/**
 * This file has no copyright assigned and is placed in the Public Domain.
 * This file is part of the mingw-w64 runtime package.
 * No warranty is given; refer to the file DISCLAIMER.PD within this package.
 */

#ifdef __WIDL__
#pragma winrt ns_prefix
#endif

import "inspectable.idl";

namespace Windows {
  namespace Foundation {
    interface IAsyncInfo;
    interface IAsyncAction;
    interface IAsyncOperation;
    interface AsyncActionCompletedHandler; // delegate
    interface TypedEventHandler;           // delegate
    struct    DateTime;
    struct    EventRegistrationToken;

    namespace Collections {
      interface IVectorView;
      interface IPropertySet;
    }
  }
}

namespace Windows {
  namespace Foundation {
    typedef enum AsyncStatus {
      Started,
      Completed,
      Canceled,
      Error
    } AsyncStatus;

    typedef struct DateTime {
      UINT64 UniversalTime;
    } DateTime;

    typedef struct EventRegistrationToken {
      UINT64 Value;
    } EventRegistrationToken;

    [uuid(00000036-0000-0000-C000-000000000046)]
    interface IAsyncInfo : IInspectable
    {
      [propget] HRESULT Id(unsigned int *id);
      [propget] HRESULT Status(AsyncStatus *status);
      [propget] HRESULT ErrorCode(HRESULT *errorCode);
      HRESULT Cancel();
      HRESULT Close();
    }

    [uuid(5A648006-843A-4DA9-865B-9D26E5DFAD7B)]
    interface IASyncAction : IAsyncInfo {
      [propput] HRESULT Completed(AsyncActionCompletedHandler* handler);
      [propget] HRESULT Completed(AsyncActionCompletedHandler** handler);
      HRESULT GetResults();
    }

    [uuid(A4ED5C81-76C9-40BD-8BE6-B1D90FB20AE7)]
    interface AsyncActionCompletedHandler : IUnknown {
      //FIXME: should support cyclic dependency
      HRESULT Invoke(IAsyncAction *asyncAction, AsyncStatus status);
    }

    //FIXME: WHERE IS IT?
    //generic <typename TResult>
    [uuid("9fc2b0bb-e446-44e2-aa61-9cab8f636af2")]
    interface IAsyncOperation : IAsyncInfo {
      [propput] HRESULT Completed(AsyncActionCompletedHandler* handler);
      [propget] HRESULT Completed(AsyncActionCompletedHandler** handler);
      //FIXME: implement generics
      /*TResult*/ IInspectable* GetResults();
    }


    namespace Collections {
      //interface IVectorView;
      /*[uuid(8A43ED9F-F4E6-4421-ACF9-1DAB2986820C)]
      interface IPropertySet : IInspectable {
        //
      }*/
    }
  }
}