#include <SPI.h>
#include <Wire.h>
#include <Adafruit_GFX.h>
#include <Adafruit_SSD1306.h>
#include "time.h"

#include <WiFi.h>
WiFiClient client;

#include "DHT.h"

#define TOKEN "BBUS-8CtThy12HXCSozWf5VhiRLHIa3pRIX" // Ganti dengan token Ubidots Anda.
#define DEVICE_NAME "wokwi" // Ganti dengan nama perangkat Ubidots Anda.

#define NTP_SERVER "pool.ntp.org"
#define GMT_OFFSET_SEC 7 * 3600
#define DAYLIGHT_OFFSET_SEC 0

#define DHT_TYPE DHT22
#define DHT_PIN 13
DHT dht(DHT_PIN, DHT_TYPE);

#define SCREEN_WIDTH 128
#define SCREEN_HEIGHT 64
#define OLED_RESET -1
#define SCREEN_ADDRESS 0x3C
Adafruit_SSD1306 display(SCREEN_WIDTH, SCREEN_HEIGHT, &Wire, OLED_RESET);

byte panjang, lebar;
int16_t x, y;
uint16_t w, h;

const int LED_PIN = 12;

const char* WIFI_NAME = "Wokwi-GUEST";
const char* WIFI_PASSWORD = "";
const char* HTTP_SERVER = "industrial.api.ubidots.com"; // Ganti dengan server Ubidots yang benar.
const uint16_t HTTP_PORT = 80;

byte trigPin1 = 17;
byte echoPin1 = 16;
#define SOUND_SPEED 0.034

float jarakcm1, humidity, temperature;
bool statusSwitch;
byte pinSwitch = 12;

void setup() {
  Serial.begin(115200);
  pinMode(pinSwitch, INPUT_PULLUP);
  pinMode(trigPin1, OUTPUT);
  pinMode(echoPin1, INPUT);

  Serial.println("ESP32 Wokwi Monitoring Send Data to Ubidots");

  display.begin(SSD1306_SWITCHCAPVCC, SCREEN_ADDRESS);
  display.clearDisplay();
  display.setTextSize(2);
  display.setTextColor(SSD1306_WHITE);
  display.getTextBounds("ESP32", 0, 0, &x, &y, &w, &h);
  panjang = (SCREEN_WIDTH - w) / 2;
  display.setCursor(panjang, 0);
  display.print("ESP32");
  display.display();
  delay(500);

  // ... (Sama seperti bagian sebelumnya untuk menampilkan teks MONITORING dan TO UBIDOTS)

  // Inisialisasi DHT22
  dht.begin();

  display.clearDisplay();
  display.getTextBounds("CHECK WIFI", 0, 0, &x, &y, &w, &h);
  panjang = (SCREEN_WIDTH - w) / 2;
  display.setCursor(panjang, 0);
  display.print("CHECK WIFI");
  display.display();

  WiFi.mode(WIFI_STA);
  WiFi.begin(WIFI_NAME, WIFI_PASSWORD);
  unsigned long waktu = millis();
  while (WiFi.status() != WL_CONNECTED && millis() - waktu < 30000) {
    delay(250);
    Serial.println("Wifi not connected");
  }

  display.getTextBounds("Connected!", 0, 0, &x, &y, &w, &h);
  panjang = (SCREEN_WIDTH - w) / 2;
  display.setCursor(panjang, 30);
  display.print("Connected!");
  display.display();

  Serial.println("Wifi connected !");
  Serial.println("Local IP: " + WiFi.localIP().toString());

  configTime(GMT_OFFSET_SEC, DAYLIGHT_OFFSET_SEC, NTP_SERVER);
  struct tm timeinfo;
  getLocalTime(&timeinfo);
  delay(2000);

  display.clearDisplay();
  display.setTextSize(1);
  display.setCursor(0, 20);
  display.print("Temp");
  display.setCursor(0, 35);
  display.print("Humid");

  display.setCursor(30, 20);
  display.print(":");
  display.setCursor(30, 35);
  display.print(":");
  display.setCursor(30, 50);
  display.print(":");
  display.display();
}

void loop() {
  printLocalTime();
  getDistance();
  getDataDHT();
  statusSwitch = digitalRead(pinSwitch);
  displayData();

  if (!client.connect(HTTP_SERVER, HTTP_PORT)) {
    Serial.println("Connection to host failed");
    delay(100);
    return;
  }

  Serial.println("Connected to server successful!");

  sendData();
  delay(5000);
}

void printLocalTime() {
  struct tm timeinfo;
  if (!getLocalTime(&timeinfo)) {
    Serial.println("Failed to obtain time");
    return;
  }
  Serial.println(&timeinfo, "%A, %B %d %Y %H:%M:%S");
  display.fillRect(0, 0, 128, 15, SSD1306_BLACK);
  display.setCursor(0, 0);
  display.print(&timeinfo, "%m/%d/%Y %H:%M");
  display.display();
}

void displayData() {
  Serial.print("Status Switch = ");
  Serial.println(statusSwitch);
  Serial.print("Temperature = ");
  Serial.println(temperature);
  Serial.print("Humidity = ");
  Serial.println(humidity);

  display.fillRect(35, 20, 20, 44, SSD1306_BLACK);
  display.setCursor(40, 20);
  display.print(temperature, 1);
  display.setCursor(40, 35);
  display.print(humidity);

  if (temperature < 20) {
    display.clearDisplay();
    display.setTextSize(2);
    display.setTextColor(SSD1306_WHITE);
    display.getTextBounds("memanaskan", 0, 0, &x, &y, &w, &h);
    panjang = (SCREEN_WIDTH - w) / 2;
    display.setCursor(panjang, 0);
    display.print("memanaskan");
    display.setTextSize(1);
    display.setCursor(0, 25);
    display.setTextColor(SSD1306_WHITE);
    display.display();
  }

  if (statusSwitch == 1)
    display.fillCircle(105, 40, 20, SSD1306_WHITE);
  else {
    display.fillCircle(105, 40, 20, SSD1306_BLACK);
    display.drawCircle(105, 40, 20, SSD1306_WHITE);
  }
  display.display();
}


void sendData() {
  String requestBody = "";
  requestBody = "{\"temperature\":" + String(temperature, 2);
  requestBody += ",\"switch\":" + String(statusSwitch);
  requestBody += ",\"humidity\":" + String(humidity, 1) + "}";

  Serial.println(requestBody);
  Serial.println("---");

  Serial.println("Sending HTTP request...");
  client.print(F("POST /api/v1.6/devices/"));
  client.print(DEVICE_NAME);
  client.println(F(" HTTP/1.1"));
  client.println(F("User-Agent: ESP32/1.0"));
  client.print(F("X-Auth-Token: "));
  client.println(TOKEN);
  client.println(F("Connection: close"));
  client.println(F("Content-Type: application/json"));
  client.print(F("Content-Length: "));
  client.println(requestBody.length());
  client.print(F("Host: "));
  client.println(HTTP_SERVER);
  client.println();
  client.println(requestBody);
  client.println();

  Serial.println("Reading response...");
  while (client.connected()) {
    String line = client.readStringUntil('\n');
    if (line == "\r") {
      break;
    }
  }
  String response = client.readStringUntil('\n');
  Serial.println(response);

  Serial.println("Closing connection");
  client.stop();
}

void getDistance() {
  unsigned long durasi = 0;
  digitalWrite(trigPin1, LOW);
  delayMicroseconds(2);
  digitalWrite(trigPin1, HIGH);
  delayMicroseconds(10);
  digitalWrite(trigPin1, LOW);
  durasi = pulseIn(echoPin1, HIGH);
  jarakcm1 = durasi * SOUND_SPEED / 2;
}

void getDataDHT() {
  humidity = dht.readHumidity();
  temperature = dht.readTemperature();
}