// Type definitions for non-npm package W3C Web USB API 1.0
// Project: https://wicg.github.io/webusb/
// Definitions by: Lars Knudsen <https://github.com/larsgk>
//                 Rob Moran <https://github.com/thegecko>
// Definitions: https://github.com/DefinitelyTyped/DefinitelyTyped
// TypeScript Version: 2.3

type USBDirection = "in" | "out";
type USBEndpointType = "bulk" | "interrupt" | "isochronous";
type USBRequestType = "standard" | "class" | "vendor";
type USBRecipient = "device" | "interface" | "endpoint" | "other";
type USBTransferStatus = "ok" | "stall" | "babble";

interface USBEndpoint {
    readonly endpointNumber: number;
    readonly direction: USBDirection;
    readonly type: USBEndpointType;
    readonly packetSize: number;
}

interface USBControlTransferParameters {
    requestType: USBRequestType;
    recipient: USBRecipient;
    request: number;
    value: number;
    index: number;
}

interface USBDeviceFilter {
    vendorId?: number;
    productId?: number;
    classCode?: number;
    subclassCode?: number;
    protocolCode?: number;
    serialNumber?: string;
}

interface USBDeviceRequestOptions {
    filters: USBDeviceFilter[];
}

interface USBConnectionEventInit extends EventInit {
    device: USBDevice;
}

declare class USBConfiguration {
    readonly configurationValue: number;
    readonly configurationName?: string;
    readonly interfaces: USBInterface[];
}

declare class USBInterface {
    constructor(configuration: USBConfiguration, interfaceNumber: number);
    readonly interfaceNumber: number;
    readonly alternate: USBAlternateInterface;
    readonly alternates: USBAlternateInterface[];
    readonly claimed: boolean;
}

declare class USBAlternateInterface {
    constructor(deviceInterface: USBInterface, alternateSetting: number);
    readonly alternateSetting: number;
    readonly interfaceClass: number;
    readonly interfaceSubclass: number;
    readonly interfaceProtocol: number;
    readonly interfaceName?: string;
    readonly endpoints: USBEndpoint[];
}

declare class USBInTransferResult {
    constructor(status: USBTransferStatus, data?: DataView);
    readonly data?: DataView;
    readonly status?: USBTransferStatus;
}

declare class USBOutTransferResult {
    constructor(status: USBTransferStatus, bytesWriten?: number);
    readonly bytesWritten: number;
    readonly status: USBTransferStatus;
}

declare class USBIsochronousInTransferPacket {
    constructor(status: USBTransferStatus, data?: DataView);
    readonly data?: DataView;
    readonly status?: USBTransferStatus;
}

declare class USBIsochronousInTransferResult {
    constructor(packets: USBIsochronousInTransferPacket[], data?: DataView);
    readonly data?: DataView;
    readonly packets: USBIsochronousInTransferPacket[];
}

declare class USBIsochronousOutTransferPacket {
    constructor(status: USBTransferStatus, bytesWritten?: number);
    readonly bytesWritten: number;
    readonly status: USBTransferStatus;
}

declare class USBConnectionEvent extends Event {
    constructor(type: string, eventInitDict: USBConnectionEventInit);
    readonly device: USBDevice;
}

declare class USBIsochronousOutTransferResult {
    constructor(packets: USBIsochronousOutTransferPacket[]);
    readonly packets: USBIsochronousOutTransferPacket[];
}

declare class USB extends EventTarget {
    onconnect(): (this: this, ev: Event) => any;
    ondisconnect(): (this: this, ev: Event) => any;
    getDevices(): Promise<USBDevice[]>;
    requestDevice(options?: USBDeviceRequestOptions): Promise<USBDevice>;
    addEventListener(type: "connect" | "disconnect", listener: (this: this, ev: USBConnectionEvent) => any, useCapture?: boolean): void;
    addEventListener(type: string, listener: EventListenerOrEventListenerObject | null, options?: boolean | AddEventListenerOptions): void;
}

declare class USBDevice {
    readonly usbVersionMajor: number;
    readonly usbVersionMinor: number;
    readonly usbVersionSubminor: number;
    readonly deviceClass: number;
    readonly deviceSubclass: number;
    readonly deviceProtocol: number;
    readonly vendorId: number;
    readonly productId: number;
    readonly deviceVersionMajor: number;
    readonly deviceVersionMinor: number;
    readonly deviceVersionSubminor: number;
    readonly manufacturerName?: string;
    readonly productName?: string;
    readonly serialNumber?: string;
    readonly configuration?: USBConfiguration;
    readonly configurations: USBConfiguration[];
    readonly opened: boolean;
    open(): Promise<void>;
    close(): Promise<void>;
    selectConfiguration(configurationValue: number): Promise<void>;
    claimInterface(interfaceNumber: number): Promise<void>;
    releaseInterface(interfaceNumber: number): Promise<void>;
    selectAlternateInterface(interfaceNumber: number, alternateSetting: number): Promise<void>;
    controlTransferIn(setup: USBControlTransferParameters, length: number): Promise<USBInTransferResult>;
    controlTransferOut(setup: USBControlTransferParameters, data?: BufferSource): Promise<USBOutTransferResult>;
    clearHalt(direction: USBDirection, endpointNumber: number): Promise<void>;
    transferIn(endpointNumber: number, length: number): Promise<USBInTransferResult>;
    transferOut(endpointNumber: number, data: BufferSource): Promise<USBOutTransferResult>;
    isochronousTransferIn(endpointNumber: number, packetLengths: number[]): Promise<USBIsochronousInTransferResult>;
    isochronousTransferOut(endpointNumber: number, data: BufferSource, packetLengths: number[]): Promise<USBIsochronousOutTransferResult>;
    reset(): Promise<void>;
}

interface Navigator {
    readonly usb: USB;
}