID)
                break

              case 'select':
                $scope.historyState.selectActions = 'selected'
                $scope.$broadcast('ui_panel_update')
                toggleMessage(messageID)
                break
            }
          })
          return false
        }
      }

      var shiftClick = $event && $event.shiftKey
      if (shiftClick) {
        $scope.$broadcast('ui_selection_clear')
      }

      if ($scope.selectedMsgs[messageID]) {
        lastSelectID = false
        delete $scope.selectedMsgs[messageID]
        $scope.selectedCount--
        if (!$scope.selectedCount) {
          $scope.historyState.selectActions = false
          $scope.$broadcast('ui_panel_update')
        }
      } else {
        if (!shiftClick) {
          lastSelectID = messageID
        } else if (lastSelectID != messageID) {
          var dir = lastSelectID > messageID
          var i, startPos, curMessageID

          for (i = 0; i < peerHistory.messages.length; i++) {
            if (peerHistory.messages[i].mid == lastSelectID) {
              startPos = i
              break
            }
          }

          i = startPos
          while (peerHistory.messages[i] &&
            (curMessageID = peerHistory.messages[i].mid) != messageID) {
            if (!$scope.selectedMsgs[curMessageID]) {
              $scope.selectedMsgs[curMessageID] = true
              $scope.selectedCount++
            }
            i += dir ? -1 : +1
          }
        }

        $scope.selectedMsgs[messageID] = true
        $scope.selectedCount++
        if (!$scope.historyState.selectActions) {
          $scope.historyState.selectActions = 'selected'
          $scope.$broadcast('ui_panel_update')
        }
      }
      if ($scope.selectedCount == 1) {
        angular.forEach($scope.selectedMsgs, function (t, messageID) {
          $scope.historyState.canEdit = AppMessagesManager.canEditMessage(messageID)
        })
      }
      $scope.$broadcast('messages_select')
    }

    function selectInlineBot (botID, $event) {
      if ($scope.historyState.canReply) {
        $scope.$broadcast('inline_bot_select', botID)
      }
      return cancelEvent($event)
    }

    function selectedCancel (noBroadcast) {
      $scope.selectedMsgs = {}
      $scope.selectedCount = 0
      $scope.historyState.selectActions = false
      lastSelectID = false
      if (!noBroadcast) {
        $scope.$broadcast('ui_panel_update')
      }
      $scope.$broadcast('messages_select')
    }

    function selectedFlush () {
      ErrorService.confirm({type: 'HISTORY_FLUSH'}).then(function () {
        AppMessagesManager.flushHistory($scope.curDialog.peerID, true).then(function () {
          selectedCancel()
        })
      })
    }

    function selectedDelete (selectedMessageID) {
      var selectedMessageIDs = []
      if (selectedMessageID) {
        selectedMessageIDs.push(selectedMessageID)
      } else if ($scope.selectedCount > 0) {
        angular.forEach($scope.selectedMsgs, function (t, messageID) {
          selectedMessageIDs.push(messageID)
        })
      }
      if (selectedMessageIDs.length) {
        var peerID = $scope.curDialog.peerID
        var isUser = peerID > 0
        var isChannel = AppPeersManager.isChannel(peerID)
        var isBroadcast = AppPeersManager.isBroadcast(peerID)
        var isMegagroup = AppPeersManager.isMegagroup(peerID)
        var isUsualGroup = !isChannel && !isUser

        var revocable = !isChannel
        for (var i = 0; revocable && i < selectedMessageIDs.length; i++) {
          var messageID = selectedMessageIDs[i]
          if (!AppMessagesManager.canRevokeMessage(messageID)) {
            revocable = false
          }
        }

        ErrorService.confirm({
          type: 'MESSAGES_DELETE',
          count: selectedMessageIDs.length,
          revocable: revocable,
          isUser: isUser,
          peerID: peerID,
          isChannel: isBroadcast,
          isSupergroup: isMegagroup,
          isUsualGroup: isUsualGroup
        }, {}, { revoke: false }).then(function (data) {
          AppMessagesManager.deleteMessages(selectedMessageIDs, data.revoke).then(function () {
            selectedCancel()
          })
        })
      }
    }

    function quickForward (msgID) {
      PeersSelectService.selectPeers({
        canSend: true,
        confirm_type: 'FORWARD_PEER',
        shareLinkPromise: AppMessagesManager.getMessageShareLink(msgID)
      }).then(function (peerStrings) {
        angular.forEach(peerStrings, function (peerString) {
          var peerID = AppPeersManager.getPeerID(peerString)
          AppMessagesManager.forwardMessages(peerID, [msgID])
        })
        var toastData = toaster.pop({
          type: 'info',
          body: _('confirm_modal_forward_to_peer_success'),
          bodyOutputType: 'trustedHtml',
          clickHandler: function () {
            $rootScope.$broadcast('history_focus', {
              peerString: peerStrings[0]
            })
            toaster.clear(toastData)
          },
          showCloseButton: false
        })
      })
    }

    function selectedForward (selectedMessageID) {
      var selectedMessageIDs = []
      if (selectedMessageID) {
        selectedMessageIDs.push(selectedMessageID)
      } else if ($scope.selectedCount > 0) {
        angular.forEach($scope.selectedMsgs, function (t, messageID) {
          selectedMessageIDs.push(messageID)
        })
      }
      if (selectedMessageIDs.length) {
        PeersSelectService.selectPeer({canSend: true}).then(function (peerString) {
          selectedCancel()
          $rootScope.$broadcast('history_focus', {
            peerString: peerString,
            attachment: {
              _: 'fwd_messages',
              id: selectedMessageIDs
            }
          })
        })
      }
    }

    function selectedReply (selectedMessageID) {
      if (!selectedMessageID && $scope.selectedCount == 1) {
        angular.forEach($scope.selectedMsgs, function (t, messageID) {
          selectedMessageID = messageID
        })
      }
      if (selectedMessageID) {
        selectedCancel()
        $scope.$broadcast('reply_selected', selectedMessageID)
      }
    }

    function selectedEdit (selectedMessageID) {
      if (!selectedMessageID && $scope.selectedCount == 1) {
        angular.forEach($scope.selectedMsgs, function (t, messageID) {
          selectedMessageID = messageID
        })
      }
      if (selectedMessageID) {
        selectedCancel()
        $scope.$broadcast('edit_selected', selectedMessageID)
      }
    }

    function toggleEdit () {
      if ($scope.historyState.selectActions) {
        selectedCancel()
      } else {
        $scope.historyState.selectActions = 'selected'
        $scope.$broadcast('ui_panel_update')
      }
    }

    function toggleMedia (mediaType) {
      if (mediaType == 'search') {
        $rootScope.$broadcast('history_search', $scope.curDialog.peerID)
        return
      }
      $scope.historyFilter.mediaType = mediaType || false
      if (mediaType) {
        $scope.curDialog.messageID = false
      }
      peerHistory.messages = []
      peerHistory.ids = []
      $scope.state.empty = true
      loadHistory()
    }

    function returnToRecent () {
      if ($scope.historyFilter.mediaType) {
        toggleMedia()
      } else {
        if ($scope.curDialog.messageID) {
          $rootScope.$broadcast('history_focus', {peerString: $scope.curDialog.peer})
        } else {
          loadHistory(true)
        }
      }
    }

    $scope.$on('history_update', angular.noop)

    var loadAfterSync = false
    $scope.$on('stateSynchronized', function () {
      if (!loadAfterSync) {
        return
      }
      if (loadAfterSync == $scope.curDialog.peerID) {
        loadHistory()
      }
      loadAfterSync = false
    })

    $scope.$on('reply_button_press', function (e, button) {
      var replyKeyboard = $scope.historyState.replyKeyboard
      if (!replyKeyboard) {
        return
      }
      var sendOptions = {
        replyToMsgID: peerID < 0 && replyKeyboard.mid
      }
      switch (button._) {
        case 'keyboardButtonRequestPhone':
          ErrorService.confirm({type: 'BOT_ACCESS_PHONE'}).then(function () {
            var user = AppUsersManager.getSelf()
            AppMessagesManager.sendOther(peerID, {
              _: 'inputMediaContact',
              phone_number: user.phone,
              first_name: user.first_name,
              last_name: user.last_name
            }, sendOptions)
          })
          break

        case 'keyboardButtonRequestGeoLocation':
          ErrorService.confirm({type: 'BOT_ACCESS_GEO'}).then(function () {
            return GeoLocationManager.getPosition().then(function (coords) {
              AppMessagesManager.sendOther(peerID, {
                _: 'inputMediaGeoPoint',
                geo_point: {
                  _: 'inputGeoPoint',
                  'lat': coords['lat'],
                  'long': coords['long']
                }
              }, sendOptions)
            }, function (error) {
              ErrorService.alert(
                _('error_modal_bad_request_title_raw'),
                _('error_modal_gelocation_na_raw')
              )
            })
          })
          break

        default:
          AppMessagesManager.sendText(peerID, button.text, sendOptions)
      }
    })

    $scope.$on('history_reload', function (e, updPeerID) {
      if (updPeerID == $scope.curDialog.peerID) {
        loadHistory()
      }
    })

    $scope.$on('history_forbidden', function (e, updPeerID) {
      if (updPeerID == $scope.curDialog.peerID) {
        $location.url('/im')
      }
      historiesQueuePop(updPeerID)
    })

    $scope.$on('dialog_migrate', function (e, data) {
      if (data.migrateFrom == $scope.curDialog.peerID) {
        var peerString = AppPeersManager.getPeerString(data.migrateTo)
        $rootScope.$broadcast('history_focus', {peerString: peerString})
      }
      historiesQueuePop(data.migrateFrom)
    })

    $scope.$on('notify_settings', function (e, data) {
      if (data.peerID == $scope.curDialog.peerID) {
        updateChannelActions()
      }
    })

    $scope.$on('channel_settings', function (e, data) {
      if (data.channelID == -$scope.curDialog.peerID) {
        updateChannelActions()
      }
    })

    var typingTimeouts = {}
    $scope.$on('history_append', function (e, addedMessage) {
      var history = historiesQueueFind(addedMessage.peerID)
      if (!history) {
        return
      }
      var curPeer = addedMessage.peerID == $scope.curDialog.peerID
      if (curPeer) {
        if ($scope.historyFilter.mediaType ||
          $scope.historyState.skipped) {
          if (addedMessage.my) {
            returnToRecent()
          } else {
            $scope.historyState.missedCount++
          }
          return
        }
        if ($scope.curDialog.messageID && addedMessage.my) {
          returnToRecent()
        }
        delete $scope.state.empty
      }
      // console.log('append', addedMessage)
      // console.trace()
      var historyMessage = AppMessagesManager.wrapForHistory(addedMessage.messageID)
      history.messages.push(historyMessage)
      history.ids.push(addedMessage.messageID)
      if (AppMessagesManager.regroupWrappedHistory(history.messages, -3)) {
        $scope.$broadcast('messages_regroup')
      }

      if (curPeer) {
        $scope.historyState.typing.splice(0, $scope.historyState.typing.length)
        $scope.$broadcast('ui_history_append_new', {
          my: addedMessage.my,
          idleScroll: unreadAfterIdle && !historyMessage.pFlags.out && $rootScope.idle.isIDLE
        })
        if (addedMessage.my && $scope.historyUnreadAfter) {
          delete $scope.historyUnreadAfter
          $scope.$broadcast('messages_unread_after')
        }

        // console.log('append check', $rootScope.idle.isIDLE, addedMessage.peerID, $scope.curDialog.peerID, historyMessage, history.messages[history.messages.length - 2])
        if ($rootScope.idle.isIDLE) {
          if (historyMessage.pFlags.unread &&
            !historyMessage.pFlags.out &&
            !(history.messages[history.messages.length - 2] || {}).pFlags.unread) {
            $scope.historyUnreadAfter = historyMessage.mid
            unreadAfterIdle = true
            $scope.$broadcast('messages_unread_after')
          }
        } else {
          $timeout(function () {
            AppMessagesManager.readHistory($scope.curDialog.peerID)
          })
        }

        updateBotActions()
        updateChannelActions()
      }
    })

    $scope.$on('history_multiappend', function (e, historyMultiAdded) {
      // console.log(dT(), 'multiappend', angular.copy(historyMultiAdded))
      var regroupped = false
      var unreadAfterChanged = false
      var isIDLE = $rootScope.idle.isIDLE
      angular.forEach(historyMultiAdded, function (msgs, peerID) {
        var history = historiesQueueFind(peerID)
        // var history = historiesQueuePush(peerID)
        if (!history) {
          return
        }
        var curPeer = peerID == $scope.curDialog.peerID
        var exlen = history.messages.length
        var len = msgs.length

        if (curPeer) {
          if ($scope.historyFilter.mediaType ||
            $scope.historyState.skipped) {
            $scope.historyState.missedCount += len
            return
          }
          delete $scope.state.empty
        }

        if ((!curPeer || isIDLE) &&
          exlen > (len > 10 ? 10 : 100)) {
          console.warn(dT(), 'Drop too many messages', len, exlen, isIDLE, curPeer, peerID)
          if (curPeer) {
            minID = history.messages[exlen - 1].mid
            $scope.historyState.skipped = hasLess = minID > 0
            if (hasLess) {
              loadAfterSync = peerID
              $scope.$broadcast('ui_history_append')
            }
          } else {
            historiesQueuePop(peerID)
          }
          return
        }

        var messageID, i
        var hasOut = false
        var unreadAfterNew = false
        var historyMessage = history.messages[history.messages.length - 1]
        var lastIsRead = !historyMessage || !historyMessage.pFlags.unread
        for (i = 0; i < len; i++) {
          messageID = msgs[i]
          if (messageID > 0 && messageID < maxID ||
              history.ids.indexOf(messageID) !== -1) {
            continue
          }
          historyMessage = AppMessagesManager.wrapForHistory(messageID)
          history.messages.push(historyMessage)
          history.ids.push(messageID)
          if (!unreadAfterNew && isIDLE) {
            if (historyMessage.pFlags.unread &&
              !historyMessage.pFlags.out &&
              lastIsRead) {
              unreadAfterNew = messageID
            } else {
              lastIsRead = !historyMessage.pFlags.unread
            }
          }
          if (!hasOut && historyMessage.pFlags.out) {
            hasOut = true
          }
        }
        // console.log('after append', angular.copy(history.messages), angular.copy(history.ids))

        if (AppMessagesManager.regroupWrappedHistory(history.messages, -len - 2)) {
          regroupped = true
        }

        if (curPeer) {
          if ($scope.historyState.typing.length) {
            $scope.historyState.typing.splice(0, $scope.historyState.typing.length)
          }
          $scope.$broadcast('ui_history_append_new', {
            idleScroll: unreadAfterIdle && !hasOut && isIDLE
          })

          if (isIDLE) {
            if (unreadAfterNew) {
              $scope.historyUnreadAfter = unreadAfterNew
              unreadAfterIdle = true
              unreadAfterChanged = true
            }
          } else {
            $timeout(function () {
              AppMessagesManager.readHistory($scope.curDialog.peerID)
            })
          }

          updateBotActions()
          updateChannelActions()
        }
      })

      if (regroupped) {
        $scope.$broadcast('messages_regroup')
      }
      if (unreadAfterChanged) {
        $scope.$broadcast('messages_unread_after')
      }
    })

    $scope.$on('history_delete', function (e, historyUpdate) {
      var history = historiesQueueFind(historyUpdate.peerID)
      if (!history) {
        return
      }
      var newMessages = []
      var i

      for (i = 0; i < history.messages.length; i++) {
        if (!historyUpdate.msgs[history.messages[i].mid]) {
          newMessages.push(history.messages[i])
        }
      }
      history.messages = newMessages
      AppMessagesManager.regroupWrappedHistory(history.messages)
      $scope.$broadcast('messages_regroup')
      if (historyUpdate.peerID == $scope.curDialog.peerID) {
        $scope.state.empty = !newMessages.length
        updateBotActions()
      }
    })

    $scope.$on('dialog_flush', function (e, dialog) {
      var history = historiesQueueFind(dialog.peerID)
      if (history) {
        history.messages = []
        history.ids = []
        if (dialog.peerID == $scope.curDialog.peerID) {
          $scope.state.empty = true
          updateBotActions()
        }
      }
    })

    $scope.$on('history_focus', function (e, peerData) {
      if ($scope.historyFilter.mediaType) {
        toggleMedia()
      }
    })

    $scope.$on('apiUpdate', function (e, update) {
      switch (update._) {
        case 'updateUserTyping':
        case 'updateChatUserTyping':
          AppUsersManager.forceUserOnline(update.user_id)
          if (AppUsersManager.hasUser(update.user_id) &&
            $scope.curDialog.peerID == (update._ == 'updateUserTyping'
              ? update.user_id
              : -update.chat_id
            )) {
            if ($scope.historyState.typing.indexOf(update.user_id) == -1) {
              $scope.historyState.typing.push(update.user_id)
            }
            $timeout.cancel(typingTimeouts[update.user_id])

            typingTimeouts[update.user_id] = $timeout(function () {
              var pos = $scope.historyState.typing.indexOf(update.user_id)
              if (pos !== -1) {
                $scope.historyState.typing.splice(pos, 1)
              }
            }, 6000)
          }
          break
      }
    })

    $scope.$on('history_need_less', showLessHistory)
    $scope.$on('history_need_more', showMoreHistory)

    $rootScope.$watch('idle.isIDLE', function (newVal) {
      if (!newVal &&
          $scope.curDialog &&
          $scope.curDialog.peerID &&
          !$scope.historyFilter.mediaType &&
          !$scope.historyState.skipped) {
        AppMessagesManager.readHistory($scope.curDialog.peerID)
      }
      if (!newVal) {
        unreadAfterIdle = false
        if (loadAfterSync &&
          loadAfterSync == $scope.curDialog.peerID) {
          loadHistory()
          loadAfterSync = false
        }
      }
    })
  })

  .controller('AppImPanelController', function ($scope) {
    $scope.$on('user_update', angular.noop)
  })

  .controller('AppImSendController', function ($rootScope, $q, $scope, $timeout, MtpApiManager, Storage, AppProfileManager, AppChatsManager, AppUsersManager, AppPeersManager, AppDocsManager, AppStickersManager, AppMessagesManager, AppInlineBotsManager, MtpApiFileManager, DraftsManager, RichTextProcessor) {
    $scope.$watch('curDialog.peer', resetDraft)
    $scope.$on('user_update', angular.noop)
    $scope.$on('peer_draft_attachment', applyDraftAttachment)
    $scope.$on('reply_selected', function (e, messageID) {
      replySelect(messageID, true)
    })
    $scope.$on('edit_selected', function (e, messageID) {
      setEditDraft(messageID, true)
    })

    $scope.$on('ui_typing', onTyping)

    $scope.draftMessage = {
      text: '',
      send: submitMessage,
      replyClear: replyClear,
      fwdsClear: fwdsClear,
      toggleSlash: toggleSlash,
      replyKeyboardToggle: replyKeyboardToggle,
      type: 'new'
    }
    $scope.mentions = {}
    $scope.commands = {}
    $scope.$watch('draftMessage.text', onMessageChange)
    $scope.$watch('draftMessage.files', onFilesSelected)
    $scope.$watch('draftMessage.sticker', onStickerSelected)
    $scope.$watch('draftMessage.command', onCommandSelected)
    $scope.$watch('draftMessage.inlineResultID', onInlineResultSelected)

    $scope.$on('history_reply_markup', function (e, peerData) {
      if (peerData.peerID == $scope.curDialog.peerID) {
        updateReplyKeyboard()
      }
    })

    $scope.$on('inline_bot_select', function (e, botID) {
      var bot = AppUsersManager.getUser(botID)
      $scope.draftMessage.text = '@' + bot.username + ' '
      $scope.$broadcast('ui_peer_draft', {focus: true})
    })

    $scope.$on('inline_bots_popular', updateMentions)

    $scope.$on('last_message_edit', setEditLastMessage)

    $rootScope.$watch('idle.isIDLE', function (newVal) {
      if ($rootScope.idle.initial) {
        return
      }
      if (newVal && $scope.curDialog.peerID) {
        $scope.$broadcast('ui_message_before_send')
        $timeout(function () {
          DraftsManager.syncDraft($scope.curDialog.peerID)
        })
      }
    })

    $scope.$on('draft_updated', function (e, draftUpdate) {
      if (draftUpdate.peerID == $scope.curDialog.peerID &&
          !draftUpdate.local &&
          (!$scope.draftMessage.text || $rootScope.idle.isIDLE)) {
        getDraft()
      }
    })

    var replyToMarkup = false
    var forceDraft = false
    var editMessageID = false

    function submitMessage (e) {
      $scope.$broadcast('ui_message_before_send')

      $timeout(function () {
        if (editMessageID) {
          editMessage()
        } else {
          sendMessage()
        }
      })

      return cancelEvent(e)
    }

    function sendMessage () {
      var text = $scope.draftMessage.text

      if (angular.isString(text) && text.length > 0) {
        text = RichTextProcessor.parseEmojis(text)

        var options = {
          replyToMsgID: $scope.draftMessage.replyToMsgID,
          clearDraft: true
        }
        do {
          AppMessagesManager.sendText($scope.curDialog.peerID, text.substr(0, 4096), options)
          text = text.substr(4096)
          options = angular.copy(options)
          delete options.clearDraft
        } while (text.length)
      }
      fwdsSend()

      if (forceDraft == $scope.curDialog.peer) {
        forceDraft = false
      }

      resetDraft()
      $scope.$broadcast('ui_message_send')
    }

    function editMessage () {
      var text = $scope.draftMessage.text
      text = RichTextProcessor.parseEmojis(text)

      AppMessagesManager.editMessage(editMessageID, text).then(function () {
        editMessageID = false

        resetDraft()
        $scope.$broadcast('ui_message_send')
        $timeout(function () {
          $scope.$broadcast('ui_peer_reply')
        })
      })
    }

    function updateMentions () {
      var peerID = $scope.curDialog.peerID

      if (!peerID) {
        safeReplaceObject($scope.mentions, {})
        $scope.$broadcast('mentions_update')
        return
      }

      var mentionUsers = []
      var mentionIndex = SearchIndexManager.createIndex()

      var inlineBotsPromise = AppInlineBotsManager.getPopularBots().then(function (inlineBots) {
        var ids = []
        angular.forEach(inlineBots, function (bot) {
          ids.push(bot.id)
        })
        return ids
      })
      var chatParticipantsPromise
      if (peerID < 0) {
        chatParticipantsPromise = AppProfileManager.getChatFull(-peerID).then(function (chatFull) {
          var participantsVector = (chatFull.participants || {}).participants || []
          var ids = []
          angular.forEach(participantsVector, function (participant) {
            ids.push(participant.user_id)
          })
          return ids
        })
      } else {
        chatParticipantsPromise = $q.when([])
      }

      $q.all({pop: inlineBotsPromise, chat: chatParticipantsPromise}).then(function (result) {
        var done = {}
        var ids = result.pop.concat(result.chat)
        angular.forEach(ids, function (userID) {
          if (done[userID]) {
            return
          }
          done[userID] = true
          mentionUsers.push(AppUsersManager.getUser(userID))
          SearchIndexManager.indexObject(userID, AppUsersManager.getUserSearchText(userID), mentionIndex)
        })

        safeReplaceObject($scope.mentions, {
          users: mentionUsers,
          index: mentionIndex
        })
        $scope.$broadcast('mentions_update')
      })
    }

    function updateCommands () {
      var peerID = $scope.curDialog.peerID
      if (!peerID) {
        safeReplaceObject($scope.commands, {})
        $scope.$broadcast('mentions_update')
        return
      }

      AppProfileManager.getPeerBots(peerID).then(function (peerBots) {
        if (!peerBots.length) {
          safeReplaceObject($scope.commands, {})
          $scope.$broadcast('mentions_update')
          return
        }

        var needMentions = peerID < 0
        var commandsList = []
        var commandsIndex = SearchIndexManager.createIndex()

        angular.forEach(peerBots, function (peerBot) {
          var mention = ''
          if (needMentions) {
            var bot = AppUsersManager.getUser(peerBot.id)
            if (bot && bot.username) {
              mention += '@' + bot.username
            }
          }
          var botSearchText = AppUsersManager.getUserSearchText(peerBot.id)
          angular.forEach(peerBot.commands, function (description, command) {
            var value = '/' + command + mention
            commandsList.push({
              botID: peerBot.id,
              value: value,
              rDescription: RichTextProcessor.wrapRichText(description, {noLinks: true, noLineBreaks: true})
            })
            SearchIndexManager.indexObject(value, botSearchText + ' ' + command + ' ' + description, commandsIndex)
          })
        })

        safeReplaceObject($scope.commands, {
          list: commandsList,
          index: commandsIndex
        })
        $scope.$broadcast('mentions_update')
      })
    }

    function resetDraft (newPeer, prevPeer) {
      var prevPeerID = prevPeer ? AppPeersManager.getPeerID(prevPeer) : 0
      if (newPeer != prevPeer && prevPeerID) {
        $scope.$broadcast('ui_message_before_send')
        $timeout(function () {
          DraftsManager.syncDraft(prevPeerID)
          resetDraft()
        })
        return
      }

      editMessageID = false

      updateMentions()
      updateCommands()
      replyClear()
      updateReplyKeyboard()

      delete $scope.draftMessage.inlineProgress
      $scope.$broadcast('inline_results', false)

      // console.log(dT(), 'reset draft', $scope.curDialog.peer, forceDraft)
      if (forceDraft) {
        if (forceDraft == $scope.curDialog.peer) {
          $scope.draftMessage.isBroadcast = AppPeersManager.isBroadcast($scope.curDialog.peerID)
          $scope.$broadcast('ui_peer_draft')
          return
        } else {
          forceDraft = false
        }
      }

      fwdsClear()
      getDraft()
    }

    function getDraft () {
      if ($scope.curDialog.peerID) {
        var draftDataPromise
        if (editMessageID) {
          draftDataPromise = AppMessagesManager.getMessageEditData(editMessageID).then(function (draftData) {
            draftData.replyToMsgID = editMessageID
            return draftData
          }, function (error) {
            console.warn(error)
            editMessageID = false
            getDraft()
            return $q.reject()
          })
        } else {
          draftDataPromise = DraftsManager.getDraft($scope.curDialog.peerID)
        }
        draftDataPromise.then(function (draftData) {
          $scope.draftMessage.type = editMessageID ? 'edit' : 'new'
          $scope.draftMessage.text = draftData ? draftData.text : ''
          $scope.draftMessage.isBroadcast = AppPeersManager.isBroadcast($scope.curDialog.peerID)
          if (draftData.replyToMsgID) {
            var replyToMsgID = draftData.replyToMsgID
            replySelect(replyToMsgID)
          } else {
            replyClear()
          }
          $scope.$broadcast('ui_peer_draft')
        })
      } else {
        // console.log('Reset peer')
        $scope.draftMessage.text = ''
        $scope.$broadcast('ui_peer_draft')
      }
    }

    function applyDraftAttachment (e, attachment) {
      console.log(dT(), 'apply draft attach', attachment)
      if (!attachment || !attachment._) {
        return
      }

      if (attachment._ == 'share_url') {
        var url = attachment.url
        var text = attachment.text || ' '
        forceDraft = $scope.curDialog.peer

        $timeout(function () {
          $scope.draftMessage.text = url + '\n' + text
          $scope.$broadcast('ui_peer_draft', {
            customSelection: [
              url + '\n',
              text,
              ''
            ]
          })
        }, 1000)
      } else if (attachment._ == 'fwd_messages') {
        forceDraft = $scope.curDialog.peer
        $timeout(function () {
          $scope.draftMessage.fwdMessages = attachment.id
          $scope.$broadcast('ui_peer_reply')
        }, 100)
      } else if (attachment._ == 'inline_query') {
        var mention = attachment.mention
        var query = attachment.query
        forceDraft = $scope.curDialog.peer

        $timeout(function () {
          $scope.draftMessage.text = mention + ' ' + query
          $scope.$broadcast('ui_peer_draft', {
            customSelection: [
              mention + ' ' + query,
              '',
              ''
            ]
          })
        }, 1000)
      }
    }

    function replySelect (messageID, byUser) {
      if (editMessageID && byUser) {
        replyClear()
        return
      }
      $scope.draftMessage.replyToMsgID = messageID
      $scope.$broadcast('ui_peer_reply')
      replyToMarkup = false

      if (byUser && !editMessageID) {
        DraftsManager.changeDraft($scope.curDialog.peerID, {
          text: $scope.draftMessage.text,
          replyToMsgID: messageID
        })
      }
    }

    function setEditDraft (messageID) {
      editMessageID = messageID
      getDraft()
    }

    function setEditLastMessage () {
      if (editMessageID ||
          !$scope.curDialog.peerID) {
        return false
      }
      AppMessagesManager.getHistory($scope.curDialog.peerID).then(function (historyResult) {
        for (var i = 0, messageID; i < historyResult.history.length; i++) {
          messageID = historyResult.history[i]
          if (AppMessagesManager.canEditMessage(messageID)) {
            setEditDraft(messageID)
            break
          }
        }
      })
    }

    function replyClear (byUser) {
      if (editMessageID) {
        editMessageID = false
        getDraft()
        return
      }
      var mid = $scope.draftMessage.replyToMsgID
      if (mid &&
        $scope.historyState.replyKeyboard &&
        $scope.historyState.replyKeyboard.mid == mid &&
        !$scope.historyState.replyKeyboard.pFlags.hidden) {
        $scope.historyState.replyKeyboard.pFlags.hidden = true
        $scope.$broadcast('ui_keyboard_update')
      }
      delete $scope.draftMessage.replyToMsgID
      $scope.$broadcast('ui_peer_reply')

      if (byUser) {
        DraftsManager.changeDraft($scope.curDialog.peerID, {
          text: $scope.draftMessage.text
        })
      }
    }

    function fwdsClear () {
      if ($scope.draftMessage.fwdMessages &&
        $scope.draftMessage.fwdMessages.length) {
        delete $scope.draftMessage.fwdMessages
        $scope.$broadcast('ui_peer_reply')

        if (forceDraft == $scope.curDialog.peer) {
          forceDraft = false
        }
      }
    }

    function fwdsSend () {
      if ($scope.draftMessage.fwdMessages &&
        $scope.draftMessage.fwdMessages.length) {
        var ids = $scope.draftMessage.fwdMessages.slice()
        fwdsClear()
        setZeroTimeout(function () {
          AppMessagesManager.forwardMessages($scope.curDialog.peerID, ids)
        })
      }
    }

    function toggleSlash ($event) {
      if ($scope.draftMessage.text &&
        $scope.draftMessage.text.charAt(0) == '/') {
        $scope.draftMessage.text = ''
      } else {
        $scope.draftMessage.text = '/'
      }
      $scope.$broadcast('ui_peer_draft', {focus: true})
      return cancelEvent($event)
    }

    function updateReplyKeyboard () {
      var peerID = $scope.curDialog.peerID
      var replyKeyboard = AppMessagesManager.getReplyKeyboard(peerID)
      if (replyKeyboard) {
        replyKeyboard = AppMessagesManager.wrapReplyMarkup(replyKeyboard)
      }
      // console.log('update reply markup', peerID, replyKeyboard)
      $scope.historyState.replyKeyboard = replyKeyboard

      var addReplyMessage =
      replyKeyboard &&
        !replyKeyboard.pFlags.hidden &&
        (replyKeyboard._ == 'replyKeyboardForceReply' ||
        (replyKeyboard._ == 'replyKeyboardMarkup' && peerID < 0))

      if (addReplyMessage) {
        replySelect(replyKeyboard.mid)
        replyToMarkup = true
      } else if (replyToMarkup) {
        replyClear()
      }
      var enabled = replyKeyboard &&
        !replyKeyboard.pFlags.hidden &&
        replyKeyboard._ == 'replyKeyboardMarkup'
      $scope.$broadcast('ui_keyboard_update', {enabled: enabled})
      $scope.$emit('ui_panel_update', {blur: enabled})
    }

    function replyKeyboardToggle ($event) {
      var replyKeyboard = $scope.historyState.replyKeyboard
      if (replyKeyboard) {
        replyKeyboard.pFlags.hidden = !replyKeyboard.pFlags.hidden
        updateReplyKeyboard()
      }
      return cancelEvent($event)
    }

    function onMessageChange (newVal, prevVal, a) {
      // console.log('ctrl text changed', newVal, prevVal);
      if (newVal === '' && prevVal === '') {
        return
      }

      if (newVal && newVal.length) {
        if (!$scope.historyFilter.mediaType && !$scope.historyState.skipped) {
          AppMessagesManager.readHistory($scope.curDialog.peerID)
        }
      }
      if ($scope.curDialog.peerID) {
        if (!editMessageID) {
          var replyToMsgID = $scope.draftMessage.replyToMsgID
          if (replyToMsgID &&
              $scope.historyState.replyKeyboard &&
              $scope.historyState.replyKeyboard.mid == replyToMsgID) {
            replyToMsgID = 0
          }
          DraftsManager.changeDraft($scope.curDialog.peerID, {
            text: newVal,
            replyToMsgID: replyToMsgID
          })
        }
        checkInlinePattern(newVal)
      }
    }

    var inlineUsernameRegex = /^@([a-zA-Z\d_]{1,32})( | )([\s\S]*)$/
    var inlineStickersEmojiRegex = /^\s*:(\S+):\s*$/
    var getInlineResultsTO = false
    var lastInlineBot = false
    var jump = 0

    function checkInlinePattern (message) {
      if (getInlineResultsTO) {
        $timeout.cancel(getInlineResultsTO)
      }
      var curJump = ++jump
      if (!message || !message.length) {
        delete $scope.draftMessage.inlineProgress
        $scope.$broadcast('inline_results', false)
        return
      }
      var matches = message.match(inlineUsernameRegex)
      if (!matches) {
        matches = message.match(inlineStickersEmojiRegex)
        if (matches) {
          var emojiCode = EmojiHelper.shortcuts[matches[1]]
          if (emojiCode) {
            $scope.draftMessage.inlineProgress = true
            AppStickersManager.searchStickers(emojiCode).then(function (docs) {
              var inlineResults = []
              angular.forEach(docs, function (doc) {
                inlineResults.push({
                  _: 'botInlineMediaResult',
                  qID: '_sticker_' + doc.id,
                  pFlags: {sticker: true},
                  id: doc.id,
                  type: 'sticker',
                  document: doc,
                  send_message: {_: 'botInlineMessageMediaAuto'}
                })
              })
              var botResults = {
                pFlags: {gallery: true},
                query_id: 0,
                results: inlineResults
              }
              botResults.text = message
              $scope.$broadcast('inline_results', botResults)
              delete $scope.draftMessage.inlineProgress
            })
          } else {
            delete $scope.draftMessage.inlineProgress
            $scope.$broadcast('inline_results', false)
            return
          }
        }
        delete $scope.draftMessage.inlineProgress
        $scope.$broadcast('inline_results', false)
        return
      }
      var username = matches[1]
      var inlineBotPromise
      $scope.draftMessage.inlineProgress = true
      if (lastInlineBot && lastInlineBot.username == username) {
        inlineBotPromise = $q.when(lastInlineBot)
      } else {
        inlineBotPromise = AppInlineBotsManager.resolveInlineMention(username)
      }
      inlineBotPromise.then(function (inlineBot) {
        if (curJump != jump) {
          return
        }
        lastInlineBot = inlineBot
        $scope.$broadcast('inline_placeholder', {
          prefix: '@' + username + matches[2],
          placeholder: inlineBot.placeholder
        })
        if (getInlineResultsTO) {
          $timeout.cancel(getInlineResultsTO)
        }
        getInlineResultsTO = $timeout(function () {
          var query = RichTextProcessor.parseEmojis(matches[3])
          AppInlineBotsManager.getInlineResults($scope.curDialog.peerID, inlineBot.id, query, inlineBot.geo, '').then(function (botResults) {
            getInlineResultsTO = false
            if (curJump != jump) {
              return
            }
            botResults.text = message
            $scope.$broadcast('inline_results', botResults)
            delete $scope.draftMessage.inlineProgress
          }, function () {
            $scope.$broadcast('inline_results', false)
            delete $scope.draftMessage.inlineProgress
          })
        }, 500)
      }, function (error) {
        $scope.$broadcast('inline_results', false)
        delete $scope.draftMessage.inlineProgress
      })
    }

    function onTyping () {
      if (AppPeersManager.isBroadcast($scope.curDialog.peerID)) {
        return false
      }
      MtpApiManager.invokeApi('messages.setTyping', {
        peer: AppPeersManager.getInputPeerByID($scope.curDialog.peerID),
        action: {_: 'sendMessageTypingAction'}
      })['catch'](function (error) {
        error.handled = true
      })
    }

    function onFilesSelected (newVal) {
      if (!angular.isArray(newVal) || !newVal.length) {
        return
      }
      var options = {
        replyToMsgID: $scope.draftMessage.replyToMsgID,
        isMedia: $scope.draftMessage.isMedia
      }

      delete $scope.draftMessage.replyToMsgID

      if (newVal[0].lastModified) {
        newVal.sort(function (file1, file2) {
          return file1.lastModified - file2.lastModified
        })
      }

      for (var i = 0; i < newVal.length; i++) {
        AppMessagesManager.sendFile($scope.curDialog.peerID, newVal[i], options)
        $scope.$broadcast('ui_message_send')
      }
      fwdsSend()
    }

    function onStickerSelected (newVal) {
      if (!newVal) {
        return
      }

      var doc = AppDocsManager.getDoc(newVal)
      if (doc.id && doc.access_hash) {
        var inputMedia = {
          _: 'inputMediaDocument',
          id: {
            _: 'inputDocument',
            id: doc.id,
            access_hash: doc.access_hash
          }
        }
        var options = {
          replyToMsgID: $scope.draftMessage.replyToMsgID
        }
        AppMessagesManager.sendOther($scope.curDialog.peerID, inputMedia, options)
        $scope.$broadcast('ui_message_send')

        fwdsSend()
        replyClear(true)
      }
      delete $scope.draftMessage.sticker
    }

    function onCommandSelected (command) {
      if (!command) {
        return
      }
      AppMessagesManager.sendText($scope.curDialog.peerID, command, {
        clearDraft: true
      })

      if (forceDraft == $scope.curDialog.peer) {
        forceDraft = false
      }

      fwdsSend()
      resetDraft()
      delete $scope.draftMessage.sticker
      delete $scope.draftMessage.text
      delete $scope.draftMessage.command
      delete $scope.draftMessage.inlineResultID
      $scope.$broadcast('ui_message_send')
      $scope.$broadcast('ui_peer_draft')
    }

    function onInlineResultSelected (qID) {
      if (!qID) {
        return
      }

      if (qID.substr(0, 11) == '_switch_pm_') {
        var botID = lastInlineBot.id
        var startParam = qID.substr(11)
        return AppInlineBotsManager.switchToPM($scope.curDialog.peerID, botID, startParam)
      }

      var options = {
        replyToMsgID: $scope.draftMessage.replyToMsgID,
        clearDraft: true
      }

      if (qID.substr(0, 9) == '_sticker_') {
        var docID = qID.substr(9)
        var doc = AppDocsManager.getDoc(docID)
        if (doc.id && doc.access_hash) {
          var inputMedia = {
            _: 'inputMediaDocument',
            id: {
              _: 'inputDocument',
              id: doc.id,
              access_hash: doc.access_hash
            }
          }
          AppMessagesManager.sendOther($scope.curDialog.peerID, inputMedia, options)
        }
      }
      else {
        AppInlineBotsManager.sendInlineResult($scope.curDialog.peerID, qID, options)
      }


      if (forceDraft == $scope.curDialog.peer) {
        forceDraft = false
      }

      fwdsSend()
      resetDraft()
      delete $scope.draftMessage.sticker
      delete $scope.draftMessage.text
      delete $scope.draftMessage.command
      delete $scope.draftMessage.inlineResultID
      $scope.$broadcast('ui_message_send')
      $scope.$broadcast('ui_peer_draft')
    }
  })

  .controller('AppLangSelectController', function ($scope, _, Storage, ErrorService, AppRuntimeManager) {
    $scope.supportedLocales = Config.I18n.supported
    $scope.langNames = Config.I18n.languages
    $scope.curLocale = Config.I18n.locale
    $scope.form = {locale: Config.I18n.locale}

    $scope.localeSelect = function localeSelect (newLocale) {
      newLocale = newLocale || $scope.form.locale
      if ($scope.curLocale !== newLocale) {
        ErrorService.confirm({type: 'APPLY_LANG_WITH_RELOAD'}).then(function () {
          Storage.set({i18n_locale: newLocale}).then(function () {
            AppRuntimeManager.reload()
          })
        }, function () {
          $scope.form.locale = $scope.curLocale
        })
      }
    }
  })

  .controller('AppFooterController', function ($scope, LayoutSwitchService) {
    $scope.switchLayout = function (mobile) {
      LayoutSwitchService.switchLayout(mobile)
    }
  })

  .controller('PhotoModalController', function ($q, $scope, $rootScope, $modalInstance, AppPhotosManager, AppMessagesManager, AppPeersManager, AppWebPagesManager, PeersSelectService, ErrorService) {
    $scope.photo = AppPhotosManager.wrapForFull($scope.photoID)
    $scope.nav = {}

    $scope.download = function () {
      AppPhotosManager.downloadPhoto($scope.photoID)
    }

    if (!$scope.messageID) {
      return
    }

    $scope.forward = function () {
      var messageID = $scope.messageID

      PeersSelectService.selectPeer({canSend: true}).then(function (peerString) {
        $rootScope.$broadcast('history_focus', {
          peerString: peerString,
          attachment: {
            _: 'fwd_messages',
            id: [messageID]
          }
        })
      })
    }

    $scope.goToMessage = function () {
      var messageID = $scope.messageID
      var peerID = AppMessagesManager.getMessagePeer(AppMessagesManager.getMessage(messageID))
      var peerString = AppPeersManager.getPeerString(peerID)
      $modalInstance.dismiss()
      $rootScope.$broadcast('history_focus', {peerString: peerString, messageID: messageID})
    }

    $scope['delete'] = function () {
      var messageID = $scope.messageID
      ErrorService.confirm({type: 'MESSAGE_DELETE'}).then(function () {
        AppMessagesManager.deleteMessages([messageID])
      })
    }

    var peerID = AppMessagesManager.getMessagePeer(AppMessagesManager.getMessage($scope.messageID))
    var inputPeer = AppPeersManager.getInputPeerByID(peerID)
    var inputQuery = ''
    var inputFilter = {_: 'inputMessagesFilterPhotos'}
    var list = [$scope.messageID]
    var preloaded = {}
    var maxID = $scope.messageID
    var hasMore = true

    preloaded[$scope.messageID] = true

    updatePrevNext()

    function preloadPhotos (sign) {
      // var preloadOffsets = sign < 0 ? [-1,-2,1,-3,2] : [1,2,-1,3,-2]
      var preloadOffsets = sign < 0 ? [-1, -2] : [1, 2]
      var index = list.indexOf($scope.messageID)
      angular.forEach(preloadOffsets, function (offset) {
        var messageID = list[index + offset]
        if (messageID !== undefined && preloaded[messageID] === undefined) {
          preloaded[messageID] = true
          var message = AppMessagesManager.getMessage(messageID)
          var photoID = message.media.photo.id
          AppPhotosManager.preloadPhoto(photoID)
        }
      })
    }

    function updatePrevNext (count) {
      var index = list.indexOf($scope.messageID)
      if (hasMore) {
        if (count) {
          $scope.count = Math.max(count, list.length)
        }
      } else {
        $scope.count = list.length
      }
      $scope.pos = $scope.count - index
      $scope.nav.hasNext = index > 0
      $scope.nav.hasPrev = hasMore || index < list.length - 1
      $scope.canForward = $scope.canDelete = $scope.messageID > 0
    }

    $scope.nav.next = function () {
      if (!$scope.nav.hasNext) {
        return false
      }

      movePosition(-1)
    }

    $scope.nav.prev = function () {
      if (!$scope.nav.hasPrev) {
        return false
      }
      movePosition(+1)
    }

    $scope.$on('history_delete', function (e, historyUpdate) {
      if (historyUpdate.peerID == peerID) {
        if (historyUpdate.msgs[$scope.messageID]) {
          if ($scope.nav.hasNext) {
            $scope.nav.next()
          } else if ($scope.nav.hasPrev) {
            $scope.nav.prev()
          } else {
            return $modalInstance.dismiss()
          }
        }
        var newList = []
        for (var i = 0; i < list.length; i++) {
          if (!historyUpdate.msgs[list[i]]) {
            newList.push(list[i])
          }
        }
        list = newList
      }
    })

    if ($scope.webpageID) {
      $scope.webpage = AppWebPagesManager.wrapForHistory($scope.webpageID)
      return
    }

    AppMessagesManager.getSearch(peerID, inputQuery, inputFilter, 0, 1000).then(function (searchCachedResult) {
      if (searchCachedResult.history.indexOf($scope.messageID) >= 0) {
        list = searchCachedResult.history
        maxID = list[list.length - 1]

        updatePrevNext()
        preloadPhotos(+1)
      }
      loadMore()
    }, loadMore)

    var jump = 0
    function movePosition (sign) {
      var curIndex = list.indexOf($scope.messageID)
      var index = curIndex >= 0 ? curIndex + sign : 0
      var curJump = ++jump

      var promise = index >= list.length ? loadMore() : $q.when()
      promise.then(function () {
        if (curJump != jump) {
          return
        }

        var messageID = list[index]
        var message = AppMessagesManager.getMessage(messageID)
        var photoID = message && message.media &&
          ((message.media.photo && message.media.photo.id) ||
            (message.media.webpage && message.media.webpage.photo && message.media.webpage.photo.id))
        if (!photoID) {
          console.error('Invalid photo message', index, list, messageID, message)
          return
        }

        $scope.messageID = messageID
        $scope.photoID = photoID
        $scope.photo = AppPhotosManager.wrapForFull($scope.photoID)

        preloaded[$scope.messageID] = true

        updatePrevNext()

        if (sign > 0 && hasMore && list.indexOf(messageID) + 1 >= list.length) {
          loadMore()
        } else {
          preloadPhotos(sign)
        }
      })
    }

    var loadingPromise = false
    function loadMore () {
      if (loadingPromise) return loadingPromise

      return loadingPromise = AppMessagesManager.getSearch(peerID, inputQuery, inputFilter, maxID).then(function (searchResult) {
        if (searchResult.history.length) {
          maxID = searchResult.history[searchResult.history.length - 1]
          list = list.concat(searchResult.history)
          hasMore = list.length < searchResult.count
        } else {
          hasMore = false
        }

        updatePrevNext(searchResult.count)
        loadingPromise = false

        if (searchResult.history.length) {
          return $q.reject()
        }

        preloadPhotos(+1)
      })
    }
  })

  .controller('UserpicModalController', function ($q, $scope, $rootScope, $modalInstance, MtpApiManager, AppPhotosManager, AppUsersManager, AppPeersManager, AppMessagesManager, ApiUpdatesManager, PeersSelectService, ErrorService) {
    $scope.photo = AppPhotosManager.wrapForFull($scope.photoID)
    $scope.photo.thumb = {
      location: AppPhotosManager.choosePhotoSize($scope.photo, 0, 0).location
    }

    $scope.nav = {}
    $scope.canForward = true

    var list = [$scope.photoID]
    var maxID = $scope.photoID
    var preloaded = {}
    var myID = 0
    var hasMore = true

    updatePrevNext()

    AppPhotosManager.getUserPhotos($scope.userID, 0, 1000).then(function (userpicCachedResult) {
      if (userpicCachedResult.photos.indexOf($scope.photoID) >= 0) {
        list = userpicCachedResult.photos
        maxID = list[list.length - 1]
      }
      hasMore = list.length < userpicCachedResult.count
      updatePrevNext()
    })

    MtpApiManager.getUserID().then(function (id) {
      myID = id
      $scope.canDelete = $scope.photo.user_id == myID
    })

    var jump = 0
    function movePosition (sign, deleteCurrent) {
      var curIndex = list.indexOf($scope.photoID)
      var index = curIndex >= 0 ? curIndex + sign : 0
      var curJump = ++jump

      var promise = index >= list.length ? loadMore() : $q.when()
      promise.then(function () {
        if (curJump != jump) {
          return
        }

        $scope.photoID = list[index]
        $scope.photo = AppPhotosManager.wrapForFull($scope.photoID)
        $scope.photo.thumb = {
          location: AppPhotosManager.choosePhotoSize($scope.photo, 0, 0).location
        }

        var newCount
        if (deleteCurrent) {
          list.splice(curIndex, 1)
          newCount = $scope.count - 1
        }

        updatePrevNext(newCount)

        preloaded[$scope.photoID] = true

        updatePrevNext()

        if (sign > 0 && hasMore && list.indexOf($scope.photoID) + 1 >= list.length) {
          loadMore()
        } else {
          preloadPhotos(sign)
        }
      })
    }

    function preloadPhotos (sign) {
      var preloadOffsets = sign < 0 ? [-1, -2] : [1, 2]
      var index = list.indexOf($scope.photoID)
      angular.forEach(preloadOffsets, function (offset) {
        var photoID = list[index + offset]
        if (photoID !== undefined && preloaded[photoID] === undefined) {
          preloaded[photoID] = true
          AppPhotosManager.preloadPhoto(photoID)
        }
      })
    }

    var loadingPromise = false
    function loadMore () {
      if (loadingPromise) return loadingPromise

      return loadingPromise = AppPhotosManager.getUserPhotos($scope.userID, maxID).then(function (userpicResult) {
        if (userpicResult.photos.length) {
          maxID = userpicResult.photos[userpicResult.photos.length - 1]
          list = list.concat(userpicResult.photos)

          hasMore = list.length < userpicResult.count
        } else {
          hasMore = false
        }

        updatePrevNext(userpicResult.count)
        loadingPromise = false

        if (userpicResult.photos.length) {
          return $q.reject()
        }

        preloadPhotos(+1)
      })
    }

    function updatePrevNext (count) {
      var index = list.indexOf($scope.photoID)
      if (hasMore) {
        if (count) {
          $scope.count = Math.max(count, list.length)
        }
      } else {
        $scope.count = list.length
      }
      $scope.pos = $scope.count - index
      $scope.nav.hasNext = index > 0
      $scope.nav.hasPrev = hasMore || index < list.length - 1
      $scope.canDelete = $scope.photo.user_id == myID
    }

    $scope.nav.next = function () {
      if (!$scope.nav.hasNext) {
        return false
      }

      movePosition(-1)
    }

    $scope.nav.prev = function () {
      if (!$scope.nav.hasPrev) {
        return false
      }
      movePosition(+1)
    }

    $scope.forward = function () {
      PeersSelectService.selectPeer({confirm_type: 'FORWARD_PEER', canSend: true}).then(function (peerString) {
        var peerID = AppPeersManager.getPeerID(peerString)
        AppMessagesManager.sendOther(peerID, {
          _: 'inputMediaPhoto',
          id: {
            _: 'inputPhoto',
            id: $scope.photoID,
            access_hash: $scope.photo.access_hash
          }
        })
        $rootScope.$broadcast('history_focus', {peerString: peerString})
      })
    }

    $scope['delete'] = function () {
      var photoID = $scope.photoID
      var myUser = AppUsersManager.getUser(myID)
      var onDeleted = function () {
        if (!$scope.nav.hasNext && !$scope.nav.hasPrev) {
          return $modalInstance.dismiss()
        }
        movePosition($scope.nav.hasNext ? -1 : +1, true)
      }

      ErrorService.confirm({type: 'PHOTO_DELETE'}).then(function () {
        if (myUser && myUser.photo && myUser.photo.photo_id == photoID) {
          MtpApiManager.invokeApi('photos.updateProfilePhoto', {
            id: {_: 'inputPhotoEmpty'}
          }).then(function (updateResult) {
            ApiUpdatesManager.processUpdateMessage({
              _: 'updateShort',
              update: {
                _: 'updateUserPhoto',
                user_id: myID,
                date: tsNow(true),
                photo: updateResult,
                previous: true
              }
            })
            onDeleted()
          })
        } else {
          MtpApiManager.invokeApi('photos.deletePhotos', {
            id: [{_: 'inputPhoto', id: photoID, access_hash: 0}]
          }).then(onDeleted)
        }
      })
    }

    $scope.download = function () {
      AppPhotosManager.downloadPhoto($scope.photoID)
    }
  })

  .controller('ChatpicModalController', function ($q, $scope, $rootScope, $modalInstance, MtpApiManager, AppPhotosManager, AppChatsManager, AppPeersManager, AppMessagesManager, ApiUpdatesManager, PeersSelectService, ErrorService) {
    $scope.photo = AppPhotosManager.wrapForFull($scope.photoID)
    $scope.photo.thumb = {
      location: AppPhotosManager.choosePhotoSize($scope.photo, 0, 0).location
    }

    var chat = AppChatsManager.getChat($scope.chatID)
    var isChannel = AppChatsManager.isChannel($scope.chatID)

    $scope.canForward = true
    $scope.canDelete = isChannel ? chat.pFlags.creator : true

    $scope.forward = function () {
      PeersSelectService.selectPeer({confirm_type: 'FORWARD_PEER', canSend: true}).then(function (peerString) {
        var peerID = AppPeersManager.getPeerID(peerString)
        AppMessagesManager.sendOther(peerID, {
          _: 'inputMediaPhoto',
          id: {
            _: 'inputPhoto',
            id: $scope.photoID,
            access_hash: $scope.photo.access_hash
          }
        })
        $rootScope.$broadcast('history_focus', {peerString: peerString})
      })
    }

    $scope['delete'] = function () {
      ErrorService.confirm({type: 'PHOTO_DELETE'}).then(function () {
        $scope.photo.updating = true
        var apiPromise
        if (AppChatsManager.isChannel($scope.chatID)) {
          apiPromise = MtpApiManager.invokeApi('channels.editPhoto', {
            channel: AppChatsManager.getChannelInput($scope.chatID),
            photo: {_: 'inputChatPhotoEmpty'}
          })
        } else {
          apiPromise = MtpApiManager.invokeApi('messages.editChatPhoto', {
            chat_id: AppChatsManager.getChatInput($scope.chatID),
            photo: {_: 'inputChatPhotoEmpty'}
          })
        }
        apiPromise.then(function (updates) {
          ApiUpdatesManager.processUpdateMessage(updates)
          $modalInstance.dismiss()
          $rootScope.$broadcast('history_focus', {peerString: AppChatsManager.getChatString($scope.chatID)})
        })['finally'](function () {
          $scope.photo.updating = false
        })
      })
    }

    $scope.download = function () {
      AppPhotosManager.downloadPhoto($scope.photoID)
    }
  })

  .controller('VideoModalController', function ($scope, $rootScope, $modalInstance, PeersSelectService, AppMessagesManager, AppDocsManager, AppPeersManager, ErrorService) {
    $scope.video = AppDocsManager.wrapVideoForFull($scope.docID)

    $scope.progress = {enabled: false}
    $scope.player = {}

    $scope.forward = function () {
      var messageID = $scope.messageID
      PeersSelectService.selectPeer({canSend: true}).then(function (peerString) {
        $rootScope.$broadcast('history_focus', {
          peerString: peerString,
          attachment: {
            _: 'fwd_messages',
            id: [messageID]
          }
        })
      })
    }

    $scope['delete'] = function () {
      var messageID = $scope.messageID
      ErrorService.confirm({type: 'MESSAGE_DELETE'}).then(function () {
        AppMessagesManager.deleteMessages([messageID])
      })
    }

    $scope.download = function () {
      AppDocsManager.saveDocFile($scope.docID)
    }

    $scope.$on('history_delete', function (e, historyUpdate) {
      if (historyUpdate && historyUpdate.msgs && historyUpdate.msgs[$scope.messageID]) {
        $modalInstance.dismiss()
      }
    })
  })

  .controller('DocumentModalController', function ($scope, $rootScope, $modalInstance, PeersSelectService, AppMessagesManager, AppDocsManager, AppPeersManager, ErrorService) {
    $scope.document = AppDocsManager.wrapForHistory($scope.docID)

    $scope.forward = function () {
      var messageID = $scope.messageID
      PeersSelectService.selectPeer({canSend: true}).then(function (peerString) {
        $rootScope.$broadcast('history_focus', {
          peerString: peerString,
          attachment: {
            _: 'fwd_messages',
            id: [messageID]
          }
        })
      })
    }

    $scope['delete'] = function () {
      var messageID = $scope.messageID
      ErrorService.confirm({type: 'MESSAGE_DELETE'}).then(function () {
        AppMessagesManager.deleteMessages([messageID])
      })
    }

    $scope.download = function () {
      AppDocsManager.saveDocFile($scope.docID)
    }

    $scope.$on('history_delete', function (e, historyUpdate) {
      if (historyUpdate && historyUpdate.msgs && historyUpdate.msgs[$scope.messageID]) {
        $modalInstance.dismiss()
      }
    })
  })

  .controller('EmbedModalController', function ($q, $scope, $rootScope, $modalInstance, AppPhotosManager, AppMessagesManager, AppPeersManager, AppWebPagesManager, PeersSelectService, ErrorService) {
    $scope.webpage = AppWebPagesManager.wrapForFull($scope.webpageID)

    $scope.nav = {}

    $scope.forward = function () {
      var messageID = $scope.messageID
      PeersSelectService.selectPeer({canSend: true}).then(function (peerString) {
        $rootScope.$broadcast('history_focus', {
          peerString: peerString,
          attachment: {
            _: 'fwd_messages',
            id: [messageID]
          }
        })
      })
    }

    $scope['delete'] = function () {
      var messageID = $scope.messageID
      ErrorService.confirm({type: 'MESSAGE_DELETE'}).then(function () {
        AppMessagesManager.deleteMessages([messageID])
      })
    }
  })

  .controller('GameModalController', function ($q, $scope, $rootScope, $modalInstance, AppPhotosManager, AppMessagesManager, AppPeersManager, AppGamesManager, PeersSelectService, ErrorService) {
    $scope.game = AppGamesManager.wrapForFull($scope.gameID, $scope.messageID, $scope.embedUrl)
    var messageID = $scope.messageID

    var message = AppMessagesManager.getMessage(messageID)
    $scope.botID = message.viaBotID || message.fromID

    $scope.nav = {}

    $scope.forward = function (withMyScore) {
      PeersSelectService.selectPeer({canSend: true, confirm_type: 'INVITE_TO_GAME'}).then(function (peerString) {
        var peerID = AppPeersManager.getPeerID(peerString)
        AppMessagesManager.forwardMessages(peerID, [messageID], {
          withMyScore: withMyScore
        }).then(function () {
          $rootScope.$broadcast('history_focus', {
            peerString: peerString
          })
        })
      })
    }

    $scope.$on('game_frame_event', function (e, eventData) {
      if (eventData.eventType == 'share_score') {
        $scope.forward(true)
      }
    })
  })

  .controller('UserModalController', function ($scope, $location, $rootScope, $modalInstance, AppProfileManager, $modal, AppUsersManager, MtpApiManager, NotificationsManager, AppPhotosManager, AppMessagesManager, AppPeersManager, PeersSelectService, ErrorService) {
    var peerString = AppUsersManager.getUserString($scope.userID)

    $scope.user = AppUsersManager.getUser($scope.userID)
    $scope.blocked = false

    $scope.settings = {notifications: true}

    AppProfileManager.getProfile($scope.userID, $scope.override).then(function (userFull) {
      $scope.blocked = userFull.pFlags.blocked
      $scope.bot_info = userFull.bot_info
      $scope.rAbout = userFull.rAbout

      NotificationsManager.getPeerMuted($scope.userID).then(function (muted) {
        $scope.settings.notifications = !muted

        $scope.$watch('settings.notifications', function (newValue, oldValue) {
          if (newValue === oldValue) {
            return false
          }
          NotificationsManager.getPeerSettings($scope.userID).then(function (settings) {
            settings.mute_until = newValue ? 0 : 2000000000
            NotificationsManager.updatePeerSettings($scope.userID, settings)
          })
        })
      })
    })

    $scope.goToHistory = function () {
      $rootScope.$broadcast('history_focus', {peerString: peerString})
    }

    $scope.flushHistory = function (justClear) {
      ErrorService.confirm({type: justClear ? 'HISTORY_FLUSH' : 'HISTORY_FLUSH_AND_DELETE'}).then(function () {
        AppMessagesManager.flushHistory($scope.userID, justClear).then(function () {
          if (justClear) {
            $scope.goToHistory()
          } else {
            $modalInstance.close()
            $location.url('/im')
          }
        })
      })
    }

    $scope.importContact = function (edit) {
      var scope = $rootScope.$new()
      scope.importContact = {
        phone: $scope.user.phone,
        first_name: $scope.user.first_name,
        last_name: $scope.user.last_name
      }

      $modal.open({
        templateUrl: templateUrl(edit ? 'edit_contact_modal' : 'import_contact_modal'),
        controller: 'ImportContactModalController',
        windowClass: 'md_simple_modal_window mobile_modal',
        scope: scope
      }).result.then(function (foundUserID) {
        if ($scope.userID == foundUserID) {
          $scope.user = AppUsersManager.getUser($scope.userID)
        }
      })
    }

    $scope.deleteContact = function () {
      AppUsersManager.deleteContacts([$scope.userID]).then(function () {
        $scope.user = AppUsersManager.getUser($scope.userID)
      })
    }

    $scope.inviteToGroup = function () {
      PeersSelectService.selectPeer({
        confirm_type: 'INVITE_TO_GROUP',
        noUsers: true
      }).then(function (peerString) {
        var peerID = AppPeersManager.getPeerID(peerString)
        var chatID = peerID < 0 ? -peerID : 0
        AppMessagesManager.startBot($scope.user.id, chatID).then(function () {
          $rootScope.$broadcast('history_focus', {peerString: peerString})
        })
      })
    }

    $scope.sendCommand = function (command) {
      AppMessagesManager.sendText($scope.userID, '/' + command)
      $rootScope.$broadcast('history_focus', {
        peerString: peerString
      })
    }

    $scope.toggleBlock = function (block) {
      MtpApiManager.invokeApi(block ? 'contacts.block' : 'contacts.unblock', {
        id: AppUsersManager.getUserInput($scope.userID)
      }).then(function () {
        $scope.blocked = block
      })
    }

    $scope.shareContact = function () {
      PeersSelectService.selectPeer({confirm_type: 'SHARE_CONTACT_PEER', canSend: true}).then(function (peerString) {
        var peerID = AppPeersManager.getPeerID(peerString)
        AppMessagesManager.sendOther(peerID, {
          _: 'inputMediaContact',
          phone_number: $scope.user.phone,
          first_name: $scope.user.first_name,
          last_name: $scope.user.last_name,
          user_id: $scope.user.id
        })
        $rootScope.$broadcast('history_focus', {peerString: peerString})
      })
    }
  })

  .controller('ChatModalController', function ($scope, $modalInstance, $location, $timeout, $rootScope, $modal, AppUsersManager, AppChatsManager, AppProfileManager, AppPhotosManager, MtpApiManager, MtpApiFileManager, NotificationsManager, AppMessagesManager, AppPeersManager, ApiUpdatesManager, ContactsSelectService, ErrorService) {
    $scope.chatFull = AppChatsManager.wrapForFull($scope.chatID, {})
    $scope.settings = {notifications: true}

    $scope.maxParticipants = 200

    AppProfileManager.getChatFull($scope.chatID).then(function (chatFull) {
      $scope.chatFull = AppChatsManager.wrapForFull($scope.chatID, chatFull)
      $scope.$broadcast('ui_height')

      $scope.needMigrate = $scope.chatFull &&
        $scope.chatFull.participants &&
        $scope.chatFull.participants.participants &&
        $scope.chatFull.participants.participants.length >= 200

      if (Config.Modes.test || Config.Modes.debug) {
        $scope.needMigrate = true
      }

      NotificationsManager.getPeerMuted(-$scope.chatID).then(function (muted) {
        $scope.settings.notifications = !muted

        $scope.$watch('settings.notifications', function (newValue, oldValue) {
          if (newValue === oldValue) {
            return false
          }
          NotificationsManager.getPeerSettings(-$scope.chatID).then(function (settings) {
            if (newValue) {
              settings.mute_until = 0
            } else {
              settings.mute_until = 2000000000
            }
            NotificationsManager.updatePeerSettings(-$scope.chatID, settings)
          })
        })
      })
    })

    function onChatUpdated (updates) {
      ApiUpdatesManager.processUpdateMessage(updates)
      $rootScope.$broadcast('history_focus', {peerString: $scope.chatFull.peerString})
    }

    $scope.leaveGroup = function () {
      ErrorService.confirm({type: 'HISTORY_LEAVE_AND_FLUSH'}).then(function () {
        MtpApiManager.invokeApi('messages.deleteChatUser', {
          chat_id: AppChatsManager.getChatInput($scope.chatID),
          user_id: {_: 'inputUserSelf'}
        }).then(function (updates) {
          ApiUpdatesManager.processUpdateMessage(updates)
          AppMessagesManager.flushHistory(-$scope.chatID).then(function () {
            $modalInstance.close()
            $location.url('/im')
          })
        })
      })
    }

    $scope.inviteToGroup = function () {
      var disabled = []
      angular.forEach($scope.chatFull.participants.participants, function (participant) {
        disabled.push(participant.user_id)
      })

      ContactsSelectService.selectContacts({disabled: disabled}).then(function (userIDs) {
        angular.forEach(userIDs, function (userID) {
          MtpApiManager.invokeApi('messages.addChatUser', {
            chat_id: AppChatsManager.getChatInput($scope.chatID),
            user_id: AppUsersManager.getUserInput(userID),
            fwd_limit: 100
          }).then(function (updates) {
            ApiUpdatesManager.processUpdateMessage(updates)
          })
        })

        $rootScope.$broadcast('history_focus', {peerString: $scope.chatFull.peerString})
      })
    }

    $scope.migrateToSuperGroup = function () {
      ErrorService.confirm({type: 'SUPERGROUP_MIGRATE'}).then(function () {
        MtpApiManager.invokeApi('messages.migrateChat', {
          chat_id: AppChatsManager.getChatInput($scope.chatID)
        }).then(onChatUpdated)
      })
    }

    $scope.kickFromGroup = function (userID) {
      MtpApiManager.invokeApi('messages.deleteChatUser', {
        chat_id: AppChatsManager.getChatInput($scope.chatID),
        user_id: AppUsersManager.getUserInput(userID)
      }).then(onChatUpdated)
    }

    $scope.flushHistory = function (justClear) {
      ErrorService.confirm({type: justClear ? 'HISTORY_FLUSH' : 'HISTORY_FLUSH_AND_DELETE'}).then(function () {
        AppMessagesManager.flushHistory(-$scope.chatID, justClear).then(function () {
          if (justClear) {
            $rootScope.$broadcast('history_focus', {peerString: $scope.chatFull.peerString})
          } else {
            $modalInstance.close()
            $location.url('/im')
          }
        })
      })
    }

    $scope.inviteViaLink = function () {
      var scope = $rootScope.$new()
      scope.chatID = $scope.chatID

      $modal.open({
        templateUrl: templateUrl('chat_invite_link_modal'),
        controller: 'ChatInviteLinkModalController',
        scope: scope,
        windowClass: 'md_simple_modal_window'
      })
    }

    $scope.photo = {}

    $scope.$watch('photo.file', onPhotoSelected)

    function onPhotoSelected (photo) {
      if (!photo || !photo.type || photo.type.indexOf('image') !== 0) {
        return
      }
      $scope.photo.updating = true
      MtpApiFileManager.uploadFile(photo).then(function (inputFile) {
        return MtpApiManager.invokeApi('messages.editChatPhoto', {
          chat_id: AppChatsManager.getChatInput($scope.chatID),
          photo: {
            _: 'inputChatUploadedPhoto',
            file: inputFile
          }
        }).then(onChatUpdated)
      })['finally'](function () {
        $scope.photo.updating = false
      })
    }

    $scope.deletePhoto = function () {
      $scope.photo.updating = true
      MtpApiManager.invokeApi('messages.editChatPhoto', {
        chat_id: AppChatsManager.getChatInput($scope.chatID),
        photo: {_: 'inputChatPhotoEmpty'}
      }).then(onChatUpdated)['finally'](function () {
        $scope.photo.updating = false
      })
    }

    $scope.editTitle = function () {
      var scope = $rootScope.$new()
      scope.chatID = $scope.chatID

      $modal.open({
        templateUrl: templateUrl('chat_edit_modal'),
        controller: 'ChatEditModalController',
        scope: scope,
        windowClass: 'md_simple_modal_window mobile_modal'
      })
    }

    $scope.hasRights = function (action) {
      return AppChatsManager.hasRights($scope.chatID, action)
    }
  })

  .controller('ChannelModalController', function ($scope, $timeout, $rootScope, $modal, AppUsersManager, AppChatsManager, AppProfileManager, AppPhotosManager, MtpApiManager, MtpApiFileManager, NotificationsManager, AppMessagesManager, AppPeersManager, ApiUpdatesManager, ContactsSelectService, ErrorService) {
    $scope.chatFull = AppChatsManager.wrapForFull($scope.chatID, {})
    $scope.settings = {notifications: true}
    $scope.isMegagroup = AppChatsManager.isMegagroup($scope.chatID)

    AppProfileManager.getChannelFull($scope.chatID, true).then(function (chatFull) {
      $scope.chatFull = AppChatsManager.wrapForFull($scope.chatID, chatFull)
      $scope.$broadcast('ui_height')

      NotificationsManager.getPeerMuted(-$scope.chatID).then(function (muted) {
        $scope.settings.notifications = !muted

        $scope.$watch('settings.notifications', function (newValue, oldValue) {
          if (newValue === oldValue) {
            return false
          }
          NotificationsManager.getPeerSettings(-$scope.chatID).then(function (settings) {
            if (newValue) {
              settings.mute_until = 0
            } else {
              settings.mute_until = 2000000000
            }
            NotificationsManager.updatePeerSettings(-$scope.chatID, settings)
          })
        })
      })

      if ($scope.chatFull.chat &&
        $scope.chatFull.chat.pFlags.creator &&
        $scope.chatFull.exported_invite &&
        $scope.chatFull.exported_invite._ == 'chatInviteEmpty') {
        AppProfileManager.getChatInviteLink($scope.chatID, true).then(function (link) {
          $scope.chatFull.exported_invite = {_: 'chatInviteExported', link: link}
        })
      }
    })

    AppProfileManager.getChannelParticipants($scope.chatID).then(function (participants) {
      $scope.participants = AppChatsManager.wrapParticipants($scope.chatID, participants)
      $scope.$broadcast('ui_height')
    })


    function onChatUpdated (updates) {
      ApiUpdatesManager.processUpdateMessage(updates)
      $rootScope.$broadcast('history_focus', {peerString: $scope.chatFull.peerString})
    }

    $scope.leaveChannel = function () {
      return ErrorService.confirm({type: $scope.isMegagroup ? 'MEGAGROUP_LEAVE' : 'CHANNEL_LEAVE'}).then(function () {
        MtpApiManager.invokeApi('channels.leaveChannel', {
          channel: AppChatsManager.getChannelInput($scope.chatID)
        }).then(onChatUpdated)
      })
    }

    $scope.deleteChannel = function () {
      return ErrorService.confirm({type: $scope.isMegagroup ? 'MEGAGROUP_DELETE' : 'CHANNEL_DELETE'}).then(function () {
        MtpApiManager.invokeApi('channels.deleteChannel', {
          channel: AppChatsManager.getChannelInput($scope.chatID)
        }).then(onChatUpdated)
      })
    }

    $scope.flushHistory = function () {
      ErrorService.confirm({type: 'HISTORY_FLUSH'}).then(function () {
        AppMessagesManager.flushHistory(-$scope.chatID).then(function () {
          $rootScope.$broadcast('history_focus', {peerString: $scope.chatFull.peerString})
        })
      })
    }

    $scope.joinChannel = function () {
      MtpApiManager.invokeApi('channels.joinChannel', {
        channel: AppChatsManager.getChannelInput($scope.chatID)
      }).then(onChatUpdated)
    }

    $scope.inviteToChannel = function () {
      var disabled = []
      angular.forEach(($scope.chatFull.participants || {}).participants || [], function (participant) {
        disabled.push(participant.user_id)
      })

      ContactsSelectService.selectContacts({disabled: disabled}).then(function (userIDs) {
        var inputUsers = []
        angular.forEach(userIDs, function (userID) {
          inputUsers.push(AppUsersManager.getUserInput(userID))
        })
        MtpApiManager.invokeApi('channels.inviteToChannel', {
          channel: AppChatsManager.getChannelInput($scope.chatID),
          users: inputUsers
        }).then(onChatUpdated)
      })
    }

    $scope.kickFromChannel = function (userID) {
      MtpApiManager.invokeApi('channels.kickFromChannel', {
        channel: AppChatsManager.getChannelInput($scope.chatID),
        user_id: AppUsersManager.getUserInput(userID),
        kicked: true
      }).then(onChatUpdated)
    }

    $scope.shareLink = function ($event) {
      var scope = $rootScope.$new()
      scope.chatID = $scope.chatID

      $modal.open({
        templateUrl: templateUrl('chat_invite_link_modal'),
        controller: 'ChatInviteLinkModalController',
        scope: scope,
        windowClass: 'md_simple_modal_window'
      })

      return cancelEvent($event)
    }

    $scope.photo = {}

    $scope.$watch('photo.file', onPhotoSelected)

    function onPhotoSelected (photo) {
      if (!photo || !photo.type || photo.type.indexOf('image') !== 0) {
        return
      }
      $scope.photo.updating = true
      MtpApiFileManager.uploadFile(photo).then(function (inputFile) {
        return MtpApiManager.invokeApi('channels.editPhoto', {
          channel: AppChatsManager.getChannelInput($scope.chatID),
          photo: {
            _: 'inputChatUploadedPhoto',
            file: inputFile
          }
        }).then(onChatUpdated)
      })['finally'](function () {
        $scope.photo.updating = false
      })
    }

    $scope.deletePhoto = function () {
      $scope.photo.updating = true
      MtpApiManager.invokeApi('channels.editPhoto', {
        channel: AppChatsManager.getChannelInput($scope.chatID),
        photo: {_: 'inputChatPhotoEmpty'}
      }).then(onChatUpdated)['finally'](function () {
        $scope.photo.updating = false
      })
    }

    $scope.editChannel = function () {
      var scope = $rootScope.$new()
      scope.chatID = $scope.chatID

      $modal.open({
        templateUrl: templateUrl($scope.isMegagroup ? 'megagroup_edit_modal' : 'channel_edit_modal'),
        controller: 'ChannelEditModalController',
        scope: scope,
        windowClass: 'md_simple_modal_window mobile_modal'
      })
    }

    $scope.goToHistory = function () {
      $rootScope.$broadcast('history_focus', {peerString: $scope.chatFull.peerString})
    }

    $scope.hasRights = function (action) {
      return AppChatsManager.hasRights($scope.chatID, action)
    }
  })

  .controller('SettingsModalController', function ($rootScope, $scope, $timeout, $modal, AppUsersManager, AppChatsManager, AppPhotosManager, MtpApiManager, Storage, NotificationsManager, MtpApiFileManager, PasswordManager, ApiUpdatesManager, ChangelogNotifyService, LayoutSwitchService, WebPushApiManager, AppRuntimeManager, ErrorService, _) {
    $scope.profile = {}
    $scope.photo = {}
    $scope.version = Config.App.version

    MtpApiManager.getUserID().then(function (id) {
      $scope.profile = AppUsersManager.getUser(id)
    })

    MtpApiManager.invokeApi('users.getFullUser', {
      id: {_: 'inputUserSelf'}
    }).then(function (userFullResult) {
      AppUsersManager.saveApiUser(userFullResult.user)
      if (userFullResult.profile_photo) {
        AppPhotosManager.savePhoto(userFullResult.profile_photo, {
          user_id: userFullResult.user.id
        })
      }
    })

    $scope.notify = {volume: 0.5}
    $scope.send = {}

    $scope.$watch('photo.file', onPhotoSelected)

    $scope.password = {_: 'account.noPassword'}
    updatePasswordState()
    var updatePasswordTimeout = false
    var stopped = false

    $scope.changePassword = function (options) {
      options = options || {}
      if (options.action == 'cancel_email') {
        return ErrorService.confirm({type: 'PASSWORD_ABORT_SETUP'}).then(function () {
          PasswordManager.updateSettings($scope.password, {email: ''}).then(updatePasswordState)
        })
      }
      var scope = $rootScope.$new()
      scope.password = $scope.password
      angular.extend(scope, options)
      var modal = $modal.open({
        scope: scope,
        templateUrl: templateUrl('password_update_modal'),
        controller: 'PasswordUpdateModalController',
        windowClass: 'md_simple_modal_window mobile_modal'
      })

      modal.result['finally'](updatePasswordState)
    }

    $scope.showSessions = function () {
      $modal.open({
        templateUrl: templateUrl('sessions_list_modal'),
        controller: 'SessionsListModalController',
        windowClass: 'md_simple_modal_window mobile_modal'
      })
    }

    function updatePasswordState () {
      $timeout.cancel(updatePasswordTimeout)
      updatePasswordTimeout = false
      PasswordManager.getState().then(function (result) {
        $scope.password = result
        if (result._ == 'account.noPassword' && result.email_unconfirmed_pattern && !stopped) {
          updatePasswordTimeout = $timeout(updatePasswordState, 5000)
        }
      })
    }

    $scope.$on('$destroy', function () {
      $timeout.cancel(updatePasswordTimeout)
      stopped = true
    })

    function onPhotoSelected (photo) {
      if (!photo || !photo.type || photo.type.indexOf('image') !== 0) {
        return
      }
      $scope.photo.updating = true
      MtpApiFileManager.uploadFile(photo).then(function (inputFile) {
        MtpApiManager.invokeApi('photos.uploadProfilePhoto', {
          file: inputFile,
          caption: '',
          geo_point: {_: 'inputGeoPointEmpty'}
        }).then(function (updateResult) {
          AppUsersManager.saveApiUsers(updateResult.users)
          MtpApiManager.getUserID().then(function (id) {
            AppPhotosManager.savePhoto(updateResult.photo, {
              user_id: id
            })
            ApiUpdatesManager.processUpdateMessage({
              _: 'updateShort',
              update: {
                _: 'updateUserPhoto',
                user_id: id,
                date: tsNow(true),
                photo: AppUsersManager.getUser(id).photo,
                previous: true
              }
            })
            $scope.photo = {}
          })
        })
      })['finally'](function () {
        delete $scope.photo.updating
      })
    }

    $scope.deletePhoto = function () {
      $scope.photo.updating = true
      MtpApiManager.invokeApi('photos.updateProfilePhoto', {
        id: {_: 'inputPhotoEmpty'}
      }).then(function (updateResult) {
        MtpApiManager.getUserID().then(function (id) {
          ApiUpdatesManager.processUpdateMessage({
            _: 'updateShort',
            update: {
              _: 'updateUserPhoto',
              user_id: id,
              date: tsNow(true),
              photo: updateResult,
              previous: true
            }
          })
          $scope.photo = {}
        })
      })['finally'](function () {
        delete $scope.photo.updating
      })
    }

    $scope.editProfile = function () {
      $modal.open({
        templateUrl: templateUrl('profile_edit_modal'),
        controller: 'ProfileEditModalController',
        windowClass: 'md_simple_modal_window mobile_modal'
      })
    }

    $scope.changeUsername = function () {
      $modal.open({
        templateUrl: templateUrl('username_edit_modal'),
        controller: 'UsernameEditModalController',
        windowClass: 'md_simple_modal_window mobile_modal'
      })
    }

    $scope.terminateSessions = function () {
      ErrorService.confirm({type: 'TERMINATE_SESSIONS'}).then(function () {
        MtpApiManager.invokeApi('auth.resetAuthorizations', {})
      })
    }

    Storage.get('notify_nodesktop', 'send_ctrlenter', 'notify_volume', 'notify_novibrate', 'notify_nopreview', 'notify_nopush').then(function (settings) {
      $scope.notify.desktop = !settings[0]
      $scope.send.enter = settings[1] ? '' : '1'

      $scope.notify.pushAvailable = WebPushApiManager.isAvailable
      $scope.notify.push = !settings[5]

      if (settings[2] !== false) {
        $scope.notify.volume = settings[2] > 0 && settings[2] <= 1.0 ? settings[2] : 0
      } else {
        $scope.notify.volume = 0.5
      }

      $scope.notify.canVibrate = NotificationsManager.getVibrateSupport()
      $scope.notify.vibrate = !settings[3]

      $scope.notify.preview = !settings[4]

      $scope.notify.volumeOf4 = function () {
        return 1 + Math.ceil(($scope.notify.volume - 0.1) / 0.33)
      }

      $scope.toggleSound = function () {
        if ($scope.notify.volume) {
          $scope.notify.volume = 0
        } else {
          $scope.notify.volume = 0.5
        }
      }

      var testSoundPromise
      $scope.$watch('notify.volume', function (newValue, oldValue) {
        if (newValue !== oldValue) {
          Storage.set({notify_volume: newValue})
          $rootScope.$broadcast('settings_changed')
          NotificationsManager.clear()

          if (testSoundPromise) {
            $timeout.cancel(testSoundPromise)
          }
          testSoundPromise = $timeout(function () {
            NotificationsManager.testSound(newValue)
          }, 500)
        }
      })

      $scope.toggleDesktop = function () {
        $scope.notify.desktop = !$scope.notify.desktop

        if ($scope.notify.desktop) {
          Storage.remove('notify_nodesktop')
        } else {
          Storage.set({notify_nodesktop: true})
        }
        $rootScope.$broadcast('settings_changed')
      }

      $scope.togglePush = function () {
        $scope.notify.push = !$scope.notify.push

        if ($scope.notify.push) {
          Storage.remove('notify_nopush')
        } else {
          Storage.set({notify_nopush: true})
        }
        $rootScope.$broadcast('settings_changed')
      }

      $scope.togglePreview = function () {
        $scope.notify.preview = !$scope.notify.preview

        if ($scope.notify.preview) {
          Storage.remove('notify_nopreview')
        } else {
          Storage.set({notify_nopreview: true})
        }
        $rootScope.$broadcast('settings_changed')
      }

      $scope.toggleVibrate = function () {
        $scope.notify.vibrate = !$scope.notify.vibrate

        if ($scope.notify.vibrate) {
          Storage.remove('notify_novibrate')
        } else {
          Storage.set({notify_novibrate: true})
        }
        $rootScope.$broadcast('settings_changed')
      }

      $scope.toggleCtrlEnter = function (newValue) {
        $scope.send.enter = newValue

        if ($scope.send.enter) {
          Storage.remove('send_ctrlenter')
        } else {
          Storage.set({send_ctrlenter: true})
        }
        $rootScope.$broadcast('settings_changed')
      }
    })

    $scope.openChangelog = function () {
      ChangelogNotifyService.showChangelog(false)
    }

    $scope.logOut = function () {
      ErrorService.confirm({type: 'LOGOUT'}).then(function () {
        MtpApiManager.logOut().then(function () {
          location.hash = '/login'
          AppRuntimeManager.reload()
        })
      })
    }

    $scope.switchBackToDesktop = Config.Mobile && !Config.Navigator.mobile
    $scope.switchToDesktop = function () {
      LayoutSwitchService.switchLayout(false)
    }
  })

  .controller('ChangelogModalController', function ($scope, $modal) {
    $scope.currentVersion = Config.App.version
    if (!$scope.lastVersion) {
      var versionParts = $scope.currentVersion.split('.')
      $scope.lastVersion = versionParts[0] + '.' + versionParts[1] + '.' + Math.max(0, versionParts[2] - 1)
    }

    $scope.changelogHidden = false
    $scope.changelogShown = false

    $scope.canShowVersion = function (curVersion) {
      if ($scope.changelogShown) {
        return true
      }

      var show = versionCompare(curVersion, $scope.lastVersion) >= 0
      if (!show) {
        $scope.changelogHidden = true
      }

      return show
    }

    $scope.showAllVersions = function () {
      $scope.changelogShown = true
      $scope.changelogHidden = false
      $scope.$emit('ui_height')
      $scope.$broadcast('ui_height')
    }

    $scope.changeUsername = function () {
      $modal.open({
        templateUrl: templateUrl('username_edit_modal'),
        controller: 'UsernameEditModalController',
        windowClass: 'md_simple_modal_window mobile_modal'
      })
    }
  })

  .controller('ProfileEditModalController', function ($scope, $modalInstance, AppUsersManager, MtpApiManager) {
    $scope.profile = {}
    $scope.error = {}

    MtpApiManager.getUserID().then(function (id) {
      var user = AppUsersManager.getUser(id)
      $scope.profile = {
        first_name: user.first_name,
        last_name: user.last_name
      }
    })

    $scope.updateProfile = function () {
      $scope.profile.updating = true
      var flags = (1 << 0) | (1 << 1)
      MtpApiManager.invokeApi('account.updateProfile', {
        flags: flags,
        first_name: $scope.profile.first_name || '',
        last_name: $scope.profile.last_name || ''
      }).then(function (user) {
        $scope.error = {}
        AppUsersManager.saveApiUser(user)
        $modalInstance.close()
      }, function (error) {
        switch (error.type) {
          case 'FIRSTNAME_INVALID':
            $scope.error = {field: 'first_name'}
            error.handled = true
            break

          case 'LASTNAME_INVALID':
            $scope.error = {field: 'last_name'}
            error.handled = true
            break

          case 'NAME_NOT_MODIFIED':
            error.handled = true
            $modalInstance.close()
            break
        }
      })['finally'](function () {
        delete $scope.profile.updating
      })
    }
  })

  .controller('UsernameEditModalController', function ($scope, $modalInstance, AppUsersManager, MtpApiManager) {
    $scope.profile = {}
    $scope.error = {}

    MtpApiManager.getUserID().then(function (id) {
      var user = AppUsersManager.getUser(id)
      $scope.profile = {
        username: user.username
      }
    })

    $scope.updateUsername = function () {
      $scope.profile.updating = true

      MtpApiManager.invokeApi('account.updateUsername', {
        username: $scope.profile.username || ''
      }).then(function (user) {
        $scope.checked = {}
        AppUsersManager.saveApiUser(user)
        $modalInstance.close()
      }, function (error) {
        switch (error.type) {
          case 'USERNAME_NOT_MODIFIED':
            error.handled = true
            $modalInstance.close()
            break
        }
      })['finally'](function () {
        delete $scope.profile.updating
      })
    }

    $scope.$watch('profile.username', function (newVal) {
      if (!newVal || !newVal.length) {
        $scope.checked = {}
        return
      }
      MtpApiManager.invokeApi('account.checkUsername', {
        username: newVal
      }).then(function (valid) {
        if ($scope.profile.username !== newVal) {
          return
        }
        if (valid) {
          $scope.checked = {success: true}
        } else {
          $scope.checked = {error: true}
        }
      }, function (error) {
        if ($scope.profile.username !== newVal) {
          return
        }
        switch (error.type) {
          case 'USERNAME_INVALID':
            $scope.checked = {error: true}
            error.handled = true
            break
        }
      })
    })
  })

  .controller('SessionsListModalController', function ($scope, $q, $timeout, _, MtpApiManager, ErrorService, $modalInstance) {
    $scope.slice = {limit: 20, limitDelta: 20}

    var updateSessionsTimeout = false
    var stopped = false

    function updateSessions () {
      $timeout.cancel(updateSessionsTimeout)
      MtpApiManager.invokeApi('account.getAuthorizations').then(function (result) {
        $scope.sessionsLoaded = true
        $scope.authorizations = result.authorizations

        var authorization
        for (var i = 0, len = $scope.authorizations.length; i < len; i++) {
          authorization = $scope.authorizations[i]
          authorization.current = (authorization.flags & 1) == 1
        }
        $scope.authorizations.sort(function (sA, sB) {
          if (sA.current) {
            return -1
          }
          if (sB.current) {
            return 1
          }
          return sB.date_active - sA.date_active
        })
        if (!stopped) {
          updateSessionsTimeout = $timeout(updateSessions, 5000)
        }
      })
    }

    $scope.terminateSession = function (hash) {
      ErrorService.confirm({type: 'TERMINATE_SESSION'}).then(function () {
        MtpApiManager.invokeApi('account.resetAuthorization', {hash: hash}).then(updateSessions)
      })
    }

    $scope.terminateAllSessions = function () {
      ErrorService.confirm({type: 'TERMINATE_SESSIONS'}).then(function () {
        MtpApiManager.invokeApi('auth.resetAuthorizations', {})
      })
    }

    updateSessions()

    $scope.$on('apiUpdate', function (e, update) {
      if (update._ == 'updateNewAuthorization') {
        updateSessions()
      }
    })

    $scope.$on('$destroy', function () {
      $timeout.cancel(updateSessionsTimeout)
      stopped = true
    })
  })

  .controller('PasswordUpdateModalController', function ($scope, $q, _, PasswordManager, MtpApiManager, ErrorService, $modalInstance) {
    $scope.passwordSettings = {}

    $scope.updatePassword = function () {
      delete $scope.passwordSettings.error_field

      var confirmPromise
      if ($scope.action == 'disable') {
        confirmPromise = $q.when()
      } else {
        if (!$scope.passwordSettings.new_password) {
          $scope.passwordSettings.error_field = 'new_password'
          $scope.$broadcast('new_password_focus')
          return false
        }
        if ($scope.passwordSettings.new_password != $scope.passwordSettings.confirm_password) {
          $scope.passwordSettings.error_field = 'confirm_password'
          $scope.$broadcast('confirm_password_focus')
          return false
        }
        confirmPromise = $scope.passwordSettings.email
          ? $q.when()
          : ErrorService.confirm({type: 'RECOVERY_EMAIL_EMPTY'})
      }

      $scope.passwordSettings.loading = true

      confirmPromise.then(function () {
        PasswordManager.updateSettings($scope.password, {
          cur_password: $scope.passwordSettings.cur_password || '',
          new_password: $scope.passwordSettings.new_password,
          email: $scope.passwordSettings.email,
          hint: $scope.passwordSettings.hint
        }).then(function (result) {
          delete $scope.passwordSettings.loading
          $modalInstance.close(true)
          if ($scope.action == 'disable') {
            ErrorService.alert(
              _('error_modal_password_disabled_title_raw'),
              _('error_modal_password_disabled_descripion_raw')
            )
          } else {
            ErrorService.alert(
              _('error_modal_password_success_title_raw'),
              _('error_modal_password_success_descripion_raw')
            )
          }
        }, function (error) {
          switch (error.type) {
            case 'PASSWORD_HASH_INVALID':
            case 'NEW_PASSWORD_BAD':
              $scope.passwordSettings.error_field = 'cur_password'
              error.handled = true
              $scope.$broadcast('cur_password_focus')
              break
            case 'NEW_PASSWORD_BAD':
              $scope.passwordSettings.error_field = 'new_password'
              error.handled = true
              break
            case 'EMAIL_INVALID':
              $scope.passwordSettings.error_field = 'email'
              error.handled = true
              break
            case 'EMAIL_UNCONFIRMED':
              ErrorService.alert(
                _('error_modal_email_unconfirmed_title_raw'),
                _('error_modal_email_unconfirmed_descripion_raw')
              )
              $modalInstance.close(true)
              error.handled = true
              break
          }
          delete $scope.passwordSettings.loading
        })
      })
    }

    switch ($scope.action) {
      case 'disable':
        $scope.passwordSettings.new_password = ''
        break
      case 'create':
        onContentLoaded(function () {
          $scope.$broadcast('new_password_focus')
        })
        break
    }

    $scope.$watch('passwordSettings.new_password', function (newValue) {
      var len = (newValue && newValue.length) || 0
      if (!len) {
        $scope.passwordSettings.hint = ''
      } else if (len <= 3) {
        $scope.passwordSettings.hint = '***'
      } else {
        $scope.passwordSettings.hint = newValue.charAt(0) + (new Array(len - 1)).join('*') + newValue.charAt(len - 1)
      }
      $scope.$broadcast('value_updated')
    })
  })

  .controller('PasswordRecoveryModalController', function ($scope, $q, _, PasswordManager, MtpApiManager, ErrorService, $modalInstance) {
    $scope.checkCode = function () {
      $scope.recovery.updating = true

      PasswordManager.recover($scope.recovery.code, $scope.options).then(function (result) {
        ErrorService.alert(
          _('error_modal_password_disabled_title_raw'),
          _('error_modal_password_disabled_descripion_raw')
        )
        $modalInstance.close(result)
      }, function (error) {
        delete $scope.recovery.updating
        switch (error.type) {
          case 'CODE_EMPTY':
          case 'CODE_INVALID':
            $scope.recovery.error_field = 'code'
            error.handled = true
            break

          case 'PASSWORD_EMPTY':
          case 'PASSWORD_RECOVERY_NA':
          case 'PASSWORD_RECOVERY_EXPIRED':
            $modalInstance.dismiss()
            error.handled = true
            break
        }
      })
    }
  })

  .controller('ContactsModalController', function ($scope, $rootScope, $timeout, $modal, $modalInstance, MtpApiManager, AppUsersManager, ErrorService) {
    $scope.contacts = []
    $scope.foundPeers = []
    $scope.search = {}
    $scope.slice = {limit: 20, limitDelta: 20}

    var jump = 0
    var i

    resetSelected()
    $scope.disabledContacts = {}

    if ($scope.disabled) {
      for (i = 0; i < $scope.disabled.length; i++) {
        $scope.disabledContacts[$scope.disabled[i]] = true
      }
    }

    if ($scope.selected) {
      for (i = 0; i < $scope.selected.length; i++) {
        if (!$scope.selectedContacts[$scope.selected[i]]) {
          $scope.selectedContacts[$scope.selected[i]] = true
          $scope.selectedCount++
        }
      }
    }

    function resetSelected () {
      $scope.selectedContacts = {}
      $scope.selectedCount = 0
    }

    function updateContacts (query) {
      var curJump = ++jump
      var doneIDs = []
      AppUsersManager.getContacts(query).then(function (contactsList) {
        if (curJump != jump) return
        $scope.contacts = []
        $scope.slice.limit = 20

        angular.forEach(contactsList, function (userID) {
          var contact = {
            userID: userID,
            user: AppUsersManager.getUser(userID)
          }
          doneIDs.push(userID)
          $scope.contacts.push(contact)
        })
        $scope.contactsEmpty = query ? false : !$scope.contacts.length
        $scope.$broadcast('contacts_change')
      })

      if (query && query.length >= 5) {
        $timeout(function () {
          if (curJump != jump) return
          MtpApiManager.invokeApi('contacts.search', {q: query, limit: 10}).then(function (result) {
            AppUsersManager.saveApiUsers(result.users)
            if (curJump != jump) return
            angular.forEach(result.results, function (contactFound) {
              var userID = contactFound.user_id
              if (doneIDs.indexOf(userID) != -1) return
              $scope.contacts.push({
                userID: userID,
                user: AppUsersManager.getUser(userID),
                peerString: AppUsersManager.getUserString(userID),
                found: true
              })
            })
          }, function (error) {
            if (error.code == 400) {
              error.handled = true
            }
          })
        }, 500)
      }
    }

    $scope.$watch('search.query', updateContacts)
    $scope.$on('contacts_update', function () {
      updateContacts(($scope.search && $scope.search.query) || '')
    })

    $scope.toggleEdit = function (enabled) {
      $scope.action = enabled ? 'edit' : ''
      $scope.multiSelect = enabled
      resetSelected()
    }

    $scope.contactSelect = function (userID) {
      if ($scope.disabledContacts[userID]) {
        return false
      }
      if (!$scope.multiSelect) {
        return $modalInstance.close(userID)
      }
      if ($scope.selectedContacts[userID]) {
        delete $scope.selectedContacts[userID]
        $scope.selectedCount--
      } else {
        $scope.selectedContacts[userID] = true
        $scope.selectedCount++
      }
    }

    $scope.submitSelected = function () {
      if ($scope.selectedCount > 0) {
        var selectedUserIDs = []
        angular.forEach($scope.selectedContacts, function (t, userID) {
          selectedUserIDs.push(userID)
        })
        return $modalInstance.close(selectedUserIDs)
      }
    }

    $scope.deleteSelected = function () {
      if ($scope.selectedCount > 0) {
        var selectedUserIDs = []
        angular.forEach($scope.selectedContacts, function (t, userID) {
          selectedUserIDs.push(userID)
        })
        AppUsersManager.deleteContacts(selectedUserIDs).then(function () {
          $scope.toggleEdit(false)
        })
      }
    }

    $scope.importContact = function () {
      AppUsersManager.openImportContact().then(function (foundContact) {
        if (foundContact) {
          $rootScope.$broadcast('history_focus', {
            peerString: AppUsersManager.getUserString(foundContact)
          })
        }
      })
    }
  })

  .controller('PeerSelectController', function ($scope, $modalInstance, $q, AppPeersManager, ErrorService) {
    $scope.selectedPeers = {}
    $scope.selectedPeerIDs = []
    $scope.selectedCount = 0

    if ($scope.shareLinkPromise) {
      $scope.shareLink = {loading: true}
      $scope.shareLinkPromise.then(function (url) {
        $scope.shareLink = {url: url}
      }, function () {
        delete $scope.shareLink
      })
    }

    $scope.dialogSelect = function (peerString) {
      var peerID
      if (!$scope.multiSelect) {
        var promise
        if ($scope.confirm_type) {
          peerID = AppPeersManager.getPeerID(peerString)
          var peerData = AppPeersManager.getPeer(peerID)
          promise = ErrorService.confirm({
            type: $scope.confirm_type,
            peer_id: peerID,
            peer_data: peerData
          })
        } else {
          promise = $q.when()
        }
        promise.then(function () {
          $modalInstance.close(peerString)
        })
        return
      }

      peerID = AppPeersManager.getPeerID(peerString)
      if ($scope.selectedPeers[peerID]) {
        delete $scope.selectedPeers[peerID]
        $scope.selectedCount--
        var pos = $scope.selectedPeerIDs.indexOf(peerID)
        if (pos >= 0) {
          $scope.selectedPeerIDs.splice(pos, 1)
        }
      } else {
        $scope.selectedPeers[peerID] = AppPeersManager.getPeer(peerID)
        $scope.selectedCount++
        $scope.selectedPeerIDs.unshift(peerID)
      }
    }

    $scope.submitSelected = function () {
      if ($scope.selectedCount > 0) {
        var selectedPeerStrings = []
        angular.forEach($scope.selectedPeers, function (t, peerID) {
          selectedPeerStrings.push(AppPeersManager.getPeerString(peerID))
        })
        return $modalInstance.close(selectedPeerStrings)
      }
    }

    $scope.toggleSearch = function () {
      $scope.$broadcast('dialogs_search_toggle')
    }
  })

  .controller('ChatCreateModalController', function ($scope, $modalInstance, $rootScope, MtpApiManager, AppUsersManager, AppChatsManager, ApiUpdatesManager) {
    $scope.group = {name: ''}

    $scope.createGroup = function () {
      if (!$scope.group.name) {
        return
      }
      $scope.group.creating = true
      var inputUsers = []
      angular.forEach($scope.userIDs, function (userID) {
        inputUsers.push(AppUsersManager.getUserInput(userID))
      })
      return MtpApiManager.invokeApi('messages.createChat', {
        title: $scope.group.name,
        users: inputUsers
      }).then(function (updates) {
        ApiUpdatesManager.processUpdateMessage(updates)

        if (updates.updates && updates.updates.length) {
          for (var i = 0, len = updates.updates.length, update; i < len; i++) {
            update = updates.updates[i]
            if (update._ == 'updateNewMessage') {
              $rootScope.$broadcast('history_focus', {peerString: AppChatsManager.getChatString(update.message.to_id.chat_id)
              })
              break
            }
          }
          $modalInstance.close()
        }
      })['finally'](function () {
        delete $scope.group.creating
      })
    }
  })

  .controller('ChatEditModalController', function ($scope, $modalInstance, $rootScope, MtpApiManager, AppUsersManager, AppChatsManager, ApiUpdatesManager) {
    var chat = AppChatsManager.getChat($scope.chatID)
    $scope.group = {name: chat.title}

    $scope.updateGroup = function () {
      if (!$scope.group.name) {
        return
      }
      if ($scope.group.name == chat.title) {
        return $modalInstance.close()
      }

      $scope.group.updating = true

      var apiPromise
      if (AppChatsManager.isChannel($scope.chatID)) {
        apiPromise = MtpApiManager.invokeApi('channels.editTitle', {
          channel: AppChatsManager.getChannelInput($scope.chatID),
          title: $scope.group.name
        })
      } else {
        apiPromise = MtpApiManager.invokeApi('messages.editChatTitle', {
          chat_id: AppChatsManager.getChatInput($scope.chatID),
          title: $scope.group.name
        })
      }

      return apiPromise.then(function (updates) {
        ApiUpdatesManager.processUpdateMessage(updates)
        var peerString = AppChatsManager.getChatString($scope.chatID)
        $rootScope.$broadcast('history_focus', {peerString: peerString})
      })['finally'](function () {
        delete $scope.group.updating
      })
    }
  })

  .controller('ChannelEditModalController', function ($q, $scope, $modalInstance, $rootScope, MtpApiManager, AppUsersManager, AppChatsManager, AppProfileManager, ApiUpdatesManager) {
    var channel = AppChatsManager.getChat($scope.chatID)
    var initial = {title: channel.title}
    $scope.channel = {title: channel.title}

    AppProfileManager.getChannelFull($scope.chatID).then(function (channelFull) {
      initial.about = channelFull.about
      $scope.channel.about = channelFull.about
    })

    $scope.updateChannel = function () {
      if (!$scope.channel.title.length) {
        return
      }
      var promises = []
      if ($scope.channel.title != initial.title) {
        promises.push(editTitle())
      }
      if ($scope.channel.about != initial.about) {
        promises.push(editAbout())
      }

      $scope.channel.updating = true
      return $q.all(promises).then(function () {
        var peerString = AppChatsManager.getChatString($scope.chatID)
        $rootScope.$broadcast('history_focus', {peerString: peerString})
      })['finally'](function () {
        delete $scope.channel.updating
      })
    }

    function editTitle () {
      return MtpApiManager.invokeApi('channels.editTitle', {
        channel: AppChatsManager.getChannelInput($scope.chatID),
        title: $scope.channel.title
      }).then(function (updates) {
        ApiUpdatesManager.processUpdateMessage(updates)
      })
    }

    function editAbout () {
      return MtpApiManager.invokeApi('channels.editAbout', {
        channel: AppChatsManager.getChannelInput($scope.chatID),
        about: $scope.channel.about
      })
    }
  })

  .controller('ChatInviteLinkModalController', function (_, $scope, $timeout, $modalInstance, AppChatsManager, AppProfileManager, ErrorService) {
    $scope.exportedInvite = {link: _('group_invite_link_loading_raw')}

    var isChannel = AppChatsManager.isChannel($scope.chatID)
    var isMegagroup = AppChatsManager.isMegagroup($scope.chatID)

    function selectLink () {
      $timeout(function () {
        $scope.$broadcast('ui_invite_select')
      }, 100)
    }

    function updateLink (force) {
      var chat = AppChatsManager.getChat($scope.chatID)
      if (chat.username) {
        $scope.exportedInvite = {link: 'https://t.me/' + chat.username, short: true}
        selectLink()
        return
      }
      if (force) {
        $scope.exportedInvite.revoking = true
      }
      AppProfileManager.getChatInviteLink($scope.chatID, force).then(function (link) {
        $scope.exportedInvite = {link: link, canRevoke: true}
        selectLink()
      })['finally'](function () {
        delete $scope.exportedInvite.revoking
      })
    }

    $scope.revokeLink = function () {
      ErrorService.confirm({
        type: isChannel && !isMegagroup ? 'REVOKE_CHANNEL_INVITE_LINK' : 'REVOKE_GROUP_INVITE_LINK'
      }).then(function () {
        updateLink(true)
      })
    }

    updateLink()
  })

  .controller('ImportContactModalController', function ($scope, $modalInstance, $rootScope, AppUsersManager, ErrorService, PhonebookContactsService) {
    if ($scope.importContact === undefined) {
      $scope.importContact = {}
    }

    $scope.phonebookAvailable = PhonebookContactsService.isAvailable()

    $scope.doImport = function () {
      if ($scope.importContact && $scope.importContact.phone) {
        $scope.progress = {enabled: true}
        AppUsersManager.importContact(
          $scope.importContact.phone,
          $scope.importContact.first_name || '',
          $scope.importContact.last_name || ''
        ).then(function (foundUserID) {
          if (!foundUserID) {
            ErrorService.show({
              error: {code: 404, type: 'USER_NOT_USING_TELEGRAM'}
            })
          }
          $modalInstance.close(foundUserID)
        })['finally'](function () {
          delete $scope.progress.enabled
        })
      }
    }

    $scope.importPhonebook = function () {
      PhonebookContactsService.openPhonebookImport().result.then(function (foundContacts) {
        if (foundContacts) {
          $modalInstance.close(foundContacts[0])
        } else {
          $modalInstance.dismiss()
        }
      })
    }
  })

  .controller('CountrySelectModalController', function ($scope, $modalInstance, $rootScope, _) {
    $scope.search = {}
    $scope.slice = {limit: 20, limitDelta: 20}

    var searchIndex = SearchIndexManager.createIndex()

    for (var i = 0; i < Config.CountryCodes.length; i++) {
      var searchString = Config.CountryCodes[i][0]
      searchString += ' ' + _(Config.CountryCodes[i][1] + '_raw')
      searchString += ' ' + Config.CountryCodes[i].slice(2).join(' ')
      SearchIndexManager.indexObject(i, searchString, searchIndex)
    }

    $scope.$watch('search.query', function (newValue) {
      var filtered = false
      var results = {}

      if (angular.isString(newValue) && newValue.length) {
        filtered = true
        results = SearchIndexManager.search(newValue, searchIndex)
      }

      $scope.countries = []
      $scope.slice.limit = 20

      var j
      for (var i = 0; i < Config.CountryCodes.length; i++) {
        if (!filtered || results[i]) {
          for (j = 2; j < Config.CountryCodes[i].length; j++) {
            $scope.countries.push({name: _(Config.CountryCodes[i][1] + '_raw'), code: Config.CountryCodes[i][j]})
          }
        }
      }
      if (String.prototype.localeCompare) {
        $scope.countries.sort(function (a, b) {
          return a.name.localeCompare(b.name)
        })
      }
    })
  })

  .controller('PhonebookModalController', function ($scope, $modalInstance, $rootScope, AppUsersManager, PhonebookContactsService, ErrorService) {
    $scope.search = {}
    $scope.phonebook = []
    $scope.selectedContacts = {}
    $scope.selectedCount = 0
    $scope.slice = {limit: 20, limitDelta: 20}
    $scope.progress = {enabled: false}
    $scope.multiSelect = true

    var searchIndex = SearchIndexManager.createIndex()
    var phonebookReady = false

    PhonebookContactsService.getPhonebookContacts().then(function (phonebook) {
      for (var i = 0; i < phonebook.length; i++) {
        SearchIndexManager.indexObject(i, phonebook[i].first_name + ' ' + phonebook[i].last_name + ' ' + phonebook[i].phones.join(' '), searchIndex)
      }
      $scope.phonebook = phonebook
      $scope.toggleSelection(true)
      phonebookReady = true
      updateList()
    }, function (error) {
      ErrorService.show({
        error: {code: 403, type: 'PHONEBOOK_GET_CONTACTS_FAILED', originalError: error}
      })
    })

    function updateList () {
      var filtered = false
      var results = {}

      if (angular.isString($scope.search.query) && $scope.search.query.length) {
        filtered = true
        results = SearchIndexManager.search($scope.search.query, searchIndex)

        $scope.contacts = []
        delete $scope.contactsEmpty
        for (var i = 0; i < $scope.phonebook.length; i++) {
          if (!filtered || results[i]) {
            $scope.contacts.push($scope.phonebook[i])
          }
        }
      } else {
        $scope.contacts = $scope.phonebook
        $scope.contactsEmpty = !$scope.contacts.length
      }

      $scope.slice.limit = 20
    }

    $scope.$watch('search.query', function (newValue) {
      if (phonebookReady) {
        updateList()
      }
    })

    $scope.contactSelect = function (i) {
      if (!$scope.multiSelect) {
        return $modalInstance.close($scope.phonebook[i])
      }
      if ($scope.selectedContacts[i]) {
        delete $scope.selectedContacts[i]
        $scope.selectedCount--
      } else {
        $scope.selectedContacts[i] = true
        $scope.selectedCount++
      }
    }

    $scope.toggleSelection = function (fill) {
      if (!$scope.selectedCount || fill) {
        $scope.selectedCount = $scope.phonebook.length
        for (var i = 0; i < $scope.phonebook.length; i++) {
          $scope.selectedContacts[i] = true
        }
      } else {
        $scope.selectedCount = 0
        $scope.selectedContacts = {}
      }
    }

    $scope.submitSelected = function () {
      if ($scope.selectedCount <= 0) {
        $modalInstance.dismiss()
      }

      var selectedContacts = []
      angular.forEach($scope.selectedContacts, function (t, i) {
        selectedContacts.push($scope.phonebook[i])
      })

      ErrorService.confirm({
        type: 'CONTACTS_IMPORT_PERFORM'
      }).then(function () {
        $scope.progress.enabled = true
        AppUsersManager.importContacts(selectedContacts).then(function (foundContacts) {
          if (!foundContacts.length) {
            ErrorService.show({
              error: {code: 404, type: 'USERS_NOT_USING_TELEGRAM'}
            })
          }
          $modalInstance.close(foundContacts)
        })['finally'](function () {
          $scope.progress.enabled = false
        })
      })
    }
  })

  .controller('StickersetModalController', function ($scope, $rootScope, $modalInstance, MtpApiManager, RichTextProcessor, AppStickersManager, AppDocsManager, AppMessagesManager, LocationParamsService) {
    $scope.slice = {limit: 20, limitDelta: 20}

    var fullSet

    AppStickersManager.getStickerset($scope.inputStickerset).then(function (result) {
      $scope.$broadcast('ui_height')
      $scope.stickersetLoaded = true
      fullSet = result
      $scope.stickerset = result.set
      $scope.stickersetInstalled = result.set.pFlags.installed == true
      $scope.documents = result.documents

      $scope.stickerEmojis = {}
      $scope.stickerDimensions = {}
      angular.forEach($scope.documents, function (doc) {
        $scope.stickerEmojis[doc.id] = RichTextProcessor.wrapRichText(doc.stickerEmojiRaw, {
          noLinks: true,
          noLinebreaks: true,
          emojiIconSize: 26
        })
        var dim = calcImageInBox(doc.w, doc.h, 192, 192)
        $scope.stickerDimensions[doc.id] = {width: dim.w, height: dim.h}
      })
    })

    $scope.toggleInstalled = function (installed) {
      AppStickersManager.installStickerset(fullSet, !installed).then(function () {
        $scope.stickersetInstalled = installed
      })
    }

    $scope.chooseSticker = function (docID) {
      var doc = AppDocsManager.getDoc(docID)
      if (!doc.id || !doc.access_hash || !$rootScope.selectedPeerID) {
        return
      }
      var inputMedia = {
        _: 'inputMediaDocument',
        id: {
          _: 'inputDocument',
          id: doc.id,
          access_hash: doc.access_hash
        }
      }
      AppMessagesManager.sendOther($rootScope.selectedPeerID, inputMedia)
      $modalInstance.close(doc.id)
    }

    $scope.share = function () {
      LocationParamsService.shareUrl('https://t.me/addstickers/' + $scope.stickerset.short_name, $scope.stickerset.title)
    }
  })