package cn.iocoder.yudao.module.iot.gateway.protocol.coap;

import cn.hutool.core.map.MapUtil;
import cn.hutool.core.util.IdUtil;
import cn.iocoder.yudao.framework.common.util.json.JsonUtils;
import cn.iocoder.yudao.module.iot.core.biz.dto.IotDeviceAuthReqDTO;
import cn.iocoder.yudao.module.iot.core.enums.IotDeviceMessageMethodEnum;
import cn.iocoder.yudao.module.iot.core.topic.event.IotDeviceEventPostReqDTO;
import cn.iocoder.yudao.module.iot.core.topic.property.IotDevicePropertyPostReqDTO;
import cn.iocoder.yudao.module.iot.core.util.IotDeviceAuthUtils;
import lombok.extern.slf4j.Slf4j;
import org.eclipse.californium.core.CoapClient;
import org.eclipse.californium.core.CoapResponse;
import org.eclipse.californium.core.coap.MediaTypeRegistry;
import org.eclipse.californium.core.coap.Option;
import org.eclipse.californium.core.coap.Request;
import org.eclipse.californium.core.config.CoapConfig;
import org.eclipse.californium.elements.config.Configuration;
import org.eclipse.californium.elements.config.UdpConfig;
import org.junit.jupiter.api.BeforeAll;
import org.junit.jupiter.api.Disabled;
import org.junit.jupiter.api.Test;

import static cn.iocoder.yudao.module.iot.gateway.protocol.coap.handler.upstream.IotCoapAbstractHandler.OPTION_TOKEN;

/**
 * IoT 网关子设备 CoAP 协议集成测试（手动测试）
 *
 * <p>测试场景：子设备（IotProductDeviceTypeEnum 的 SUB 类型）通过网关设备代理上报数据
 *
 * <p><b>重要说明：子设备无法直接连接平台，所有请求均由网关设备（Gateway）代为转发。</b>
 * <p>网关设备转发子设备请求时，Token 使用子设备自己的信息。
 *
 * <p>使用步骤：
 * <ol>
 *     <li>启动 yudao-module-iot-gateway 服务（CoAP 端口 5683）</li>
 *     <li>确保子设备已通过 {@link IotGatewayDeviceCoapProtocolIntegrationTest#testTopoAdd()} 绑定到网关</li>
 *     <li>运行 {@link #testAuth()} 获取子设备 token，将返回的 token 粘贴到 {@link #TOKEN} 常量</li>
 *     <li>运行以下测试方法：
 *         <ul>
 *             <li>{@link #testPropertyPost()} - 子设备属性上报（由网关代理转发）</li>
 *             <li>{@link #testEventPost()} - 子设备事件上报（由网关代理转发）</li>
 *         </ul>
 *     </li>
 * </ol>
 *
 * @author 芋道源码
 */
@Slf4j
@Disabled
public class IotGatewaySubDeviceCoapProtocolIntegrationTest {

    private static final String SERVER_HOST = "127.0.0.1";
    private static final int SERVER_PORT = 5683;

    // ===================== 网关子设备信息（根据实际情况修改，从 iot_device 表查询子设备） =====================

    private static final String PRODUCT_KEY = "jAufEMTF1W6wnPhn";
    private static final String DEVICE_NAME = "chazuo-it";
    private static final String DEVICE_SECRET = "d46ef9b28ab14238b9c00a3a668032af";

    /**
     * 网关子设备 Token：从 {@link #testAuth()} 方法获取后，粘贴到这里
     */
    private static final String TOKEN = "eyJhbGciOiJIUzI1NiIsInR5cCI6IkpXVCJ9.eyJwcm9kdWN0S2V5IjoiakF1ZkVNVEYxVzZ3blBobiIsImV4cCI6MTc2OTk1NDY3OSwiZGV2aWNlTmFtZSI6ImNoYXp1by1pdCJ9.jfbUAoU0xkJl4UvO-NUvcJ6yITPRgUjQ4MKATPuwneg";

    @BeforeAll
    public static void initCaliforniumConfig() {
        // 注册 Californium 配置定义
        CoapConfig.register();
        UdpConfig.register();
        // 创建默认配置
        Configuration.setStandard(Configuration.createStandardWithoutFile());
    }

    // ===================== 认证测试 =====================

    /**
     * 子设备认证测试：获取子设备 Token
     */
    @Test
    public void testAuth() throws Exception {
        // 1.1 构建请求
        String uri = String.format("coap://%s:%d/auth", SERVER_HOST, SERVER_PORT);
        IotDeviceAuthReqDTO authInfo = IotDeviceAuthUtils.getAuthInfo(PRODUCT_KEY, DEVICE_NAME, DEVICE_SECRET);
        IotDeviceAuthReqDTO authReqDTO = new IotDeviceAuthReqDTO()
                .setClientId(authInfo.getClientId())
                .setUsername(authInfo.getUsername())
                .setPassword(authInfo.getPassword());
        String payload = JsonUtils.toJsonString(authReqDTO);
        // 1.2 输出请求
        log.info("[testAuth][请求 URI: {}]", uri);
        log.info("[testAuth][请求体: {}]", payload);

        // 2.1 发送请求
        CoapClient client = new CoapClient(uri);
        try {
            CoapResponse response = client.post(payload, MediaTypeRegistry.APPLICATION_JSON);
            // 2.2 输出结果
            log.info("[testAuth][响应码: {}]", response.getCode());
            log.info("[testAuth][响应体: {}]", response.getResponseText());
            log.info("[testAuth][请将返回的 token 复制到 TOKEN 常量中]");
        } finally {
            client.shutdown();
        }
    }

    // ===================== 子设备属性上报测试 =====================

    /**
     * 子设备属性上报测试
     */
    @Test
    @SuppressWarnings("deprecation")
    public void testPropertyPost() throws Exception {
        // 1.1 构建请求
        String uri = String.format("coap://%s:%d/topic/sys/%s/%s/thing/property/post",
                SERVER_HOST, SERVER_PORT, PRODUCT_KEY, DEVICE_NAME);
        String payload = JsonUtils.toJsonString(MapUtil.builder()
                .put("id", IdUtil.fastSimpleUUID())
                .put("method", IotDeviceMessageMethodEnum.PROPERTY_POST.getMethod())
                .put("version", "1.0")
                .put("params", IotDevicePropertyPostReqDTO.of(MapUtil.<String, Object>builder()
                        .put("power", 100)
                        .put("status", "online")
                        .put("temperature", 36.5)
                        .build()))
                .build());
        // 1.2 输出请求
        log.info("[testPropertyPost][子设备属性上报 - 请求实际由 Gateway 代为转发]");
        log.info("[testPropertyPost][请求 URI: {}]", uri);
        log.info("[testPropertyPost][请求体: {}]", payload);

        // 2.1 发送请求
        CoapClient client = new CoapClient(uri);
        try {
            Request request = Request.newPost();
            request.setURI(uri);
            request.setPayload(payload);
            request.getOptions().setContentFormat(MediaTypeRegistry.APPLICATION_JSON);
            request.getOptions().addOption(new Option(OPTION_TOKEN, TOKEN));

            CoapResponse response = client.advanced(request);
            // 2.2 输出结果
            log.info("[testPropertyPost][响应码: {}]", response.getCode());
            log.info("[testPropertyPost][响应体: {}]", response.getResponseText());
        } finally {
            client.shutdown();
        }
    }

    // ===================== 子设备事件上报测试 =====================

    /**
     * 子设备事件上报测试
     */
    @Test
    @SuppressWarnings("deprecation")
    public void testEventPost() throws Exception {
        // 1.1 构建请求
        String uri = String.format("coap://%s:%d/topic/sys/%s/%s/thing/event/post",
                SERVER_HOST, SERVER_PORT, PRODUCT_KEY, DEVICE_NAME);
        String payload = JsonUtils.toJsonString(MapUtil.builder()
                .put("id", IdUtil.fastSimpleUUID())
                .put("method", IotDeviceMessageMethodEnum.EVENT_POST.getMethod())
                .put("version", "1.0")
                .put("params", IotDeviceEventPostReqDTO.of(
                        "alarm",
                        MapUtil.<String, Object>builder()
                                .put("level", "warning")
                                .put("message", "temperature too high")
                                .put("threshold", 40)
                                .put("current", 42)
                                .build(),
                        System.currentTimeMillis()))
                .build());
        // 1.2 输出请求
        log.info("[testEventPost][子设备事件上报 - 请求实际由 Gateway 代为转发]");
        log.info("[testEventPost][请求 URI: {}]", uri);
        log.info("[testEventPost][请求体: {}]", payload);

        // 2.1 发送请求
        CoapClient client = new CoapClient(uri);
        try {
            Request request = Request.newPost();
            request.setURI(uri);
            request.setPayload(payload);
            request.getOptions().setContentFormat(MediaTypeRegistry.APPLICATION_JSON);
            request.getOptions().addOption(new Option(OPTION_TOKEN, TOKEN));

            CoapResponse response = client.advanced(request);
            // 2.2 输出结果
            log.info("[testEventPost][响应码: {}]", response.getCode());
            log.info("[testEventPost][响应体: {}]", response.getResponseText());
        } finally {
            client.shutdown();
        }
    }

}