<template>
  <div class="navigation-page">
    <div class="navigation-container">
      <!-- 表格区域 -->
      <div class="table-card">
        <div class="table-header">
          <span class="table-title">首页导航信息列表</span>
          <div class="table-header-right">
            <el-button type="primary" icon="Plus" @click="handleAdd">新增</el-button>
            <el-button icon="Refresh" circle size="small" @click="getList" />
          </div>
        </div>

        <el-table v-loading="loading" :data="navList" border>
          <el-table-column label="导航标题" align="center" prop="title" min-width="120" />
          <el-table-column label="链接地址" align="center" prop="link" min-width="280">
            <template #default="scope">
              <el-link type="primary" :href="scope.row.link" target="_blank">{{ scope.row.link }}</el-link>
            </template>
          </el-table-column>
          <el-table-column label="排序" align="center" prop="sort" width="100" />
          <el-table-column label="导航类型" align="center" width="120">
            <template #default>首页导航</template>
          </el-table-column>
          <el-table-column label="操作" align="center" width="150">
            <template #default="scope">
              <span class="action-link danger" @click="handleDelete(scope.row)">删除</span>
              <span class="action-link primary" @click="handleEdit(scope.row)">编辑</span>
            </template>
          </el-table-column>
        </el-table>

        <pagination
          v-show="total > 0"
          v-model:page="queryParams.pageNum"
          v-model:limit="queryParams.pageSize"
          :total="total"
          @pagination="getList"
        />
      </div>
    </div>

    <!-- 添加/编辑对话框 -->
    <el-dialog v-model="dialog.visible" :title="dialog.title" width="500px" append-to-body>
      <el-form ref="formRef" :model="form" :rules="rules" label-width="100px">
        <el-form-item label="导航标题" prop="title">
          <el-input v-model="form.title" placeholder="请输入导航标题" />
        </el-form-item>
        <el-form-item label="链接地址" prop="link">
          <el-input v-model="form.link" placeholder="请输入链接地址" />
        </el-form-item>
        <el-form-item label="排序" prop="sort">
          <el-input-number v-model="form.sort" :min="0" :max="999" controls-position="right" />
        </el-form-item>
      </el-form>
      <template #footer>
        <el-button @click="dialog.visible = false">取 消</el-button>
        <el-button type="primary" @click="submitForm">确 定</el-button>
      </template>
    </el-dialog>
  </div>
</template>

<script setup name="IndustrialNavigation" lang="ts">
import { ref, reactive, onMounted } from 'vue';
import { ElMessage, ElMessageBox } from 'element-plus';
import { listIndustrialHomeTitle, addIndustrialHomeTitle, updateIndustrialHomeTitle, delIndustrialHomeTitle } from '@/api/system/industrialHomeTitle';

// 固定的导航类型：1=首页导航
const NAV_TYPE = 1;

// 查询参数
const queryParams = reactive({
  pageNum: 1,
  pageSize: 10
});

// 列表数据
const navList = ref<any[]>([]);
const loading = ref(false);
const total = ref(0);

// 对话框
const dialog = reactive({
  visible: false,
  title: ''
});

// 表单
const formRef = ref();
const initForm = {
  id: undefined as number | undefined,
  title: '',
  link: '',
  type: NAV_TYPE,
  sort: 0
};
const form = ref({ ...initForm });

const rules = {
  title: [{ required: true, message: '请输入导航标题', trigger: 'blur' }],
  link: [{ required: true, message: '请输入链接地址', trigger: 'blur' }]
};

// 查询列表
const getList = async () => {
  loading.value = true;
  try {
    const res: any = await listIndustrialHomeTitle({
      type: NAV_TYPE,
      pageNum: queryParams.pageNum,
      pageSize: queryParams.pageSize
    });
    navList.value = res.rows || [];
    total.value = res.total || 0;
  } catch (error) {
    console.error('加载列表失败', error);
    navList.value = [];
    total.value = 0;
  } finally {
    loading.value = false;
  }
};

// 添加
const handleAdd = () => {
  form.value = { ...initForm };
  dialog.title = '新增导航';
  dialog.visible = true;
};

// 编辑
const handleEdit = (row: any) => {
  form.value = {
    id: row.id,
    title: row.title || '',
    link: row.link || '',
    type: NAV_TYPE,
    sort: row.sort || 0
  };
  dialog.title = '编辑导航';
  dialog.visible = true;
};

// 删除
const handleDelete = (row: any) => {
  ElMessageBox.confirm(`是否确认删除导航"${row.title}"？`, '提示', {
    confirmButtonText: '确定',
    cancelButtonText: '取消',
    type: 'warning'
  }).then(async () => {
    await delIndustrialHomeTitle(row.id);
    ElMessage.success('删除成功');
    getList();
  }).catch(() => {});
};

// 提交表单
const submitForm = () => {
  formRef.value?.validate(async (valid: boolean) => {
    if (valid) {
      try {
        if (form.value.id) {
          await updateIndustrialHomeTitle(form.value);
          ElMessage.success('修改成功');
        } else {
          await addIndustrialHomeTitle(form.value);
          ElMessage.success('添加成功');
        }
        dialog.visible = false;
        getList();
      } catch (error) {
        ElMessage.error('操作失败');
      }
    }
  });
};

onMounted(() => {
  getList();
});
</script>

<style scoped lang="scss">
.navigation-page {
  min-height: 100vh;
  background: #f5f5f5;
  padding: 20px;
}

.navigation-container {
  max-width: 1200px;
  margin: 0 auto;
}

.table-card {
  background: #fff;
  border-radius: 4px;
  padding: 20px;
}

.table-header {
  display: flex;
  justify-content: space-between;
  align-items: center;
  margin-bottom: 15px;
}

.table-header-right {
  display: flex;
  align-items: center;
  gap: 10px;
}

.table-title {
  font-size: 16px;
  font-weight: 600;
  color: #303133;
}

.action-link {
  cursor: pointer;
  margin: 0 6px;
  
  &.primary {
    color: #409eff;
    &:hover { color: #66b1ff; }
  }
  
  &.danger {
    color: #f56c6c;
    &:hover { color: #f78989; }
  }
}
</style>
