/* 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 "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_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/portmacro.h"
#include "freertos/task.h"
#include "hal/uart_types.h"
#include "openthread/cli.h"
#include "openthread/instance.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"

extern void otAppCliInit(otInstance *aInstance);

#if CONFIG_OPENTHREAD_CLI_ESP_EXTENSION
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;
}
#endif // CONFIG_OPENTHREAD_CLI_ESP_EXTENSION

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));

    // Initialize the OpenThread cli
    otAppCliInit(esp_openthread_get_instance());

#if CONFIG_OPENTHREAD_CLI_ESP_EXTENSION
    esp_netif_t *openthread_netif;
    // Initialize the esp_netif bindings
    openthread_netif = init_openthread_netif(&config);

    esp_cli_custom_command_init();
#endif // CONFIG_OPENTHREAD_CLI_ESP_EXTENSION

    // Run the main loop
    esp_openthread_launch_mainloop();

    // Clean up
#if CONFIG_OPENTHREAD_CLI_ESP_EXTENSION
    esp_netif_destroy(openthread_netif);
    esp_openthread_netif_glue_deinit();
#endif // CONFIG_OPENTHREAD_CLI_ESP_EXTENSION

    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(esp_event_loop_create_default());
#if CONFIG_OPENTHREAD_CLI_ESP_EXTENSION
    ESP_ERROR_CHECK(esp_netif_init());
#endif // CONFIG_OPENTHREAD_CLI_ESP_EXTENSION
    ESP_ERROR_CHECK(esp_vfs_eventfd_register(&eventfd_config));
    xTaskCreate(ot_task_worker, "ot_cli_main", 10240, xTaskGetCurrentTaskHandle(), 5, NULL);
}