import define from '../../define'; import { maximum } from '@/prelude/array'; import { ApiError } from '../../error'; import { getUser } from '../../common/getters'; import { Not, In, IsNull } from 'typeorm'; import { Notes, Users } from '@/models/index'; export const meta = { tags: ['users'], requireCredential: false, res: { type: 'array', optional: false, nullable: false, items: { type: 'object', optional: false, nullable: false, properties: { user: { type: 'object', optional: false, nullable: false, ref: 'UserDetailed', }, weight: { type: 'number', optional: false, nullable: false, }, }, }, }, errors: { noSuchUser: { message: 'No such user.', code: 'NO_SUCH_USER', id: 'e6965129-7b2a-40a4-bae2-cd84cd434822', }, }, } as const; export const paramDef = { type: 'object', properties: { userId: { type: 'string', format: 'misskey:id' }, limit: { type: 'integer', minimum: 1, maximum: 100, default: 10 }, }, required: ['userId'], } as const; // eslint-disable-next-line import/no-default-export export default define(meta, paramDef, async (ps, me) => { // Lookup user const user = await getUser(ps.userId).catch(e => { if (e.id === '15348ddd-432d-49c2-8a5a-8069753becff') throw new ApiError(meta.errors.noSuchUser); throw e; }); // Fetch recent notes const recentNotes = await Notes.find({ where: { userId: user.id, replyId: Not(IsNull()), }, order: { id: -1, }, take: 1000, select: ['replyId'], }); // 投稿が少なかったら中断 if (recentNotes.length === 0) { return []; } // TODO ミュートを考慮 const replyTargetNotes = await Notes.find({ where: { id: In(recentNotes.map(p => p.replyId)), }, select: ['userId'], }); const repliedUsers: any = {}; // Extract replies from recent notes for (const userId of replyTargetNotes.map(x => x.userId.toString())) { if (repliedUsers[userId]) { repliedUsers[userId]++; } else { repliedUsers[userId] = 1; } } // Calc peak const peak = maximum(Object.values(repliedUsers)); // Sort replies by frequency const repliedUsersSorted = Object.keys(repliedUsers).sort((a, b) => repliedUsers[b] - repliedUsers[a]); // Extract top replied users const topRepliedUsers = repliedUsersSorted.slice(0, ps.limit); // Make replies object (includes weights) const repliesObj = await Promise.all(topRepliedUsers.map(async (user) => ({ user: await Users.pack(user, me, { detail: true }), weight: repliedUsers[user] / peak, }))); return repliesObj; });