#define BLYNK_TEMPLATE_ID "TMPL3fOmsq3fT"
#define BLYNK_TEMPLATE_NAME "AI Powered Smart Washing Machine"
#define BLYNK_AUTH_TOKEN "2s9kdrlW_5g9QpyAXPMTxwn4tXAc99r7"

// Set true for Wokwi offline test (no Blynk needed)
// Set false for real Blynk cloud usage
#define SERIAL_FALLBACK true

#include <Arduino.h>

#if !SERIAL_FALLBACK
#include <WiFi.h>
#include <WiFiClient.h>
#include <BlynkSimpleEsp32.h>
#endif

// Potentiometers
int dirtPin = 32;     // Dirt level (Pot1)
int fabricPin = 33;   // Fabric type (Pot2)

// Blynk virtual pins
#define VP_FABRIC V0
#define VP_DIRT   V1
#define VP_TIME   V2
#define VP_WATER  V3

// ------------------ CLASSIFIERS ------------------

String classifyFabric(int raw) {
  if (raw < 1500) return "Cotton";
  if (raw < 3000) return "Synthetic";
  return "Wool";
}

String classifyDirt(int raw) {
  if (raw < 1500) return "Low";
  if (raw < 3000) return "Medium";
  return "High";
}

int getBaseTime(String fabric) {
  if (fabric == "Cotton") return 30;
  if (fabric == "Synthetic") return 20;
  return 15; // Wool
}

float getMultiplier(String dirt) {
  if (dirt == "Low") return 1.0;
  if (dirt == "Medium") return 1.5;
  return 2.0; // High
}

// ------------------ SETUP ------------------

void setup() {
  Serial.begin(115200);

#if !SERIAL_FALLBACK
  Blynk.begin(BLYNK_AUTH_TOKEN, "Wokwi-GUEST", "");
#else
  Serial.println("Running in SERIAL ONLY mode (Blynk disabled)");
#endif

  pinMode(dirtPin, INPUT);
  pinMode(fabricPin, INPUT);
}

// ------------------ LOOP ------------------

void loop() {

#if !SERIAL_FALLBACK
  Blynk.run();
#endif

  int dirtRaw = analogRead(dirtPin);
  int fabricRaw = analogRead(fabricPin);

  String fabric = classifyFabric(fabricRaw);
  String dirt = classifyDirt(dirtRaw);

  int baseTime = getBaseTime(fabric);
  float multiplier = getMultiplier(dirt);

  int washTime = baseTime * multiplier;
  int water = washTime * 2;  // Example: 2 liters per minute

#if !SERIAL_FALLBACK
  Blynk.virtualWrite(VP_FABRIC, fabric);
  Blynk.virtualWrite(VP_DIRT, dirt);
  Blynk.virtualWrite(VP_TIME, washTime);
  Blynk.virtualWrite(VP_WATER, water);
#else
  Serial.print("Fabric: "); Serial.print(fabric);
  Serial.print("  Dirt: "); Serial.print(dirt);
  Serial.print("  Time: "); Serial.print(washTime); Serial.print(" min");
  Serial.print("  Water: "); Serial.print(water); Serial.println(" L");
#endif

  delay(1000);
}