package com.qxgmat.service.inline;

import com.github.pagehelper.Page;
import com.nuliji.tools.AbstractService;
import com.nuliji.tools.exception.ParameterException;
import com.nuliji.tools.exception.SystemException;
import com.nuliji.tools.mybatis.Example;
import com.qxgmat.data.constants.enums.status.DirectionStatus;
import com.qxgmat.data.dao.AdMapper;
import com.qxgmat.data.dao.entity.Ad;
import org.slf4j.Logger;
import org.slf4j.LoggerFactory;
import org.springframework.stereotype.Service;
import org.springframework.transaction.annotation.Transactional;

import javax.annotation.Resource;
import java.util.Collection;
import java.util.Date;
import java.util.List;

@Service
public class AdService extends AbstractService {
    private static final Logger logger = LoggerFactory.getLogger(AdService.class);

    @Resource
    private AdMapper adMapper;

    public Page<Ad> listAdmin(int page, int size, String channel, String position, String order, DirectionStatus direction){
        Example example = new Example(Ad.class);
        if (channel != null)
            example.and(
                    example.createCriteria()
                            .andEqualTo("channel", channel)
            );
        if (position != null)
            example.and(
                    example.createCriteria()
                            .andEqualTo("position", position)
            );

        if(order == null || order.isEmpty()) order = "id";
        switch(direction){
            case ASC:
                example.orderBy(order).asc();
                break;
            case DESC:
            default:
                example.orderBy(order).desc();
        }
        return select(adMapper, example, page, size);
    }

    public List<Ad> all(String channel){
        Example example = new Example(Ad.class);
        Date day = new Date();
        example.and(
                example.createCriteria()
                        .orGreaterThanOrEqualTo("startTime", day)
                        .orIsNull("startTime")
        );
        example.and(
                example.createCriteria()
                        .orLessThan("endTime", day)
                        .orIsNull("endTime")
        );
        example.and(
                example.createCriteria()
                        .andEqualTo("channel", channel)
        );
        example.orderBy("position").asc();
        return select(adMapper, example);
    }

    public Ad getAd(String channel, String place){
        Example example = new Example(Ad.class);
        Date day = new Date();
        example.and(
                example.createCriteria()
                        .andEqualTo("channel", channel)
                        .andEqualTo("place", place)
        );
        return one(adMapper, example);
    }

    @Transactional
    public Ad addAd(Ad entity){
        Ad in = getAd(entity.getChannel(), entity.getPlace());
        if (in != null){
            throw new ParameterException("广告位已设置");
        }
        return add(entity);
    }

    @Transactional
    public Ad editAd(Ad entity){
        Ad in = getAd(entity.getChannel(), entity.getPlace());
        if (in != null && !in.getId().equals(entity.getId())){
            throw new ParameterException("广告位已设置");
        }
        return edit(entity);
    }

    public Ad add(Ad ad){
        int result = insert(adMapper, ad);
        ad = one(adMapper, ad.getId());
        if(ad == null){
            throw new SystemException("广告添加失败");
        }
        return ad;
    }

    public Ad edit(Ad ad){
        Ad in = one(adMapper, ad.getId());
        if(in == null){
            throw new ParameterException("广告不存在");
        }
        int result = update(adMapper, ad);
        return ad;
    }

    public boolean delete(Number id){
        Ad in = one(adMapper, id);
        if(in == null){
            throw new ParameterException("广告不存在");
        }
        int result = delete(adMapper, id);
        return result > 0;
    }

    public Ad get(Number id){
        Ad in = one(adMapper, id);

        if(in == null){
            throw new ParameterException("广告不存在");
        }
        return in;
    }

    public Page<Ad> select(int page, int pageSize){
        return select(adMapper, page, pageSize);
    }

    public Page<Ad> select(Integer[] ids){
        return page(()->select(adMapper, ids), 1, ids.length);
    }

    public List<Ad> select(Collection ids){
        return select(adMapper, ids);
    }

}