#include <DHT.h>
#include <Wire.h>
#include <LiquidCrystal_I2C.h>
#include "esp_sleep.h"

#define DHTPIN 15
#define DHTTYPE DHT22
#define BUTTON_PIN 4

bool lastButtonState = HIGH;
bool sundayTriggered = false;

DHT dht(DHTPIN, DHTTYPE);
LiquidCrystal_I2C lcd(0x27, 16, 2); // I2C address 0x27, 16 columns, 2 rows

void setup() {
  Serial.begin(115200);
  dht.begin();
  lcd.init();
  lcd.backlight();
  pinMode(BUTTON_PIN, INPUT_PULLUP);

  lcd.setCursor(0, 0);
  lcd.print("System Booting...");
  delay(2000);
  lcd.clear();

  esp_sleep_wakeup_cause_t wakeup_reason = esp_sleep_get_wakeup_cause();
  Serial.print("Wakeup reason: ");
  Serial.println(wakeup_reason);
}

void loop() {
  bool currentButtonState = digitalRead(BUTTON_PIN);

  // Detect falling edge (HIGH to LOW)
  if (lastButtonState == HIGH && currentButtonState == LOW && !sundayTriggered) {
    sundayTriggered = true; // prevent retriggering
    lcd.clear();
    lcd.setCursor(0, 0);
    lcd.print("😴 Sunday Mode");
    lcd.setCursor(0, 1);
    lcd.print("Sleeping 24 hrs");
    Serial.println("😴 Sunday detected. Going to deep sleep for 24 hours...");
    delay(1000); // allow LCD to update
    esp_sleep_enable_timer_wakeup(86400000000ULL); // 24 hours
    esp_deep_sleep_start();
  }

  lastButtonState = currentButtonState;

  // Skip the rest if Sunday mode was triggered
  if (sundayTriggered) return;

  float temp = dht.readTemperature();

  if (isnan(temp)) {
    Serial.println("Failed to read from DHT sensor!");
    lcd.setCursor(0, 0);
    lcd.print("Sensor Error     ");
    delay(2000);
    return;
  }

  Serial.print("🌡️ Temperature: ");
  Serial.print(temp);
  Serial.println(" °C");

  lcd.setCursor(0, 0);
  lcd.print("Temp: ");
  lcd.print(temp);
  lcd.print(" C   ");

  if (temp > 35.0) {
    burnoutRecoveryLoop();
  }

  delay(5000);
}

void burnoutRecoveryLoop() {
  Serial.println("🔥 Engineer Burnout Detected! Entering Recovery Mode...");
  lcd.setCursor(0, 1);
  lcd.print("Burnout Mode...  ");

  for (int i = 0; i < 3; i++) {
    Serial.println("[Core Dump] Recovering from burnout.");
    fixBugs();
    breakThings();
    fixAgain();
    delay(10);
  }

  lcd.setCursor(0, 1);
  lcd.print("Recovery Done    ");
  Serial.println("✅ Recovery complete. Resuming normal operation.");
}

void fixBugs() {
  Serial.println("🔧 Fixing bugs...");
}

void breakThings() {
  Serial.println("💥 Oops! Something broke.");
}

void fixAgain() {
  Serial.println("🔁 Fixing again...");
}