brick

#include <LiquidCrystal_I2C.h>
LiquidCrystal_I2C Lcd(0x27, 16, 2);

#include <SPI.h>
#include <WiFi.h>

char ssid[] = "AESRO2-2.4G";
char password[] = "EA8TDKNFGE";

int status = WL_IDLE_STATUS;

WiFiClient client;

String serverReturn;

int currentPage = 0;
int lastPage = 1;
String page[]
{
  "Flashlight",
  "Message",
  "S.O.S"
};
void displayPage(int pageNumber)
{
  if(pageNumber > 2)
  {
     currentPage = 0;
  }
  else
  {
    currentPage = pageNumber;
  }

  Serial.println(currentPage);

  Lcd.clear();
  Lcd.print(page[currentPage]);

  Lcd.setCursor(0,1);
  Lcd.print("[Open]");
  Lcd.setCursor(10, 1);
  Lcd.print("[Next]");
}

unsigned long lastConnection;

bool isHome = true;

bool isMessage = false;
bool messageDidUpdate = false;
String currentMessage;
char alphabet[] = "ABCDEFGHGHIJKLMNOPQRSTUVQXYZ ";
int currentCursor;
int lastX = -1;
bool didSend;

bool flashlight;

String rawReturn;

void setup()
{
  Serial.begin(9600);

  pinMode(10, OUTPUT);
  pinMode(11, OUTPUT);
  pinMode(6, OUTPUT);
  pinMode(2, INPUT_PULLUP);
  pinMode(10, INPUT_PULLUP);
  pinMode(2, INPUT_PULLUP);

  Lcd.begin();

  Lcd.print("BrickOS V5.0.0");
  digitalWrite(6, HIGH);
  delay(300);
  digitalWrite(6, LOW);

  delay(1000);

  if(WiFi.status() == WL_NO_SHIELD)
  {
    Lcd.clear();
    Lcd.print("No wifi shield");

    while(true);
  }

  String fv = WiFi.firmwareVersion();
  if(fv != "1.1.0")
  {
    String secline = fv += "->1.1.0";
    Lcd.clear();
    Lcd.print("Firmware update");
    Lcd.setCursor(0,1);
    Lcd.print(secline);

    while(true);
  }

  while(status != WL_CONNECTED)
  {
    Lcd.clear();
    Lcd.print("Connecting to");
    Lcd.setCursor(0, 1);
    Lcd.print("network...");

    status = WiFi.begin(ssid, password);

    delay(3000);
  }

  Lcd.clear();
  Lcd.print("Connected to:");
  Lcd.setCursor(0, 1);
  Lcd.print(ssid);
  delay(1000);
}

void loop()
{
  if(lastPage != currentPage)
  {
    displayPage(currentPage);
  }
  lastPage = currentPage;

  if(millis() - lastConnection > 20000)
  {
    serverReturn = "";
    while(client.available()) {
      serverReturn += (char)client.read();
    }
    rawReturn = serverReturn;
    serverReturn = serverReturn.substring(serverReturn.indexOf("*") + 1, serverReturn.length());

    client.stop();
    if(client.connect("www.messagenr.esy.es", 80))
    {
      client.println("GET /msg.php?action=check&ID=1 HTTP/1.1");
      client.println("Host: messagenr.esy.es");
      client.println("Connection: close");
      client.println();
    }

    Serial.println(rawReturn);

    if(serverReturn != "false" && serverReturn != "\n\n" && rawReturn.indexOf("*") != 0)
    {
      digitalWrite(8, HIGH);

      Lcd.clear();
      Lcd.print("Message received!");

      digitalWrite(6, HIGH);
      delay(500);
      digitalWrite(6, LOW);

      delay(1000);

      Lcd.clear();
      Lcd.print(serverReturn);

      delay(5000);

      digitalWrite(8, LOW);

      displayPage(currentPage);
    }

    lastConnection = millis();
  }

  if(isHome)
  {
    if(digitalRead(11) == LOW)
    {
      Serial.println("Open");

      switch(currentPage)
      {
        case 0:
          if(!flashlight)
          {
            analogWrite(5, 255);
            analogWrite(3, 255);
            analogWrite(9, 255);

            flashlight = true;
          }
          else
          {
            analogWrite(5, 0);
            analogWrite(3, 0);
            analogWrite(9, 0);

            flashlight = false;
          }

          break;
        case 1:
          isHome = false;

          isMessage = true;

          break;
        case 2:
          analogWrite(5, 0);
          analogWrite(3, 0);
          analogWrite(9, 255);

          Lcd.clear();
          Lcd.print("Notifying Server...");

          client.stop();
          if(client.connect("www.messagenr.esy.es", 80))
          {
            client.println("GET /msg.php?action=send&ID=2&message=%23S.O.S%23 HTTP/1.1");
            client.println("Host: messagenr.esy.es");
            client.println("Connection: close");
            client.println();

            Lcd.clear();
            Lcd.print("Server notified");

            analogWrite(5, 0);
            analogWrite(3, 255);
            analogWrite(9, 0);

            delay(1000);

            analogWrite(5, 0);
            analogWrite(3, 0);
            analogWrite(9, 0);

            displayPage(currentPage);
          }
          else
          {
            Lcd.clear();
            Lcd.print("Failure");

            delay(1000);

            analogWrite(5, 0);
            analogWrite(3, 0);
            analogWrite(9, 0);

            displayPage(currentPage);
          }

          break;
      }
    }
    else if(digitalRead(10) == LOW)
    {
      currentPage++;

      Serial.println("Next");
    }
  }

  if(isMessage)
  {
    delay(300);

    if(!messageDidUpdate)
    {
      Lcd.clear();
      Lcd.print(currentMessage);
      Lcd.setCursor(0, 1);
      Lcd.print("[Send]");
      Lcd.setCursor(16 - 8, 1);
      Lcd.print("[Select]");

      messageDidUpdate = true;
    }

    if(digitalRead(2) == LOW)
    {
      currentCursor++;

      if(currentCursor > sizeof(alphabet) - 2)
      {
        currentCursor = 0;
      }

      Lcd.setCursor(lastX + 1, 0);
      Lcd.print(alphabet[currentCursor]);
    }

    if(digitalRead(10) == LOW)
    {
      currentMessage += alphabet[currentCursor];

      lastX++;

      digitalWrite(6, HIGH);
      delay(300);
      digitalWrite(6, LOW);
    }

    if(digitalRead(11) == LOW)
    {
      Serial.println(currentMessage);

      Lcd.clear();
      Lcd.print("Sending Message");
      Lcd.setCursor(0, 1);
      Lcd.print("Please Wait...");

      for(int i; i <= 51; i++)
      {
        if(!didSend)
        {
          client.stop();
          if(client.connect("www.messagenr.esy.es", 80))
          {
            client.println((String)"GET /msg.php?action=send&ID=2&message=" += currentMessage += "HTTP/1.1");
            client.println("Host: messagenr.esy.es");
            client.println("Connection: close");
            client.println();

            Lcd.clear();
            Lcd.print("Message Sent");

            delay(1000);

            didSend = true;

            break;
          }
        }

        delay(500);
      }

      if(!didSend)
      {
        Lcd.clear();
        Lcd.print("Failed");

        delay(1000);
      }

      didSend = false;
      currentCursor = 0;
      currentMessage = "";
      lastX = -1;
      messageDidUpdate = false;

      isMessage = false;
      isHome = true;

      displayPage(currentPage);
    }
  }

  delay(300);
}