#include <stdio.h>
#include "freertos/FreeRTOS.h"
#include "freertos/task.h"
#include "esp_system.h"
#include "esp_task_wdt.h"

void app_main() {
    printf("Hello, Wokwi!\n");

    esp_task_wdt_user_handle_t user_handle = NULL;  // <-- move here, before if/else

    
    // Get the reset reason
    esp_reset_reason_t reset_reason = esp_reset_reason();
    
    // Check if reset was caused by task watchdog
    if (reset_reason == ESP_RST_TASK_WDT) {
        printf("success\n");
    } else {
        printf("Reset reason: %d (not task WDT)\n", reset_reason);
        printf("Setting up watchdog to trigger...\n");
        
        // Configure the task watchdog with 2 second timeout
        esp_task_wdt_config_t wdt_config = {
            .timeout_ms = 2000,
            .trigger_panic = false  // This will cause panic and restart
        };
        esp_task_wdt_reconfigure(&wdt_config);
        
        // Add user "42" to the watchdog
        //esp_task_wdt_user_handle_t user_handle;
        esp_task_wdt_add_user("42", &user_handle);
        
        printf("Watchdog user '42' added. Feeding watchdog for 5 seconds...\n");

        for (int i = 0; i < 5; i++) {
            vTaskDelay(1000 / portTICK_PERIOD_MS);
            esp_task_wdt_reset_user(user_handle);
        }
        
        printf("Stopped feeding watchdog. Will trigger in 2 seconds...\n");
    }
    
    bool deleted = false;
    bool reset = false;

    while (true) {
        vTaskDelay(4000 / portTICK_PERIOD_MS);
        // Intentionally not calling esp_task_wdt_reset_user to trigger the watchdog
        printf("Loop..\n");

        
        if (!reset) {
          esp_task_wdt_reset_user(user_handle);
          reset = true;
        }
        if (!deleted) {
          esp_task_wdt_delete_user(user_handle);
          deleted = true;
        }

        vTaskDelay(1000 / portTICK_PERIOD_MS);
        // Intentionally not calling esp_task_wdt_reset_user to trigger the watchdog
        printf("Loop..\n");
    }
}