refactoring

Resolve #7779

packages/backend/src/server/api/stream/channels/antenna.ts

@@ -0,0 +1,45 @@
+import autobind from 'autobind-decorator';
+import Channel from '../channel';
+import { Notes } from '@/models/index';
+import { isMutedUserRelated } from '@/misc/is-muted-user-related';
+import { isBlockerUserRelated } from '@/misc/is-blocker-user-related';
+import { StreamMessages } from '../types';
+
+export default class extends Channel {
+	public readonly chName = 'antenna';
+	public static shouldShare = false;
+	public static requireCredential = false;
+	private antennaId: string;
+
+	@autobind
+	public async init(params: any) {
+		this.antennaId = params.antennaId as string;
+
+		// Subscribe stream
+		this.subscriber.on(`antennaStream:${this.antennaId}`, this.onEvent);
+	}
+
+	@autobind
+	private async onEvent(data: StreamMessages['antenna']['payload']) {
+		if (data.type === 'note') {
+			const note = await Notes.pack(data.body.id, this.user, { detail: true });
+
+			// 流れてきたNoteがミュートしているユーザーが関わるものだったら無視する
+			if (isMutedUserRelated(note, this.muting)) return;
+			// 流れてきたNoteがブロックされているユーザーが関わるものだったら無視する
+			if (isBlockerUserRelated(note, this.blocking)) return;
+
+			this.connection.cacheNote(note);
+
+			this.send('note', note);
+		} else {
+			this.send(data.type, data.body);
+		}
+	}
+
+	@autobind
+	public dispose() {
+		// Unsubscribe events
+		this.subscriber.off(`antennaStream:${this.antennaId}`, this.onEvent);
+	}
+}