/**
 * Copyright (c) 2018-2099, Chill Zhuang 庄骞 (bladejava@qq.com).
 * <p>
 * Licensed under the GNU LESSER GENERAL PUBLIC LICENSE 3.0;
 * you may not use this file except in compliance with the License.
 * You may obtain a copy of the License at
 * <p>
 * http://www.gnu.org/licenses/lgpl.html
 * <p>
 * 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 org.springblade.core.datascope.handler;

import lombok.RequiredArgsConstructor;
import org.springblade.core.datascope.constant.DataScopeConstant;
import org.springblade.core.datascope.model.DataScopeModel;
import org.springblade.core.tool.utils.*;
import org.springframework.jdbc.core.BeanPropertyRowMapper;
import org.springframework.jdbc.core.JdbcTemplate;

import java.util.ArrayList;
import java.util.Collections;
import java.util.List;

import static org.springblade.core.tool.utils.CacheUtil.SYS_CACHE;


/**
 * BladeScopeModelHandler
 *
 * @author Chill
 */
@RequiredArgsConstructor
public class BladeScopeModelHandler implements ScopeModelHandler {

	private static final String SCOPE_CACHE_CODE = "dataScope:code:";
	private static final String SCOPE_CACHE_CLASS = "dataScope:class:";
	private static final String DEPT_CACHE_ANCESTORS = "dept:ancestors:";
	private static final DataScopeModel SEARCHED_DATA_SCOPE_MODEL = new DataScopeModel(Boolean.TRUE);

	private final JdbcTemplate jdbcTemplate;

	/**
	 * 获取数据权限
	 *
	 * @param mapperId 数据权限mapperId
	 * @param roleId   用户角色集合
	 * @return DataScopeModel
	 */
	@Override
	public DataScopeModel getDataScopeByMapper(String mapperId, String roleId) {
		List<Object> args = new ArrayList<>(Collections.singletonList(mapperId));
		List<Long> roleIds = Func.toLongList(roleId);
		args.addAll(roleIds);
		// 增加searched字段防止未配置的参数重复读库导致缓存击穿
		// 后续若有新增配置则会清空缓存重新加载
		DataScopeModel dataScope = CacheUtil.get(SYS_CACHE, SCOPE_CACHE_CLASS, mapperId + StringPool.COLON + roleId, DataScopeModel.class);
		if (dataScope == null || !dataScope.getSearched()) {
			List<DataScopeModel> list = jdbcTemplate.query(DataScopeConstant.dataByMapper(roleIds.size()), new BeanPropertyRowMapper<>(DataScopeModel.class), args.toArray());
			if (CollectionUtil.isNotEmpty(list)) {
				dataScope = list.iterator().next();
				dataScope.setSearched(Boolean.TRUE);
			} else {
				dataScope = SEARCHED_DATA_SCOPE_MODEL;
			}
			CacheUtil.put(SYS_CACHE, SCOPE_CACHE_CLASS, mapperId + StringPool.COLON + roleId, dataScope);
		}
		return StringUtil.isNotBlank(dataScope.getResourceCode()) ? dataScope : null;
	}

	/**
	 * 获取数据权限
	 *
	 * @param code 数据权限资源编号
	 * @return DataScopeModel
	 */
	@Override
	public DataScopeModel getDataScopeByCode(String code) {
		DataScopeModel dataScope = CacheUtil.get(SYS_CACHE, SCOPE_CACHE_CODE, code, DataScopeModel.class);
		// 增加searched字段防止未配置的参数重复读库导致缓存击穿
		// 后续若有新增配置则会清空缓存重新加载
		if (dataScope == null || !dataScope.getSearched()) {
			List<DataScopeModel> list = jdbcTemplate.query(DataScopeConstant.DATA_BY_CODE, new BeanPropertyRowMapper<>(DataScopeModel.class), code);
			if (CollectionUtil.isNotEmpty(list)) {
				dataScope = list.iterator().next();
				dataScope.setSearched(Boolean.TRUE);
			} else {
				dataScope = SEARCHED_DATA_SCOPE_MODEL;
			}
			CacheUtil.put(SYS_CACHE, SCOPE_CACHE_CODE, code, dataScope);
		}
		return StringUtil.isNotBlank(dataScope.getResourceCode()) ? dataScope : null;
	}

	/**
	 * 获取部门子级
	 *
	 * @param deptId 部门id
	 * @return deptIds
	 */
	@Override
	public List<Long> getDeptAncestors(Long deptId) {
		return CacheUtil.get(SYS_CACHE, DEPT_CACHE_ANCESTORS, deptId, () ->
			jdbcTemplate.queryForList(DataScopeConstant.DATA_BY_DEPT, Long.class, deptId)
		);
	}
}
