Initial commit 🍀

src/api/endpoints/messaging/messages.js

@@ -0,0 +1,139 @@
+'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 = {
+		created_at: -1
+	};
+
+	if (since !== null) {
+		sort.created_at = 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
+		})
+		.toArray();
+
+	// 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');
+		}
+	}
+});