Introduce processor

src/server/api/endpoints/i/notifications.ts

@@ -0,0 +1,110 @@
+/**
+ * Module dependencies
+ */
+import $ from 'cafy';
+import Notification from '../../models/notification';
+import Mute from '../../models/mute';
+import { pack } from '../../models/notification';
+import getFriends from '../../common/get-friends';
+import read from '../../common/read-notification';
+
+/**
+ * Get notifications
+ *
+ * @param {any} params
+ * @param {any} user
+ * @return {Promise<any>}
+ */
+module.exports = (params, user) => new Promise(async (res, rej) => {
+	// Get 'following' parameter
+	const [following = false, followingError] =
+		$(params.following).optional.boolean().$;
+	if (followingError) return rej('invalid following param');
+
+	// 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 'type' parameter
+	const [type, typeErr] = $(params.type).optional.array('string').unique().$;
+	if (typeErr) return rej('invalid type 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 mute = await Mute.find({
+		muter_id: user._id,
+		deleted_at: { $exists: false }
+	});
+
+	const query = {
+		notifiee_id: user._id,
+		$and: [{
+			notifier_id: {
+				$nin: mute.map(m => m.mutee_id)
+			}
+		}]
+	} as any;
+
+	const sort = {
+		_id: -1
+	};
+
+	if (following) {
+		// ID list of the user itself and other users who the user follows
+		const followingIds = await getFriends(user._id);
+
+		query.$and.push({
+			notifier_id: {
+				$in: followingIds
+			}
+		});
+	}
+
+	if (type) {
+		query.type = {
+			$in: type
+		};
+	}
+
+	if (sinceId) {
+		sort._id = 1;
+		query._id = {
+			$gt: sinceId
+		};
+	} else if (untilId) {
+		query._id = {
+			$lt: untilId
+		};
+	}
+
+	// Issue query
+	const notifications = await Notification
+		.find(query, {
+			limit: limit,
+			sort: sort
+		});
+
+	// Serialize
+	res(await Promise.all(notifications.map(async notification =>
+		await pack(notification))));
+
+	// Mark as read all
+	if (notifications.length > 0 && markAsRead) {
+		read(user._id, notifications);
+	}
+});