package org.yeshi.utils.mongo;

import org.springframework.data.mongodb.core.MongoTemplate;
import org.springframework.data.mongodb.core.query.Criteria;
import org.springframework.data.mongodb.core.query.Query;
import org.springframework.data.mongodb.core.query.Update;

import javax.annotation.Resource;
import java.lang.reflect.ParameterizedType;
import java.util.List;

/**
 * @author Administrator
 * @title: MongodbBaseDao
 * @description: base dao
 * @date 2021/10/13 15:03
 */
public class MongodbBaseDao<T> {

    @Resource
    protected MongoTemplate mongoTemplate;

    /**
     * 插入数据
     *
     * @param bean
     * @return
     */
    public T save(T bean) {
        mongoTemplate.save(bean);
        return bean;
    }

    /**
     * 根据主键更新数据
     *
     * @param query
     * @param update
     */
    public void update(Query query, Update update) {
        mongoTemplate.upsert(query, update, this.getEntityClass());
    }

    /**
     * 查询一个数据
     *
     * @param query
     * @return
     */
    public T findOne(Query query) {
        return (T) mongoTemplate.findOne(query, this.getEntityClass());
    }

    /**
     * 查询多个数据
     *
     * @param query
     * @return
     */
    public List<T> findList(Query query) {
        return mongoTemplate.find(query, this.getEntityClass());
    }


    /**
     * 统计数量
     *
     * @param query
     * @return
     */
    public long count(Query query) {
        return mongoTemplate.count(query, this.getEntityClass());
    }

    /**
     * 主键查询
     *
     * @param id
     * @return
     */
    public T get(Object id) {
        return (T) mongoTemplate.findById(id, this.getEntityClass());
    }

    /**
     * 通过主键删除
     *
     * @param id
     */
    public void delete(Object id) {
        Query query = Query.query(Criteria.where("id").is(id));
        mongoTemplate.remove(query, getEntityClass());
    }

    public void delete(Query query) {
        mongoTemplate.remove(query, getEntityClass());
    }

    @SuppressWarnings("unchecked")
    protected Class<T> getEntityClass() {
        Class<T> tClass = (Class<T>) ((ParameterizedType) getClass().getGenericSuperclass())
                .getActualTypeArguments()[0];
        return tClass;
    }

}