132 lines
3.3 KiB
TypeScript
132 lines
3.3 KiB
TypeScript
/**
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* Module dependencies
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*/
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import $ from 'cafy';
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import rap from '@prezzemolo/rap';
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import Post from '../../models/post';
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import Mute from '../../models/mute';
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import ChannelWatching from '../../models/channel-watching';
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import getFriends from '../../common/get-friends';
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import { pack } from '../../models/post';
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/**
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* Get timeline of myself
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*
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* @param {any} params
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* @param {any} user
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* @param {any} app
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* @return {Promise<any>}
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*/
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module.exports = async (params, user, app) => {
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// Get 'limit' parameter
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const [limit = 10, limitErr] = $(params.limit).optional.number().range(1, 100).$;
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if (limitErr) throw 'invalid limit param';
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// Get 'since_id' parameter
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const [sinceId, sinceIdErr] = $(params.since_id).optional.id().$;
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if (sinceIdErr) throw 'invalid since_id param';
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// Get 'until_id' parameter
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const [untilId, untilIdErr] = $(params.until_id).optional.id().$;
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if (untilIdErr) throw 'invalid until_id param';
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// Get 'since_date' parameter
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const [sinceDate, sinceDateErr] = $(params.since_date).optional.number().$;
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if (sinceDateErr) throw 'invalid since_date param';
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// Get 'until_date' parameter
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const [untilDate, untilDateErr] = $(params.until_date).optional.number().$;
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if (untilDateErr) throw 'invalid until_date param';
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// Check if only one of since_id, until_id, since_date, until_date specified
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if ([sinceId, untilId, sinceDate, untilDate].filter(x => x != null).length > 1) {
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throw 'only one of since_id, until_id, since_date, until_date can be specified';
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}
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const { followingIds, watchingChannelIds, mutedUserIds } = await rap({
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// ID list of the user itself and other users who the user follows
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followingIds: getFriends(user._id),
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// Watchしているチャンネルを取得
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watchingChannelIds: ChannelWatching.find({
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user_id: user._id,
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// 削除されたドキュメントは除く
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deleted_at: { $exists: false }
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}).then(watches => watches.map(w => w.channel_id)),
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// ミュートしているユーザーを取得
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mutedUserIds: Mute.find({
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muter_id: user._id,
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// 削除されたドキュメントは除く
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deleted_at: { $exists: false }
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}).then(ms => ms.map(m => m.mutee_id))
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});
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//#region Construct query
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const sort = {
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_id: -1
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};
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const query = {
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$or: [{
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// フォローしている人のタイムラインへの投稿
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user_id: {
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$in: followingIds
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},
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// 「タイムラインへの」投稿に限定するためにチャンネルが指定されていないもののみに限る
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$or: [{
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channel_id: {
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$exists: false
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}
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}, {
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channel_id: null
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}]
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}, {
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// Watchしているチャンネルへの投稿
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channel_id: {
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$in: watchingChannelIds
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}
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}],
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// mute
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user_id: {
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$nin: mutedUserIds
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},
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'_reply.user_id': {
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$nin: mutedUserIds
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},
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'_repost.user_id': {
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$nin: mutedUserIds
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},
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} as any;
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if (sinceId) {
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sort._id = 1;
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query._id = {
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$gt: sinceId
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};
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} else if (untilId) {
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query._id = {
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$lt: untilId
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};
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} else if (sinceDate) {
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sort._id = 1;
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query.created_at = {
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$gt: new Date(sinceDate)
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};
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} else if (untilDate) {
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query.created_at = {
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$lt: new Date(untilDate)
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};
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}
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//#endregion
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// Issue query
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const timeline = await Post
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.find(query, {
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limit: limit,
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sort: sort
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});
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// Serialize
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return await Promise.all(timeline.map(post => pack(post, user)));
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};
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