#include "WiFi.h"
#include <HTTPClient.h>
#include <ArduinoJson.h>

static char *ssid = "Wokwi-GUEST"; 
static char *pass = "";

HTTPClient http;
String Firebase("https://project-5397856331035634927-default-rtdb.asia-southeast1.firebasedatabase.app/");

#define SW1_1 12
#define SW1_0 13
#define AnalogIN1 39
#define AnalogIN2 36
#define SPK 32


byte OUT,Turn = 0;
int JP1, JP2, JP3;
String Message, MessageTMP; 

float Level_1_TMP = 0xff,
      Level_2_TMP = 0xff;

void SW1_ON() {
  OUT = 2; digitalWrite(LED_BUILTIN, 1);
}
void SW1_OFF() {
  OUT = 1; digitalWrite(LED_BUILTIN, 0);
}

void Beep(int F,int L) {
  for (int i = 0; i <= L; i++) {
    digitalWrite(SPK, 1); delayMicroseconds(F);
    digitalWrite(SPK, 0); delayMicroseconds(F);
  }
}

void setup() {
  Serial.begin(115200);
  pinMode(SPK, OUTPUT);  
  pinMode(LED_BUILTIN, OUTPUT);
  pinMode(SW1_1, INPUT_PULLUP);
  pinMode(SW1_0, INPUT_PULLUP);
  attachInterrupt(SW1_1, SW1_ON, FALLING);
  attachInterrupt(SW1_0, SW1_OFF, FALLING);

  WiFi.mode(WIFI_STA);
  WiFi.begin(ssid, pass);
  Serial.print("Connecting to WiFi .");
  while (WiFi.status() != WL_CONNECTED) {
    Serial.print('.');  delay(100);
  }
  Serial.println(WiFi.localIP());
}

void loop() {
  byte Level_ = 0;
  JsonDocument JP;
  if (map(analogRead(AnalogIN1),0,4095,0,100) != Level_1_TMP) {
    JP["o1"] = Level_1_TMP = map(analogRead(AnalogIN1),0,4095,0,100);
    Level_++;
  }
  if (map(analogRead(AnalogIN2),0,4095,0,100) != Level_2_TMP) {
    JP["o2"] = Level_2_TMP = map(analogRead(AnalogIN2),0,4095,0,100);
    Level_++;
  }
  if (OUT == 1) {
    JP["o3"] = 0;
    Level_++;
  } else if (OUT == 2) {
    JP["o3"] = 1;
    Level_++; 
  }
  serializeJson(JP, Message);
  OUT = 0;

  http.begin(Firebase + ".json");
  int httpCode;
  if (Level_ > 0 && Turn == 0) {
    httpCode = http.PATCH(Message); 
    Level_ = 0;
    Turn = 1;
  } else {
    httpCode = http.GET();
    Turn = 0;
  }

  if (httpCode == 200) {
    String Message = http.getString();
    if (!MessageTMP.equals(Message)){
      MessageTMP = Message;
      deserializeJson(JP, Message);
      if (JP["o1"] != nullptr) JP1 = JP["o1"];
      if (JP["o2"] != nullptr) JP2 = JP["o2"];
      if (JP["o3"] != nullptr) JP3 = JP["o3"];

      if (JP3 >= 1) {
        digitalWrite(LED_BUILTIN, 1);
      } else {
        digitalWrite(LED_BUILTIN, 0);
      }
      Beep(1000, 4);
      Serial.println(Message);
    }
  } else {
    Serial.println("HTTP ERROR " + String(httpCode));
    Beep(2000, 10); Beep(300, 50);
  }
}