<template>
  <div class="page-container">
    <el-card shadow="never" class="table-card">
      <template #header>
        <div class="card-header">
          <div class="header-left">
            <span class="title">角色与权限管理</span>
          </div>
          <div class="header-right">
            <el-button type="primary" icon="Plus" @click="handleAdd()" v-hasPermi="['system:role:add']">新增角色</el-button>
          </div>
        </div>
      </template>

      <el-table ref="roleTableRef" v-loading="loading" :data="roleList" style="width: 100%" :header-cell-style="{ background: '#f8f9fb', color: '#606266' }">
        <el-table-column label="角色名称" prop="roleName" min-width="150" />
        <el-table-column label="描述" prop="remark" min-width="300" :show-overflow-tooltip="true" />
        <el-table-column label="状态" width="100" align="center">
          <template #default="scope">
            <el-switch v-model="scope.row.status" active-value="0" inactive-value="1" @change="handleStatusChange(scope.row)" v-hasPermi="['system:role:changeStatus']"></el-switch>
          </template>
        </el-table-column>
        <el-table-column label="操作" width="160" align="right" fixed="right">
          <template #default="scope">
            <div class="op-btns" v-if="scope.row.roleId !== 1">
              <el-button link type="primary" @click="handleUpdate(scope.row)" v-hasPermi="['system:role:edit']">编辑</el-button>
              <el-button link type="danger" @click="handleDelete(scope.row)" v-hasPermi="['system:role:remove']">删除</el-button>
            </div>
          </template>
        </el-table-column>
      </el-table>

      <div class="pagination-container">
        <pagination
          v-if="total > 0"
          v-model:total="total"
          v-model:page="queryParams.pageNum"
          v-model:limit="queryParams.pageSize"
          @pagination="getList"
        />
      </div>
    </el-card>

    <el-dialog v-model="dialog.visible" :title="dialog.title" width="500px" append-to-body>
      <el-form ref="roleFormRef" :model="form" :rules="rules" label-width="100px">
        <el-form-item label="角色名称" prop="roleName">
          <el-input v-model="form.roleName" placeholder="请输入角色名称" />
        </el-form-item>
        <el-form-item label="角色顺序" prop="roleSort">
          <el-input-number v-model="form.roleSort" controls-position="right" :min="0" />
        </el-form-item>
        <el-form-item label="状态">
          <el-radio-group v-model="form.status">
            <el-radio v-for="dict in sys_normal_disable" :key="dict.value" :value="dict.value">{{ dict.label }}</el-radio>
          </el-radio-group>
        </el-form-item>
        <el-form-item label="菜单权限">
          <el-checkbox v-model="menuExpand" @change="handleCheckedTreeExpand($event, 'menu')">展开/折叠</el-checkbox>
          <el-checkbox v-model="menuNodeAll" @change="handleCheckedTreeNodeAll($event, 'menu')">全选/全不选</el-checkbox>
          <el-checkbox v-model="form.menuCheckStrictly" @change="handleCheckedTreeConnect($event, 'menu')">父子联动</el-checkbox>
          <el-tree
            ref="menuRef"
            class="tree-border"
            :data="menuOptions"
            show-checkbox
            node-key="id"
            :check-strictly="!form.menuCheckStrictly"
            empty-text="加载中，请稍候"
            :props="{ label: 'label', children: 'children' } as any"
          ></el-tree>
        </el-form-item>
        <el-form-item label="备注">
          <el-input v-model="form.remark" type="textarea" placeholder="请输入内容"></el-input>
        </el-form-item>
      </el-form>
      <template #footer>
        <div class="dialog-footer">
          <el-button type="primary" @click="submitForm">确 定</el-button>
          <el-button @click="cancel">取 消</el-button>
        </div>
      </template>
    </el-dialog>

    <!-- 分配角色数据权限对话框 -->
    <el-dialog v-model="openDataScope" :title="dialog.title" width="500px" append-to-body>
      <el-form ref="dataScopeRef" :model="form" label-width="80px">
        <el-form-item label="角色名称">
          <el-input v-model="form.roleName" :disabled="true" />
        </el-form-item>
        <el-form-item label="权限范围">
          <el-select v-model="form.dataScope" @change="dataScopeSelectChange">
            <el-option v-for="item in dataScopeOptions" :key="item.value" :label="item.label" :value="item.value"></el-option>
          </el-select>
        </el-form-item>
        <el-form-item v-show="form.dataScope === '2'" label="数据权限">
          <el-checkbox v-model="deptExpand" @change="handleCheckedTreeExpand($event, 'dept')">展开/折叠</el-checkbox>
          <el-checkbox v-model="deptNodeAll" @change="handleCheckedTreeNodeAll($event, 'dept')">全选/全不选</el-checkbox>
          <el-checkbox v-model="form.deptCheckStrictly" @change="handleCheckedTreeConnect($event, 'dept')">父子联动</el-checkbox>
          <el-tree
            ref="deptRef"
            class="tree-border"
            :data="deptOptions"
            show-checkbox
            default-expand-all
            node-key="id"
            :check-strictly="!form.deptCheckStrictly"
            empty-text="加载中，请稍候"
            :props="{ label: 'label', children: 'children' } as any"
          ></el-tree>
        </el-form-item>
      </el-form>
      <template #footer>
        <div class="dialog-footer">
          <el-button type="primary" @click="submitDataScope">确 定</el-button>
          <el-button @click="cancelDataScope">取 消</el-button>
        </div>
      </template>
    </el-dialog>
  </div>
</template>

<script setup name="Role" lang="ts">
import { addRole, changeRoleStatus, dataScope, delRole, getRole, listRole, updateRole, deptTreeSelect } from '@/api/system/role';
import { roleMenuTreeselect, treeselect as menuTreeselect } from '@/api/system/menu/index';
import { RoleVO, RoleForm, RoleQuery, DeptTreeOption } from '@/api/system/role/types';
import { MenuTreeOption, RoleMenuTree } from '@/api/system/menu/types';

const router = useRouter();
const { proxy } = getCurrentInstance() as ComponentInternalInstance;
const { sys_normal_disable } = toRefs<any>(proxy?.useDict('sys_normal_disable'));

const roleList = ref<RoleVO[]>();
const loading = ref(true);
const total = ref(0);
const menuOptions = ref<MenuTreeOption[]>([]);
const menuExpand = ref(false);
const menuNodeAll = ref(false);
const deptExpand = ref(true);
const deptNodeAll = ref(false);
const deptOptions = ref<DeptTreeOption[]>([]);
const openDataScope = ref(false);

/** 数据范围选项*/
const dataScopeOptions = ref([
  { value: '1', label: '全部数据权限' },
  { value: '2', label: '自定数据权限' },
  { value: '3', label: '本部门数据权限' },
  { value: '4', label: '本部门及以下数据权限' },
  { value: '5', label: '仅本人数据权限' },
  { value: '6', label: '部门及以下或本人数据权限' }
]);

const queryFormRef = ref<ElFormInstance>();
const roleFormRef = ref<ElFormInstance>();
const dataScopeRef = ref<ElFormInstance>();
const menuRef = ref<ElTreeInstance>();
const deptRef = ref<ElTreeInstance>();

const initForm: RoleForm = {
  roleId: undefined,
  roleSort: 1,
  status: '0',
  roleName: '',
  roleKey: '',
  menuCheckStrictly: true,
  deptCheckStrictly: true,
  remark: '',
  dataScope: '1',
  menuIds: [],
  deptIds: []
};

const data = reactive<PageData<RoleForm, RoleQuery>>({
  form: { ...initForm },
  queryParams: {
    pageNum: 1,
    pageSize: 10,
    roleName: '',
    roleKey: '',
    status: ''
  },
  rules: {
    roleName: [{ required: true, message: '角色名称不能为空', trigger: 'blur' }],
    roleSort: [{ required: true, message: '角色顺序不能为空', trigger: 'blur' }]
  }
});
const { form, queryParams, rules } = toRefs(data);

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

/**
 * 查询角色列表
 */
const getList = () => {
  loading.value = true;
  listRole(queryParams.value).then((res) => {
    roleList.value = res.rows;
    total.value = res.total;
    loading.value = false;
  });
};

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

/**删除按钮操作 */
const handleDelete = async (row: RoleVO) => {
  await proxy?.$modal.confirm('是否确认删除角色名称为"' + row.roleName + '"的数据项？');
  await delRole(row.roleId);
  getList();
  proxy?.$modal.msgSuccess('删除成功');
};


/** 角色状态修改 */
const handleStatusChange = async (row: RoleVO) => {
  const text = row.status === '0' ? '启用' : '停用';
  try {
    await proxy?.$modal.confirm('确认要"' + text + '""' + row.roleName + '"角色吗?');
    await changeRoleStatus(row.roleId, row.status);
    proxy?.$modal.msgSuccess(text + '成功');
  } catch {
    row.status = row.status === '0' ? '1' : '0';
  }
};

/** 分配用户 */
const handleAuthUser = (row: RoleVO) => {
  router.push('/system/role-auth/user/' + row.roleId);
};

/** 过滤不可见菜单 */
const filterVisibleMenus = (menus: MenuTreeOption[]): MenuTreeOption[] => {
  return menus
    .filter((item) => item.visible !== '1')
    .map((item) => {
      if (item.children && item.children.length > 0) {
        return {
          ...item,
          children: filterVisibleMenus(item.children)
        };
      }
      return item;
    });
};

/** 查询菜单树结构 */
const getMenuTreeselect = async () => {
  const res = await menuTreeselect();
  menuOptions.value = filterVisibleMenus(res.data);
};
/** 所有部门节点数据 */
const getDeptAllCheckedKeys = (): any => {
  // 目前被选中的部门节点
  const checkedKeys = deptRef.value?.getCheckedKeys();
  // 半选中的部门节点
  const halfCheckedKeys = deptRef.value?.getHalfCheckedKeys();
  if (halfCheckedKeys) {
    checkedKeys?.unshift(...halfCheckedKeys);
  }
  return checkedKeys;
};
/** 重置新增的表单以及其他数据  */
const reset = () => {
  menuRef.value?.setCheckedKeys([]);
  menuExpand.value = false;
  menuNodeAll.value = false;
  deptExpand.value = true;
  deptNodeAll.value = false;
  form.value = { ...initForm };
  roleFormRef.value?.resetFields();
};

/** 添加角色 */
const handleAdd = () => {
  reset();
  getMenuTreeselect();
  dialog.visible = true;
  dialog.title = '添加角色';
};
const handleUpdate = async (row: RoleVO) => {
  reset();
  const roleId = row.roleId;
  const { data } = await getRole(roleId);
  Object.assign(form.value, data);
  form.value.roleSort = Number(form.value.roleSort);
  const res = await getRoleMenuTreeselect(roleId);
  dialog.title = '修改角色';
  dialog.visible = true;
  res.checkedKeys.forEach((v) => {
    nextTick(() => {
      menuRef.value?.setChecked(v, true, false);
    });
  });
};
/** 根据角色ID查询菜单树结构 */
const getRoleMenuTreeselect = (roleId: string | number) => {
  return roleMenuTreeselect(roleId).then((res): RoleMenuTree => {
    menuOptions.value = filterVisibleMenus(res.data.menus);
    return res.data;
  });
};
/** 根据角色ID查询部门树结构 */
const getRoleDeptTreeSelect = async (roleId: string | number) => {
  const res = await deptTreeSelect(roleId);
  deptOptions.value = res.data.depts;
  return res.data;
};
/** 树权限（展开/折叠）*/
const handleCheckedTreeExpand = (value: boolean, type: string) => {
  if (type == 'menu') {
    const treeList = menuOptions.value;
    for (let i = 0; i < treeList.length; i++) {
      if (menuRef.value) {
        menuRef.value.store.nodesMap[treeList[i].id].expanded = value;
      }
    }
  } else if (type == 'dept') {
    const treeList = deptOptions.value;
    for (let i = 0; i < treeList.length; i++) {
      if (deptRef.value) {
        deptRef.value.store.nodesMap[treeList[i].id].expanded = value;
      }
    }
  }
};
/** 树权限（全选/全不选） */
const handleCheckedTreeNodeAll = (value: any, type: string) => {
  if (type == 'menu') {
    menuRef.value?.setCheckedNodes(value ? (menuOptions.value as any) : []);
  } else if (type == 'dept') {
    deptRef.value?.setCheckedNodes(value ? (deptOptions.value as any) : []);
  }
};
/** 树权限（父子联动） */
const handleCheckedTreeConnect = (value: any, type: string) => {
  if (type == 'menu') {
    form.value.menuCheckStrictly = value;
  } else if (type == 'dept') {
    form.value.deptCheckStrictly = value;
  }
};
/** 所有菜单节点数据 */
const getMenuAllCheckedKeys = (): any => {
  // 目前被选中的菜单节点
  const checkedKeys = menuRef.value?.getCheckedKeys();
  // 半选中的菜单节点
  const halfCheckedKeys = menuRef.value?.getHalfCheckedKeys();
  if (halfCheckedKeys) {
    checkedKeys?.unshift(...halfCheckedKeys);
  }
  return checkedKeys;
};
/** 提交按钮 */
const submitForm = () => {
  roleFormRef.value?.validate(async (valid: boolean) => {
    if (valid) {
      form.value.menuIds = getMenuAllCheckedKeys();
      form.value.roleId ? await updateRole(form.value) : await addRole(form.value);
      proxy?.$modal.msgSuccess('操作成功');
      dialog.visible = false;
      getList();
    }
  });
};
/** 取消按钮 */
const cancel = () => {
  reset();
  dialog.visible = false;
};
/** 选择角色权限范围触发 */
const dataScopeSelectChange = (value: string) => {
  if (value !== '2') {
    deptRef.value?.setCheckedKeys([]);
  }
};
/** 分配数据权限操作 */
const handleDataScope = async (row: RoleVO) => {
  const response = await getRole(row.roleId);
  Object.assign(form.value, response.data);
  const res = await getRoleDeptTreeSelect(row.roleId);
  openDataScope.value = true;
  dialog.title = '分配数据权限';
  await nextTick(() => {
    deptRef.value?.setCheckedKeys(res.checkedKeys);
  });
};
/** 提交按钮（数据权限） */
const submitDataScope = async () => {
  if (form.value.roleId) {
    form.value.deptIds = getDeptAllCheckedKeys();
    await dataScope(form.value);
    proxy?.$modal.msgSuccess('修改成功');
    openDataScope.value = false;
    getList();
  }
};
/** 取消按钮（数据权限）*/
const cancelDataScope = () => {
  dataScopeRef.value?.resetFields();
  form.value = { ...initForm };
  openDataScope.value = false;
};

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

<style scoped lang="scss">
.page-container {
  padding: 20px;
  background-color: #f5f7f9;
  min-height: 100%;
}

.table-card {
  border: none;
  border-radius: 8px;
  
  :deep(.el-card__header) {
    padding: 20px 24px;
    border-bottom: 1px solid #f0f0f0;
  }
}

.card-header {
  display: flex;
  justify-content: space-between;
  align-items: center;
}

.header-left {
  .title {
    font-size: 16px;
    font-weight: 600;
    color: #333;
  }
}

.header-right {
  display: flex;
  gap: 12px;
}

.op-btns {
  display: flex;
  justify-content: flex-end;
  gap: 8px;
  
  .el-button {
    font-weight: 400;
    padding: 0;
    
    &.el-button--primary { color: #409eff; }
    &.el-button--danger { color: #f56c6c; }
  }
}

.pagination-container {
  margin-top: 24px;
  display: flex;
  justify-content: flex-end;
}

:deep(.el-table) {
  --el-table-border-color: #f0f0f0;
  
  th.el-table__cell {
    font-weight: 600;
  }
}
</style>
