import { OperationResponse, Unregisterable } from '../shared';

/**
 * Provides functionality for managing Bluetooth devices and interactions.
 */
export interface Bluetooth {
	/**
	 * Cancels an ongoing pairing request with a Bluetooth device.
	 * @param adapterId The ID of the Bluetooth adapter.
	 * @param deviceId The ID of the Bluetooth device to cancel pairing with.
	 */
	CancelPairing(adapterId: number, deviceId: number): Promise<OperationResponse>;

	/**
	 * Connects to a paired Bluetooth device using the specified adapter.
	 * @param adapterId The ID of the Bluetooth adapter.
	 * @param deviceId The ID of the paired Bluetooth device to connect to.
	 */
	Connect(adapterId: number, deviceId: number): Promise<OperationResponse>;

	/**
	 * Disconnects from a currently connected Bluetooth device using the specified adapter.
	 * @param adapterId The ID of the Bluetooth adapter.
	 * @param deviceId The ID of the connected Bluetooth device to disconnect from.
	 */
	Disconnect(adapterId: number, deviceId: number): Promise<OperationResponse>;

	/**
	 * Initiates pairing with a Bluetooth device using the specified adapter.
	 * @param adapterId The ID of the Bluetooth adapter.
	 * @param deviceId The ID of the Bluetooth device to initiate pairing with.
	 */
	Pair(adapterId: number, deviceId: number): Promise<OperationResponse>;

	/**
	 * Registers a callback function to be called when the Bluetooth state changes.
	 * @param callback The callback function to be called.
	 * @returns an object that can be used to unregister the callback.
	 */
	RegisterForStateChanges(callback: (state: BluetoothState) => void): Unregisterable;

	/**
	 * Sets whether the Bluetooth adapter should be in discovering mode.
	 * @param adapterId The ID of the Bluetooth adapter.
	 * @param value `true` to enable discovering mode, `false` to disable it.
	 */
	SetAdapterDiscovering(adapterId: number, value: boolean): Promise<OperationResponse>;

	/**
	 * Enables or disables Bluetooth functionality.
	 * @param value `true` to enable Bluetooth, `false` to disable it.
	 */
	SetEnabled(value: boolean): Promise<OperationResponse>;

	/**
	 * Unpairs a Bluetooth device from the adapter.
	 * @param adapterId The ID of the Bluetooth adapter.
	 * @param deviceId The ID of the Bluetooth device to unpair with.
	 */
	UnPair(adapterId: number, deviceId: number): Promise<OperationResponse>;
}

/**
 * Represents a change in the state of Bluetooth adapters and devices.
 */
export interface BluetoothState {
	/**
	 * An array of Bluetooth adapters with their current state.
	 */
	vecAdapters: BluetoothAdapter[];

	/**
	 * An array of Bluetooth devices with their current state.
	 */
	vecDevices: BluetoothDevice[];

	/**
	 * Indicates whether Bluetooth is enabled (`true`) or disabled (`false`).
	 */
	bEnabled: boolean;
}

/**
 * Represents information about a Bluetooth adapter.
 */
export interface BluetoothAdapter {
	/**
	 * The unique identifier of the Bluetooth adapter.
	 */
	nId: number;

	/**
	 * The MAC address of the Bluetooth adapter.
	 */
	sMAC: string;

	/**
	 * The name of the Bluetooth adapter.
	 */
	sName: string;

	/**
	 * Indicates whether the Bluetooth adapter is enabled.
	 */
	bEnabled: boolean;

	/**
	 * Indicates whether the Bluetooth adapter is in discovering mode.
	 */
	bDiscovering: boolean;
}

/**
 * Represents information about a Bluetooth device.
 */
export interface BluetoothDevice {
	/**
	 * The unique identifier of the Bluetooth device.
	 */
	nId: number;

	/**
	 * The ID of the Bluetooth adapter to which this device is discovered by / connected to.
	 */
	nAdapterId: number;

	/**
	 * The type of the Bluetooth device (e.g., headphones, mouse, keyboard).
	 */
	eType: EBluetoothDeviceType;

	/**
	 * The MAC address of the Bluetooth device.
	 */
	sMAC: string;

	/**
	 * The name of the Bluetooth device.
	 */
	sName: string;

	/**
	 * Indicates whether the Bluetooth device is currently connected to the adapter.
	 */
	bConnected: boolean;

	/**
	 * Indicates whether the Bluetooth device is paired to the adapter.
	 */
	bPaired: boolean;

	/**
	 * The raw signal strength of the Bluetooth device.
	 */
	nStrengthRaw: number;
}

export enum EBluetoothDeviceType {
	Invalid,
	Unknown,
	Phone,
	Computer,
	Headset,
	Headphones,
	Speakers,
	OtherAudio,
	Mouse,
	Joystick,
	Gamepad,
	Keyboard,
}