#include <stdio.h>
#include "freertos/FreeRTOS.h"
#include "freertos/task.h"
#include "driver/gpio.h"
#include "esp_log.h"

// ***ERROR*** A stack overflow in task led_task has been detected.
#define CONFIG_LOG_DEFAULT_LEVEL_VERBOSE  (1)
// #define CONFIG_LOG_DEFAULT_LEVEL          (5)
#define CONFIG_LOG_MAXIMUM_LEVEL_VERBOSE  (1)
#define CONFIG_LOG_MAXIMUM_LEVEL          (5)
// #define CONFIG_LOG_COLORS                 (1)
// #define CONFIG_LOG_TIMESTAMP_SOURCE_RTOS  (1) 

// LED接在GPIO3腳
const gpio_num_t LED_PIN = GPIO_NUM_3;

static const char *TAG = "BLINK_APP";

// LED任務
static void led_task(void *pt) {
    bool led_state = 0;

    // GPIO 初始化（通常放在 task 開頭）
    gpio_config_t io_conf = {
        .pin_bit_mask = 1ULL << LED_PIN,
        .mode = GPIO_MODE_OUTPUT,
    };
    gpio_config(&io_conf);

    while (1) {
        gpio_set_level(LED_PIN, led_state);
        // printf("LED：%s\n", led_state ? "開" : "關");
        ESP_LOGI(TAG, "LED: %s", led_state ? "開" : "關");
        led_state = !led_state;
        vTaskDelay(pdMS_TO_TICKS(1000));
    }
}

// 系統入口
void app_main() {
    esp_log_level_set(TAG, ESP_LOG_VERBOSE);

    xTaskCreate(
        led_task,      // 任務函式
        "led_task",    // 名稱
        4096,          // 堆疊大小
        NULL,
        5,             // 優先等級
        NULL
    );
}