decoupling everlong things

decouple.ts

type Message = Uint8Array;

class BluetoothControl {

    collectScanResult() {

    }

    private _onDiscoverCallback: (device: BLEDevice) => void
    onDiscoverDevice(callback: (device: BLEDevice) => void) {
        this._onDiscoverCallback = callback;
    }
}

class BLEDevice {

    constructor() {}

    private _onMessage: (data: Message) => void
    public setOnMessage(callback: (data: Message) => void) {
        this._onMessage = callback;
    }

    private _listenTo() {
        // listen to bluetooth
        this._onMessage?.(new Uint8Array());
    }

    public toogleHost() {}
}




class Classroom {

    devices: BLEDevice[]

    constructor() { }


    addDevice(device: BLEDevice) {
        device.setOnMessage(this.sendLocal);
        this.devices.push(device);
    }

    sendLocal(uint8: Uint8Array) {
        // forward
    }

}

class Online {
    devices: BLEDevice[]
    addDevice(device: BLEDevice) {
        device.setOnMessage(this.sendLocal);
        this.devices.push(device);
    }
    sendLocal(uint8: Uint8Array) {
        // forward
    }
}


class ModeController {

    constructor(
        private classroom: Classroom,
        private online: Online,
        private bluetoothControl: BluetoothControl,
    ) {

    }

    onModeChange(mode: 'Online' | 'Classroom') {
        if (mode === 'Online') {
            this.bluetoothControl.onDiscoverDevice(this.online.addDevice);
        } else {
            this.bluetoothControl.onDiscoverDevice(this.classroom.addDevice);
        }
    }

}


function init() {

    const bluetoothControl = new BluetoothControl();
    const classroom = new Classroom();


}