wip

1 files changed, 73 insertions, 0 deletions

diff --git a/src/api/endpoints/posts/timeline.ts b/src/api/endpoints/posts/timeline.ts
new file mode 100644
index 0000000000..5744084932
--- /dev/null
+++ b/src/api/endpoints/posts/timeline.ts
@@ -0,0 +1,73 @@
+'use strict';
+
+/**
+ * Module dependencies
+ */
+import it from '../../it';
+import Post from '../../models/post';
+import getFriends from '../../common/get-friends';
+import serialize from '../../serializers/post';
+
+/**
+ * Get timeline of myself
+ *
+ * @param {any} params
+ * @param {any} user
+ * @param {any} app
+ * @return {Promise<any>}
+ */
+module.exports = (params, user, app) =>
+	new Promise(async (res, rej) =>
+{
+	// Get 'limit' parameter
+	const [limit, limitErr] = it(params.limit).expect.number().range(1, 100).default(10).qed();
+	if (limitErr) return rej('invalid limit param');
+
+	// Get 'since_id' parameter
+	const [sinceId, sinceIdErr] = it(params.since_id).expect.id().qed();
+	if (sinceIdErr) return rej('invalid since_id param');
+
+	// Get 'max_id' parameter
+	const [maxId, maxIdErr] = it(params.max_id).expect.id().qed();
+	if (maxIdErr) return rej('invalid max_id param');
+
+	// Check if both of since_id and max_id is specified
+	if (sinceId !== null && maxId !== null) {
+		return rej('cannot set since_id and max_id');
+	}
+
+	// ID list of the user itself and other users who the user follows
+	const followingIds = await getFriends(user._id);
+
+	// Construct query
+	const sort = {
+		_id: -1
+	};
+	const query = {
+		user_id: {
+			$in: followingIds
+		}
+	} as any;
+	if (sinceId) {
+		sort._id = 1;
+		query._id = {
+			$gt: sinceId
+		};
+	} else if (maxId) {
+		query._id = {
+			$lt: maxId
+		};
+	}
+
+	// Issue query
+	const timeline = await Post
+		.find(query, {
+			limit: limit,
+			sort: sort
+		});
+
+	// Serialize
+	res(await Promise.all(timeline.map(async post =>
+		await serialize(post, user)
+	)));
+});