114 lines
2.4 KiB
TypeScript
114 lines
2.4 KiB
TypeScript
import $ from 'cafy';
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import ID, { transform } from '../../../../misc/cafy-id';
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import Note from '../../../../models/note';
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import { pack } from '../../../../models/user';
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import define from '../../define';
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import { maximum } from '../../../../prelude/array';
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import { getHideUserIds } from '../../common/get-hide-users';
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import { ApiError } from '../../error';
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import { getUser } from '../../common/getters';
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export const meta = {
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requireCredential: false,
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params: {
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userId: {
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validator: $.type(ID),
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transform: transform,
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desc: {
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'ja-JP': '対象のユーザーのID',
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'en-US': 'Target user ID'
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}
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},
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limit: {
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validator: $.optional.num.range(1, 100),
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default: 10
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},
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},
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errors: {
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noSuchUser: {
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message: 'No such user.',
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code: 'NO_SUCH_USER',
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id: 'e6965129-7b2a-40a4-bae2-cd84cd434822'
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}
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}
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};
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export default define(meta, async (ps, me) => {
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// Lookup user
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const user = await getUser(ps.userId).catch(e => {
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if (e.id === '15348ddd-432d-49c2-8a5a-8069753becff') throw new ApiError(meta.errors.noSuchUser);
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throw e;
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});
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// Fetch recent notes
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const recentNotes = await Note.find({
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userId: user._id,
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replyId: {
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$exists: true,
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$ne: null
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}
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}, {
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sort: {
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_id: -1
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},
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limit: 1000,
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fields: {
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_id: false,
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replyId: true
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}
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});
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// 投稿が少なかったら中断
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if (recentNotes.length === 0) {
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return [];
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}
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const hideUserIds = await getHideUserIds(me);
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hideUserIds.push(user._id);
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const replyTargetNotes = await Note.find({
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_id: {
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$in: recentNotes.map(p => p.replyId)
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},
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userId: {
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$nin: hideUserIds
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}
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}, {
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fields: {
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_id: false,
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userId: true
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}
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});
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const repliedUsers: any = {};
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// Extract replies from recent notes
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for (const userId of replyTargetNotes.map(x => x.userId.toString())) {
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if (repliedUsers[userId]) {
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repliedUsers[userId]++;
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} else {
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repliedUsers[userId] = 1;
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}
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}
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// Calc peak
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const peak = maximum(Object.values(repliedUsers));
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// Sort replies by frequency
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const repliedUsersSorted = Object.keys(repliedUsers).sort((a, b) => repliedUsers[b] - repliedUsers[a]);
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// Extract top replied users
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const topRepliedUsers = repliedUsersSorted.slice(0, ps.limit);
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// Make replies object (includes weights)
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const repliesObj = await Promise.all(topRepliedUsers.map(async (user) => ({
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user: await pack(user, me, { detail: true }),
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weight: repliedUsers[user] / peak
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})));
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return repliesObj;
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});
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