package com.qxgmat.service.inline;

import com.github.pagehelper.Page;
import com.nuliji.tools.AbstractService;
import com.nuliji.tools.Tools;
import com.nuliji.tools.Transform;
import com.nuliji.tools.exception.ParameterException;
import com.nuliji.tools.exception.SystemException;
import com.nuliji.tools.mybatis.Example;
import com.qxgmat.data.constants.enums.module.InsideModule;
import com.qxgmat.data.constants.enums.status.DirectionStatus;
import com.qxgmat.data.constants.enums.user.MoneyRange;
import com.qxgmat.data.dao.FaqMapper;
import com.qxgmat.data.dao.entity.Faq;
import com.qxgmat.data.relation.FaqRelationMapper;
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.*;

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

    @Resource
    private FaqMapper faqMapper;

    @Resource
    private FaqRelationMapper faqRelationMapper;

    private Map<String, String> adminMap = new HashMap<String, String>(){{
        put("", "f");
    }};

    public Page<Faq> listAdmin(int page, int size, Boolean user, String channel, String position, Integer userId, Integer answerStatus, Boolean isSpecial, Boolean isShow, MoneyRange moneyRange, String order, DirectionStatus direction){
        Integer max = moneyRange != null ? moneyRange.max == Integer.MAX_VALUE ? null : moneyRange.max : null;
        Integer min = moneyRange != null ? moneyRange.min : null;
        if(order == null || order.isEmpty()){
            order = "id";
        }
        if(adminMap.containsKey(order)){
            order = adminMap.get(order)+".`"+Tools.underscoreName(order)+"`";
        }else{
            order = adminMap.get("")+".`"+Tools.underscoreName(order)+"`";
        }
        if (direction == null){
            direction = DirectionStatus.DESC;
        }
        String finalOrder = order;
        DirectionStatus finalDirection = direction;
        Page<Faq> p = page(
                ()-> faqRelationMapper.listWithUser(user, channel, position, userId, answerStatus, isSpecial != null ? (isSpecial ? 1 :0) :null,isShow != null ? (isShow ? 1 :0) :null, min, max, finalOrder, finalDirection.key)
                , page, size);

        Collection ids = Transform.getIds(p, Faq.class, "id");
        Transform.replace(p, select(ids), Faq.class, "id");
        return p;
    }

    public Page<Faq> list(int page, int size, String channel, String position){
        Example example = new Example(Faq.class);

        if (channel != null){
            example.and(
                    example.createCriteria().andEqualTo("channel", channel)
            );
            if (position != null){
                example.and(
                        example.createCriteria().andEqualTo("position", position)
                );
            }
        }
        example.and(
                example.createCriteria()
                        .orEqualTo("isShow", 1)
        );
        example.orderBy("order").desc();
        return select(faqMapper, example, page, size);
    }

    public Map<Object, Collection<Faq>> groupByPosition(String channel, Collection positions, Integer top){
        Map<Object, Collection<Faq>> result = new HashMap<>();
        if (positions == null || positions.size() == 0) return result;
        List<Faq> faqList = faqRelationMapper.groupByPosition(channel, positions, top);
        Collection<Faq> tmp;
        for(Faq faq : faqList){
            if (!result.containsKey(faq.getPosition())){
                tmp = new ArrayList<>();
                result.put(faq.getPosition(), tmp);
            }else{
                tmp = result.get(faq.getPosition());
            }
            tmp.add(faq);
        }
        return result;
    }

    /**
     * 根据列表顺序全部更新排序：从大到小
     * @param ids
     */
    @Transactional
    public void updateOrder(Integer[] ids){
        int order = ids.length;
        List<Faq> faqList = select(faqMapper, ids);
        Map faqMap = Transform.getMap(faqList, Faq.class, "id");
        for (Integer id : ids){
            order -= 1;
            Faq faq = (Faq)faqMap.get(id);
            if (faq == null) continue;
            if (faq.getOrder() == order) continue;
            update(faqMapper, Faq.builder()
                    .id(id)
                    .order(order)
                    .build()
            );
        }
    }

    public Faq add(Faq faq){
        int result = insert(faqMapper, faq);
        faq = one(faqMapper, faq.getId());
        if(faq == null){
            throw new SystemException("faq添加失败");
        }
        return faq;
    }

    public Faq edit(Faq faq){
        Faq in = one(faqMapper, faq.getId());
        if(in == null){
            throw new ParameterException("faq不存在");
        }
        int result = update(faqMapper, faq);
        return faq;
    }

    public boolean delete(Number id){
        Faq in = one(faqMapper, id);
        if(in == null){
            throw new ParameterException("faq不存在");
        }
        int result = delete(faqMapper, id);
        return result > 0;
    }

    public Faq get(Number id){
        Faq in = one(faqMapper, id);

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

    public Page<Faq> select(int page, int pageSize){
        return select(faqMapper, page, pageSize);
    }

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

    public List<Faq> select(Collection ids){
        return select(faqMapper, ids);
    }

}