/*
 * SPDX-FileCopyrightText: 2021-2024 Espressif Systems (Shanghai) CO LTD
 *
 * SPDX-License-Identifier: CC0-1.0
 *
 * Zigbee Gateway 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 <fcntl.h>
#include <string.h>
#include "freertos/FreeRTOS.h"
#include "freertos/task.h"
#include "driver/usb_serial_jtag.h"
#include "esp_coexist.h"
#include "esp_log.h"
#include "esp_netif.h"
#include "esp_vfs_eventfd.h"
#include "esp_wifi.h"
#include "nvs_flash.h"
#include "protocol_examples_common.h"
#include "esp_zigbee_gateway.h"

#include "esp_vfs_dev.h"
#include "esp_vfs_usb_serial_jtag.h"
#include "driver/usb_serial_jtag.h"

#if (!defined ZB_MACSPLIT_HOST && defined ZB_MACSPLIT_DEVICE)
#error Only Zigbee gateway host device should be defined
#endif

static const char *TAG = "ESP_ZB_GATEWAY";

/* Note: Please select the correct console output port based on the development board in menuconfig */
#if CONFIG_ESP_CONSOLE_USB_SERIAL_JTAG
esp_err_t esp_zb_gateway_console_init(void)
{
    esp_err_t ret = ESP_OK;
    /* Disable buffering on stdin */
    setvbuf(stdin, NULL, _IONBF, 0);

    /* Minicom, screen, idf_monitor send CR when ENTER key is pressed */
    esp_vfs_dev_usb_serial_jtag_set_rx_line_endings(ESP_LINE_ENDINGS_CR);
    /* Move the caret to the beginning of the next line on '\n' */
    esp_vfs_dev_usb_serial_jtag_set_tx_line_endings(ESP_LINE_ENDINGS_CRLF);

    /* Enable non-blocking mode on stdin and stdout */
    fcntl(fileno(stdout), F_SETFL, O_NONBLOCK);
    fcntl(fileno(stdin), F_SETFL, O_NONBLOCK);

    usb_serial_jtag_driver_config_t usb_serial_jtag_config = USB_SERIAL_JTAG_DRIVER_CONFIG_DEFAULT();
    ret = usb_serial_jtag_driver_install(&usb_serial_jtag_config);
    esp_vfs_usb_serial_jtag_use_driver();
    esp_vfs_dev_uart_register();
    return ret;
}
#endif

static void bdb_start_top_level_commissioning_cb(uint8_t mode_mask)
{
    ESP_ERROR_CHECK(esp_zb_bdb_start_top_level_commissioning(mode_mask));
}

void esp_zb_app_signal_handler(esp_zb_app_signal_t *signal_struct)
{
    uint32_t *p_sg_p       = signal_struct->p_app_signal;
    esp_err_t err_status = signal_struct->esp_err_status;
    esp_zb_app_signal_type_t sig_type = *p_sg_p;
    esp_zb_zdo_signal_device_annce_params_t *dev_annce_params = NULL;
    esp_zb_zdo_signal_macsplit_dev_boot_params_t *rcp_version = NULL;

    switch (sig_type) {
    case ESP_ZB_ZDO_SIGNAL_SKIP_STARTUP:
        ESP_LOGI(TAG, "Zigbee stack initialized");
        esp_zb_bdb_start_top_level_commissioning(ESP_ZB_BDB_MODE_INITIALIZATION);
        break;
    case ESP_ZB_MACSPLIT_DEVICE_BOOT:
        ESP_LOGI(TAG, "Zigbee rcp device booted");
        rcp_version = (esp_zb_zdo_signal_macsplit_dev_boot_params_t *)esp_zb_app_signal_get_params(p_sg_p);
        ESP_LOGI(TAG, "Running RCP Version: %s", rcp_version->version_str);
        break;
    case ESP_ZB_BDB_SIGNAL_DEVICE_FIRST_START:
    case ESP_ZB_BDB_SIGNAL_DEVICE_REBOOT:
        if (err_status == ESP_OK) {
            ESP_LOGI(TAG, "Device started up in %s factory-reset mode", esp_zb_bdb_is_factory_new() ? "" : "non");
            if (esp_zb_bdb_is_factory_new()) {
                ESP_LOGI(TAG, "Start network formation");
                esp_zb_bdb_start_top_level_commissioning(ESP_ZB_BDB_MODE_NETWORK_FORMATION);
            } else {
                ESP_LOGI(TAG, "Device rebooted");
            }
        } else {
            ESP_LOGE(TAG, "Failed to initialize Zigbee stack (status: %s)", esp_err_to_name(err_status));
        }
        break;
    case ESP_ZB_BDB_SIGNAL_FORMATION:
        if (err_status == ESP_OK) {
            esp_zb_ieee_addr_t ieee_address;
            esp_zb_get_long_address(ieee_address);
            ESP_LOGI(TAG, "Formed network successfully (Extended PAN ID: %02x:%02x:%02x:%02x:%02x:%02x:%02x:%02x, PAN ID: 0x%04hx, Channel:%d, Short Address: 0x%04hx)",
                     ieee_address[7], ieee_address[6], ieee_address[5], ieee_address[4],
                     ieee_address[3], ieee_address[2], ieee_address[1], ieee_address[0],
                     esp_zb_get_pan_id(), esp_zb_get_current_channel(), esp_zb_get_short_address());
            esp_zb_bdb_start_top_level_commissioning(ESP_ZB_BDB_MODE_NETWORK_STEERING);
        } else {
            ESP_LOGI(TAG, "Restart network formation (status: %s)", esp_err_to_name(err_status));
            esp_zb_scheduler_alarm((esp_zb_callback_t)bdb_start_top_level_commissioning_cb, ESP_ZB_BDB_MODE_NETWORK_FORMATION, 1000);
        }
        break;
    case ESP_ZB_BDB_SIGNAL_STEERING:
        if (err_status == ESP_OK) {
            ESP_LOGI(TAG, "Network steering started");
        }
        break;
    case ESP_ZB_ZDO_SIGNAL_DEVICE_ANNCE:
        dev_annce_params = (esp_zb_zdo_signal_device_annce_params_t *)esp_zb_app_signal_get_params(p_sg_p);
        ESP_LOGI(TAG, "New device commissioned or rejoined (short: 0x%04hx)", dev_annce_params->device_short_addr);
        break;
    case ESP_ZB_NWK_SIGNAL_PERMIT_JOIN_STATUS:
        if (err_status == ESP_OK) {
            if (*(uint8_t *)esp_zb_app_signal_get_params(p_sg_p)) {
                ESP_LOGI(TAG, "Network(0x%04hx) is open for %d seconds", esp_zb_get_pan_id(), *(uint8_t *)esp_zb_app_signal_get_params(p_sg_p));
            } else {
                ESP_LOGW(TAG, "Network(0x%04hx) closed, devices joining not allowed.", esp_zb_get_pan_id());
            }
        }
        break;
    default:
        ESP_LOGI(TAG, "ZDO signal: %s (0x%x), status: %s", esp_zb_zdo_signal_to_string(sig_type), sig_type,
                 esp_err_to_name(err_status));
        break;
    }
}

static void esp_zb_task(void *pvParameters)
{
    /* initialize Zigbee stack */
    esp_zb_cfg_t zb_nwk_cfg = ESP_ZB_ZC_CONFIG();
    esp_zb_init(&zb_nwk_cfg);
    esp_zb_set_primary_network_channel_set(ESP_ZB_PRIMARY_CHANNEL_MASK);
    ESP_ERROR_CHECK(esp_zb_start(false));
    esp_zb_main_loop_iteration();
}

void app_main(void)
{
    esp_zb_platform_config_t config = {
        .radio_config = ESP_ZB_DEFAULT_RADIO_CONFIG(),
        .host_config = ESP_ZB_DEFAULT_HOST_CONFIG(),
    };

    ESP_ERROR_CHECK(esp_zb_platform_config(&config));
    ESP_ERROR_CHECK(nvs_flash_init());
    ESP_ERROR_CHECK(esp_netif_init());
    ESP_ERROR_CHECK(esp_event_loop_create_default());
#if CONFIG_ESP_CONSOLE_USB_SERIAL_JTAG
    ESP_ERROR_CHECK(esp_zb_gateway_console_init());
#endif
#if CONFIG_EXAMPLE_CONNECT_WIFI
    ESP_ERROR_CHECK(example_connect());
#if CONFIG_ESP_COEX_SW_COEXIST_ENABLE
    ESP_ERROR_CHECK(esp_wifi_set_ps(WIFI_PS_MIN_MODEM));
    esp_coex_wifi_i154_enable();
#else
    ESP_ERROR_CHECK(esp_wifi_set_ps(WIFI_PS_NONE));
#endif
#endif
    xTaskCreate(esp_zb_task, "Zigbee_main", 4096, NULL, 5, NULL);
}