/*
 * SPDX-FileCopyrightText: 2021-2023 Espressif Systems (Shanghai) CO LTD
 *
 * SPDX-License-Identifier: CC0-1.0
 *
 * OpenThread Command Line Example
 *
 * This example code is in the Public Domain (or CC0 licensed, at your option.)
 *
 * Unless required by applicable law or agreed to in writing, this
 * software is distributed on an "AS IS" BASIS, WITHOUT WARRANTIES OR
 * CONDITIONS OF ANY KIND, either express or implied.
*/

#include <stdio.h>
#include <unistd.h>
#include <string.h>

#include "esp_err.h"
#include "esp_event.h"
#include "esp_log.h"
#include "esp_netif.h"
#include "esp_netif_types.h"
#include "esp_openthread.h"
#include "esp_openthread_cli.h"
#include "esp_openthread_lock.h"
#include "esp_openthread_netif_glue.h"
#include "esp_openthread_types.h"
#include "esp_ot_config.h"
#include "esp_vfs_eventfd.h"
#include "driver/uart.h"
#include "freertos/FreeRTOS.h"
#include "freertos/task.h"
#include "hal/uart_types.h"
#include "nvs_flash.h"
#include "openthread/cli.h"
#include "openthread/instance.h"
#include "openthread/logging.h"
#include "openthread/tasklet.h"

#if CONFIG_OPENTHREAD_CLI_ESP_EXTENSION
#include "esp_ot_cli_extension.h"
#endif // CONFIG_OPENTHREAD_CLI_ESP_EXTENSION

#define TAG "ot_esp_cli"

static esp_netif_t *init_openthread_netif(const esp_openthread_platform_config_t *config)
{
    esp_netif_config_t cfg = ESP_NETIF_DEFAULT_OPENTHREAD();
    esp_netif_t *netif = esp_netif_new(&cfg);
    assert(netif != NULL);
    ESP_ERROR_CHECK(esp_netif_attach(netif, esp_openthread_netif_glue_init(config)));

    return netif;
}

static void ot_task_worker(void *aContext)
{
    esp_openthread_platform_config_t config = {
        .radio_config = ESP_OPENTHREAD_DEFAULT_RADIO_CONFIG(),
        .host_config = ESP_OPENTHREAD_DEFAULT_HOST_CONFIG(),
        .port_config = ESP_OPENTHREAD_DEFAULT_PORT_CONFIG(),
    };

    // Initialize the OpenThread stack
    ESP_ERROR_CHECK(esp_openthread_init(&config));

#if CONFIG_OPENTHREAD_LOG_LEVEL_DYNAMIC
    // The OpenThread log level directly matches ESP log level
    (void)otLoggingSetLevel(CONFIG_LOG_DEFAULT_LEVEL);
#endif
    // Initialize the OpenThread cli
#if CONFIG_OPENTHREAD_CLI
    esp_openthread_cli_init();
#endif

    esp_netif_t *openthread_netif;
    // Initialize the esp_netif bindings
    openthread_netif = init_openthread_netif(&config);
    esp_netif_set_default_netif(openthread_netif);

#if CONFIG_OPENTHREAD_CLI_ESP_EXTENSION
    esp_cli_custom_command_init();
#endif // CONFIG_OPENTHREAD_CLI_ESP_EXTENSION

    // Run the main loop
#if CONFIG_OPENTHREAD_CLI
    esp_openthread_cli_create_task();
#endif
#if CONFIG_OPENTHREAD_AUTO_START
    otOperationalDatasetTlvs dataset;
    otError error = otDatasetGetActiveTlvs(esp_openthread_get_instance(), &dataset);
    ESP_ERROR_CHECK(esp_openthread_auto_start((error == OT_ERROR_NONE) ? &dataset : NULL));
#endif
    esp_openthread_launch_mainloop();

    // Clean up
    esp_netif_destroy(openthread_netif);
    esp_openthread_netif_glue_deinit();

    esp_vfs_eventfd_unregister();
    vTaskDelete(NULL);
}

void app_main(void)
{
    // Used eventfds:
    // * netif
    // * ot task queue
    // * radio driver
    esp_vfs_eventfd_config_t eventfd_config = {
        .max_fds = 3,
    };

    ESP_ERROR_CHECK(nvs_flash_init());
    ESP_ERROR_CHECK(esp_event_loop_create_default());
    ESP_ERROR_CHECK(esp_netif_init());
    ESP_ERROR_CHECK(esp_vfs_eventfd_register(&eventfd_config));
    xTaskCreate(ot_task_worker, "ot_cli_main", 10240, xTaskGetCurrentTaskHandle(), 5, NULL);
}