#include <Adafruit_NeoPixel.h>

#define LED_PIN     6    // The pin where your LED strip is connected
#define TOUCH_PIN   2    // The pin where your touch sensor is connected
#define SWITCH_PIN  3    // The pin where your switch is connected
#define NUM_LEDS    32   // Number of LEDs in your strip

Adafruit_NeoPixel strip = Adafruit_NeoPixel(NUM_LEDS, LED_PIN, NEO_GRB + NEO_KHZ800);

bool ledState = false;  // Track whether LEDs are on or off
bool lastTouchState = false;  // Track the last state of the touch sensor
bool lastSwitchState = true;  // Track the last state of the switch (true because of INPUT_PULLUP)
int brightness = 0;  // Current brightness level (0-255)
int touchMode = 0;  // Track the current mode of the touch sensor (0 to 3)
const int brightnessLevels[] = {0, 102, 178, 255};  // Brightness levels for each mode (0%, 40%, 70%, 100%)

void setup() {
  strip.begin();
  strip.show();  // Initialize all pixels to 'off'
  
  pinMode(TOUCH_PIN, INPUT);
  pinMode(SWITCH_PIN, INPUT_PULLUP);
}
int ct=0;
int cs=0;
void loop() {
  bool currentTouchState = digitalRead(TOUCH_PIN);
  bool currentSwitchState = !digitalRead(SWITCH_PIN);  // Invert because of INPUT_PULLUP
ct  = currentTouchState;
cs = currentSwitchState;
  // Check for switch change
  if (currentSwitchState != lastSwitchState) {
    ledState = currentSwitchState;  // Set LED state to match switch
    brightness = ledState ? 255 : 0;  // Set brightness based on ledState
    touchMode = 0;  // Reset touch mode
    updateLEDs();
  }

  // Check for touch sensor change (rising edge) if switch is off
  if (!currentSwitchState && currentTouchState && !lastTouchState) {
    ledState = !ledState;  // Toggle LED state
    brightness = ledState ? 255 : 0;  // Set brightness based on ledState
    updateLEDs();
  }

  lastTouchState = currentTouchState;
  lastSwitchState = currentSwitchState;

  delay(1);  // Small delay for responsiveness
}

void updateLEDs() {
  if (ledState) {
    // Turn on LEDs to warm white with current brightness
    for(int i=0; i<NUM_LEDS; i++) {
      uint8_t r = 255 * brightness / 255;
      uint8_t g = 147 * brightness / 255;
      uint8_t b = 41 * brightness / 255;
      strip.setPixelColor(i, strip.Color(r, g, b));
    }
  } else {
    // Turn off all LEDs
    strip.clear();
  }
  strip.show();  // Update the strip
}