/**
 * Copyright (c) 2020 Raspberry Pi (Trading) Ltd.
 *
 * SPDX-License-Identifier: BSD-3-Clause
 */

#include "pico/stdlib.h"
#include "pico/time.h"

int main()
 {
#ifndef PICO_DEFAULT_LED_PIN
#warning blink example requires a board with a regular LED
#else
    const uint LED_PIN = PICO_DEFAULT_LED_PIN;
    const uint BUTTON_PIN = 14;  // Change to the appropriate GPIO pin for the   button

    gpio_init(LED_PIN);
    gpio_set_dir(LED_PIN, GPIO_OUT);
    gpio_init(BUTTON_PIN);
    gpio_set_dir(BUTTON_PIN, GPIO_IN);

    int blink_count = 1;
    int minute = 1;
    bool reverse_pattern = false; // Flag to toggle the pattern

    while (true) 
      {
        // Check if the button is pressed to toggle the pattern
          if (gpio_get(BUTTON_PIN) == 0) 
            {
                reverse_pattern = !reverse_pattern;
                sleep_ms(200); // Debounce delay
            }

        // Blink LED according to the current minute and the pattern direction
        if (!reverse_pattern) 
          {
            switch (minute) {
                case 1:
                    while (blink_count <= 10)
 {
                        gpio_put(LED_PIN, 1);
                        sleep_ms(500);
                        gpio_put(LED_PIN, 0);
                        sleep_ms(500);
                        blink_count++;
                    }
                    minute++;
                    break;
                case 2:
                    while (blink_count <= 20)
 {
                        gpio_put(LED_PIN, 1);
                        sleep_ms(500);
                        gpio_put(LED_PIN, 0);
                        sleep_ms(500);
                        blink_count++;
                    }
                    minute++;
                    break;
                case 3:
                    while (blink_count <= 30)
 {
                        gpio_put(LED_PIN, 1);
                        sleep_ms(500);
                        gpio_put(LED_PIN, 0);
                        sleep_ms(500);
                        blink_count++;
                    }
                    break;
            }
        } 
        else 
          {
            // Reverse pattern
            switch (minute) 
              {
                case 1:
                    while (blink_count <= 30) 
                    {
                        gpio_put(LED_PIN, 1);
                        sleep_ms(500);
                        gpio_put(LED_PIN, 0);
                        sleep_ms(500);
                        blink_count++;
                    }
                    minute++;
                    break;
                case 2:
                    while (blink_count <= 20)
                     {
                        gpio_put(LED_PIN, 1);
                        sleep_ms(500);
                        gpio_put(LED_PIN, 0);
                        sleep_ms(500);
                        blink_count++;
                     }
                    minute++;
                    break;
                case 3:
                    while (blink_count <= 10) 
                    {
                        gpio_put(LED_PIN, 1);
                        sleep_ms(500);
                        gpio_put(LED_PIN, 0);
                        sleep_ms(500);
                        blink_count++;
                    }
                    break;
            }
        }

        blink_count = 1;

        // Wait for 60 seconds
        sleep_ms(60000);
    }
#endif
}