120 lines
3.3 KiB
JavaScript
120 lines
3.3 KiB
JavaScript
import { Not, In, IsNull } from "typeorm";
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import { maximum } from "../../../../prelude/array.js";
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import { Notes, Users } from "../../../../models/index.js";
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import define from "../../define.js";
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import { ApiError } from "../../error.js";
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import { getUser } from "../../common/getters.js";
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export const meta = {
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tags: [
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"users"
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],
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requireCredential: false,
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requireCredentialPrivateMode: true,
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description: "Get a list of other users that the specified user frequently replies to.",
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res: {
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type: "array",
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optional: false,
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nullable: false,
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items: {
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type: "object",
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optional: false,
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nullable: false,
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properties: {
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user: {
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type: "object",
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optional: false,
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nullable: false,
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ref: "UserDetailed"
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},
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weight: {
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type: "number",
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optional: false,
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nullable: false
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}
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}
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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 const paramDef = {
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type: "object",
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properties: {
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userId: {
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type: "string",
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format: "misskey:id"
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},
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limit: {
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type: "integer",
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minimum: 1,
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maximum: 100,
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default: 10
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}
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},
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required: [
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"userId"
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]
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};
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export default define(meta, paramDef, 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: [
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"replyId"
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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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// 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: [
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"userId"
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]
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});
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const repliedUsers = {};
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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, {
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detail: true
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}),
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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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