/**
 * Looking Glass
 * Copyright © 2017-2026 The Looking Glass Authors
 * https://looking-glass.io
 *
 * This program 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 2 of the License, or (at your option)
 * any later version.
 *
 * This program 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, write to the Free Software Foundation, Inc., 59
 * Temple Place, Suite 330, Boston, MA 02111-1307 USA
 */

#pragma once

#include <windows.h>
#include <wdf.h>
#include <stdint.h>
#include <vector>

#include "CPipeEndpoint.h"
#include "CSRWLock.h"
#include "PipeMsg.h"

class CDeviceContext;

class CPipeServer : private IPipeEndpointHandler
{
  public:
    using RecoveryHandler = void (*)(void * opaque,
      uint64_t route, uint64_t session, uint32_t serial, bool active,
      LGPipeMsg::Type result);

  private:
    CPipeEndpoint          m_endpoint;
    CSRWLock               m_queueLock;
    std::vector<LGPipeMsg> m_queue;
    bool                   m_recoveryValid   = false;
    LGPipeMsg              m_recoveryRequest = {};

    CSRWLock         m_deviceContextLock;
    CDeviceContext * m_deviceContext = nullptr;

    CSRWLock        m_recoveryLock;
    RecoveryHandler m_recoveryHandler = nullptr;
    void *          m_recoveryOpaque  = nullptr;
    uint64_t        m_recoveryRoute   = 0;

    void WriteMsg(const LGPipeMsg & msg);
    void QueueMsgLocked(const LGPipeMsg & msg);

    void HandleReloadSettings();
    void HandleRecovery(const LGPipeMsg & msg);

    void OnPipeConnected() override;
    bool OnPipeMessage(const void * message, size_t size) override;

  public:
    ~CPipeServer() { DeInit(); }

    bool Init();
    void DeInit();

    void SetDeviceContext(CDeviceContext * context);
    void SetRecoveryHandler(RecoveryHandler handler, void * opaque);
    void ClearRecoveryHandler(void * opaque);

    void SetCursorPos(uint32_t x, uint32_t y);
    void SetDisplayMode(
      uint32_t width, uint32_t height, uint32_t refreshMilliHz);
    void SetGPUStatus(bool software);
    void ResolutionRejected(uint32_t width, uint32_t height,
      uint32_t requiredSizeMiB);
    bool SetRecovery(void * owner, uint64_t route,
      uint64_t session, uint32_t serial, bool active);
};

extern CPipeServer g_pipe;