/*
 *
 *    Copyright (c) 2021 Project CHIP Authors
 *
 *    Licensed under the Apache License, Version 2.0 (the "License");
 *    you may not use this file except in compliance with the License.
 *    You may obtain a copy of the License at
 *
 *        http://www.apache.org/licenses/LICENSE-2.0
 *
 *    Unless required by applicable law or agreed to in writing, software
 *    distributed under the License is distributed on an "AS IS" BASIS,
 *    WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
 *    See the License for the specific language governing permissions and
 *    limitations under the License.
 */
#include "esp_eth.h"
#include "esp_eth_mac.h"
#include "esp_eth_phy.h"
#include <platform/ESP32/NetworkCommissioningDriver.h>

using namespace ::chip;
using namespace ::chip::DeviceLayer::Internal;
namespace chip {
namespace DeviceLayer {
namespace NetworkCommissioning {

static void on_eth_event(void * esp_netif, esp_event_base_t event_base, int32_t event_id, void * event_data)
{
    switch (event_id)
    {
    case ETHERNET_EVENT_CONNECTED: {
        esp_netif_t * eth_netif = (esp_netif_t *) esp_netif;
        ChipLogProgress(DeviceLayer, "Ethernet Connected");
        ESP_ERROR_CHECK(esp_netif_create_ip6_linklocal(eth_netif));
    }
    break;
    default:
        break;
    }
}

CHIP_ERROR ESPEthernetDriver::Init(NetworkStatusChangeCallback * networkStatusChangeCallback)
{
    /* Currently default ethernet board supported is IP101, if you want to use other types of
     * ethernet board then you can override this function in your application. */

    esp_netif_config_t cfg  = ESP_NETIF_DEFAULT_ETH();
    esp_netif_t * eth_netif = esp_netif_new(&cfg);

    // Init MAC and PHY configs to default
    eth_mac_config_t mac_config               = ETH_MAC_DEFAULT_CONFIG();
    eth_phy_config_t phy_config               = ETH_PHY_DEFAULT_CONFIG();
    phy_config.phy_addr                       = CONFIG_ETH_PHY_ADDR;
    phy_config.reset_gpio_num                 = CONFIG_ETH_PHY_RST_GPIO;
    eth_esp32_emac_config_t esp32_emac_config = ETH_ESP32_EMAC_DEFAULT_CONFIG();
    esp32_emac_config.smi_mdc_gpio_num        = CONFIG_ETH_MDC_GPIO;
    esp32_emac_config.smi_mdio_gpio_num       = CONFIG_ETH_MDIO_GPIO;
    esp_eth_mac_t * mac                       = esp_eth_mac_new_esp32(&esp32_emac_config, &mac_config);
    esp_eth_phy_t * phy                       = esp_eth_phy_new_ip101(&phy_config);

    esp_eth_config_t config     = ETH_DEFAULT_CONFIG(mac, phy);
    esp_eth_handle_t eth_handle = NULL;
    ESP_ERROR_CHECK(esp_eth_driver_install(&config, &eth_handle));
    /* attach Ethernet driver to TCP/IP stack */
    ESP_ERROR_CHECK(esp_netif_attach(eth_netif, esp_eth_new_netif_glue(eth_handle)));

    ESP_ERROR_CHECK(esp_event_handler_register(ETH_EVENT, ETHERNET_EVENT_CONNECTED, &on_eth_event, eth_netif));

    ESP_ERROR_CHECK(esp_eth_start(eth_handle));

    return CHIP_NO_ERROR;
}

} // namespace NetworkCommissioning
} // namespace DeviceLayer
} // namespace chip