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#include <WiFi.h>
#include <WiFi.h>
#include <WiFiClient.h>
#include <WebServer.h>
#include <Wire.h>
#include <SPI.h>
#include <DHT.h>
#include "CORE_BME280_SPI.h"


//BME280
//#define SENSE_SCK 5;// Set Serial Clock
//#define SENSE_MISO 2;// Set Serial Data Out
//#define SENSE_MOSI 4;// Set Serial Data In
//#define SENSE_CS 19 ;// Set Chip Select
 BME280_SPI bme(19,4,2,5);


// SHT25 I2C address is 0x40(64)
#define sht 0x40

//DHT11
#define DHTPIN 16
DHT dht11(DHTPIN,DHT11,15);

//DHT22
#define DHTPIN 17
DHT dht22(DHTPIN,DHT22,15);

WebServer webServer(80);
const char* ssid1 ;
const char* password1 ;
String apiKey ;
const char* server = "api.thingspeak.com";
bool connectedWifi = false;

WiFiClient client;


//main page
void handleLogin(){
  //String msg;
  if (webServer.hasArg("USERNAME") && webServer.hasArg("PASSWORD")){
    if (webServer.arg("USERNAME") == "admin" &&  webServer.arg("PASSWORD") == "12345678" ){
      webServer.sendHeader("Location","/");
      webServer.sendHeader("Cache-Control","no-cache");
      webServer.sendHeader("Set-Cookie","ESPSESSIONID=1");
      webServer.send(301);
      Serial.println("Log in Successful");
      String ssidL = webServer.arg("SSID");
      String passwordL = webServer.arg("PASSWORD");
      apiKey = webServer.arg("API");
      ssid1 = ssidL.c_str();
      password1 =passwordL.c_str();
  Serial.println("Data recived ");
  Serial.println(ssid1);
  Serial.println(password1);
  Serial.println(apiKey);
  WiFi.mode(WIFI_STA);
  WiFi.begin(ssid1, password1);
  while ( WiFi.status() != WL_CONNECTED )
  {
    vTaskDelay( 250 /portTICK_PERIOD_MS );
    Serial.print( "." );
  }
  Serial.println("Connected to Wifi" );
  connectedWifi=true;
      return;
    }
  //msg = "Wrong username/password! try again.";
  Serial.println("Log in Failed");
  }
  String content = "<html><body><form action='/' method='POST'>Put wifi creditials here and thingSprark Api<br>";
  content += "Ssid:<input type='text' name='SSID' placeholder='ssid'><br>";
  content += "User:<input type='text' name='USERNAME' placeholder='username'><br>";
  content += "Password:<input type='password' name='PASSWORD' placeholder='password'><br>";
  content += "Api:<input type='text' name='API' placeholder='api'><br>";
  content += "<input type='submit' name='SUBMIT' value='Submit'></form><br>";
  //content += "<input type='submit' name='SUBMIT' value='Submit'></form>" + msg + "<br>";
  content += "You also can go <a href='/inline'>here</a></body></html>";
  webServer.send(200, "text/html", content);

}

//no need authentification
void handleNotFound(){
  String message = "Page Not Found\n\n";
  webServer.send(404, "text/plain", message);
}
const char *ssid = "ESP32ap";
const char *password = "12345678";

void setup() {
  Wire.begin();
  Serial.begin(115200);
  //sht
  Wire.beginTransmission(sht);
  Wire.endTransmission();
  delay(300);
  //dht
  dht11.begin();
  dht22.begin();
  //bme
  if (!bme.begin()) {
Serial.println("Error: BME280 sensor, Check Wiring > ");
while (1);
}

bme.setTempCal(-1);//Set Sensor was reading high so offset by 1 degree C

//wifi
  Serial.println();
  Serial.print("Configuring access point...");
  /* You can remove the password parameter if you want the AP to be open. */
  WiFi.softAP(ssid, password);

  IPAddress myIP = WiFi.softAPIP();
  Serial.print("AP IP address: ");
  Serial.println(myIP);


  webServer.on("/", handleLogin);
  ;

  webServer.onNotFound(handleNotFound);
  webServer.begin();
  Serial.println("HTTP server started");


}
// webServer.handleClient();
// if(connectedWifi)


void loop()
{
  //read dht21
  float hum11 = dht11.readHumidity();
  float temp11 = dht11.readTemperature();
  if (isnan(hum11) || isnan(temp11)) {
  Serial.println("Failed to read from DHT11 sensor!");
  }
  else{
    Serial.print("DHT11 temp= ");
    Serial.println(temp11);
    Serial.print("DHT11 hum= ");
    Serial.println(hum11);
  }
  //read dht22
  float hum22 = dht22.readHumidity();
  float temp22 = dht22.readTemperature();
  if (isnan(hum22) || isnan(temp22)) {
  Serial.println("Failed to read from DHT22 sensor!");
  }
  else{
    Serial.print("DHT22 temp= ");
    Serial.println(temp22);
    Serial.print("DHT22 hum= ");
    Serial.println(temp22);
  }
  //read bme
  bme.readSensor();
   Serial.print("Bme280 hum= ");
Serial.println(bme.getHumidity()); Serial.print(" %\t\t");
Serial.print("Bme280 temp= ");
Serial.println(bme.getTemperature_C()); Serial.print(" *C\t");

//sht 25
 unsigned int data[2];

  Wire.beginTransmission(sht);
  //Send humidity measurement command
  Wire.write(0xF5);
  Wire.endTransmission();
  delay(500);

  // Request 2 bytes of data
  Wire.requestFrom(sht, 2);
  // Read 2 bytes of data to get humidity
  if(Wire.available() == 2)
  {
    data[0] = Wire.read();
    data[1] = Wire.read();
  }

  // Convert the data
  float humidity  = ((data[0] * 256.0) + data[1]);
  humidity = ((125 * humidity) / 65536.0) - 6;

  Wire.beginTransmission(sht);
  // Send temperature measurement command
  Wire.write(0xF3);
  Wire.endTransmission();
  delay(500);

  // Request 2 bytes of data
  Wire.requestFrom(sht, 2);

  // Read 2 bytes of data for temperature
  if(Wire.available() == 2)
  {
    data[0] = Wire.read();
    data[1] = Wire.read();
  }

  // Convert the data
  float temp  = ((data[0] * 256.0) + data[1]);
  float celsTemp = ((175.72 * temp) / 65536.0) - 46.85;
  float fahrTemp = celsTemp * 1.8 + 32;

  // Output data to serial monitor
   Serial.print("SHT25 Humidity : ");
  Serial.println(humidity);
  Serial.print("SHT25 Celsius : ");
  Serial.println(celsTemp);
  delay(30000);
}