/**
   ESP32 + DHT22 Example for Wokwi
   
   https://wokwi.com/arduino/projects/322410731508073042
*/

#include <WiFi.h>
#include <WiFiMulti.h>
#define LED 2
#include <SimpleDHT.h>
WiFiMulti wifiMulti;
WiFiClient wifiClient;
#include "DHTesp.h"

const int pinBuz = 12;
const int dash = 500;
const int dot = 200;
void connectWiFi() {
  Serial.print("MAC: ");
  Serial.println(WiFi.macAddress());

  // while (wifiMulti.run() != WL_CONNECTED) {
  //   delay(250);
  //   Serial.print(".");
  //   digitalWrite(pinLED, !digitalRead(pinLED));
  // }

  // digitalWrite(pinLED, HIGH);

  Serial.println();
  Serial.println();
  Serial.print("Connected to ");
  Serial.println(WiFi.SSID());
  Serial.print("IP address: ");
  Serial.println(WiFi.localIP());
}

const int DHT_PIN = 15;
// Button
DHTesp dhtSensor;
volatile boolean THReady = false;

void read_DHT11_1() {
  TempAndHumidity  data = dhtSensor.getTempAndHumidity();
  
  THReady = true;
}

const char* TS_server = "api.thingspeak.com";
const char* TS_write_key = "ISEZNANLZDIY8ZWN";

const int p_button = 23;
volatile int n_presses = 0;


//button interrupt
int led_state=1;

void IRAM_ATTR ISR_button() {
  n_presses++;
  // pressed = true;


  led_state = !led_state;
  digitalWrite(LED, led_state);
}

//timer1 

const int p_LED1 = 2;

long t_blink_1 = 0; //time last blinked
long T_blink_1 = 250; //period of blink

//***DHT11 Section
#include <SimpleDHT.h>
SimpleDHT11 dht11_1;

//read DHT11 every 2 sec
const int p_DHT11_1 = 4;

long t_dht11_1 = 0;
long T_dht11_1 = 2*1000;

//update thingspeak every 20 sec
long t_TS_1 = 0;
long T_TS_1 = 20*1000;

//timer 2
#include <Ticker.h>

//blink LED every 250ms
const int p_LED2 = 2;

long T_blink_2 = 250; //period of blink
Ticker tk_TH;

//***DHT11 Section
#include <SimpleDHT.h>
SimpleDHT11 dht11_2;

//read DHT11 every 2 sec
const int p_DHT11_2 = 4;

long T_dht11_2 = 2*1000;
Ticker tk_dht11_2;

//update thingspeak every 17 sec
long t_TS_2 = 0;
long T_TS_2 = 17*1000;

void setup() {
  Serial.begin(115200);
  //Button
  
  pinMode(pinBuz, OUTPUT);
  dhtSensor.setup(DHT_PIN, DHTesp::DHT22);
  pinMode(p_button, INPUT_PULLUP);
  attachInterrupt(p_button, ISR_button, FALLING);
  
  //timer1
   delay(10);
  Serial.println("Busy Wait Demo");

  pinMode(LED, OUTPUT);

  //timer 2
  pinMode(p_LED2, OUTPUT);

  //ticker read every 2 seconds
  tk_TH.attach_ms(T_dht11_1, read_DHT11_1);
  // tk_dht11_2.attach_ms(T_dht11_2, read_DHT11_2);
  WiFi.mode(WIFI_MODE_STA);
  wifiMulti.addAP("APU-MYDEVICES");
  wifiMulti.addAP("Wokwi-GUEST");
  wifiMulti.addAP("Waseem", "waseem");


  Serial.println("Connecting...");
  connectWiFi();
}

long t_now_1;
long t_now_2;

void loop() {
  //button
  
 
  delay(1000);
  char message[256];
  int i_msg = Serial.readBytesUntil('\n', message, 255);
           // wait for a second
  
  for (int i =0; i < i_msg; i++){
    char ch = message[i];
  
    if(ch == '-'){
    digitalWrite(LED_BUILTIN, HIGH);// turn the LED on (HIGH is the voltage level)
  digitalWrite(pinBuz, HIGH);
 // Serial.println("ON");
  delay(dash);                       // wait for a second
  digitalWrite(LED_BUILTIN, LOW);    // turn the LED off by making the voltage LOW
  digitalWrite(pinBuz, LOW);
 // Serial.println("OFF");
    //char ch = message[i];
    Serial.print(ch);
    delay(dash); 
   }
   
  if(ch == '.')
  {
    digitalWrite(LED_BUILTIN, HIGH);// turn the LED on (HIGH is the voltage level)
  digitalWrite(pinBuz, HIGH);
  //Serial.println("ON");
  delay(dot);                       // wait for a second
  digitalWrite(LED_BUILTIN, LOW);    // turn the LED off by making the voltage LOW
  digitalWrite(pinBuz, LOW);
 // Serial.println("OFF");
   // char ch = message[i];
    Serial.print(ch);
    delay(dot); 
  }
}
  if (THReady) {
    TempAndHumidity  data = dhtSensor.getTempAndHumidity();
  Serial.println("Temp: " + String(data.temperature, 2) + "°C");
  Serial.println("Humidity: " + String(data.humidity, 1) + "%");
  Serial.println("---");
  delay(1000);
    THReady = false;

    //timer1 
    t_now_1 = millis();

  // if (t_now_1 - t_blink_1 >= T_blink_1) {
  //   digitalWrite(p_LED1, !digitalRead(p_LED1));
  //   Serial.println("BLINK");
  //   t_blink_1 = t_now_1;
  // }

  //update to thingspeak here
  if (t_now_1 - t_dht11_1 >= T_dht11_1) { 
    read_DHT11_1();
      

   

  //  int buttonLevel=digitalRead(pinButton);

   delay(1000); 

 // put your main code here, to run repeatedly:

  //  long t_now = millis();
  //  if (t_now - t_last_TS >= T_TS_update) {
  //    t_last_TS = t_now;

//  buttonLevel = digitalRead(pinButton);
//   Serial.print("Button: ");
//   Serial.println(buttonLevel);

  if (wifiClient.connect(TS_server, 80)) {
    String getStr = String("/update?api_key=") +
              TS_write_key +
              "&field1=" + String(data.temperature, 2) + "°C" + 
              "&field2=" + String(data.humidity, 1) + "%";

// Serial.println("Temp: " + String(data.temperature, 2) + "°C");
//   Serial.println("Humidity: " + String(data.humidity, 1) + "%");
    String htmlStr = String("GET ") + getStr + " HTTP/1.1\n" +
                     "Host: " + TS_server + "\n" +
                     "Connection: close\n\n";

    // String postStr = String(TS_write_key) +
    //                  "&field1=" + buttonLevel + "&field2="
    //          + tempC
    //          + "&field3="
    //          + humPct
    //        + 
    //                  "\r\n\r\n";
    // String htmlStr = String("POST /update HTTP/1.1\n") +
    //                  "Host: " + TS_server + "\n" +
    //                  "Connection: close\n" +
    //                  "X-THINGSPEAKAPIKEY: " + TS_write_key + "\n" +
    //                  "Content-Type: application/x-www-form-urlencoded\n" +
    //                  "Content-Length: " + postStr.length() + "\n\n" +
    //                  postStr;

    wifiClient.print(htmlStr);
  }

  //delay(T_TS_update);

  //  }
   t_dht11_1 = t_now_1;
  }
}
//timer1
byte temperature_1 = 0;
byte humidity_1 = 0;

}




//timer2
// void update_blink() {
//   digitalWrite(p_LED2, !digitalRead(p_LED2));
//   Serial.println("BLINK");
// }

byte temperature_2 = 0;
byte humidity_2 = 0;

// void read_DHT11_2() {
//   int err;
//   err = dht11_2.read(p_DHT11_2, &temperature_2, &humidity_2, NULL);
//   if (err) {
//     Serial.print("Read DHT11_2 failed, err=");
//     Serial.println(err);
//   } else {
//     Serial.print("Temp = ");
//     Serial.print(temperature_2);
//     Serial.print(", Humidity_2 = ");
//     Serial.print(humidity_2);
//     Serial.println("%");
//   }
//   Serial.println("Read DHT11_2");
// }

// void update_TS_2() {
//   Serial.println("Update ThingSpeak");
// }

//button interrupt