package com.label.unit;

import com.label.module.annotation.controller.ExtractionController;
import com.label.module.annotation.controller.QaController;
import com.label.module.config.controller.SysConfigController;
import com.label.module.export.controller.ExportController;
import com.label.module.source.controller.SourceController;
import com.label.module.source.dto.SourceResponse;
import com.label.module.task.controller.TaskController;
import com.label.module.task.dto.TaskResponse;
import com.label.module.user.controller.AuthController;
import com.label.module.user.controller.UserController;
import com.label.module.user.dto.LoginRequest;
import com.label.module.user.dto.LoginResponse;
import com.label.module.user.dto.UserInfoResponse;
import com.label.module.video.controller.VideoController;
import io.swagger.v3.oas.annotations.Operation;
import io.swagger.v3.oas.annotations.media.Schema;
import io.swagger.v3.oas.annotations.tags.Tag;
import org.junit.jupiter.api.DisplayName;
import org.junit.jupiter.api.Test;
import org.springframework.web.bind.annotation.DeleteMapping;
import org.springframework.web.bind.annotation.GetMapping;
import org.springframework.web.bind.annotation.PostMapping;
import org.springframework.web.bind.annotation.PutMapping;
import org.springframework.web.bind.annotation.RequestMapping;

import java.lang.reflect.Method;
import java.lang.reflect.Modifier;
import java.util.Arrays;
import java.util.List;

import static org.assertj.core.api.Assertions.assertThat;

@DisplayName("OpenAPI 注解覆盖测试")
class OpenApiAnnotationTest {

    private static final List<Class<?>> CONTROLLERS = List.of(
            AuthController.class,
            UserController.class,
            SourceController.class,
            TaskController.class,
            ExtractionController.class,
            QaController.class,
            ExportController.class,
            SysConfigController.class,
            VideoController.class
    );

    private static final List<Class<?>> DTOS = List.of(
            LoginRequest.class,
            LoginResponse.class,
            UserInfoResponse.class,
            TaskResponse.class,
            SourceResponse.class
    );

    @Test
    @DisplayName("所有 REST Controller 都声明 @Tag")
    void allControllersHaveTag() {
        assertThat(CONTROLLERS)
                .allSatisfy(controller ->
                        assertThat(controller.getAnnotation(Tag.class))
                                .as(controller.getSimpleName() + " should have @Tag")
                                .isNotNull());
    }

    @Test
    @DisplayName("所有 REST endpoint 方法都声明 @Operation")
    void allEndpointMethodsHaveOperation() {
        for (Class<?> controller : CONTROLLERS) {
            Arrays.stream(controller.getDeclaredMethods())
                    .filter(method -> !Modifier.isPrivate(method.getModifiers()))
                    .filter(OpenApiAnnotationTest::isEndpointMethod)
                    .forEach(method -> assertThat(method.getAnnotation(Operation.class))
                            .as(controller.getSimpleName() + "." + method.getName() + " should have @Operation")
                            .isNotNull());
        }
    }

    @Test
    @DisplayName("核心 DTO 都声明 @Schema")
    void coreDtosHaveSchema() {
        assertThat(DTOS)
                .allSatisfy(dto ->
                        assertThat(dto.getAnnotation(Schema.class))
                                .as(dto.getSimpleName() + " should have @Schema")
                                .isNotNull());
    }

    private static boolean isEndpointMethod(Method method) {
        return method.isAnnotationPresent(GetMapping.class)
                || method.isAnnotationPresent(PostMapping.class)
                || method.isAnnotationPresent(PutMapping.class)
                || method.isAnnotationPresent(DeleteMapping.class)
                || method.isAnnotationPresent(RequestMapping.class);
    }
}