// Pin definitions
const int BUTTON1_PIN = 14;   // Manual control for RELAY1
const int BUTTON2_PIN = 27;   // Manual control for RELAY2
const int RELAY1_PIN = 15;
const int RELAY2_PIN = 32;
const int PIR_PIN = 33;
const int LDR_PIN = 35;

bool occupancy1 = false;
bool occupancy2 = false;

void setup() {
  Serial.begin(115200);
  pinMode(BUTTON1_PIN, INPUT_PULLUP);
  pinMode(BUTTON2_PIN, INPUT_PULLUP);
  pinMode(PIR_PIN, INPUT);
  pinMode(RELAY1_PIN, OUTPUT);
  pinMode(RELAY2_PIN, OUTPUT);
  digitalWrite(RELAY1_PIN, LOW);
  digitalWrite(RELAY2_PIN, LOW);
}

void loop() {
  static bool lastButton1State = HIGH;
  static bool lastButton2State = HIGH;

  bool currentButton1State = digitalRead(BUTTON1_PIN);
  bool currentButton2State = digitalRead(BUTTON2_PIN);

  // Manual toggle for RELAY1
  if (lastButton1State == HIGH && currentButton1State == LOW) {
    occupancy1 = !occupancy1;
    digitalWrite(RELAY1_PIN, occupancy1 ? HIGH : LOW);
    Serial.println(occupancy1 ? "Manual: Load 1 ON" : "Manual: Load 1 OFF");
    delay(300);
  }
  lastButton1State = currentButton1State;

  // Manual toggle for RELAY2
  if (lastButton2State == HIGH && currentButton2State == LOW) {
    occupancy2 = !occupancy2;
    digitalWrite(RELAY2_PIN, occupancy2 ? HIGH : LOW);
    Serial.println(occupancy2 ? "Manual: Load 2 ON" : "Manual: Load 2 OFF");
    delay(300);
  }
  lastButton2State = currentButton2State;

  // LDR reading
  int ldrValue = analogRead(LDR_PIN);
  Serial.print("LDR Value: ");
  Serial.println(ldrValue);
  const int DARK_THRESHOLD = 2000;

  // PIR + LDR logic for both relays
  if (digitalRead(PIR_PIN) == HIGH && ldrValue < DARK_THRESHOLD) {
    digitalWrite(RELAY1_PIN, HIGH);
    digitalWrite(RELAY2_PIN, HIGH);
    Serial.println("Motion & Darkness Detected: Loads ON");
    delay(5000);
    digitalWrite(RELAY1_PIN, occupancy1 ? HIGH : LOW);
    digitalWrite(RELAY2_PIN, occupancy2 ? HIGH : LOW);
    Serial.println("Motion Timeout: Restoring manual states");
    delay(3000);
  }
}