<template>
  <div class="p-2">
    <transition :enter-active-class="proxy?.animate.searchAnimate.enter" :leave-active-class="proxy?.animate.searchAnimate.leave">
      <div v-show="showSearch" class="mb-[10px]">
        <el-card shadow="hover">
          <el-form ref="queryFormRef" :model="queryParams" :inline="true">
            <el-form-item label="分类名称" prop="name">
              <el-input v-model="queryParams.name" placeholder="请输入分类名称" clearable @keyup.enter="handleQuery" />
            </el-form-item>
            <el-form-item label="唯一编码" prop="code">
              <el-input v-model="queryParams.code" placeholder="请输入唯一编码" clearable @keyup.enter="handleQuery" />
            </el-form-item>
            <el-form-item>
              <el-button type="primary" icon="Search" @click="handleQuery">搜索</el-button>
              <el-button icon="Refresh" @click="resetQuery">重置</el-button>
            </el-form-item>
          </el-form>
        </el-card>
      </div>
    </transition>

    <el-card shadow="never">
      <template #header>
        <el-row :gutter="10" class="mb8">
          <el-col :span="1.5">
            <el-button type="primary" plain icon="Plus" @click="handleAdd" v-hasPermi="['business:category:add']">新增</el-button>
          </el-col>
          <el-col :span="1.5">
            <el-button type="success" plain icon="Edit" :disabled="single" @click="handleUpdate()" v-hasPermi="['business:category:edit']"
              >修改</el-button
            >
          </el-col>
          <el-col :span="1.5">
            <el-button type="danger" plain icon="Delete" :disabled="multiple" @click="handleDelete()" v-hasPermi="['business:category:remove']"
              >删除</el-button
            >
          </el-col>
<!--          <el-col :span="1.5">
            <el-button type="warning" plain icon="Download" @click="handleExport" v-hasPermi="['system:category:export']">导出</el-button>
          </el-col>-->
          <right-toolbar v-model:showSearch="showSearch" @queryTable="getList"></right-toolbar>
        </el-row>
      </template>

      <el-table v-loading="loading" border :data="categoryList" @selection-change="handleSelectionChange">
        <el-table-column type="selection" width="55" align="center" />
        <el-table-column label="" align="center" prop="id" v-if="false" />
        <el-table-column label="分类名称" align="center" prop="name" />
        <el-table-column label="唯一编码" align="center" prop="code" />
        <el-table-column label="排序" align="center" prop="sort" />
        <el-table-column label="图标" align="center" prop="iconUrl" width="120">
          <template #default="scope">
            <img v-if="scope.row.iconUrl" :src="scope.row.iconUrl" alt="" style="width: 40px; height: 40px; object-fit: cover; border-radius: 4px" />
            <span v-else>无</span>
          </template>
        </el-table-column>
        <el-table-column label="是否显示" align="center" prop="isShow" />
        <el-table-column label="创建时间" align="center" prop="createdAt" width="180">
          <template #default="scope">
            <span>{{ parseTime(scope.row.createdAt, '{y}-{m}-{d} {h}:{i}:{s}') }}</span>
          </template>
        </el-table-column>
        <el-table-column label="操作" align="center" class-name="small-padding fixed-width">
          <template #default="scope">
            <el-tooltip content="修改" placement="top">
              <el-button link type="primary" icon="Edit" @click="handleUpdate(scope.row)" v-hasPermi="['business:category:edit']"></el-button>
            </el-tooltip>
            <el-tooltip content="删除" placement="top">
              <el-button link type="primary" icon="Delete" @click="handleDelete(scope.row)" v-hasPermi="['business:category:remove']"></el-button>
            </el-tooltip>
          </template>
        </el-table-column>
      </el-table>

      <pagination v-show="total > 0" :total="total" v-model:page="queryParams.pageNum" v-model:limit="queryParams.pageSize" @pagination="getList" />
    </el-card>
    <!-- 添加或修改新闻分类对话框 -->
    <el-dialog :title="dialog.title" v-model="dialog.visible" width="500px" append-to-body>
      <el-form ref="categoryFormRef" :model="form" :rules="rules" label-width="80px">
        <el-form-item label="分类名称" prop="name">
          <el-input v-model="form.name" placeholder="请输入分类名称" />
        </el-form-item>
        <el-form-item label="唯一编码" prop="code">
          <el-input v-model="form.code" placeholder="请输入唯一编码" />
        </el-form-item>
        <el-form-item label="排序" prop="sort">
          <el-input v-model="form.sort" placeholder="请输入排序，越大越靠前" />
        </el-form-item>
        <el-form-item label="图标" prop="iconUrl">
          <div class="upload-container">
            <el-upload
              class="upload-icon"
              action="#"
              :on-change="handleIconChange"
              :on-remove="handleIconRemove"
              :file-list="fileList"
              :auto-upload="false"
              :limit="1"
              accept="image/*"
            >
              <template #trigger>
                <el-button type="primary">点击选择图标</el-button>
              </template>

              <!-- 预览图区域 -->
              <template #default>
                <div class="preview-area" @click="handlePreviewClick">
                  <img
                    v-if="iconPreviewUrl || form.iconUrl"
                    :src="iconPreviewUrl || form.iconUrl"
                    alt="预览图"
                    style="max-width: 100px; max-height: 100px; margin-top: 10px; cursor: pointer"
                  />
                  <div v-else style="margin-top: 10px; color: #999">无</div>
                </div>
              </template>

              <template #tip>
                <div class="el-upload__tip">
                  <span v-if="fileList.length > 0">当前已选文件：{{ fileList[0].name }}</span>
                </div>
              </template>
            </el-upload>
          </div>
        </el-form-item>
        <el-form-item label="是否显示" prop="isShow">
          <el-radio-group v-model="form.isShow">
            <el-radio :label="1">是</el-radio>
            <el-radio :label="0">否</el-radio>
          </el-radio-group>
        </el-form-item>
      </el-form>
      <template #footer>
        <div class="dialog-footer">
          <el-button :loading="buttonLoading" type="primary" @click="submitForm">确 定</el-button>
          <el-button @click="cancel">取 消</el-button>
        </div>
      </template>
    </el-dialog>
  </div>
</template>

<script setup name="Category" lang="ts">
import { listCategory, getCategory, delCategory, addCategory, updateCategory } from '@/api/system/business/category';
import { CategoryVO, CategoryQuery, CategoryForm } from '@/api/system/business/category/types';
import { uploadTournament } from '@/api/system/business/tournaments';
const { proxy } = getCurrentInstance() as ComponentInternalInstance;

const categoryList = ref<CategoryVO[]>([]);
const buttonLoading = ref(false);
const loading = ref(true);
const showSearch = ref(true);
const ids = ref<Array<string | number>>([]);
const single = ref(true);
const multiple = ref(true);
const total = ref(0);

const queryFormRef = ref<ElFormInstance>();
const categoryFormRef = ref<ElFormInstance>();

const dialog = reactive<DialogOption>({
  visible: false,
  title: ''
});

const initFormData: CategoryForm = {
  id: undefined,
  name: undefined,
  code: undefined,
  sort: undefined,
  isShow: 1,
  createdAt: undefined,
  updatedAt: undefined
};
const data = reactive<PageData<CategoryForm, CategoryQuery>>({
  form: { ...initFormData },
  queryParams: {
    pageNum: 1,
    pageSize: 10,
    name: undefined,
    code: undefined,
    sort: undefined,
    isShow: undefined,
    createdAt: undefined,
    updatedAt: undefined,
    params: {}
  },
  rules: {
    id: [{ required: true, message: '不能为空', trigger: 'blur' }],
    name: [{ required: true, message: '分类名称不能为空', trigger: 'blur' }],
    code: [{ required: true, message: '唯一编码，用于前端请求，如 hot/sports不能为空', trigger: 'blur' }],
    sort: [
      { required: true, message: '排序不能为空', trigger: 'blur' },
      { pattern: /^[0-9]*$/, message: '只能输入数字', trigger: 'blur' }
    ]
  }
});

const { queryParams, form, rules } = toRefs(data);

/** 查询新闻分类列表 */
const getList = async () => {
  loading.value = true;
  const res = await listCategory(queryParams.value);
  categoryList.value = res.rows;
  total.value = res.total;
  loading.value = false;
};

/** 取消按钮 */
const cancel = () => {
  reset();
  dialog.visible = false;
};

/** 表单重置 */
const reset = () => {
  form.value = { ...initFormData };
  categoryFormRef.value?.resetFields();
  // 清空上传相关状态
  fileList.value = [];
  iconPreviewUrl.value = '';
  form.value.iconUrl = '';
};

/** 搜索按钮操作 */
const handleQuery = () => {
  queryParams.value.pageNum = 1;
  getList();
};

/** 重置按钮操作 */
const resetQuery = () => {
  queryFormRef.value?.resetFields();
  handleQuery();
};

/** 多选框选中数据 */
const handleSelectionChange = (selection: CategoryVO[]) => {
  ids.value = selection.map((item) => item.id);
  single.value = selection.length != 1;
  multiple.value = !selection.length;
};

/** 新增按钮操作 */
const handleAdd = () => {
  reset();
  dialog.visible = true;
  dialog.title = '添加新闻分类';
  // 清空上传相关状态
  fileList.value = [];
  iconPreviewUrl.value = '';
  form.value.iconUrl = '';
};

/** 修改按钮操作 */
const handleUpdate = async (row?: CategoryVO) => {
  reset();
  const _id = row?.id || ids.value[0];
  const res = await getCategory(_id);
  Object.assign(form.value, res.data);
  // 设置预览图
  if (form.value.iconUrl) {
    iconPreviewUrl.value = form.value.iconUrl;
  }
  dialog.visible = true;
  dialog.title = '修改新闻分类';
};

/** 提交按钮 */
const submitForm = () => {
  categoryFormRef.value?.validate(async (valid: boolean) => {
    if (valid) {
      buttonLoading.value = true;
      if (form.value.id) {
        await updateCategory(form.value).finally(() => (buttonLoading.value = false));
      } else {
        await addCategory(form.value).finally(() => (buttonLoading.value = false));
      }
      proxy?.$modal.msgSuccess('操作成功');
      dialog.visible = false;
      await getList();
    }
  });
};

/** 删除按钮操作 */
const handleDelete = async (row?: CategoryVO) => {
  const _ids = row?.id || ids.value;
  await proxy?.$modal.confirm('是否确认删除新闻分类编号为"' + _ids + '"的数据项？').finally(() => (loading.value = false));
  await delCategory(_ids);
  proxy?.$modal.msgSuccess('删除成功');
  await getList();
};

/** 导出按钮操作 */
const handleExport = () => {
  proxy?.download(
    'business/category/export',
    {
      ...queryParams.value
    },
    `category_${new Date().getTime()}.xlsx`
  );
};

onMounted(() => {
  getList();
});

// 添加响应式变量（在其他ref声明附近添加）
const iconPreviewUrl = ref('');
const fileList = ref([]);
const dialogVisible = ref(false);
const previewSrc = ref('');

/** 处理图标上传 */
const handleIconChange = async (file) => {
  const index = fileList.value.findIndex((f) => f.uid === file.uid);
  fileList.value = [];

  if (file.raw) {
    iconPreviewUrl.value = URL.createObjectURL(file.raw);
  }

  if (index === -1) {
    fileList.value.push(file);
  }

  try {
    const rawFile = file.raw;
    const res = await uploadTournament(rawFile);
    if (res.code === 200) {
      fileList.value[index] = {
        ...file,
        status: 'success',
        response: res.data.url
      };
      form.value.iconUrl = fileList.value[index].response;
      iconPreviewUrl.value = fileList.value[index].response;
      proxy?.$modal.msgSuccess('上传成功');
    } else {
      throw new Error(res.msg);
    }
  } catch (error) {
    fileList.value[index] = {
      ...file,
      status: 'fail',
      error: '上传失败'
    };
    proxy?.$modal.msgError('上传失败，请重试');
  }
};

/** 处理图标删除 */
const handleIconRemove = (file, updatedFileList) => {
  fileList.value = updatedFileList;
  iconPreviewUrl.value = '';
  form.value.iconUrl = '';
};

/** 点击预览图触发放大 */
const handlePreviewClick = () => {
  const currentSrc = iconPreviewUrl.value || form.value.iconUrl;
  if (currentSrc) {
    previewSrc.value = currentSrc;
    dialogVisible.value = true;
  }
};
</script>
