/* Program Sistem Siram Tanaman */

#define BLYNK_TEMPLATE_ID "TMPL6mUN6D0Q4"
#define BLYNK_TEMPLATE_NAME "Tes IoT"
#define BLYNK_AUTH_TOKEN "-lYeOsu1GWrB1YWs8mbO2AjGnhVtFqbp"

#include <Wire.h>
#include <LiquidCrystal_I2C.h>
#include <DHT.h>
#include <ESP32Servo.h>
#include <WiFi.h>
#include <BlynkSimpleEsp32.h>

/* WiFi */
char ssid[] = "Wokwi-GUEST";
char pass[] = "";

/* Timer */
BlynkTimer timer;

/* PIN */
#define SERVO1_PIN 18
#define SERVO2_PIN 19
#define LDR_PIN    35
#define DHT_PIN    15
#define SOIL1_PIN  32
#define SOIL2_PIN  34

/* Sensor */
#define DHTTYPE DHT22
DHT dht(DHT_PIN, DHTTYPE);

/* LCD */
LiquidCrystal_I2C lcd(0x27, 20, 4);

/* Servo */
Servo servo1;
Servo servo2;

/* Variabel Global */
float suhu, kelembaban, lux;
int soil1, soil2;

/* ---------------------------------------------------------------------- */
/* Kirim data sensor ke Blynk                                             */
/* ---------------------------------------------------------------------- */
void sendToBlynk() {
  Blynk.virtualWrite(V8, suhu);
  Blynk.virtualWrite(V7, kelembaban);
  Blynk.virtualWrite(V1, soil1);
  Blynk.virtualWrite(V2, soil2);
  Blynk.virtualWrite(V3, lux);
}

/* ---------------------------------------------------------------------- */
/* Baca semua sensor + CETAK SERIAL                                       */
/* ---------------------------------------------------------------------- */
void readSensors() {

  // DHT
  suhu = dht.readTemperature();
  kelembaban = dht.readHumidity();

  // Soil moisture (0–4095 → %)
  soil1 = map(analogRead(SOIL1_PIN), 4095, 0, 0, 100);
  soil2 = map(analogRead(SOIL2_PIN), 4095, 0, 0, 100);

  // LDR (Lux)
  int adc = analogRead(LDR_PIN);
  lux = map(adc, 4095, 0, 0, 2000);

  // Kontrol servo
  bool pump1_on = soil1 > 70;
  bool pump2_on = soil2 > 70;

  servo1.write(pump1_on ? 180 : 0);
  servo2.write(pump2_on ? 180 : 0);

  // --- CETAK KE SERIAL (PRINT LOG LENGKAP) ---
  Serial.println("===== DATA SENSOR =====");

  Serial.print("Suhu : "); Serial.print(suhu); Serial.println(" C");
  Serial.print("Hum  : "); Serial.print(kelembaban); Serial.println(" %");

  Serial.print("Tanah 1 : "); Serial.print(soil1); 
  Serial.print("% | Pump1: "); Serial.println(pump1_on ? "ON" : "OFF");

  Serial.print("Tanah 2 : "); Serial.print(soil2); 
  Serial.print("% | Pump2: "); Serial.println(pump2_on ? "ON" : "OFF");

  Serial.print("Lux: "); Serial.print(lux); Serial.print(" | Kategori: ");
  if (lux < 300) Serial.println("Malam");
  else if (lux < 900) Serial.println("Pagi/Sore");
  else Serial.println("Siang");

  // Suhu kategori
  Serial.print("Kategori Suhu: ");
  if (suhu < 20) Serial.println("Dingin");
  else if (suhu < 30) Serial.println("Normal");
  else Serial.println("Panas");

  // Hum kategori
  Serial.print("Kategori Hum : ");
  if (kelembaban < 40) Serial.println("Kering");
  else if (kelembaban < 70) Serial.println("Normal");
  else Serial.println("Lembab");

  Serial.println("========================\n");
}

/* ---------------------------------------------------------------------- */
/* Update LCD tanpa flicker                                               */
/* ---------------------------------------------------------------------- */
void updateLCD() {
  lcd.clear();

  // ==== STATUS TANAH 1 ====
  String pump1 = (soil1 > 70) ? "ON" : "OFF";
  lcd.setCursor(0, 0);
  lcd.print("T1:");
  lcd.print(soil1);
  lcd.print("% ");
  lcd.print(pump1);

  // ==== STATUS TANAH 2 ====
  String pump2 = (soil2 > 70) ? "ON" : "OFF";
  lcd.setCursor(11, 0);
  lcd.print("T2:");
  lcd.print(soil2);
  lcd.print("% ");
  lcd.print(pump2);

  // ==== KATEGORI CAHAYA ====
  String kategoriCahaya;
  if (lux < 300) kategoriCahaya = "Malam";
  else if (lux < 900) kategoriCahaya = "Pagi/Sore";
  else kategoriCahaya = "Siang";

  lcd.setCursor(0, 1);
  lcd.print("Lux:");
  lcd.print(lux);
  lcd.print(" ");
  lcd.print(kategoriCahaya);

  // ==== KATEGORI SUHU ====
  String kategoriSuhu;
  if (suhu < 20) kategoriSuhu = "Dingin";
  else if (suhu < 30) kategoriSuhu = "Normal";
  else kategoriSuhu = "Panas";

  lcd.setCursor(0, 2);
  lcd.print("Suhu:");
  lcd.print(suhu);
  lcd.print("C ");
  lcd.print(kategoriSuhu);

  // ==== KATEGORI KELEMBABAN ====
  String kategoriH;
  if (kelembaban < 40) kategoriH = "Kering";
  else if (kelembaban < 70) kategoriH = "Normal";
  else kategoriH = "Lembab";

  lcd.setCursor(0, 3);
  lcd.print("Hum:");
  lcd.print(kelembaban);
  lcd.print("% ");
  lcd.print(kategoriH);
}


/* ---------------------------------------------------------------------- */
/* Setup                                                                   */
/* ---------------------------------------------------------------------- */
void setup() {
  Serial.begin(115200);

  dht.begin();

  Blynk.begin(BLYNK_AUTH_TOKEN, ssid, pass);

  lcd.init();
  lcd.backlight();

  servo1.attach(SERVO1_PIN);
  servo2.attach(SERVO2_PIN);

  lcd.setCursor(0,0);
  lcd.print("Sistem Monitoring");
  lcd.setCursor(0,1);
  lcd.print("Tanaman Berbasis IoT");
  lcd.setCursor(0,2);
  lcd.print("(SISMOTANI) oleh:");
  lcd.setCursor(0,3);
  lcd.print("Made Santo Gitakarma");
  delay(4000);
  lcd.clear();

  // Timer setiap 1 detik
  timer.setInterval(1000L, readSensors);
  timer.setInterval(1500L, updateLCD);
  timer.setInterval(2000L, sendToBlynk);
}

/* ---------------------------------------------------------------------- */
/* Loop                                                                    */
/* ---------------------------------------------------------------------- */
void loop() {
  Blynk.run();
  timer.run();
}