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

#define DHTTYPE DHT22

const char* ssid = "Wokwi-GUEST";
const char* password = "";

//unsigned long channelID = 1793981;
//const char * writeAPIkey = "FQW3H59RT95PQ37B";
const char * API_KEY = "AIzaSyCIOe-Oe8-o0K8_kNjQ5fHVP9lZh-HwXFc";
const char * USER_EMAIL = "[email protected]";
const char * PASSWORD = "yoyomama";
const char * DATABASE_URL = "https://esp-32-wokwi-default-rtdb.asia-southeast1.firebasedatabase.app/";
const char * USER_ID = "fLi5DqDL43Xc9SpD1vSPbdKlXtw1";

const int DHTPIN = 15;
unsigned long delayTime = 30000;
//float tempC = 60;
//float humidity = 70;
boolean attempt = true; // attempt to send data, thingspeak only recieves data with 30 second intervals
float lastTime;

DHTesp dht;
WiFiClient client;
FirebaseData fbdo;
FirebaseAuth auth;
FirebaseConfig config;

String uid;
String tempPath;
String humPath
String pressPath;

void setup() {
  // put your setup code here, to run once:
  Serial.begin(9600);
  dht.setup(DHTPIN, DHTesp::DHT22);
  WiFi.mode(WIFI_STA);
  config.api_key = API_KEY;
  auth.user.email = USER_EMAIL;
  auth.user.password = USER_PASSWORD;

  config.database_url = DATABASE_URL;
  Firebase.reconnectWifi(size);
  fbdo.setResponseSize(4096);

  config.token_status_callback = tokenStatusCallback;
  config.max_token_generation_retry = 5;

  Firebase.begin(&config, &auth);

  Serial.println("Getting USER UID");
  while((auth.token.uid) == "")
  {
    Serial.print(".");
    delay(1000);
  }
  uid = auth.token.uid.c_str();
  Serial.print("User UID: ");
  Serial.println(uid);

  databasePath = "/UserData/" + uid;
  tempPath = databasePath + "/sensor/temperature";
  humPath = databasePath + "/sensor/humidity";
  pressPath = databasePath + "/sensor/pressure"; 

  Serial.println("Hello, ESP32!");

  
}

void sendFloat(String path, float value)
{
  if(Firebase.RTBD.setFloat(&fdbo, path.c_str(), value))
  {
    Serial.print("Writing value: ");
    Serial.println(value);
    Serial.print("On the following path: ");
    Serial.println(path);
    Serial.println("PASSED!");
    Serial.println("PATH: " + fbdo.dataPath());
    Serial.println("TYPE: " + fbdo.dataType());
  }
  else
  {
    Serial.println("FAILED!")
  }
}

void loop() {
  if(attempt)
  {
    WiFi.begin(ssid, password);
    Serial.print("Connecting to WiFi");
    while (WiFi.status() != WL_CONNECTED) {
      delay(500);
      Serial.print(".");
    }
    Serial.println("\nConnected");
    delay(2000);
    float humidity = dht.getHumidity();
    delay(10);
    float tempC = dht.getTemperature();
    delay(10);
    float pressure  = 100; //dht-22 doesnt have pressure attribute

    if(isnan(tempC) || isnan(humidity))
    {
      Serial.println(F("Failed To Read ESP32"));
      return;
    }
    Serial.print(F("Humidity: "));
    Serial.println(humidity);
    Serial.print(F("Temperature C: "));
    Serial.println(tempC);
    Serial.print(F("Pressure: "));
    Serial.println(pressure);

    sendFloat(tempPath, tempC);
    sendFloat(humPath, humidity);
    sendFloat(pressPath, pressure);
  }
  else // sleep timer alternate, implement sleep timer later
  {
    for(int i = 1; i <= 30; i++)
    {
      delay(1000);
      Serial.println(".");
    }
    attempt = true;
  }

}