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|
'use strict';
/**
* Module dependencies
*/
import * as mongo from 'mongodb';
import Message from '../../models/messaging-message';
import User from '../../models/user';
import serialize from '../../serializers/messaging-message';
import publishUserStream from '../../event';
import { publishMessagingStream } from '../../event';
/**
* Get messages
*
* @param {Object} params
* @param {Object} user
* @return {Promise<object>}
*/
module.exports = (params, user) =>
new Promise(async (res, rej) =>
{
// Get 'user_id' parameter
let recipient = params.user_id;
if (recipient !== undefined && recipient !== null) {
recipient = await User.findOne({
_id: new mongo.ObjectID(recipient)
});
if (recipient === null) {
return rej('user not found');
}
} else {
return rej('user_id is required');
}
// Get 'mark_as_read' parameter
let markAsRead = params.mark_as_read;
if (markAsRead == null) {
markAsRead = true;
} else {
markAsRead = markAsRead === 'true';
}
// Get 'limit' parameter
let limit = params.limit;
if (limit !== undefined && limit !== null) {
limit = parseInt(limit, 10);
// From 1 to 100
if (!(1 <= limit && limit <= 100)) {
return rej('invalid limit range');
}
} else {
limit = 10;
}
const since = params.since_id || null;
const max = params.max_id || null;
// Check if both of since_id and max_id is specified
if (since !== null && max !== null) {
return rej('cannot set since_id and max_id');
}
const query = {
$or: [{
user_id: user._id,
recipient_id: recipient._id
}, {
user_id: recipient._id,
recipient_id: user._id
}]
};
const sort = {
_id: -1
};
if (since !== null) {
sort._id = 1;
query._id = {
$gt: new mongo.ObjectID(since)
};
} else if (max !== null) {
query._id = {
$lt: new mongo.ObjectID(max)
};
}
// Issue query
const messages = await Message
.find(query, {
limit: limit,
sort: sort
});
// Serialize
res(await Promise.all(messages.map(async message =>
await serialize(message, user, {
populateRecipient: false
}))));
if (messages.length === 0) {
return;
}
// Mark as read all
if (markAsRead) {
const ids = messages
.filter(m => m.is_read == false)
.filter(m => m.recipient_id.equals(user._id))
.map(m => m._id);
// Update documents
await Message.update({
_id: { $in: ids }
}, {
$set: { is_read: true }
}, {
multi: true
});
// Publish event
publishMessagingStream(recipient._id, user._id, 'read', ids.map(id => id.toString()));
const count = await Message
.count({
recipient_id: user._id,
is_read: false
});
if (count == 0) {
// 全ての(いままで未読だった)メッセージを(これで)読みましたよというイベントを発行
publishUserStream(user._id, 'read_all_messaging_messages');
}
}
});
|
