Introduce processor

src/server/api/endpoints/messaging/messages.ts

@@ -0,0 +1,102 @@
+/**
+ * Module dependencies
+ */
+import $ from 'cafy';
+import Message from '../../models/messaging-message';
+import User from '../../models/user';
+import { pack } from '../../models/messaging-message';
+import read from '../../common/read-messaging-message';
+
+/**
+ * Get messages
+ *
+ * @param {any} params
+ * @param {any} user
+ * @return {Promise<any>}
+ */
+module.exports = (params, user) => new Promise(async (res, rej) => {
+	// Get 'user_id' parameter
+	const [recipientId, recipientIdErr] = $(params.user_id).id().$;
+	if (recipientIdErr) return rej('invalid user_id param');
+
+	// Fetch recipient
+	const recipient = await User.findOne({
+		_id: recipientId
+	}, {
+		fields: {
+			_id: true
+		}
+	});
+
+	if (recipient === null) {
+		return rej('user not found');
+	}
+
+	// Get 'mark_as_read' parameter
+	const [markAsRead = true, markAsReadErr] = $(params.mark_as_read).optional.boolean().$;
+	if (markAsReadErr) return rej('invalid mark_as_read param');
+
+	// Get 'limit' parameter
+	const [limit = 10, limitErr] = $(params.limit).optional.number().range(1, 100).$;
+	if (limitErr) return rej('invalid limit param');
+
+	// Get 'since_id' parameter
+	const [sinceId, sinceIdErr] = $(params.since_id).optional.id().$;
+	if (sinceIdErr) return rej('invalid since_id param');
+
+	// Get 'until_id' parameter
+	const [untilId, untilIdErr] = $(params.until_id).optional.id().$;
+	if (untilIdErr) return rej('invalid until_id param');
+
+	// Check if both of since_id and until_id is specified
+	if (sinceId && untilId) {
+		return rej('cannot set since_id and until_id');
+	}
+
+	const query = {
+		$or: [{
+			user_id: user._id,
+			recipient_id: recipient._id
+		}, {
+			user_id: recipient._id,
+			recipient_id: user._id
+		}]
+	} as any;
+
+	const sort = {
+		_id: -1
+	};
+
+	if (sinceId) {
+		sort._id = 1;
+		query._id = {
+			$gt: sinceId
+		};
+	} else if (untilId) {
+		query._id = {
+			$lt: untilId
+		};
+	}
+
+	// Issue query
+	const messages = await Message
+		.find(query, {
+			limit: limit,
+			sort: sort
+		});
+
+	// Serialize
+	res(await Promise.all(messages.map(async message =>
+		await pack(message, user, {
+			populateRecipient: false
+		}))));
+
+	if (messages.length === 0) {
+		return;
+	}
+
+	// Mark as read all
+	if (markAsRead) {
+		read(user._id, recipient._id, messages);
+	}
+});