From 583b64331b4d3d36f642801c847109b8634df1d9 Mon Sep 17 00:00:00 2001
From: syuilo <syuilotan@yahoo.co.jp>
Date: Fri, 3 Mar 2017 08:00:10 +0900
Subject: wip

---
 src/api/endpoints/posts/likes/create.ts | 85 +++++++++++++++++++++++++++++++++
 1 file changed, 85 insertions(+)
 create mode 100644 src/api/endpoints/posts/likes/create.ts

(limited to 'src/api/endpoints/posts/likes/create.ts')

diff --git a/src/api/endpoints/posts/likes/create.ts b/src/api/endpoints/posts/likes/create.ts
new file mode 100644
index 0000000000..0ae417e239
--- /dev/null
+++ b/src/api/endpoints/posts/likes/create.ts
@@ -0,0 +1,85 @@
+'use strict';
+
+/**
+ * Module dependencies
+ */
+import it from '../../../it';
+import Like from '../../../models/like';
+import Post from '../../../models/post';
+import User from '../../../models/user';
+import notify from '../../../common/notify';
+
+/**
+ * Like a post
+ *
+ * @param {any} params
+ * @param {any} user
+ * @return {Promise<any>}
+ */
+module.exports = (params, user) =>
+	new Promise(async (res, rej) => {
+		// Get 'post_id' parameter
+		const [postId, postIdErr] = it(params.post_id, 'id', true);
+		if (postIdErr) return rej('invalid post_id param');
+
+		// Get likee
+		const post = await Post.findOne({
+			_id: postId
+		});
+
+		if (post === null) {
+			return rej('post not found');
+		}
+
+		// Myself
+		if (post.user_id.equals(user._id)) {
+			return rej('-need-translate-');
+		}
+
+		// if already liked
+		const exist = await Like.findOne({
+			post_id: post._id,
+			user_id: user._id,
+			deleted_at: { $exists: false }
+		});
+
+		if (exist !== null) {
+			return rej('already liked');
+		}
+
+		// Create like
+		await Like.insert({
+			created_at: new Date(),
+			post_id: post._id,
+			user_id: user._id
+		});
+
+		// Send response
+		res();
+
+		// Increment likes count
+		Post.update({ _id: post._id }, {
+			$inc: {
+				likes_count: 1
+			}
+		});
+
+		// Increment user likes count
+		User.update({ _id: user._id }, {
+			$inc: {
+				likes_count: 1
+			}
+		});
+
+		// Increment user liked count
+		User.update({ _id: post.user_id }, {
+			$inc: {
+				liked_count: 1
+			}
+		});
+
+		// Notify
+		notify(post.user_id, user._id, 'like', {
+			post_id: post._id
+		});
+	});
-- 
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