From f3d5c07ada08a089969176cdb7b7bfc3f0132fda Mon Sep 17 00:00:00 2001
From: syuilo <syuilotan@yahoo.co.jp>
Date: Thu, 2 Mar 2017 17:08:09 +0900
Subject: wip

---
 src/api/endpoints/posts/context.js | 83 --------------------------------------
 src/api/endpoints/posts/context.ts | 81 +++++++++++++++++++++++++++++++++++++
 2 files changed, 81 insertions(+), 83 deletions(-)
 delete mode 100644 src/api/endpoints/posts/context.js
 create mode 100644 src/api/endpoints/posts/context.ts

(limited to 'src/api')

diff --git a/src/api/endpoints/posts/context.js b/src/api/endpoints/posts/context.js
deleted file mode 100644
index b843044642..0000000000
--- a/src/api/endpoints/posts/context.js
+++ /dev/null
@@ -1,83 +0,0 @@
-'use strict';
-
-/**
- * Module dependencies
- */
-import * as mongo from 'mongodb';
-import Post from '../../models/post';
-import serialize from '../../serializers/post';
-
-/**
- * Show a context of 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 = params.post_id;
-	if (postId === undefined || postId === null) {
-		return rej('post_id is required');
-	}
-
-	// 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;
-	}
-
-	// Get 'offset' parameter
-	let offset = params.offset;
-	if (offset !== undefined && offset !== null) {
-		offset = parseInt(offset, 10);
-	} else {
-		offset = 0;
-	}
-
-	// Lookup post
-	const post = await Post.findOne({
-		_id: new mongo.ObjectID(postId)
-	});
-
-	if (post === null) {
-		return rej('post not found', 'POST_NOT_FOUND');
-	}
-
-	const context = [];
-	let i = 0;
-
-	async function get(id) {
-		i++;
-		const p = await Post.findOne({ _id: id });
-
-		if (i > offset) {
-			context.push(p);
-		}
-
-		if (context.length == limit) {
-			return;
-		}
-
-		if (p.reply_to_id) {
-			await get(p.reply_to_id);
-		}
-	}
-
-	if (post.reply_to_id) {
-		await get(post.reply_to_id);
-	}
-
-	// Serialize
-	res(await Promise.all(context.map(async post =>
-		await serialize(post, user))));
-});
diff --git a/src/api/endpoints/posts/context.ts b/src/api/endpoints/posts/context.ts
new file mode 100644
index 0000000000..673da0fab8
--- /dev/null
+++ b/src/api/endpoints/posts/context.ts
@@ -0,0 +1,81 @@
+'use strict';
+
+/**
+ * Module dependencies
+ */
+import validate from '../../validator';
+import Post from '../../models/post';
+import serialize from '../../serializers/post';
+
+/**
+ * Show a context of 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] = validate(params.post_id, 'id', true);
+	if (postIdErr) return rej('invalid post_id');
+
+	// Get 'limit' parameter
+	let [limit, limitErr] = validate(params.limit, 'number');
+	if (limitErr) return rej('invalid limit');
+
+	if (limit !== null) {
+		// From 1 to 100
+		if (!(1 <= limit && limit <= 100)) {
+			return rej('invalid limit range');
+		}
+	} else {
+		limit = 10;
+	}
+
+	// Get 'offset' parameter
+	let offset = params.offset;
+	if (offset !== undefined && offset !== null) {
+		offset = parseInt(offset, 10);
+	} else {
+		offset = 0;
+	}
+
+	// Lookup post
+	const post = await Post.findOne({
+		_id: new mongo.ObjectID(postId)
+	});
+
+	if (post === null) {
+		return rej('post not found', 'POST_NOT_FOUND');
+	}
+
+	const context = [];
+	let i = 0;
+
+	async function get(id) {
+		i++;
+		const p = await Post.findOne({ _id: id });
+
+		if (i > offset) {
+			context.push(p);
+		}
+
+		if (context.length == limit) {
+			return;
+		}
+
+		if (p.reply_to_id) {
+			await get(p.reply_to_id);
+		}
+	}
+
+	if (post.reply_to_id) {
+		await get(post.reply_to_id);
+	}
+
+	// Serialize
+	res(await Promise.all(context.map(async post =>
+		await serialize(post, user))));
+});
-- 
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