#include <WiFi.h>
#include <FirebaseESP32.h>
#include "DHT.h"

#include <addons/RTDBHelper.h>


// #define WIFI_SSID "5P26_2.4Ghz"
// #define WIFI_PASSWORD "luangay1"

#define WIFI_SSID "Wokwi-GUEST"
#define WIFI_PASSWORD ""

#define FIREBASE_HOST "https://esp32-51b05-default-rtdb.firebaseio.com"
#define FIREBASE_AUTH "pFOw8cuDHnyYHrEtZt5BWQGbaWKzaLOW4k8IEkhP"

#define DHTPIN 27
#define DHTTYPE DHT22
#define BUTTON_PIN 33
#define LED_PIN 13

DHT dht(DHTPIN, DHTTYPE);
FirebaseData fbdo;


unsigned long dataMillis = 0;

int led_state = LOW;    // the current state of LED
int button_state;       // the current state of button
int last_button_state;  // the previous state of button


void TaskBlink(void *pvParameters);
void TaskAnalogReadA3(void *pvParameters);

void setup() {


  Serial.begin(115200);
  pinMode(LED_PIN, OUTPUT);
  pinMode(BUTTON_PIN, INPUT_PULLUP);


  button_state = digitalRead(BUTTON_PIN);

  dht.begin();

  WiFi.begin(WIFI_SSID, WIFI_PASSWORD);
  Serial.print("Connecting to Wi-Fi");
  while (WiFi.status() != WL_CONNECTED) {
    Serial.print(".");
    delay(300);
  }
  Serial.println();
  Serial.print("Connected with IP: ");
  Serial.println(WiFi.localIP());
  Serial.println();

  Serial.printf("Firebase Client v%s\n\n", FIREBASE_CLIENT_VERSION);


  // Now set up two tasks to run independently.
  xTaskCreate(
    TaskButton, "TaskButton"  // A name just for humans
    ,
    2048  // This stack size can be checked & adjusted by reading the Stack Highwater
    ,
    NULL, 2  // Priority, with 3 (configMAX_PRIORITIES - 1) being the highest, and 0 being the lowest.
    ,
    NULL);

  xTaskCreate(
    TaskFirebase, "Firebase", 15000  // Stack size
    ,
    NULL, 1  // Priority
    ,
    NULL);

  // Now the task scheduler, which takes over control of scheduling individual tasks, is automatically started.
}

void loop() {
}

void read_data() {
  float h = dht.readHumidity();
  float t = dht.readTemperature();  // or dht.readTemperature(true) for Fahrenheit

  if (isnan(h) || isnan(t)) {
    Serial.println("Failed to read from DHT sensor!");}

    if (millis() - dataMillis > 3000) {
      Serial.printf("Nhiet do: %f\n", t);
      Serial.printf("Do am: %f\n", h);
      Serial.printf("Update nhiet do %s\n", Firebase.setFloat(fbdo, "/data/nhietdo", t) ? "Ok" : fbdo.errorReason().c_str());
      Serial.printf("Update do am %s\n", Firebase.setFloat(fbdo, "/data/doam", h) ? "Ok" : fbdo.errorReason().c_str());
      dataMillis = millis();
    }
  }

  void TaskButton(void *pvParameters)  // This is a task.
  {
    (void)pvParameters;



    for (;;)  // A Task shall never return or exit.
    {
      last_button_state = button_state;        // save the last state
      button_state = digitalRead(BUTTON_PIN);  // read new state

      if (last_button_state == HIGH && button_state == LOW) {
        Serial.println("The button is pressed");

        // toggle state of LED
        led_state = !led_state;
        digitalWrite(LED_PIN, led_state);
      }
      if (last_button_state == LOW && button_state == HIGH) {
        led_state = 0;
        digitalWrite(LED_PIN, led_state);
      }
      vTaskDelay(100);  // one tick delay (15ms) in between reads for stability
    }
  }

  void TaskFirebase(void *pvParameters)  // This is a task.
  {
    (void)pvParameters;

    Firebase.begin(FIREBASE_HOST, FIREBASE_AUTH);
    Firebase.reconnectWiFi(true);

    Firebase.setReadTimeout(fbdo, 1000 * 60);
    Firebase.setwriteSizeLimit(fbdo, "tiny");

    while (1) {

      read_data();
      vTaskDelay(100);

      // timer.run();
    }
  }