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

export interface AudioDevice {
	/**
	 * If `data` is deserialized, returns {@link CMsgSystemAudioManagerState}.
	 * @returns an object that can be used to unregister the callback.
	 */
	RegisterForStateChanges(callback: (data: ArrayBuffer) => void): Unregisterable;

	/**
	 * @param base64 Serialized base64 message from `CMsgSystemAudioManagerUpdateSomething`.
	 */
	UpdateSomething(base64: string): void;
}

export interface CMsgSystemAudioManagerState extends JsPbMessage {
	counter(): number | undefined;

	hw(): MsgSystemAudioManagerStateHW | undefined;

	rtime_filter(): number | undefined;
}

export interface MsgSystemAudioManagerStateHW {
	devices: MsgSystemAudioManagerDevice[];
	nodes: MsgSystemAudioManagerNode[];
	ports: MsgSystemAudioManagerPort[];
	links: MsgSystemAudioManagerLink[];
}

export interface MsgSystemAudioManagerDevice {
	base: MsgSystemAudioManagerObject | undefined;
	name: string | undefined;
	nick: string | undefined;
	description: string | undefined;
	api: string | undefined;
}

export interface MsgSystemAudioManagerNode {
	base: MsgSystemAudioManagerObject | undefined;
	device_id: number | undefined;
	name: string | undefined;
	nick: string | undefined;
	description: string | undefined;
	edirection: ESystemAudioDirection | undefined;
	volume: MsgSystemAudioVolume | undefined;
}

export interface MsgSystemAudioManagerPort {
	base: MsgSystemAudioManagerObject | undefined;
	node_id: number | undefined;
	name: string | undefined;
	alias: string | undefined;
	etype: ESystemAudioPortType | undefined;
	edirection: ESystemAudioPortDirection | undefined;
	is_physical: boolean | undefined;
	is_terminal: boolean | undefined;
	is_control: boolean | undefined;
	is_monitor: boolean | undefined;
}

export interface MsgSystemAudioVolume {
	entries: MsgSystemAudioVolumeChannelEntry[] | undefined;
	is_muted: boolean | undefined;
}

export interface MsgSystemAudioVolumeChannelEntry {
	echannel: ESystemAudioChannel | undefined;
	volume: number | undefined;
}

export interface MsgSystemAudioManagerLink {
	base: MsgSystemAudioManagerObject | undefined;
	output_node_id: number | undefined;
	output_port_id: number | undefined;
	input_node_id: number | undefined;
	input_port_id: number | undefined;
}

export interface MsgSystemAudioManagerObject {
	id: number | undefined;
	rtime_last_update: number | undefined;
}

export enum ESystemAudioDirection {
	Invalid,
	Input,
	Output,
}

export enum ESystemAudioPortDirection {
	Invalid,
	Input,
	Output,
}

export enum ESystemAudioPortType {
	Invalid,
	Unknown,
	Audio32f,
	Midi8b,
	Video32RGBA,
}

export enum ESystemAudioChannel {
	Invalid,
	Aggregated,
	FrontLeft,
	FrontRight,
	LFE,
	BackLeft,
	BackRight,
	FrontCenter,
	Unknown,
	Mono,
}