/*
  DHCP-based IP printer

  This sketch uses the DHCP extensions to the Ethernet library
  to get an IP address via DHCP and print the address obtained.
  using an Arduino WIZnet Ethernet shield.

  Circuit:
   Ethernet shield attached to pins 10, 11, 12, 13

  created 12 April 2011
  modified 9 Apr 2012
  by Tom Igoe
  modified 02 Sept 2015
  by Arturo Guadalupi

 */

#include <SPI.h>
#include <Ethernet.h>
#include "RRCS.h"

// Enter a MAC address for your controller below.
// Newer Ethernet shields have a MAC address printed on a sticker on the shield
byte mac[] = {
  0xDE, 0xAD, 0xBE, 0xEF, 0xFE, 0xED
};

constexpr int PIN_BTN_MUTE = A2;
constexpr int PIN_LED_RED = A0;

//const uint8_t RRCSServerIP[4] = {10,75,120,147};   // TRUNKNAV VM
//const uint8_t RRCSServerIP[4] = {192,168,192,247};    // Ben's laptop testing
const uint8_t RRCSServerIP[4] = {192,168,192,241};    // Ben's windows VM
const uint16_t RRCSServerPort = 8193;
const uint16_t BlinkMs = 1000;

EthernetClient client;

void ToggleVirtualKey() {
  if (client.connect(RRCSServerIP, RRCSServerPort)) {
    Serial.println("Connected.");

    client.println("POST / HTTP/1.1");
    client.print("Host: ");
    client.print(RRCSServerIP[0]); client.print(".");
    client.print(RRCSServerIP[1]); client.print(".");
    client.print(RRCSServerIP[2]); client.print(".");
    client.println(RRCSServerIP[3]);
    client.println("Content-Type: text/xml"); // Or other content type like application/json
    client.println("User-Agent: Ben's Silly Box");
    client.println("Connection: close");
    client.print("Content-Length: ");
    client.println(strlen(Data_PressVirtKey1OnBench_P));
    client.println();
    client.println(Data_PressVirtKey1OnBench);

    client.println();   // End of request

    while(client.available()) {
      Serial.write((char)client.read());
    }
    delay(50);
    client.stop();
    Serial.println();
    client.connect(RRCSServerIP, RRCSServerPort);
    //delay(20);

    client.println("POST / HTTP/1.1");
    client.print("Host: ");
    client.print(RRCSServerIP[0]); client.print(".");
    client.print(RRCSServerIP[1]); client.print(".");
    client.print(RRCSServerIP[2]); client.print(".");
    client.println(RRCSServerIP[3]);
    client.println("Content-Type: text/xml"); // Or other content type like application/json
    client.println("User-Agent: Ben's Silly Box");
    client.println("Connection: close");
    client.print("Content-Length: ");
    client.println(strlen(Data_ReleaseVirtKey1OnBench_P));
    client.println();
    client.println(Data_ReleaseVirtKey1OnBench);

    client.println();   // End of request

    while(client.available()) {
      Serial.write((char)client.read());
    }
    client.stop();
    Serial.println();

    Serial.println("Sent.");
  } else {
    Serial.println("Couldn't reach RRCS Server!");
  }
}





bool MuteState = false;
bool EthNoLink = true;

void setup() {

  pinMode (PIN_BTN_MUTE, INPUT_PULLUP);
  // Blink once on startup
  pinMode(PIN_LED_RED, OUTPUT);
  digitalWrite(PIN_LED_RED, HIGH);
  delay(100);
  digitalWrite(PIN_LED_RED, LOW);

  // You can use Ethernet.init(pin) to configure the CS pin
  Ethernet.init(10);  // Most Arduino shields
  //Ethernet.init(5);   // MKR ETH Shield
  //Ethernet.init(0);   // Teensy 2.0
  //Ethernet.init(20);  // Teensy++ 2.0
  //Ethernet.init(15);  // ESP8266 with Adafruit FeatherWing Ethernet
  //Ethernet.init(33);  // ESP32 with Adafruit FeatherWing Ethernet

  // Open serial communications and wait for port to open:
  Serial.begin(115200);
  while (!Serial) {
    ; // wait for serial port to connect. Needed for native USB port only
  }

  // start the Ethernet connection:
  Serial.println("Initialize Ethernet with DHCP:");
  if (Ethernet.begin(mac) == 0) {
    Serial.println("Failed to configure Ethernet using DHCP");
    if (Ethernet.hardwareStatus() == EthernetNoHardware) {
      Serial.println("Ethernet shield was not found.  Sorry, can't run without hardware. :(");
    } else if (Ethernet.linkStatus() == LinkOFF) {
      Serial.println("Ethernet cable is not connected.");
    }
    Serial.println("Failed Eth setup. Retrying later.");
  } else {
    EthNoLink = false;
  }
  // print your local IP address:
  Serial.print("My IP address: ");
  Serial.println(Ethernet.localIP());
}

void loop() {
  digitalWrite(PIN_LED_RED, MuteState && ((millis() / BlinkMs) % 2));


  if (digitalRead(PIN_BTN_MUTE) == LOW) {
    // Mute action.
    MuteState = !MuteState;

    Serial.println(MuteState ? "Muted." : "Unmuted.");
    
    // Lazy debounce is best debounce
    delay(50);
    while (digitalRead(PIN_BTN_MUTE) == LOW) delay(100);

    ToggleVirtualKey();
  }

  if (EthNoLink) {
    Serial.println("Retrying Eth Setup...");
    if (Ethernet.begin(mac) == 0) {
      Serial.println("Failed to configure Ethernet using DHCP");
      if (Ethernet.hardwareStatus() == EthernetNoHardware) {
        Serial.println("Ethernet shield was not found.  Sorry, can't run without hardware. :(");
      } else if (Ethernet.linkStatus() == LinkOFF) {
        Serial.println("Ethernet cable is not connected.");
      }
    Serial.println("Failed Eth Setup.");
    } else {
      EthNoLink = false;
    }
  }


  switch (Ethernet.maintain()) {
    case 1:
      //renewed fail
      Serial.println("Error: renewed fail");
      break;

    case 2:
      //renewed success
      Serial.println("Renewed success");
      //print your local IP address:
      Serial.print("My IP address: ");
      Serial.println(Ethernet.localIP());
      digitalWrite(PIN_LED_RED, HIGH);
      break;

    case 3:
      //rebind fail
      Serial.println("Error: rebind fail");
      break;

    case 4:
      //rebind success
      Serial.println("Rebind success");
      //print your local IP address:
      Serial.print("My IP address: ");
      Serial.println(Ethernet.localIP());
      break;

    default:
      //nothing happened
      break;
  }
}