109 lines
2.1 KiB
TypeScript
109 lines
2.1 KiB
TypeScript
import $ from 'cafy'; import ID, { transform } from '../../../../misc/cafy-id';
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import Note from '../../../../models/note';
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import User, { pack } from '../../../../models/user';
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import define from '../../define';
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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: $.num.optional.range(1, 100),
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default: 10
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},
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}
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};
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export default define(meta, (ps, me) => new Promise(async (res, rej) => {
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// Lookup user
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const user = await User.findOne({
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_id: ps.userId
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}, {
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fields: {
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_id: true
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}
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});
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if (user === null) {
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return rej('user not found');
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}
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// Fetch recent notes
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const recentNotes = await Note.find({
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userId: user._id,
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replyId: {
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$exists: true,
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$ne: null
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}
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}, {
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sort: {
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_id: -1
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},
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limit: 1000,
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fields: {
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_id: false,
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replyId: true
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}
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});
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// 投稿が少なかったら中断
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if (recentNotes.length === 0) {
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return res([]);
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}
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const replyTargetNotes = await Note.find({
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_id: {
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$in: recentNotes.map(p => p.replyId)
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},
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userId: {
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$ne: user._id
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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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replyTargetNotes.forEach(note => {
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const userId = note.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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let peak = 0;
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Object.keys(repliedUsers).forEach(user => {
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if (repliedUsers[user] > peak) peak = repliedUsers[user];
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});
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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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res(repliesObj);
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}));
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