/*!
 * Webogram v0.4.6 - 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';

/* Filters */

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

  .filter('userName', function(_) {
    return function (user) {
      if (!user || !user.first_name && !user.last_name) {
        return _('user_name_deleted');
      }
      return user.first_name + ' ' + user.last_name;
    }
  })

  .filter('userFirstName', function(_) {
    return function (user) {
      if (!user || !user.first_name && !user.last_name) {
        return _('user_first_name_deleted');
      }
      return user.first_name || user.last_name;
    }
  })

  .filter('userStatus', function($filter, _) {
    var relativeTimeFilter = $filter('relativeTime');
    return function (user) {
      var statusType = user && user.status && user.status._ || 'userStatusEmpty';
      switch (statusType) {
        case 'userStatusOnline':
          return _('user_status_online');

        case 'userStatusOffline':
          return _('user_status_last_seen', relativeTimeFilter(user.status.was_online));

        case 'userStatusRecently':
          return _('user_status_recently');

        case 'userStatusLastWeek':
          return _('user_status_last_week');

        case 'userStatusLastMonth':
          return _('user_status_last_month');

        case 'userStatusEmpty':
        default:
          return _('user_status_long_ago');
      }
    }
  })

  .filter('chatTitle', function(_) {
    return function (chat) {
      if (!chat || !chat.title) {
        return _('chat_title_deleted');
      }
      return chat.title;
    }
  })

  .filter('dateOrTime', function($filter) {
    var dateFilter = $filter('date');

    return function (timestamp, extended) {

      var ticks = timestamp * 1000,
          diff = Math.abs(tsNow() - ticks),
          format = 'shortTime';

      if (diff > 518400000) { // 6 days
        format = extended ? 'mediumDate' : 'shortDate';
      }
      else if (diff > 43200000) { // 12 hours
        format = extended ? 'EEEE' : 'EEE';
      }

      return dateFilter(ticks, format);
    }
  })

  .filter('time', function($filter) {
    var cachedDates = {},
        dateFilter = $filter('date'),
        format = Config.Mobile ? 'shortTime' : 'mediumTime';

    return function (timestamp) {
      if (cachedDates[timestamp]) {
        return cachedDates[timestamp];
      }

      return cachedDates[timestamp] = dateFilter(timestamp * 1000, format);
    }
  })

  .filter('myDate', function($filter) {
    var cachedDates = {},
        dateFilter = $filter('date');

    return function (timestamp) {
      if (cachedDates[timestamp]) {
        return cachedDates[timestamp];
      }

      return cachedDates[timestamp] = dateFilter(timestamp * 1000, 'fullDate');
    }
  })

  .filter('duration', [function() {
    return function (duration) {
      duration = parseInt(duration);
      if (isNaN(duration)) {
        duration = 0;
      }
      var secs = duration % 60,
          mins = Math.floor((duration - secs) / 60.0);

      if (secs < 10) {
        secs = '0' + secs;
      }

      return mins + ':' + secs;
    }
  }])

  .filter('durationRemains', function($filter) {
    var durationFilter = $filter('duration');

    return function (done, total) {
      return '-' + durationFilter(total - done);
    }
  })

  .filter('phoneNumber', [function() {
    return function (phoneRaw) {
      var nbsp = ' ';
      phoneRaw = (phoneRaw || '').replace(/\D/g, '');
      if (phoneRaw.charAt(0) == '7' && phoneRaw.length == 11) {
        return '+' + phoneRaw.charAt(0) + nbsp + '(' + phoneRaw.substr(1, 3) + ')' + nbsp + phoneRaw.substr(4, 3) + '-' + phoneRaw.substr(7, 2) + '-' + phoneRaw.substr(9, 2);
      }
      return '+' + phoneRaw;
    }
  }])

  .filter('formatSize', [function () {
    return function (size, progressing) {
      if (!size) {
        return '0';
      }
      else if (size < 1024) {
        return size + ' b';
      }
      else if (size < 1048576) {
        return Math.round(size / 1024) + ' Kb';
      }
      var mbs = size / 1048576;
      if (progressing) {
        mbs = mbs.toFixed(1);
      } else {
        mbs = (Math.round(mbs * 10) / 10);
      }
      return mbs + ' MB';
    }
  }])

  .filter('formatSizeProgress', function ($filter, _) {
    var formatSizeFilter = $filter('formatSize');
    return function (progress) {
      var done = formatSizeFilter(progress.done, true),
          doneParts = done.split(' '),
          total = formatSizeFilter(progress.total),
          totalParts = total.split(' ');

      if (totalParts[1] === doneParts[1]) {
        return _('format_size_progress_mulitple', {done: doneParts[0], total: totalParts[0], parts: (doneParts[1] || '')});
      }
      return _('format_size_progress', {done: done, total: total});
    }
  })

  .filter('nl2br', [function () {
    return function (text) {
      return text.replace(/\n/g, '<br/>');
    }
  }])

  .filter('richText', function ($filter) {
    var linkyFilter = $filter('linky');
    return function (text) {
      return linkyFilter(text, '_blank').replace(/\n|&#10;/g, '<br/>');
    }
  })

  .filter('relativeTime', function($filter, _) {
    var langMinutesPluralize = _.pluralize('relative_time_pluralize_minutes_ago'),
        langHoursPluralize = _.pluralize('relative_time_pluralize_hours_ago'),
        dateOrTimeFilter = $filter('dateOrTime');

    return function (timestamp) {
      var ticks = timestamp * 1000,
          diff = Math.abs(tsNow() - ticks);

      if (diff < 60000) {
        return _('relative_time_just_now');
      }
      if (diff < 3600000) {
        var minutes = Math.floor(diff / 60000);
        return langMinutesPluralize(minutes);
      }
      if (diff < 86400000) {
        var hours = Math.floor(diff / 3600000);
        return langHoursPluralize(hours);
      }
      return dateOrTimeFilter(timestamp, true);
    }
  })