#include <WiFi.h>
#include "DHT.h"

// ═══════ إعدادات WiFi (مش مستخدمة فعليًا في السيموليشن لكن سيبناها) ═══════
#define WIFI_SSID     "MOHAMED9727"
#define WIFI_PASSWORD "MOHAMED22"

// ═══════ الأطراف (Pins) ═══════
#define DHTPIN    4
#define DHTTYPE   DHT22
#define LDR_PIN   34
#define SOIL_PIN  35
#define PUMP_PIN  26

// ═══════ ثوابت التوقيت ═══════
#define LOOP_INTERVAL  2000

// ═══════ الأجسام البرمجية ═══════
DHT dht(DHTPIN, DHTTYPE);

unsigned long lastLoop = 0;

// ═══════ متغيرات وهمية بدل Firebase ═══════
bool autoIrrigation = true;   // غيّريها للتجربة
bool pumpControl    = false;
int moistureThreshold = 30;

bool lastAutoState = true;

// ════════════════════════════════════════
void setup() {
  Serial.begin(115200);
  delay(500);

  dht.begin();

  pinMode(PUMP_PIN, OUTPUT);
  digitalWrite(PUMP_PIN, LOW);

  Serial.println("\n--- Smart Irrigation System (Wokwi Mode) ---");

  // WiFi فقط شكل تجميلي
  WiFi.begin(WIFI_SSID, WIFI_PASSWORD);
  Serial.print("Connecting WiFi");

  int t = 0;
  while (WiFi.status() != WL_CONNECTED && t < 10) {
    delay(500);
    Serial.print(".");
    t++;
  }

  Serial.println("\nWiFi simulated connected!");
}

// ════════════════════════════════════════
void loop() {
  if (millis() - lastLoop < LOOP_INTERVAL) return;
  lastLoop = millis();

  // ═══ 1. قراءة الحساسات ═══
  float temp = dht.readTemperature();
  float hum  = dht.readHumidity();

  if (isnan(temp) || isnan(hum)) {
    Serial.println("[ERROR] DHT sensor failed");
    return;
  }

  int ldrRaw   = analogRead(LDR_PIN);
  int lightPct = constrain(map(ldrRaw, 0, 4095, 0, 100), 0, 100);

  int soilRaw  = analogRead(SOIL_PIN);
  int soilPct  = constrain(map(soilRaw, 3931, 1575, 0, 100), 0, 100);

  Serial.printf("Temp: %.1f | Hum: %.1f | Soil: %d%% | Light: %d%%\n",
                temp, hum, soilPct, lightPct);

  // ═══ 2. منطق التحكم بدل Firebase ═══
  if (lastAutoState == true && autoIrrigation == false) {
    Serial.println("[INFO] AUTO → MANUAL reset pump OFF");
    pumpControl = false;
  }
  lastAutoState = autoIrrigation;

  if (autoIrrigation) {
    pumpControl = (soilPct < moistureThreshold);

    Serial.printf("[AUTO] Threshold=%d | Pump=%s\n",
                  moistureThreshold,
                  pumpControl ? "ON" : "OFF");
  } else {
    Serial.printf("[MANUAL] Pump=%s\n",
                  pumpControl ? "ON" : "OFF");
  }

  // ═══ 3. تشغيل المضخة ═══
  digitalWrite(PUMP_PIN, pumpControl ? HIGH : LOW);

  Serial.println("────────────────────────");
}