/**
 * @file 0x02_blink.c
 * @brief Blink demonstration: toggle onboard LED every 500 ms
 * @author Kevin Thomas
 * @date 2025
 *
 * MIT License
 *
 * Copyright (c) 2025 Kevin Thomas
 *
 * Permission is hereby granted, free of charge, to any person obtaining a copy
 * of this software and associated documentation files (the "Software"), to deal
 * in the Software without restriction, including without limitation the rights
 * to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
 * copies of the Software, and to permit persons to whom the Software is
 * furnished to do so, subject to the following conditions:
 *
 * The above copyright notice and this permission notice shall be included in all
 * copies or substantial portions of the Software.
 *
 * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
 * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
 * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
 * AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
 * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
 * OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE
 * SOFTWARE.
 *
 * -----------------------------------------------------------------------------
 *
 * Demonstrates GPIO output control using the blink driver (blink.h / blink.c).
 * The onboard LED on GPIO 25 is toggled every BLINK_DELAY_MS milliseconds and
 * the current state is reported over UART.
 *
 * Wiring:
 *   GPIO25 -> Onboard LED (no external wiring needed)
 */

#include <stdio.h>
#include "pico/stdlib.h"
#include "blink.h"

/** @brief GPIO pin for the onboard LED */
#define LED_PIN        25
/** @brief Delay between blink toggles in milliseconds */
#define BLINK_DELAY_MS 500

int main(void) {
    stdio_init_all();
    blink_init(LED_PIN);
    printf("Blink driver initialized on GPIO %d\r\n", LED_PIN);
    while (true) {
        blink_toggle(LED_PIN);
        printf("LED: %s\r\n", blink_get_state(LED_PIN) ? "ON" : "OFF");
        sleep_ms(BLINK_DELAY_MS);
    }
}