/*
 * (C) 2003-2006 Gabest
 * (C) 2006-2014 see Authors.txt
 *
 * This file is part of MPC-BE.
 *
 * MPC-BE is free software; you can redistribute it and/or modify
 * it under the terms of the GNU General Public License as published by
 * the Free Software Foundation; either version 3 of the License, or
 * (at your option) any later version.
 *
 * MPC-BE is distributed in the hope that it will be useful,
 * but WITHOUT ANY WARRANTY; without even the implied warranty of
 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
 * GNU General Public License for more details.
 *
 * You should have received a copy of the GNU General Public License
 * along with this program.  If not, see <http://www.gnu.org/licenses/>.
 *
 */

#pragma once

#include "MultiFiles.h"

interface __declspec(uuid("6DDB4EE7-45A0-4459-A508-BD77B32C91B2"))
ISyncReader :
public IUnknown {
	STDMETHOD_(void, SetBreakEvent) (HANDLE hBreakEvent) PURE;
	STDMETHOD_(bool, HasErrors) () PURE;
	STDMETHOD_(void, ClearErrors) () PURE;
	STDMETHOD_(void, SetPTSOffset) (REFERENCE_TIME* rtPTSOffset) PURE;
};

interface __declspec(uuid("7D55F67A-826E-40B9-8A7D-3DF0CBBD272D"))
IFileHandle :
public IUnknown {
	STDMETHOD_(HANDLE, GetFileHandle)() PURE;
	STDMETHOD_(LPCTSTR, GetFileName)() PURE;
	STDMETHOD_(bool, IsValidFilename)() PURE;
};

class CAsyncFileReader : public CUnknown, public CMultiFiles, public IAsyncReader, public ISyncReader, public IFileHandle
{
protected:
	ULONGLONG m_len;
	HANDLE m_hBreakEvent;
	LONG m_lOsError; // CFileException::m_lOsError

public:
	CAsyncFileReader(CString fn, HRESULT& hr);
	CAsyncFileReader(CHdmvClipInfo::CPlaylist& Items, HRESULT& hr);

	DECLARE_IUNKNOWN;
	STDMETHODIMP NonDelegatingQueryInterface(REFIID riid, void** ppv);

	// IAsyncReader

	STDMETHODIMP RequestAllocator(IMemAllocator* pPreferred, ALLOCATOR_PROPERTIES* pProps, IMemAllocator** ppActual) {
		return E_NOTIMPL;
	}
	STDMETHODIMP Request(IMediaSample* pSample, DWORD_PTR dwUser) {
		return E_NOTIMPL;
	}
	STDMETHODIMP WaitForNext(DWORD dwTimeout, IMediaSample** ppSample, DWORD_PTR* pdwUser) {
		return E_NOTIMPL;
	}
	STDMETHODIMP SyncReadAligned(IMediaSample* pSample) {
		return E_NOTIMPL;
	}
	STDMETHODIMP SyncRead(LONGLONG llPosition, LONG lLength, BYTE* pBuffer);
	STDMETHODIMP Length(LONGLONG* pTotal, LONGLONG* pAvailable);
	STDMETHODIMP BeginFlush() {
		return E_NOTIMPL;
	}
	STDMETHODIMP EndFlush() {
		return E_NOTIMPL;
	}

	// ISyncReader

	STDMETHODIMP_(void) SetBreakEvent(HANDLE hBreakEvent) {
		m_hBreakEvent = hBreakEvent;
	}
	STDMETHODIMP_(bool) HasErrors() {
		return m_lOsError != 0;
	}
	STDMETHODIMP_(void) ClearErrors() {
		m_lOsError = 0;
	}
	STDMETHODIMP_(void) SetPTSOffset (REFERENCE_TIME* rtPTSOffset) {
		m_pCurrentPTSOffset = rtPTSOffset;
	};

	// IFileHandle

	STDMETHODIMP_(HANDLE) GetFileHandle();
	STDMETHODIMP_(LPCTSTR) GetFileName();
	STDMETHODIMP_(bool) IsValidFilename();
};
