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/*
 *    Copyright 2021 wwy
 *
 *    Licensed under the Apache License, Version 2.0 (the "License");
 *    you may not use this file except in compliance with the License.
 *    You may obtain a copy of the License at
 *
 *      http://www.apache.org/licenses/LICENSE-2.0
 *
 *    Unless required by applicable law or agreed to in writing, software
 *    distributed under the License is distributed on an "AS IS" BASIS,
 *    WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
 *    See the License for the specific language governing permissions and
 *    limitations under the License.
 */
package com.gitee.cn9750wang.webtools.utils;

import com.baomidou.mybatisplus.core.conditions.update.LambdaUpdateWrapper;
import com.baomidou.mybatisplus.core.conditions.update.UpdateWrapper;
import com.baomidou.mybatisplus.core.metadata.IPage;
import com.gitee.cn9750wang.webtools.entity.SoftDeleteEntity;
import com.gitee.cn9750wang.webtools.error.defines.ParamErr;
import com.gitee.cn9750wang.webtools.query.AbstractQuery;
import com.gitee.cn9750wang.webtools.query.LimitPage;
import com.gitee.cn9750wang.webtools.vo.page.MybatisPlusPage;
import com.gitee.cn9750wang.webtools.vo.page.Page;
import com.gitee.cn9750wang.webtools.vo.page.PageImpl;

import java.util.Set;

/**
 * MybatisPlus 相关工具类
 * @author wwy
 */
public class MybatisPlusUtils {

    private MybatisPlusUtils(){}

    /**
     * 转换为mybatis-plus分页插件的分页对象
     * @param limitPage 分页查询对象
     * @param  类型限制
     * @return mybatis-plus分页对象
     */
    public static  MybatisPlusPage convert(LimitPage limitPage){
        ParamErr.NOT_NULL.isNotNull(limitPage,"分页对象");
        return new MybatisPlusPage<>(limitPage.getPage(), limitPage.getSize());
    }

    /**
     * 转换为mybatis-plus分页插件的分页对象
     * @param query 条件查询对象
     * @param  类型限制
     * @return mybatis-plus分页对象
     */
    public static  MybatisPlusPage convert(AbstractQuery query){
        return convert(query,null);
    }

    /**
     * 转换为mybatis-plus分页插件的分页对象
     * @param query 条件查询对象
     * @param enableSortField 可以进行排序的字段
     * @param  类型限制
     * @return mybatis-plus分页对象
     */
    public static  MybatisPlusPage convert(AbstractQuery query, Set enableSortField){
        ParamErr.NOT_NULL.isNotNull(query,"查询条件");
        MybatisPlusPage page = convert(query.getPage());
        final var sort = query.getSort();
        if(sort != null) {
            // 检查是否可以排序
            ParamErr.UN_SORT.isTrue(sort.isSortable(enableSortField),sort.getField());
            page.setOrders(sort);
        }
        return page;
    }

    /**
     * 将mybatis-plus的分页对象转换为自己的分页对象
     * @param page mybatis-plus分页对象
     * @param  数据类型
     * @return 转换后分页对象
     */
    public static  Page page(IPage page){
        if(page == null){
            return Page.emptyPage();
        }
        var p = new PageImpl();
        p.setItems(page.getRecords());
        p.setTotal(page.getTotal());
        p.setPage(page.getCurrent());
        return p;
    }

    /**
     * 获取UpdateWrapper,预设条件:仅修改未被软删除的数据
     * @param  范型限制
     * @return UpdateWrapper
     */
    public static  UpdateWrapper getNotSoftDeleteUpdateWrapper(){
        return new UpdateWrapper().isNull("deleteTime");
    }

    /**
     * 获取LambdaUpdateWrapper,预设条件:仅修改未被软删除的数据
     * @param  范型限制
     * @return LambdaUpdateWrapper
     */
    public static  LambdaUpdateWrapper getNotSoftDeleteLambdaUpdateWrapper(){
        return new LambdaUpdateWrapper().isNull(SoftDeleteEntity::getDeleteTime);
    }

}