ローカルタイムラインとグローバルタイムラインを実装

src/server/api/endpoints/notes/global-timeline.ts

@@ -0,0 +1,91 @@
+/**
+ * Module dependencies
+ */
+import $ from 'cafy';
+import Note from '../../../../models/note';
+import Mute from '../../../../models/mute';
+import { pack } from '../../../../models/note';
+
+/**
+ * Get timeline of global
+ */
+module.exports = async (params, user, app) => {
+	// Get 'limit' parameter
+	const [limit = 10, limitErr] = $(params.limit).optional.number().range(1, 100).$;
+	if (limitErr) throw 'invalid limit param';
+
+	// Get 'sinceId' parameter
+	const [sinceId, sinceIdErr] = $(params.sinceId).optional.id().$;
+	if (sinceIdErr) throw 'invalid sinceId param';
+
+	// Get 'untilId' parameter
+	const [untilId, untilIdErr] = $(params.untilId).optional.id().$;
+	if (untilIdErr) throw 'invalid untilId param';
+
+	// Get 'sinceDate' parameter
+	const [sinceDate, sinceDateErr] = $(params.sinceDate).optional.number().$;
+	if (sinceDateErr) throw 'invalid sinceDate param';
+
+	// Get 'untilDate' parameter
+	const [untilDate, untilDateErr] = $(params.untilDate).optional.number().$;
+	if (untilDateErr) throw 'invalid untilDate param';
+
+	// Check if only one of sinceId, untilId, sinceDate, untilDate specified
+	if ([sinceId, untilId, sinceDate, untilDate].filter(x => x != null).length > 1) {
+		throw 'only one of sinceId, untilId, sinceDate, untilDate can be specified';
+	}
+
+	// ミュートしているユーザーを取得
+	const mutedUserIds = (await Mute.find({
+		muterId: user._id
+	})).map(m => m.muteeId);
+
+	//#region Construct query
+	const sort = {
+		_id: -1
+	};
+
+	const query = {
+		// mute
+		userId: {
+			$nin: mutedUserIds
+		},
+		'_reply.userId': {
+			$nin: mutedUserIds
+		},
+		'_renote.userId': {
+			$nin: mutedUserIds
+		}
+	} as any;
+
+	if (sinceId) {
+		sort._id = 1;
+		query._id = {
+			$gt: sinceId
+		};
+	} else if (untilId) {
+		query._id = {
+			$lt: untilId
+		};
+	} else if (sinceDate) {
+		sort._id = 1;
+		query.createdAt = {
+			$gt: new Date(sinceDate)
+		};
+	} else if (untilDate) {
+		query.createdAt = {
+			$lt: new Date(untilDate)
+		};
+	}
+	//#endregion
+
+	// Issue query
+	const timeline = await Note
+		.find(query, {
+			limit: limit,
+			sort: sort
+		});
+
+	// Serialize
+	return await Promise.all(timeline.map(note => pack(note, user)));
+};