Initial move

frontend/src/model/channel-list.ts

@@ -0,0 +1,46 @@
+import { Channel, IChannel } from "./channel";
+
+export interface IChannelList {
+    channels: IChannel[]
+}
+
+export class ChannelList implements IChannelList {
+    channels: Channel[] = [];
+
+    constructor(channels?: IChannelList) {
+        this.channels = channels?.channels?.map((chan) => new Channel(chan)) || [];
+    }
+
+    public addChannel(channel: Channel): void {
+        this.channels.push(channel);
+    }
+
+    public removeChannel(channelId: number): void {
+        this.channels = this.channels.filter(channel => channel.id !== channelId);
+    }
+
+    public getChannel(channelId: number): Channel|undefined {
+        return this.channels.find(channel => channel.id === channelId);
+    }
+
+    public getChannelByName(channelName: string): IChannel|undefined {
+        return this.channels.find(channel => channel.name === channelName);
+    }
+
+    public getChannels(): Channel[] {
+        return this.channels;
+    }
+
+    public getChannelIds(): number[] {
+        return this.channels.map(channel => channel.id);
+    }
+
+    public getChannelNames(): string[] {
+        return this.channels.map(channel => channel.name);
+    }
+
+    public getChannelId(channelName: string): number|undefined {
+        const channel = this.getChannelByName(channelName);
+        return channel ? channel.id : undefined;
+    }
+}