Post --> Note

Closes #1411

src/server/api/endpoints/notes/reposts.ts

@@ -0,0 +1,73 @@
+/**
+ * Module dependencies
+ */
+import $ from 'cafy';
+import Note, { pack } from '../../../../models/note';
+
+/**
+ * Show a renotes of a note
+ *
+ * @param {any} params
+ * @param {any} user
+ * @return {Promise<any>}
+ */
+module.exports = (params, user) => new Promise(async (res, rej) => {
+	// Get 'noteId' parameter
+	const [noteId, noteIdErr] = $(params.noteId).id().$;
+	if (noteIdErr) return rej('invalid noteId param');
+
+	// Get 'limit' parameter
+	const [limit = 10, limitErr] = $(params.limit).optional.number().range(1, 100).$;
+	if (limitErr) return rej('invalid limit param');
+
+	// Get 'sinceId' parameter
+	const [sinceId, sinceIdErr] = $(params.sinceId).optional.id().$;
+	if (sinceIdErr) return rej('invalid sinceId param');
+
+	// Get 'untilId' parameter
+	const [untilId, untilIdErr] = $(params.untilId).optional.id().$;
+	if (untilIdErr) return rej('invalid untilId param');
+
+	// Check if both of sinceId and untilId is specified
+	if (sinceId && untilId) {
+		return rej('cannot set sinceId and untilId');
+	}
+
+	// Lookup note
+	const note = await Note.findOne({
+		_id: noteId
+	});
+
+	if (note === null) {
+		return rej('note not found');
+	}
+
+	// Construct query
+	const sort = {
+		_id: -1
+	};
+	const query = {
+		renoteId: note._id
+	} as any;
+	if (sinceId) {
+		sort._id = 1;
+		query._id = {
+			$gt: sinceId
+		};
+	} else if (untilId) {
+		query._id = {
+			$lt: untilId
+		};
+	}
+
+	// Issue query
+	const renotes = await Note
+		.find(query, {
+			limit: limit,
+			sort: sort
+		});
+
+	// Serialize
+	res(await Promise.all(renotes.map(async note =>
+		await pack(note, user))));
+});