/*
 modified 12 Aug 2013
 by Soohwan Kim (suhwan@wiznet.co.kr)

 - 10 Apr. 2015
 Added support for Arduino Ethernet Shield 2
 by Arduino.org team
 
 */
#ifndef ethernet_h
#define ethernet_h

#include <inttypes.h>
#include "utility/w5500.h"
#include "IPAddress.h"
#include "EthernetClient.h"
#include "EthernetServer.h"
#include "Dhcp.h"



class EthernetClass {
private:
  IPAddress _dnsServerAddress;
  char* _dnsDomainName;
  char* _hostName;
  DhcpClass* _dhcp;
  
  // KH add to work with new func void MACAddress(uint8_t *mac_address); and SinricPro v2.5.1+
  uint8_t _mac_address[6] ={0,};
  //////
  
public:
  uint8_t w5500_cspin;

  static uint8_t _state[MAX_SOCK_NUM];
  static uint16_t _server_port[MAX_SOCK_NUM];

  EthernetClass() { _dhcp = NULL; w5500_cspin = 10; }
  void init(uint8_t _cspin = 10) { w5500_cspin = _cspin; }

#if defined(WIZ550io_WITH_MACADDRESS)
  // Initialize function when use the ioShield serise (included WIZ550io)
  // WIZ550io has a MAC address which is written after reset.
  // Default IP, Gateway and subnet address are also writen.
  // so, It needs some initial time. please refer WIZ550io Datasheet in details.
  int begin(void);
  void begin(IPAddress local_ip);
  void begin(IPAddress local_ip, IPAddress dns_server);
  void begin(IPAddress local_ip, IPAddress dns_server, IPAddress gateway);
  void begin(IPAddress local_ip, IPAddress dns_server, IPAddress gateway, IPAddress subnet);
#else
  // Initialize the Ethernet shield to use the provided MAC address and gain the rest of the
  // configuration through DHCP.
  // Returns 0 if the DHCP configuration failed, and 1 if it succeeded
  int begin(uint8_t *mac_address);
  void begin(uint8_t *mac_address, IPAddress local_ip);
  void begin(uint8_t *mac_address, IPAddress local_ip, IPAddress dns_server);
  void begin(uint8_t *mac_address, IPAddress local_ip, IPAddress dns_server, IPAddress gateway);
  void begin(uint8_t *mac_address, IPAddress local_ip, IPAddress dns_server, IPAddress gateway, IPAddress subnet);

#endif
  
  int maintain();
  
  // KH add to report link status
  uint8_t       link();           // returns the linkstate, 1 = linked, 0 = no link
  const char*   linkReport();     // returns the linkstate as a string
  //////

  // KH add to have similar function to Ethernet lib
  // Certainly we can use void macAddress(uint8_t mac[]) to read from W5x00.
  void MACAddress(uint8_t *mac_address)
  {
    memcpy(mac_address, _mac_address, sizeof(_mac_address));
  }
  //////

  IPAddress localIP();
  IPAddress subnetMask();
  IPAddress gatewayIP();
  IPAddress dnsServerIP();
  char* dnsDomainName();
  char* hostName();

  friend class EthernetClient;
  friend class EthernetServer;
};

extern EthernetClass Ethernet;

#endif