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0e4a111f81
Resolve #7779
105 lines
2.3 KiB
TypeScript
105 lines
2.3 KiB
TypeScript
import $ from 'cafy';
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import { ID } from '@/misc/cafy-id';
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import define from '../../define';
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import { maximum } from '@/prelude/array';
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import { ApiError } from '../../error';
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import { getUser } from '../../common/getters';
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import { Not, In, IsNull } from 'typeorm';
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import { Notes, Users } from '@/models/index';
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export const meta = {
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tags: ['users'],
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requireCredential: false as const,
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params: {
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userId: {
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validator: $.type(ID),
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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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res: {
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type: 'array' as const,
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optional: false as const, nullable: false as const,
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items: {
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type: 'object' as const,
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optional: false as const, nullable: false as const,
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ref: 'User',
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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 Notes.find({
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where: {
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userId: user.id,
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replyId: Not(IsNull())
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},
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order: {
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id: -1
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},
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take: 1000,
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select: ['replyId']
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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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// TODO ミュートを考慮
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const replyTargetNotes = await Notes.find({
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where: {
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id: In(recentNotes.map(p => p.replyId)),
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},
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select: ['userId']
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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 Users.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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