/*
  ESP32 HTTPClient Example
  PVS 2/3
*/

#include <WiFi.h>
#include <HTTPClient.h>


const char* ssid = "Wokwi-GUEST";
const char* password = "";
/***************************************/
const int Relay1_Pin = 4;
const int Relay2_Pin = 2;
const int Relay3_Pin = 18;
const int Relay4_Pin = 19;
const int SW1_Pin = 14;
const int SW2_Pin = 12;
const int SW3_Pin = 27;
const int SW4_Pin = 26;

String s = " ";
int manualSW = 0;   // 0 : ไม่กด  1 :  กด
/**************************************/
// Google sc cript Ip and reguired credentials
String GOOGLE_SCRIPT_ID = "AKfycbyGWrhahjMqbbDnh4Htx5w0SP2TcnVOTRMo7ECFjfvyv3Ja2Wu5SDqmrDblI1dkPFQM";// change Google script ID
String GOOGLE_SCRIPT_URL = "https://script.google.com/macros/s/AKfycbz9vsScL3yPAR3eFw3CNalZgYQWX9d2Nv6TTjyOVxHaDFmb-81G4fEOSwAxi6M2pswY/exec";
String manualMode_GOOGLE_SCRIPT_URL = "https://script.google.com/macros/s/AKfycbyqwvjF6Vr4n3o837I_D5vHDh8oZ6-h6Y0r3HlWh1QCcb_8bfFQO2LSUCs2JLLs2mjj/exec";

unsigned long previousTime1 = millis();
long timeInterval1 = 10000;       //10 วินาที

// Object http form HTTPClient
  HTTPClient http;

void setup() {
  Serial.begin(115200);
  pinMode(Relay1_Pin, OUTPUT);
  pinMode(Relay2_Pin, OUTPUT);
  pinMode(Relay3_Pin, OUTPUT);
  pinMode(Relay4_Pin, OUTPUT);
  pinMode(SW1_Pin, INPUT_PULLUP);
  pinMode(SW2_Pin, INPUT_PULLUP);
  pinMode(SW3_Pin, INPUT_PULLUP);
  pinMode(SW4_Pin, INPUT_PULLUP);


  attachInterrupt(SW1_Pin, IO_INT_ISR1, RISING);
  attachInterrupt(SW2_Pin, IO_INT_ISR2, RISING);
  attachInterrupt(SW3_Pin, IO_INT_ISR3, RISING);  
  attachInterrupt(SW4_Pin, IO_INT_ISR4, RISING);

  WiFi.begin(ssid, password, 6);

  Serial.print("Connecting to WiFi");
  while (WiFi.status() != WL_CONNECTED) {
    delay(100);
    Serial.print(".");
  }

  Serial.print("OK! IP=");
  Serial.println(WiFi.localIP());  
}

void IO_INT_ISR1(){
    //Serial.println("SW1");
    digitalWrite(Relay1_Pin,!digitalRead(Relay1_Pin));
    if(!manualSW){
      http.end();
    }
    manualSW = 1;
}

void IO_INT_ISR2(){
    //Serial.println("SW2");
    digitalWrite(Relay2_Pin,!digitalRead(Relay2_Pin));
    if(!manualSW){
      http.end();
    }
    manualSW = 1;
}

void IO_INT_ISR3(){
    //Serial.println("SW3");
    digitalWrite(Relay3_Pin,!digitalRead(Relay3_Pin));
    if(!manualSW){
      http.end();
    }
    manualSW = 1;
}

void IO_INT_ISR4(){
    //Serial.println("SW4");
    digitalWrite(Relay4_Pin,!digitalRead(Relay4_Pin));
    if(!manualSW){
      http.end();
    }
    manualSW = 1;
}


void loop() {
  unsigned long currentTime = millis();

  if(currentTime - previousTime1 >= timeInterval1){
    previousTime1 = currentTime;
    dataLogger();
    controlRelay();
  }

  if(manualSW){
    manualSW = 0;
    manualMode();
    controlRelay();
  }

  delay(200);
}

void controlRelay(){
if(!manualSW){
    String R1 = s.substring(0, 1);
    String R2 = s.substring(3, 2);
    String R3 = s.substring(3, 2);
    String R4 = s.substring(3, 2);

    Serial.println(R1);
    Serial.println(R2);
  
    int relay_number1 = R1.toInt();
    int relay_number2 = R2.toInt();
    int relay_number3 = R2.toInt();
    int relay_number4 = R2.toInt();
  
    digitalWrite(Relay1_Pin,relay_number1);
    digitalWrite(Relay2_Pin,relay_number2);
    digitalWrite(Relay3_Pin,relay_number3);
    digitalWrite(Relay4_Pin,relay_number4);
}

}
void dataLogger(){
// Data to Send
  float string_temp = 10.00;
  float string_humi = 20.00;
  int string_lux = 30.00;
// URL & Data to Send  
  //String urlFinal= "https://script.google.com/macros/s/"+ GOOGLE_SCRIPT_ID + "/exec?FIELD1="+ string_temp +"&FIELD2="+ string_humi +"&FIELD3="+string_lux;
  String urlFinal= GOOGLE_SCRIPT_URL+"?FIELD1="+ string_temp +"&FIELD2="+ string_humi +"&FIELD3="+string_lux;
  Serial.print("Post data to spreadsheet!");
  Serial.println(urlFinal);
// Object http form HTTPClient
  //HTTPClient http;
// Connect to WebApp with URL
  unsigned long startTime = millis();
  http.begin(urlFinal.c_str());
  http.setFollowRedirects(HTTPC_STRICT_FOLLOW_REDIRECTS);
// Get HTTP status Code
  int httpcode = http.GET();
  Serial.print("HTTP status Code: ");
  Serial.println(httpcode);
  Serial.println(millis()-startTime);

// Getting response from webApp
  String payload;
  if (httpcode > 0){
    payload = http.getString();
    Serial.println("Payload : "+ payload);
    s = payload;
  }
  http.end();
}

void manualMode(){
bool Relay1 = digitalRead(Relay1_Pin);
bool Relay2 = digitalRead(Relay2_Pin);
bool Relay3 = digitalRead(Relay3_Pin);
bool Relay4 = digitalRead(Relay4_Pin);

String urlFinal= manualMode_GOOGLE_SCRIPT_URL+"?SW1="+ Relay1 +"&SW2="+ Relay2+"&SW3="+ Relay3+"&SW4="+ Relay4;
  Serial.print("Post data to spreadsheet!");
  Serial.println(urlFinal);
// Object http form HTTPClient
  //HTTPClient http;
// Connect to WebApp with URL
  http.begin(urlFinal.c_str());
  http.setFollowRedirects(HTTPC_STRICT_FOLLOW_REDIRECTS);
// Get HTTP status Code
  int httpcode = http.GET();
  Serial.print("HTTP status Code: ");
  Serial.println(httpcode);

// Getting response from webApp
  String payload;
  if (httpcode > 0){
    payload = http.getString();
    Serial.println("Payload : "+ payload);
    s = payload;
    }
  http.end();
  previousTime1 = millis();
}