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#include <CytronWiFiShield.h>
#include <CytronWiFiClient.h>
#include <CytronWiFiServer.h>
#include <SoftwareSerial.h>

const char *ssid = "alina";
const char *pass = "Bangang5592";
IPAddress ip(192, 168, 1 ,188);
ESP8266Server server(80);
int ledState = 0;
int led1State = 0;
const char htmlHeader[] = "HTTP/1.1 200 OK\r\n"
                        "Content-Type: text/html\r\n"
                        "Connection: close\r\n\r\n"
                        "<!DOCTYPE HTML>\r\n"
                        "<html>\r\n";

void setup() {
  pinMode(6, OUTPUT);
  pinMode(7, OUTPUT);
  // put your setup code here, to run once:
  Serial.begin(9600);
  while (!Serial) {
    ; // wait for serial port to connect. Needed for Leonardo only
  }

  if(!wifi.begin(2, 3))
  {
    Serial.println(F("Error talking to shield"));
    while(1);
  }
  Serial.println(wifi.firmwareVersion());
  Serial.print(F("Mode: "));Serial.println(wifi.getMode());// 1- station mode, 2- softap mode, 3- both
  Serial.println(F("Setup wifi config"));
  wifi.config(ip);
  Serial.println(F("Start wifi connection"));
  if(!wifi.connectAP(ssid, pass))
  {
    Serial.println(F("Error connecting to WiFi"));
    while(1);
  }
  Serial.print(F("Connected to "));Serial.println(wifi.SSID());
  Serial.println(F("IP address: "));
  Serial.println(wifi.localIP());
  wifi.updateStatus();
  Serial.println(wifi.status()); //2- wifi connected with ip, 3- got connection with servers or clients, 4- disconnect with clients or servers, 5- no wifi

  server.begin();
}

void loop() {
  // put your main code here, to run repeatedly:
  ESP8266Client client = server.available();

  if(client.available()>0)
  {
    String req = client.readStringUntil('\r');
    // First line of HTTP request looks like "GET /path HTTP/1.1"
    // Retrieve the "/path" part by finding the spaces
    int addr_start = req.indexOf(' ');
    int addr_end = req.indexOf(' ', addr_start + 1);
    if (addr_start == -1 || addr_end == -1) {
      Serial.print(F("Invalid request: "));
      Serial.println(req);
      return;
    }
    req = req.substring(addr_start + 1, addr_end);
    Serial.print(F("Request: "));
    Serial.println(req);
    client.flush();

    if(req.equals("/"))
    {

      client.print(htmlHeader);
      String htmlBody = "Hello from ESP8266 at ";
      htmlBody += "</html>\r\n\r\n";
      client.print(htmlBody);
    }
 //input location
    else if(req.equals("/analog"))
    {
      client.print(htmlHeader);


       String htmlBody = String(analogRead(A0));

      client.print(htmlBody);
    }
//output on location
    else if(req.equals("/on"))
    {
      client.print(htmlHeader);
      String htmlBody="Pin 6 is now ";
      htmlBody += "on";
      htmlBody += "</html>\r\n";
      client.print(htmlBody);
      ledState = 1;

  }

  //output off location
    else if(req.equals("/off"))
    {
      client.print(htmlHeader);
      String htmlBody="Pin 6 is now ";
      htmlBody += "off";
      htmlBody += "</html>\r\n";
      client.print(htmlBody);
      ledState = 0;

    }
    else if(req.equals("/onn"))
    {
      client.print(htmlHeader);
      String htmlBody="Pin 7 is now ";
      htmlBody += "on";
      htmlBody += "</html>\r\n";
      client.print(htmlBody);
      led1State = 1;

    }
        else if(req.equals("/offf"))
    {
      client.print(htmlHeader);
      String htmlBody="Pin 7 is now ";
      htmlBody += "off";
      htmlBody += "</html>\r\n";
      client.print(htmlBody);
      led1State = 0;

    }
    else
      client.print("HTTP/1.1 404 Not Found\r\n\r\n");

    client.stop();

  }
  digitalWrite(6, ledState);
  digitalWrite(7, led1State);
}