<template>
  <BasicDrawer
    v-bind="$attrs"
    @register="registerDrawer"
    showFooter
    :title="getTitle"
    width="500px"
    @ok="handleSubmit"
  >
    <BasicForm @register="registerForm">
      <template #menu>
        <BasicTree
          checkable
          toolbar
          defaultExpandAll
          v-if="treeData.length"
          ref="treeRef"
          :treeData="treeData"
          :replaceFields="{ title: 'menuName' }"
          :checkedKeys="roleMenus"
          @check="handleCheckClick"
          title="菜单分配"
        />
      </template>
    </BasicForm>
  </BasicDrawer>
</template>
<script lang="ts">
  import { defineComponent, ref, computed, unref } from 'vue';
  import { BasicForm, useForm } from '/@/components/Form/index';
  import { formSchema } from './role.data';
  import { BasicDrawer, useDrawerInner } from '/@/components/Drawer';
  import { BasicTree, TreeItem } from '/@/components/Tree';

  const { t } = useI18n(); //加载国际化
  // 加载菜单数据
  import { getMenuList, getMenusIdsByRoleId } from '/@/api/sys/menu';
  import { useI18n } from '/@/hooks/web/useI18n';
  import { RouteItem } from '/@/api/sys/model/menuModel';
  import { saveOrUpdateRoleInfoWithMenu } from '/@/api/system/system';
  export default defineComponent({
    name: 'RoleDrawer',
    components: { BasicDrawer, BasicForm, BasicTree },
    emits: ['success', 'register'],
    setup(_, { emit }) {
      const isUpdate = ref<boolean>(true);
      const treeData = ref<TreeItem[]>([]);
      const roleMenus = ref<string[]>([]);
      const allCheckedKeys = ref<string[]>([]);
      const roleId = ref<string>('');
      const treeRef = ref();
      const [registerForm, { resetFields, setFieldsValue, validate }] = useForm({
        labelWidth: 100,
        schemas: formSchema,
        showActionButtonGroup: false,
      });

      // 递归函数，将RouteItem里面的字段换名称
      function processChildren(items: RouteItem[]) {
        items.forEach((item) => {
          item.menuName = t(item.meta.title);
          item.icon = item.meta.icon;
          item.key = item.id;
          if (item.children) {
            processChildren(item.children);
          }
        });
      }

      /**
       * 根据角色id获取所有的菜单ids----里面包含父级id---会造成回显数据时
       * 存在父级id则默认勾选所有子级id
       */
      function useChildrenIdsRemoveParentId(str, arr) {
        let index = arr.indexOf(str);
        arr.splice(index, 1);
        return arr;
      }
      const originMenus = ref();
      const [registerDrawer, { setDrawerProps, closeDrawer }] = useDrawerInner(async (data) => {
        resetFields();
        roleId.value = '';
        // 在打开弹窗时清除所有选择的菜单
        treeRef.value && treeRef.value.checkAll(false);
        isUpdate.value = data.isUpdate;
        // 需要在setFieldsValue之前先填充treeData，否则Tree组件可能会报key not exist警告
        if (!unref(treeData).length) {
          // 获取全部的菜单
          const menuListModel = await getMenuList();
          processChildren(menuListModel);
          treeData.value = menuListModel;
        }
        // 更新
        if (unref(isUpdate)) {
          //通过角色id去获取角色对应的菜单的ids
          roleMenus.value = await getMenusIdsByRoleId(data.record.id);
          originMenus.value = [...roleMenus.value];
          for (let m of treeData.value) {
            for (let m1 of roleMenus.value) {
              // 利用continue特性优化一下性能
              if (!(m.key === m1 && m.children.length)) continue;
              useChildrenIdsRemoveParentId(m1, roleMenus.value);
            }
          }
          treeRef.value.setCheckedKeys(roleMenus.value);
          roleId.value = data.record.id;
          setFieldsValue(data.record);
        }
      });

      const getTitle = computed(() => (!unref(isUpdate) ? '新增角色' : '编辑角色'));

      async function handleSubmit() {
        try {
          const values = await validate();
          setDrawerProps({ confirmLoading: true });
          const req = {
            id: roleId.value,
            name: values.name,
            remark: values.remark,
            status: values.status,
            menu: allCheckedKeys.value.length ? allCheckedKeys.value : originMenus.value,
          };
          saveOrUpdateRoleInfoWithMenu(req).then(() => {
            closeDrawer();
            emit('success');
          });
        } finally {
          setDrawerProps({ confirmLoading: false });
        }
      }
      // Tree check事件
      const handleCheckClick = (checkedNodes, { halfCheckedKeys }) => {
        allCheckedKeys.value = [...checkedNodes, ...halfCheckedKeys];
      };

      return {
        registerDrawer,
        registerForm,
        getTitle,
        handleSubmit,
        treeData,
        roleMenus,
        treeRef,
        handleCheckClick,
        allCheckedKeys,
      };
    },
  });
</script>