Post --> Note

Closes #1411

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

@@ -0,0 +1,132 @@
+/**
+ * Module dependencies
+ */
+import $ from 'cafy';
+import rap from '@prezzemolo/rap';
+import Note from '../../../../models/note';
+import Mute from '../../../../models/mute';
+import ChannelWatching from '../../../../models/channel-watching';
+import getFriends from '../../common/get-friends';
+import { pack } from '../../../../models/note';
+
+/**
+ * Get timeline of myself
+ *
+ * @param {any} params
+ * @param {any} user
+ * @param {any} app
+ * @return {Promise<any>}
+ */
+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';
+	}
+
+	const { followingIds, watchingChannelIds, mutedUserIds } = await rap({
+		// ID list of the user itself and other users who the user follows
+		followingIds: getFriends(user._id),
+
+		// Watchしているチャンネルを取得
+		watchingChannelIds: ChannelWatching.find({
+			userId: user._id,
+			// 削除されたドキュメントは除く
+			deletedAt: { $exists: false }
+		}).then(watches => watches.map(w => w.channelId)),
+
+		// ミュートしているユーザーを取得
+		mutedUserIds: Mute.find({
+			muterId: user._id,
+			// 削除されたドキュメントは除く
+			deletedAt: { $exists: false }
+		}).then(ms => ms.map(m => m.muteeId))
+	});
+
+	//#region Construct query
+	const sort = {
+		_id: -1
+	};
+
+	const query = {
+		$or: [{
+			// フォローしている人のタイムラインへの投稿
+			userId: {
+				$in: followingIds
+			},
+			// 「タイムラインへの」投稿に限定するためにチャンネルが指定されていないもののみに限る
+			$or: [{
+				channelId: {
+					$exists: false
+				}
+			}, {
+				channelId: null
+			}]
+		}, {
+			// Watchしているチャンネルへの投稿
+			channelId: {
+				$in: watchingChannelIds
+			}
+		}],
+		// 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)));
+};