#include <WiFi.h>
#include "DHTesp.h"
#include "ThingSpeak.h"
#include "AiEsp32RotaryEncoder.h"
#include "Arduino.h"

const int DHT_PIN = 15;
const int LED_PIN = 13;
const char* WIFI_NAME = "Wokwi-GUEST";
const char* WIFI_PASSWORD = "";
const int myChannelNumber =2610074;
const char* myApiKey = "UD6EQ55AQ3FF0U9V";
const char* server = "api.thingspeak.com";
 
#define ROTARY_DT_PIN 23
#define ROTARY_CLK_PIN 22
#define ROTARY_SW_PIN 21
#define ROTARY_VCC_PIN -1
#define ROTARY_STEPS 4

DHTesp dhtSensor;
WiFiClient client;

int Trig_pin =5;
int Echo_pin =18;
long duration;
float Speed_of_sound =0.034;
float dist_in_cm;

//instead of changing here, rather change numbers above
AiEsp32RotaryEncoder rotaryEncoder = AiEsp32RotaryEncoder(ROTARY_DT_PIN, ROTARY_CLK_PIN, ROTARY_SW_PIN, ROTARY_VCC_PIN, ROTARY_STEPS);
 
void rotary_onButtonClick()
{
    static unsigned long lastTimePressed = 0; // Soft debouncing
    if (millis() - lastTimePressed < 500)
    {
            return;
    }
    lastTimePressed = millis();
    Serial.print("button pressed ");
    Serial.print(millis());
    Serial.println(" milliseconds after restart");
}
 
void rotary_loop()
{
    //dont print anything unless value changed
    if (rotaryEncoder.encoderChanged())
    {
            Serial.print("Value: ");
            Serial.println(rotaryEncoder.readEncoder());
            digitalWrite(LED_PIN, HIGH);
            delay(1000); 
    }
    if (rotaryEncoder.isEncoderButtonClicked())
    {
            rotary_onButtonClick();
    }
    digitalWrite(LED_PIN, LOW);
}
 
void IRAM_ATTR readEncoderISR()
{
    rotaryEncoder.readEncoder_ISR();
}

void setup() {
  Serial.begin(115200);
  pinMode(Trig_pin, OUTPUT);
  pinMode(Echo_pin,INPUT);
  dhtSensor.setup(DHT_PIN, DHTesp::DHT22);
  pinMode(LED_PIN, OUTPUT);
  WiFi.begin(WIFI_NAME, WIFI_PASSWORD);
  while (WiFi.status() != WL_CONNECTED){
    delay(1000);
    Serial.println("Wifi not connected");
  }
  Serial.println("Wifi connected !");
  Serial.println("Local IP: " + String(WiFi.localIP()));
  WiFi.mode(WIFI_STA);
  ThingSpeak.begin(client);
    //we must initialize rotary encoder
  rotaryEncoder.begin();
  rotaryEncoder.setup(readEncoderISR);
  //set boundaries and if values should cycle or not
  //in this example we will set possible values between 0 and 1000;
  bool circleValues = false;
  rotaryEncoder.setBoundaries(0, 1000, circleValues); //minValue, maxValue, circleValues true|false (when max go to min and vice versa)
 
  //rotaryEncoder.disableAcceleration(); //acceleration is now enabled by default - disable if you dont need it
  rotaryEncoder.setAcceleration(250); //or set the value - larger number = more accelearation; 0 or 1 means disabled acceleration
}

void loop() {
  rotary_loop();
  delay(50); 
  digitalWrite(Trig_pin, LOW);
  delayMicroseconds(2);
  digitalWrite(Trig_pin, HIGH);
  delayMicroseconds(10);
  digitalWrite(Trig_pin,LOW);

  duration =pulseIn(Echo_pin,HIGH);

  dist_in_cm=duration*Speed_of_sound/2;
  Serial.print("distance in cm :");
  Serial.println(dist_in_cm);

  TempAndHumidity  data = dhtSensor.getTempAndHumidity();
  ThingSpeak.setField(1,data.temperature);
  ThingSpeak.setField(2,data.humidity);
  ThingSpeak.setField(3,dist_in_cm);
  ThingSpeak.setField(4,rotaryEncoder.readEncoder());
  if (data.temperature > 35 || data.temperature < 12 || data.humidity > 70 || data.humidity < 40) {
    digitalWrite(LED_PIN, HIGH);
  }else{
    digitalWrite(LED_PIN, LOW);
  }
  
  int x = ThingSpeak.writeFields(myChannelNumber,myApiKey);
  
  Serial.println("Value: " + String(rotaryEncoder.readEncoder(), 4) + "pcs");
  Serial.println("Distance: " + String(dist_in_cm, 3) + "cm");
  Serial.println("Temp: " + String(data.temperature, 2) + "°C");
  Serial.println("Humidity: " + String(data.humidity, 1) + "%");

  if(x == 200){
    Serial.println("Data pushed successfull");
  }else{
    Serial.println("Push error" + String(x));
  }
  Serial.println("---");

  delay(1000);
}