#include "thingProperties.h"

// ========== Hardware configuration ==========
const uint8_t PIN_RED    = 3;
const uint8_t PIN_YELLOW = 5;
const uint8_t PIN_GREEN  = 6;

// Common cathode (to GND) → true; Common anode (to 5V) → false
const bool ACTIVE_HIGH = true;
// ============================================

enum LightState : int { RED = 0, YELLOW = 1, GREEN = 2, ALL_OFF = 3 };

inline void writeLamp(uint8_t pin, bool on) {
  if (ACTIVE_HIGH) digitalWrite(pin, on ? HIGH : LOW);
  else             digitalWrite(pin, on ? LOW  : HIGH);
}

void setLights(LightState s) {
  writeLamp(PIN_RED,    s == RED);
  writeLamp(PIN_YELLOW, s == YELLOW);
  writeLamp(PIN_GREEN,  s == GREEN);
  currentState = static_cast(s);  // Report back to cloud
}

void setup() {
  Serial.begin(115200);
  pinMode(PIN_RED, OUTPUT);
  pinMode(PIN_YELLOW, OUTPUT);
  pinMode(PIN_GREEN, OUTPUT);

  // Turn all off at startup
  setLights(ALL_OFF);

  // Connect to IoT Cloud
  initProperties();
  ArduinoCloud.begin(ArduinoIoTPreferredConnection);
  setDebugMessageLevel(2);
  ArduinoCloud.printDebugInfo();
}

void loop() {
  ArduinoCloud.update();
}

// ========== Cloud button callbacks ==========
void onCmdRedChange() {
  if (cmdRed) {
    setLights(RED);
    // Reset all three buttons to avoid keeping them “on” in the dashboard
    cmdRed = false; cmdYellow = false; cmdGreen = false;
  }
}

void onCmdYellowChange() {
  if (cmdYellow) {
    setLights(YELLOW);
    cmdRed = false; cmdYellow = false; cmdGreen = false;
  }
}

void onCmdGreenChange() {
  if (cmdGreen) {
    setLights(GREEN);
    cmdRed = false; cmdYellow = false; cmdGreen = false;
  }
}

/*
  Since Angle3 is READ_WRITE variable, onAngle3Change() is
  executed every time a new value is received from IoT Cloud.
*/
void onAngle3Change()  {
  // Add your code here to act upon Angle3 change
}
/*
  Since CurrentState is READ_WRITE variable, onCurrentStateChange() is
  executed every time a new value is received from IoT Cloud.
*/
void onCurrentStateChange()  {
  // Add your code here to act upon CurrentState change
}