refactoring

Resolve #7779

packages/backend/src/server/api/stream/channel.ts

@@ -0,0 +1,62 @@
+import autobind from 'autobind-decorator';
+import Connection from '.';
+
+/**
+ * Stream channel
+ */
+export default abstract class Channel {
+	protected connection: Connection;
+	public id: string;
+	public abstract readonly chName: string;
+	public static readonly shouldShare: boolean;
+	public static readonly requireCredential: boolean;
+
+	protected get user() {
+		return this.connection.user;
+	}
+
+	protected get userProfile() {
+		return this.connection.userProfile;
+	}
+
+	protected get following() {
+		return this.connection.following;
+	}
+
+	protected get muting() {
+		return this.connection.muting;
+	}
+
+	protected get blocking() {
+		return this.connection.blocking;
+	}
+
+	protected get followingChannels() {
+		return this.connection.followingChannels;
+	}
+
+	protected get subscriber() {
+		return this.connection.subscriber;
+	}
+
+	constructor(id: string, connection: Connection) {
+		this.id = id;
+		this.connection = connection;
+	}
+
+	@autobind
+	public send(typeOrPayload: any, payload?: any) {
+		const type = payload === undefined ? typeOrPayload.type : typeOrPayload;
+		const body = payload === undefined ? typeOrPayload.body : payload;
+
+		this.connection.sendMessageToWs('channel', {
+			id: this.id,
+			type: type,
+			body: body
+		});
+	}
+
+	public abstract init(params: any): void;
+	public dispose?(): void;
+	public onMessage?(type: string, body: any): void;
+}