#include <WiFi.h>
#include <Firebase_ESP_Client.h>
#include "addons/TokenHelper.h"
#include "addons/RTDBHelper.h"

#define WIFI_SSID "Wokwi-GUEST"
#define WIFI_PASSWORD ""
#define API_KEY "AIzaSyDsMFpRDmwu5aCutp3MwNY3h66Ut64GFxo"
#define DATABASE_URL "https://esp32-fb-7a6d7-default-rtdb.asia-southeast1.firebasedatabase.app/"

#define LED1_PIN 12
#define LED2_PIN 14
#define LDR_PIN 36

FirebaseData fbdo;
FirebaseAuth auth;
FirebaseConfig config;

unsigned long SendDataPrevMillis = 0;
bool signupOK = false;
int ldrData = 0;
float voltage = 0.0;


void setup() {
  // put your setup code here, to run once:
  Serial.begin(115200);
  WiFi.begin(WIFI_SSID,WIFI_PASSWORD);
  Serial.print("Connecting to wifi");
  while(WiFi.status() != WL_CONNECTED)
  {
    Serial.print(".");delay(300);
  }
  Serial.println();
  Serial.print("Connected with IP: ");
  Serial.print(WiFi.localIP());
  Serial.println();

  config.api_key = API_KEY;
  config.database_url = DATABASE_URL;
  if(Firebase.signUp(&config, &auth, "","")){
    Serial.println("Sign up OK");
    signupOK = true;
  }else{
    Serial.printf("%s\n",config.signer.signupError.message.c_str());
  }
  config.token_status_callback = tokenStatusCallback;
  Firebase.begin(&config, &auth);
  Firebase.reconnectWiFi(true);
}

void loop() {
  if(Firebase.ready() && signupOK && (millis()-SendDataPrevMillis>5000 || SendDataPrevMillis == 0)){
    SendDataPrevMillis = millis();
  }
  ldrData = analogRead(LDR_PIN);
  voltage = (float)analogReadMilliVolts(LDR_PIN)/1000;
  if(Firebase.RTDB.setInt(&fbdo,"Sensor/ldr_data", ldrData)){
    Serial.println();Serial.print(ldrData);
    Serial.print("Successfully saved to: " + fbdo.dataPath());
    Serial.println("("+ fbdo.dataType() +")");
  }else{
    Serial.println("Failed: "+ fbdo.errorReason());
  }
}