package com.zy.asrs.wcs.common.config;

import com.baomidou.mybatisplus.autoconfigure.ConfigurationCustomizer;
import com.baomidou.mybatisplus.extension.plugins.MybatisPlusInterceptor;
import com.baomidou.mybatisplus.extension.plugins.handler.TenantLineHandler;
import com.baomidou.mybatisplus.extension.plugins.inner.PaginationInnerInterceptor;
import com.baomidou.mybatisplus.extension.plugins.inner.TenantLineInnerInterceptor;
import com.zy.asrs.wcs.system.entity.User;
import net.sf.jsqlparser.expression.Expression;
import net.sf.jsqlparser.expression.LongValue;
import net.sf.jsqlparser.expression.NullValue;
import org.springframework.context.annotation.Bean;
import org.springframework.context.annotation.Configuration;
import org.springframework.security.core.Authentication;
import org.springframework.security.core.context.SecurityContextHolder;

import java.util.Arrays;

/**
 * MybatisPlus配置
 *
 * @author vincent
 * @since 2018-02-22 11:29:28
 */
@Configuration
public class MybatisPlusConfig {

    @Bean
    public MybatisPlusInterceptor mybatisPlusInterceptor() {
        MybatisPlusInterceptor interceptor = new MybatisPlusInterceptor();
        interceptor.addInnerInterceptor(new TenantLineInnerInterceptor(new TenantLineHandler() {
            @Override
            public Expression getTenantId() {
                return getLoginUserTenantId();
            }

            @Override
            public String getTenantIdColumn() {
                return "host_id";
            }

            // 这是 default 方法,默认返回 false 表示所有表都需要拼多租户条件
            @Override
            public boolean ignoreTable(String tableName) {
                if (getTenantId() == null) {
                    return true;
                }else {
                    return Arrays.asList(
                            "sys_host",
                            "sys_user_role",
                            "sys_role_menu",
                            "wcs_bas_shuttle_err",
                            "wcs_bas_lift_err"
                    ).contains(tableName);
                }
            }
        }));
        // 如果用了分页插件注意先 add TenantLineInnerInterceptor 再 add PaginationInnerInterceptor
        // 用了分页插件必须设置 MybatisConfiguration#useDeprecatedExecutor = false
        interceptor.addInnerInterceptor(new PaginationInnerInterceptor());
        return interceptor;
    }

    @Bean
    public ConfigurationCustomizer configurationCustomizer() {
        return configuration -> configuration.setUseDeprecatedExecutor(false);
    }

//    @Bean
//    public MybatisPlusInterceptor mybatisPlusInterceptor() {
//        MybatisPlusInterceptor interceptor = new MybatisPlusInterceptor();
//
//        TenantLineHandler tenantLineHandler = new TenantLineHandler() {
//
//            @Override
//            public Expression getTenantId() {
//                return getLoginUserTenantId();
//            }
//
//            @Override
//            public String getTenantIdColumn() {
//                return "host_id";
//            }
//
//            @Override
//            public boolean ignoreTable(String tableName) {
//                if (getTenantId() == null) {
//                    return true;
//                }else {
//                    return Arrays.asList(
//                            "sys_host",
//                            "sys_user_role",
//                            "sys_role_menu",
//                            "wcs_bas_shuttle_err",
//                            "wcs_bas_lift_err"
//                    ).contains(tableName);
//                }
//            }
//
//        };
//        TenantLineInnerInterceptor tenantLineInnerInterceptor = new TenantLineInnerInterceptor(tenantLineHandler);
//        interceptor.addInnerInterceptor(tenantLineInnerInterceptor);
//
//        PaginationInnerInterceptor paginationInnerInterceptor = new PaginationInnerInterceptor();
//        interceptor.addInnerInterceptor(paginationInnerInterceptor);
//
//        return interceptor;
//    }

    /**
     * 获取当前登录用户的租户id
     *
     * @return Integer
     */
    public Expression getLoginUserTenantId() {
        try {
            Authentication authentication = SecurityContextHolder.getContext().getAuthentication();
            if (authentication != null) {
                Object object = authentication.getPrincipal();
                if (object instanceof User) {
                    return new LongValue(((User) object).getHostId());
                }
            }
        } catch (Exception e) {
            System.out.println(e.getMessage());
        }
        return null;
    }

}