// twister_directmsg.js
// 2013 Miguel Freitas
//
// Handle direct messages modal

function requestDMsnippetList(dmThreadList) {
    var followList = [];
    for( var i = 0; i < followingUsers.length; i++ ) {
        followList.push({username:followingUsers[i]});
    }
    for( var i = 0; i < groupChatAliases.length; i++ ) {
        followList.push({username:groupChatAliases[i]});
    }

    twisterRpc("getdirectmsgs", [defaultScreenName, 1, followList],
           function(req, ret) {processDMsnippet(ret, dmThreadList);}, dmThreadList,
           function(req, ret) {console.log("ajax error:" + ret);}, null);
}

function processDMsnippet(dmUsers, dmThreadList) {
    dmThreadList.empty();

    for( var u in dmUsers ) {
        if( dmUsers.hasOwnProperty(u) ) {
            // convert snipped to html and add it to date-sorted list
            var dmItem = dmDataToSnippetItem(dmUsers[u][0], u);
            var timeDmItem = parseInt(dmItem.attr("data-time"));
            var existingItems = dmThreadList.children();
            var j = 0;
            for( j = 0; j < existingItems.length; j++) {
                var streamItem = existingItems.eq(j);
                var timeExisting = streamItem.attr("data-time");
                if( timeExisting == undefined ||
                    timeDmItem > parseInt(timeExisting) ) {
                    // this post in stream is older, so post must be inserted above
                    streamItem.before(dmItem);
                    break;
                }
            }
            if( j == existingItems.length ) {
                dmThreadList.append(dmItem);
            }
        }
    }
    $.MAL.dmThreadListLoaded();
}

function requestDmConversationModal(dmConvo,dm_screenname) {
    if( dmConvo.parents(".modal-wrapper").css("display") == 'none' )
        return;

    requestDmConversation(dmConvo,dm_screenname);
    setTimeout( function() {requestDmConversationModal(dmConvo,dm_screenname);}, 1000);
}

function requestDmConversation(dmConvo,dm_screenname) {
    var since_id = undefined;

    var oldItems = dmConvo.children();
    if( oldItems.length ) {
        since_id = parseInt(oldItems.eq(oldItems.length-1).attr("data-id"));
    }

    var userDmReq = [{username:dm_screenname}];
    if( since_id != undefined ) userDmReq[0].since_id = since_id;
    var count = 100;
    twisterRpc("getdirectmsgs", [defaultScreenName,count,userDmReq],
               function(args, ret) { processDmConversation(args.dmConvo, args.dmUser, ret); },
                                   {dmConvo:dmConvo,dmUser:dm_screenname},
               function(arg, ret) { var msg = ("message" in ret) ? ret.message : ret;
                                    alert(polyglot.t("ajax_error", { error: msg })); }, null);
}

function processDmConversation(dmConvo, dm_screenname, dmData) {
    var lastId = undefined;
    if(dm_screenname in dmData) {
        var dmList = dmData[dm_screenname];
        if( dmList.length ) {
            for( var i = 0; i < dmList.length; i++) {;
                var dmItem = dmDataToConversationItem(dmList[i],defaultScreenName,dm_screenname);
                dmItem.attr("data-id",dmList[i].id);
                dmConvo.append(dmItem);
                lastId = dmList[i].id;
            }
            $.MAL.dmChatListLoaded(dmConvo);
        }
    }
    if( lastId != undefined ) {
        resetNewDMsCountForUser(dm_screenname, lastId);
    }
}

function directMsgSubmit(e)
{
    e.stopPropagation();
    e.preventDefault();
    var $this = $( this );
    var $replyText = $this.closest(".post-area-new").find("textarea");

    var $dmConversation = $(".directMessages");

    newDirectMsg($replyText.val(), $dmConversation.attr("data-dm-screen-name"));

    $replyText.val("");
}

function newDirectMsg(msg,  dm_screenname) {
    if( lastPostId != undefined ) {
        var paramsOrig = [defaultScreenName, lastPostId + 1, dm_screenname, msg]
        var paramsOpt = paramsOrig
        var copySelf = ($.Options.dmCopySelf.val === 'enable')
        if( copySelf && dm_screenname[0] !== '*' ) {
            paramsOpt = paramsOrig.concat(true)
        }

        twisterRpc("newdirectmsg", paramsOpt,
                   function(arg, ret) {
                        incLastPostId();
                        if( arg.copySelf ) incLastPostId();
                    }, {copySelf:copySelf},
                   function(arg, ret) {
                        // fallback for older twisterd (error: no copy_self parameter)
                        twisterRpc("newdirectmsg", arg.paramsOrig,
                                   function(arg, ret) { incLastPostId(); }, null,
                                   function(arg, ret) {
                                       var msg = ("message" in ret) ? ret.message : ret;
                                       alert("Ajax error: " + msg);
                                   }, null);
                    }, {paramsOrig:paramsOrig}
        );
    } else {
        alert(polyglot.t("Internal error: lastPostId unknown (following yourself may fix!)"));
    }
}

// dispara o modal de direct messages
function directMessagesPopup() {
    if (!defaultScreenName) {
      alert(polyglot.t('You have to log in to use direct messages.'));
      return;
    }

    modal = openModal({
        classAdd: 'directMessages',
        content: $('.direct-messages-template').children().clone(),
        title: polyglot.t('Direct Messages')
    });

    requestDMsnippetList(modal.content.find('.direct-messages-list'));

    modal.self.find('.mark-all-as-read')
        .css('display', 'inline')
        .attr('title', polyglot.t('Mark all as read'))
        .on('click', function() {
            for (var k in _newDMsPerUser) {
                _newDMsPerUser[k] = 0;
            }
            saveDMsToStorage();
            $.MAL.updateNewDMsUI(getNewDMsCount());
        })
    ;
}

function openDmWithUserModal(dm_screenname) {
    if (!defaultScreenName) {
        alert(polyglot.t('You have to log in to use direct messages.'));
        return;
    }

    modal = openModal({
        classAdd: 'directMessages',
        content: $('.messages-thread-template').children().clone(),
        title: polyglot.t('direct_messages_with', {username: '<span>' + dm_screenname + '</span>'})
    });

    modal.self.attr('data-dm-screen-name', dm_screenname);

    if (dm_screenname.length && dm_screenname[0] === '*')
        getGroupChatName(dm_screenname, modal.self.find('.modal-header h3 span'));
    else
        getFullname(dm_screenname, modal.self.find('.modal-header h3 span'));

    requestDmConversationModal(modal.self.find('.direct-messages-thread').empty(), dm_screenname);

    $('.dm-form-template').children().clone()
        .addClass('open').appendTo(modal.content).fadeIn('fast');
}


function initInterfaceDirectMsg() {

    $( ".direct-messages" ).attr("href","#directmessages");
    $( ".userMenu-messages a" ).attr("href","#directmessages");

    $( "#dm-snippet-template" ).bind( "click", function(){
        window.location.hash='#directmessages?user='+$(this).attr("data-dm-screen-name");
    } );

    $( ".dm-submit").click( directMsgSubmit );
    $( ".direct-messages-with-user" ).bind( "click", function() {
        window.location.hash='#directmessages?user='+$(this).closest("[data-screen-name]").attr("data-screen-name");
    } );

}