package com.yunhai.cms.service.impl;

import com.yunhai.cms.entity.CmsArticle;
import com.yunhai.cms.entity.CmsBanner;
import com.yunhai.cms.enums.ArticleStatusEnum;
import com.yunhai.cms.enums.CategoryTypeEnum;
import com.yunhai.cms.model.dto.ArticleSaveRequest;
import com.yunhai.cms.model.dto.BannerSaveRequest;
import com.yunhai.cms.model.dto.CategorySaveRequest;
import com.yunhai.cms.model.dto.DeleteRequest;
import com.yunhai.cms.support.CmsIntegrationTestBase;
import com.yunhai.cms.support.TestUsers;
import com.yunhai.platform.apistd.BizException;
import org.junit.jupiter.api.BeforeEach;
import org.junit.jupiter.api.DisplayName;
import org.junit.jupiter.api.Test;
import org.springframework.beans.factory.annotation.Autowired;
import org.springframework.transaction.annotation.Transactional;

import java.time.LocalDateTime;

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

/**
 * 脏数据健壮性回归（第 2 步 bug 清单 D-3/D-4/D-5/D-6）：
 * 非法枚举码显式拒绝、定时时间窗校验、删除时轮播引用拦截（统一"被引用即拦"规则）。
 */
@DisplayName("脏数据校验 - 枚举/时间窗/删除引用拦截")
@Transactional
class DirtyValidationIT extends CmsIntegrationTestBase {

    @Autowired
    private ArticleService articleService;
    @Autowired
    private CategoryService categoryService;
    @Autowired
    private BannerService bannerService;

    private Integer siteId;
    private Integer categoryId;

    @BeforeEach
    void seed() {
        siteId = persistSite("dirty1", 1, "脏数据演示站").getId();
        categoryId = persistCategory(siteId, 0, "新闻", CategoryTypeEnum.LIST).getId();
    }

    private CategorySaveRequest catReq(Integer type) {
        CategorySaveRequest r = new CategorySaveRequest();
        r.setSiteId(siteId);
        r.setParentId(0);
        r.setName("新栏目");
        r.setType(type);
        return r;
    }

    // ===== D-4 非法枚举码 =====

    @Test
    @DisplayName("栏目 type=9 显式拒绝（不再静默降级为列表栏目）")
    void categorySave_illegalType_rejected() {
        CategorySaveRequest r = catReq(9);
        assertThatThrownBy(() -> categoryService.save(TestUsers.superAdmin(), r))
                .isInstanceOf(BizException.class)
                .hasMessageContaining("栏目类型非法");
    }

    @Test
    @DisplayName("轮播 linkType=9 显式拒绝（不再误报\"跳转目标必须是数字 ID\"）")
    void bannerSave_illegalLinkType_rejected() {
        BannerSaveRequest r = new BannerSaveRequest();
        r.setSiteId(siteId);
        r.setPosition("home");
        r.setTitle("t");
        r.setImageUrl("/upload/x.png");
        r.setLinkType(9);
        r.setLinkValue("https://example.cn");
        assertThatThrownBy(() -> bannerService.save(TestUsers.superAdmin(), r))
                .isInstanceOf(BizException.class)
                .hasMessageContaining("跳转类型非法");
    }

    // ===== D-5 定时时间窗 =====

    @Test
    @DisplayName("保存：offlineTime 早于 publishTime 显式拒绝（状态机自洽）")
    void articleSave_offlineBeforePublish_rejected() {
        ArticleSaveRequest r = new ArticleSaveRequest();
        r.setSiteId(siteId);
        r.setCategoryId(categoryId);
        r.setTitle("时间矛盾");
        r.setPublishTime(LocalDateTime.of(2026, 12, 1, 0, 0));
        r.setOfflineTime(LocalDateTime.of(2026, 11, 1, 0, 0));
        assertThatThrownBy(() -> articleService.save(TestUsers.superAdmin(), r))
                .isInstanceOf(BizException.class)
                .hasMessageContaining("定时下架时间必须晚于发布时间");
    }

    @Test
    @DisplayName("发布：过期 offlineTime 自愈清空（重发=新生命周期，不再被调度器立即下架）")
    void publish_staleOfflineTime_cleared() {
        Integer id = articleService.save(TestUsers.superAdmin(), draftReq());
        // 直接落库一个矛盾历史数据（模拟脏数据）：offlineTime 已过
        articleRepository.findById(id).ifPresent(a -> {
            a.setOfflineTime(LocalDateTime.now().minusDays(1));
            articleRepository.saveAndFlush(a);
        });
        articleService.publish(TestUsers.superAdmin(), siteId, id);
        CmsArticle after = articleRepository.findById(id).orElseThrow(IllegalStateException::new);
        assertThat(after.getStatus()).isEqualTo(ArticleStatusEnum.PUBLISHED.getCode());
        assertThat(after.getOfflineTime()).isNull();
    }

    private ArticleSaveRequest draftReq() {
        ArticleSaveRequest r = new ArticleSaveRequest();
        r.setSiteId(siteId);
        r.setCategoryId(categoryId);
        r.setTitle("普通草稿");
        r.setContent("<p>正文</p>");
        return r;
    }

    // ===== D-6 删除时轮播引用拦截 =====

    @Test
    @DisplayName("删除文章：被轮播引用时拦截并提示")
    void articleDelete_blockedByBannerReference() {
        Integer articleId = articleService.save(TestUsers.superAdmin(), draftReq());
        persistBannerRef(1, String.valueOf(articleId));
        DeleteRequest req = new DeleteRequest();
        req.setSiteId(siteId);
        req.setId(articleId);
        assertThatThrownBy(() -> articleService.delete(TestUsers.superAdmin(), req))
                .isInstanceOf(BizException.class)
                .hasMessageContaining("轮播");
    }

    @Test
    @DisplayName("删除栏目：被轮播引用时拦截并提示（与子栏目/文章拦截同一规则）")
    void categoryDelete_blockedByBannerReference() {
        persistBannerRef(2, String.valueOf(categoryId));
        DeleteRequest req = new DeleteRequest();
        req.setSiteId(siteId);
        req.setId(categoryId);
        assertThatThrownBy(() -> categoryService.delete(TestUsers.superAdmin(), req))
                .isInstanceOf(BizException.class)
                .hasMessageContaining("轮播");
    }

    @Test
    @DisplayName("删除文章：无轮播引用时正常删除（不误拦）")
    void articleDelete_withoutReference_succeeds() {
        Integer articleId = articleService.save(TestUsers.superAdmin(), draftReq());
        DeleteRequest req = new DeleteRequest();
        req.setSiteId(siteId);
        req.setId(articleId);
        articleService.delete(TestUsers.superAdmin(), req);
        assertThat(articleRepository.findById(articleId)).isEmpty();
    }

    private void persistBannerRef(int linkType, String linkValue) {
        CmsBanner b = new CmsBanner();
        b.setSiteId(siteId);
        b.setPosition("home");
        b.setTitle("引用型轮播");
        b.setImageUrl("/upload/banner.png");
        b.setLinkType(linkType);
        b.setLinkValue(linkValue);
        b.setSortNo(1);
        b.setStatus(1);
        bannerRepository.saveAndFlush(b);
    }
}