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nodebb/src/messaging.js

101 lines
2.2 KiB
JavaScript

var db = require('./database'),
async = require('async'),
user = require('./user');
(function(Messaging) {
function sortUids(fromuid, touid) {
var uids = [fromuid, touid];
uids.sort();
return uids;
}
Messaging.addMessage = function(fromuid, touid, content, callback) {
var uids = sortUids(fromuid, touid);
db.incrObjectField('global', 'nextMid', function(err, mid) {
if (err) {
return callback(err, null);
}
var message = {
content: content,
timestamp: Date.now(),
fromuid: fromuid,
touid: touid
};
db.setObject('message:' + mid, message);
db.listAppend('messages:' + uids[0] + ':' + uids[1], mid);
Messaging.updateChatTime(fromuid, touid);
Messaging.updateChatTime(touid, fromuid);
callback(null, message);
});
}
Messaging.getMessages = function(fromuid, touid, callback) {
var uids = sortUids(fromuid, touid);
db.getListRange('messages:' + uids[0] + ':' + uids[1], 0, -1, function(err, mids) {
if (err) {
return callback(err, null);
}
if (!mids || !mids.length) {
return callback(null, []);
}
user.getUserField(touid, 'username', function(err, tousername) {
var messages = [];
function getMessage(mid, next) {
db.getObject('message:' + mid, function(err, message) {
if (err) {
return next(err);
}
if (message.fromuid === fromuid) {
message.content = 'You : ' + message.content;
} else {
message.content = tousername + ' : ' + message.content;
}
messages.push(message);
next(null);
});
}
async.eachSeries(mids, getMessage, function(err) {
if (err) {
return callback(err, null);
}
callback(null, messages);
});
});
});
}
Messaging.updateChatTime = function(uid, toUid, callback) {
db.sortedSetAdd('uid:' + uid + ':chats', Date.now(), toUid, function(err) {
if (callback) {
callback(err);
}
});
};
Messaging.getRecentChats = function(uid, callback) {
db.getSortedSetRevRange('uid:' + uid + ':chats', 0, 9, function(err, uids) {
if (!err) {
user.getMultipleUserFields(uids, ['username', 'picture', 'uid'], callback);
} else {
callback(err);
}
});
};
}(exports));