hippofish/packages/backend/src/server/api/stream/channels/channel.ts
ThatOneCalculator 19c69c5048
chore: 🎨 format
2023-04-03 09:56:53 -07:00

81 lines
2.4 KiB
TypeScript

import Channel from "../channel.js";
import { Users } from "@/models/index.js";
import { isUserRelated } from "@/misc/is-user-related.js";
import type { User } from "@/models/entities/user.js";
import type { StreamMessages } from "../types.js";
import type { Packed } from "@/misc/schema.js";
export default class extends Channel {
public readonly chName = "channel";
public static shouldShare = false;
public static requireCredential = false;
private channelId: string;
private typers: Map<User["id"], Date> = new Map();
private emitTypersIntervalId: ReturnType<typeof setInterval>;
constructor(id: string, connection: Channel["connection"]) {
super(id, connection);
this.onNote = this.onNote.bind(this);
this.emitTypers = this.emitTypers.bind(this);
}
public async init(params: any) {
this.channelId = params.channelId as string;
// Subscribe stream
this.subscriber.on("notesStream", this.onNote);
this.subscriber.on(`channelStream:${this.channelId}`, this.onEvent);
this.emitTypersIntervalId = setInterval(this.emitTypers, 5000);
}
private async onNote(note: Packed<"Note">) {
if (note.channelId !== this.channelId) return;
// 流れてきたNoteがミュートしているユーザーが関わるものだったら無視する
if (isUserRelated(note, this.muting)) return;
// 流れてきたNoteがブロックされているユーザーが関わるものだったら無視する
if (isUserRelated(note, this.blocking)) return;
this.connection.cacheNote(note);
this.send("note", note);
}
private onEvent(data: StreamMessages["channel"]["payload"]) {
if (data.type === "typing") {
const id = data.body;
const begin = !this.typers.has(id);
this.typers.set(id, new Date());
if (begin) {
this.emitTypers();
}
}
}
private async emitTypers() {
const now = new Date();
// Remove not typing users
for (const [userId, date] of Object.entries(this.typers)) {
if (now.getTime() - date.getTime() > 5000) this.typers.delete(userId);
}
const userIds = Array.from(this.typers.keys());
const users = await Users.packMany(userIds, null, {
detail: false,
});
this.send({
type: "typers",
body: users,
});
}
public dispose() {
// Unsubscribe events
this.subscriber.off("notesStream", this.onNote);
this.subscriber.off(`channelStream:${this.channelId}`, this.onEvent);
clearInterval(this.emitTypersIntervalId);
}
}