import {AbstractDeviceList, DeviceListEvents, IDevice, PermissionState} from "tc-shared/audio/recorder";
import {Registry} from "tc-shared/events";
import * as loader from "tc-loader";

import {audio} from "tc-native/connection";

interface NativeIDevice extends IDevice {
    isDefault: boolean
}

class InputDeviceList extends AbstractDeviceList {
    private cachedDevices: NativeIDevice[];

    constructor() {
        super();

        this.setPermissionState("granted");
    }

    isRefreshAvailable(): boolean {
        return false;
    }

    async refresh(): Promise<void> {
        throw "not supported";
    }

    async requestPermissions(): Promise<PermissionState> {
        return "granted";
    }

    getDefaultDeviceId(): string {
        return this.getDevices().find(e => e.isDefault)?.deviceId || "default";
    }

    getDevices(): NativeIDevice[] {
        if(this.cachedDevices)
            return this.cachedDevices;

        this.cachedDevices = audio.available_devices()
                                .filter(e => e.input_supported || e.input_default)
                                .filter(e => e.driver !== "Windows WDM-KS") /* If we're using WDM-KS and opening the microphone view, for some reason the channels get blocked an never release.... */
                                .map(device => {
                                    return {
                                        deviceId: device.device_id,
                                        name: device.name,
                                        driver: device.driver,
                                        isDefault: device.input_default
                                    }
                                });
        this.setState("healthy");
        return this.cachedDevices;
    }

    getEvents(): Registry<DeviceListEvents> {
        return this.events;
    }
}

export let inputDeviceList;

loader.register_task(loader.Stage.JAVASCRIPT_INITIALIZING, {
    function: async () => {
        inputDeviceList = new InputDeviceList();
        inputDeviceList.getDevices();
    },
    priority: 80,
    name: "initialize input devices"
});