<template>
  <full-page :customScroll="true" pageStyle="background:#f5f5f5">
    <template #header>
      <view class="header">
        <view class="search-bar">
          <uni-icons type="search" size="18" color="#999" />
          <input class="search-input" v-model="searchTitle" placeholder="输入内容名称搜索" @input="handleSearch" />
        </view>
      </view>
    </template>

    <view class="h-full flex">
      <scroll-view scroll-y class="flex-shrink-0 category-sidebar h-full">
        <view v-for="cate in categoryList" :key="cate._id || 'all'" class="category-item"
          :class="{ active: currentCateId === cate._id }" @click="selectCategory(cate)">
          {{ cate.label }}
        </view>
      </scroll-view>
      <scroll-view scroll-y class="w-0 flex-grow bg-white" @scrolltolower="loadMore" lower-threshold="50">
        <view v-if="loading && articleList.length === 0" class="loading-container">
          <uni-icons type="spinner-cycle" size="30" color="#999" />
          <text class="loading-text">加载中...</text>
        </view>

        <view v-else-if="articleList.length === 0" class="empty-container">
          <empty-data title="暂无文章" />
        </view>

        <view v-else>
          <view v-for="article in articleList" :key="article._id" class="article-item">
            <view class="article-content" @click="previewArticle(article)">
              <text class="article-title">{{ article.title }}</text>
              <view class="article-footer">
                <text class="article-date">{{ article.date }}</text>
                <button class="send-btn" size="mini" type="primary" @click.stop="handlePrimaryAction(article)">
                  {{ isSelectMode ? '选择' : '发送' }}
                </button>
              </view>
            </view>
          </view>

          <view v-if="loading && articleList.length > 0" class="loading-more">
            <uni-icons type="spinner-cycle" size="20" color="#999" />
            <text>加载中...</text>
          </view>

          <view v-if="!loading && articleList.length >= total" class="no-more">
            没有更多了
          </view>
        </view>
      </scroll-view>
    </view>

    <template #footer>
      <view class="relative shadow-up bg-white">
        <view class="p-15 text-center" @click="toService()">
          <text class="mr-5 text-base text-gray">如没有符合的内容，请</text>
          <text class="text-base text-primary">联系客服</text>
        </view>
      </view>
    </template>
  </full-page>
  <!-- 文章预览弹窗 -->
  <uni-popup ref="previewPopup" type="bottom" :safe-area="false">
    <view class="preview-container">
      <view class="preview-header">
        <text class="preview-title">{{ previewArticleData.title }}</text>
        <view class="preview-close" @click="closePreview">
          <uni-icons type="closeempty" size="24" color="#333" />
        </view>
      </view>
      <scroll-view scroll-y class="preview-content">
        <view class="rich-text-wrapper">
          <rich-text :nodes="previewArticleData.content"></rich-text>
        </view>
      </scroll-view>
      <view class="preview-footer">
        <button class="preview-close-btn" @click="closePreview">关闭</button>
      </view>
    </view>
  </uni-popup>
</template>

<script setup>
import { ref, onMounted } from "vue";
import { onLoad } from "@dcloudio/uni-app";
import api from "@/utils/api.js";
import useAccountStore from "@/store/account.js";
import { sendArticleMessage } from "@/utils/send-message-helper.js";
import fullPage from '@/components/full-page.vue';
import EmptyData from "@/components/empty-data.vue";

const accountStore = useAccountStore();
const env = __VITE_ENV__;
const corpId = env.MP_CORP_ID;

// 从页面参数获取群组信息
const pageParams = ref({
  groupId: "",
  patientId: "",
  corpId: "",
  teamId: "",
});

const ensureTeamId = async () => {
  if (pageParams.value.teamId) return pageParams.value.teamId;
  if (!pageParams.value.groupId) return "";
  try {
    const res = await api("getGroupListByGroupId", { groupId: pageParams.value.groupId }, false);
    const team = res?.data?.team || {};
    const resolved = res?.data?.teamId || team.teamId || team._id || "";
    if (resolved) pageParams.value.teamId = resolved;
    return pageParams.value.teamId;
  } catch (err) {
    console.error("ensureTeamId failed:", err);
    return "";
  }
};

const isSelectMode = ref(false);
const selectEventName = ref("");

// 搜索关键词
const searchTitle = ref("");
let searchTimer = null;

// 分类列表
const categoryList = ref([{ _id: "", label: "全部" }]);
const currentCateId = ref(""); // 默认选中"全部"（_id 为空字符串）

// 文章列表
const articleList = ref([]);
const loading = ref(false);
const page = ref(1);
const pageSize = 30;
const total = ref(0);

// 预览文章数据
const previewArticleData = ref({
  title: "",
  content: "",
});
const previewPopup = ref(null);

// 获取分类列表
const getCategoryList = async () => {
  try {
    const res = await api("getArticleCateList", { corpId: corpId });
    if (res.success && res.list) {
      const cates = res.list || [];
      categoryList.value = [{ _id: "", label: "全部" }, ...cates];
    }
  } catch (error) {
    console.error("获取分类列表失败:", error);
  }
};

// 选择分类
const selectCategory = (cate) => {
  currentCateId.value = cate._id || "";
  page.value = 1;
  articleList.value = [];
  loadArticleList();
};

// 搜索处理
const handleSearch = () => {
  if (searchTimer) {
    clearTimeout(searchTimer);
  }
  searchTimer = setTimeout(() => {
    page.value = 1;
    articleList.value = [];
    loadArticleList();
  }, 500);
};

// 加载文章列表
const loadArticleList = async () => {
  if (loading.value) return;

  loading.value = true;
  try {
    const params = {
      corpId: corpId,
      page: page.value,
      pageSize: pageSize,
      enable: true,
      title: searchTitle.value,
    };

    // 如果选择了分类，添加分类ID
    if (currentCateId.value) {
      params.cateIds = [currentCateId.value];
    }

    const res = await api("getArticleList", params);
    if (res.success && res.list) {
      const { list = [], total: count = 0 } = res;
      const formattedList = list.map((item) => {
        // 格式化日期
        let date = "";
        if (item.createTime) {
          const d = new Date(item.createTime);
          const year = d.getFullYear();
          const month = String(d.getMonth() + 1).padStart(2, "0");
          const day = String(d.getDate()).padStart(2, "0");
          date = `${year}-${month}-${day}`;
        }
        return {
          ...item,
          date,
        };
      });

      if (page.value === 1) {
        articleList.value = formattedList;
      } else {
        articleList.value = [...articleList.value, ...formattedList];
      }
      total.value = count;
    } else {
      uni.showToast({
        title: res.message || "获取文章列表失败",
        icon: "none",
      });
    }
  } catch (error) {
    console.error("加载文章列表失败:", error);
    uni.showToast({
      title: "加载失败，请重试",
      icon: "none",
    });
  } finally {
    loading.value = false;
  }
};

// 加载更多
const loadMore = () => {
  if (loading.value || articleList.value.length >= total.value) return;
  page.value += 1;
  loadArticleList();
};

// 处理富文本内容，使图片自适应
const processRichTextContent = (html) => {
  if (!html) return "";

  // 给所有 img 标签添加样式
  let processedHtml = html.replace(
    /<img/gi,
    '<img style="max-width:100%;height:auto;display:block;margin:10px 0;"'
  );

  // 移除可能存在的固定宽度样式
  processedHtml = processedHtml.replace(
    /style="[^"]*width:\s*\d+px[^"]*"/gi,
    (match) => {
      return match.replace(/width:\s*\d+px;?/gi, "max-width:100%;");
    }
  );

  // 处理表格，添加自适应样式
  processedHtml = processedHtml.replace(
    /<table/gi,
    '<table style="max-width:100%;overflow-x:auto;display:block;"'
  );

  // 给整体内容添加容器样式
  processedHtml = `<div style="width:100%;overflow-x:hidden;word-wrap:break-word;word-break:break-all;">${processedHtml}</div>`;

  return processedHtml;
};

// 预览文章
const previewArticle = async (article) => {
  try {
    uni.showLoading({ title: "加载中..." });
    const res = await api("getArticle", { id: article._id, corpId: corpId });
    uni.hideLoading();

    if (res.success && res.data) {
      previewArticleData.value = {
        title: res.data.title || article.title,
        content: processRichTextContent(res.data.content || ""),
      };
      previewPopup.value?.open();
    } else {
      uni.showToast({
        title: res.message || "预览文章失败",
        icon: "none",
      });
    }
  } catch (error) {
    uni.hideLoading();
    console.error("预览文章失败:", error);
    uni.showToast({
      title: "预览失败，请重试",
      icon: "none",
    });
  }
};

// 关闭预览
const closePreview = () => {
  previewPopup.value?.close();
};

const selectArticle = (article) => {
  if (!selectEventName.value) {
    uni.showToast({ title: "缺少 eventName", icon: "none" });
    return;
  }
  uni.$emit(selectEventName.value, article);
  uni.navigateBack();
};

const handlePrimaryAction = (article) => {
  if (isSelectMode.value) return selectArticle(article);
  return sendArticle(article);
};

// 发送文章
const sendArticle = async (article) => {
  try {
    const { doctorInfo } = useAccountStore();

    await ensureTeamId();
    // 使用统一的消息发送助手
    const success = await sendArticleMessage(
      {
        _id: article._id,
        title: article.title || "宣教文章",
        cover: article.cover || "",
        url: article.url || "",
        subtitle: article.subtitle || "",
        wechatChannels: article.wechatChannels,
      },
      {
        articleId: article._id,
        userId: doctorInfo?.userid,
        customerId: pageParams.value.patientId,
        corpId: corpId,
        teamId: pageParams.value.teamId,
      }
    );

    if (success) {
      uni.navigateBack();
    }
  } catch (error) {
    console.error("发送文章失败:", error);
    uni.showToast({
      title: error.message || "发送失败",
      icon: "none",
    });
  } finally {
    loading.value = false;
  }
};

function toService() {
  uni.navigateTo({
    url: '/pages/work/service/contact-service'
  })
}

// 返回
const goBack = () => {
  uni.navigateBack();
};

// 页面加载时接收参数
onLoad((options) => {
  isSelectMode.value = String(options?.select || '') === '1';
  selectEventName.value = String(options?.eventName || '');
  if (options.groupId) {
    pageParams.value.groupId = options.groupId;
  }
  if (options.patientId) {
    pageParams.value.patientId = options.patientId;
  }
  if (options.corpId) {
    pageParams.value.corpId = options.corpId;
  }
  if (options.teamId) {
    pageParams.value.teamId = options.teamId;
  }
  ensureTeamId();
});

onMounted(() => {
  getCategoryList();
  loadArticleList();
});
</script>

<style scoped lang="scss">
.article-page {
  display: flex;
  flex-direction: column;
  height: 100vh;
  background-color: #f5f5f5;
}

.header {
  background-color: #fff;
  padding: 20rpx;
  border-bottom: 1px solid #eee;
}

.search-bar {
  display: flex;
  align-items: center;
  background-color: #f5f5f5;
  border-radius: 8rpx;
  padding: 16rpx 24rpx;
}

.search-input {
  flex: 1;
  margin-left: 16rpx;
  font-size: 28rpx;
}

.content {
  flex: 1;
  display: flex;
  overflow: hidden;
}

.category-sidebar {
  width: 200rpx;
  background-color: #f8f8f8;
  border-right: 1px solid #eee;
}



.category-item {
  padding: 20rpx 24rpx;
  font-size: 28rpx;
  color: #333;
  text-align: center;
  border-bottom: 1px solid #eee;
  transition: all 0.3s ease;
  position: relative;
}

.category-item.active {
  background-color: #fff;
  color: #0877f1;
  font-weight: bold;
  border-left: 4rpx solid #0877f1;
}


.loading-container,
.empty-container {
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  padding: 100rpx 0;
}

.loading-text {
  margin-top: 20rpx;
  font-size: 28rpx;
  color: #999;
}

.article-item {
  padding: 24rpx 30rpx;
  border-bottom: 1px solid #eee;
  transition: background-color 0.2s ease;
}

.article-item:active {
  background-color: #f5f5f5;
}

.article-content {
  display: flex;
  flex-direction: column;
  gap: 16rpx;
}

.article-title {
  font-size: 28rpx;
  color: #333;
  line-height: 1.6;
  word-break: break-all;
  font-weight: 500;
}

.article-footer {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 20rpx;
}

.article-date {
  flex: 1;
  font-size: 24rpx;
  color: #999;
}

.send-btn {
  flex-shrink: 0;
  font-size: 26rpx;
  padding: 8rpx 32rpx;
  height: auto;
  line-height: 1.4;
}

.loading-more,
.no-more {
  display: flex;
  align-items: center;
  justify-content: center;
  padding: 30rpx 0;
  font-size: 24rpx;
  color: #999;
  gap: 10rpx;
}

.footer {
  background-color: #fff;
  padding: 20rpx;
  border-top: 1px solid #eee;
}

.cancel-btn {
  width: 100%;
  background-color: #fff;
  color: #333;
  border: 1px solid #ddd;
}

/* 预览弹窗样式 */
.preview-container {
  background-color: #fff;
  border-radius: 20rpx 20rpx 0 0;
  height: 80vh;
  display: flex;
  flex-direction: column;
}

.preview-header {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 30rpx;
  border-bottom: 1px solid #eee;
}

.preview-title {
  flex: 1;
  font-size: 32rpx;
  font-weight: bold;
  color: #333;
}

.preview-close {
  padding: 10rpx;
}

.preview-content {
  flex: 1;
  padding: 0;
  overflow-y: auto;
}

.rich-text-wrapper {
  padding: 30rpx;
  width: 100%;
  box-sizing: border-box;
  overflow: hidden;
}

/* rich-text 内部样式 */
.rich-text-wrapper ::v-deep rich-text {
  width: 100%;
}

.rich-text-wrapper ::v-deep rich-text img {
  max-width: 100% !important;
  height: auto !important;
  display: block;
}

.preview-footer {
  padding: 20rpx;
  border-top: 1px solid #eee;
}

.preview-close-btn {
  width: 100%;
  background-color: #1890ff;
  color: #fff;
}
</style>
