/*
  serial2socket.h -  serial 2 socket functions class

  Copyright (c) 2014 Luc Lebosse. All rights reserved.

  This library is free software; you can redistribute it and/or
  modify it under the terms of the GNU Lesser General Public
  License as published by the Free Software Foundation; either
  version 2.1 of the License, or (at your option) any later version.

  This library 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
  Lesser General Public License for more details.

  You should have received a copy of the GNU Lesser General Public
  License along with this library; if not, write to the Free Software
  Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA  02110-1301  USA
*/

#ifndef _SERIAL_2_SOCKET_H_
#define _SERIAL_2_SOCKET_H_

#include <Print.h>

#include "../authentication/authentication_level_types.h"
#define S2S_TXBUFFERSIZE 512
#define S2S_RXBUFFERSIZE 256
#define S2S_FLUSHTIMEOUT 500

class ESP3DMessage;  // forward declaration

class Serial_2_Socket : public Stream {
 public:
  Serial_2_Socket();
  ~Serial_2_Socket();
  size_t write(uint8_t c);
  size_t write(const uint8_t *buffer, size_t size);
  bool dispatch(ESP3DMessage *message);

  inline size_t write(const char *s) { return write((uint8_t *)s, strlen(s)); }
  inline size_t write(unsigned long n) { return write((uint8_t)n); }
  inline size_t write(long n) { return write((uint8_t)n); }
  inline size_t write(unsigned int n) { return write((uint8_t)n); }
  inline size_t write(int n) { return write((uint8_t)n); }
  long baudRate();
  void begin(long speed);
  void end();
  void enable(bool enable = true);
  bool started();
  int available();
  int peek(void);
  int read(void);
  bool push2RX(const uint8_t *buffer, size_t size);
  void flush(bool useMutex = true);
  void handle_flush();
  void handle();
  operator bool() const;
  void pause(bool state = true);
  bool isPaused();

 private:
  bool _started;
  bool _paused;
  ESP3DAuthenticationLevel _auth;
  void* _rxBufferMutex; // Opaque pointer for RX buffer mutex
  void* _txBufferMutex; // Opaque pointer for TX buffer mutex
  uint32_t _lastflush;
  uint8_t _TXbuffer[S2S_TXBUFFERSIZE+1];
  uint16_t _TXbufferSize;
  uint8_t _RXbuffer[S2S_RXBUFFERSIZE+1];
  uint16_t _RXbufferSize;
  uint16_t _RXbufferpos;
};

extern Serial_2_Socket Serial2Socket;

#endif