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.ChannelModule;
import com.qxgmat.data.constants.enums.status.DirectionStatus;
import com.qxgmat.data.constants.enums.user.MoneyRange;
import com.qxgmat.data.dao.CommentMapper;
import com.qxgmat.data.dao.entity.Comment;
import com.qxgmat.data.dao.entity.User;
import com.qxgmat.data.relation.CommentRelationMapper;
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 CommentService extends AbstractService {
    private static final Logger logger = LoggerFactory.getLogger(CommentService.class);

    @Resource
    private CommentMapper commentMapper;

    @Resource
    private CommentRelationMapper commentRelationMapper;

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

    public Page<Comment> listAdmin(int page, int size, Boolean user, String channel, String position, Integer userId, 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<Comment> p = page(
                ()-> commentRelationMapper.listWithUser(user, channel, position, userId, isSpecial != null ? (isSpecial ? 1 :0) :null,isShow != null ? (isShow ? 1 :0) :null, min, max, finalOrder, finalDirection.key)
                , page, size);

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

    public Page<Comment> list(int page, int size, String channel, String position){
        Example example = new Example(Comment.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("sort").desc();
        return select(commentMapper, example, page, size);
    }

    /**
     * 替换comment的用户信息为真实用户信息
     * @param comments
     * @param users
     */
    public void replaceUser(List<Comment> comments, List<User> users){
        Map userMap = Transform.getMap(users, User.class, "id");
        for(Comment comment : comments){
            if (comment.getUserId() == 0) {
                continue;
            }
            User user = (User)userMap.get(comment.getUserId());
            if (user == null){
                continue;
            }
            comment.setAvatar(user.getAvatar());
            comment.setNickname(user.getNickname());
        }
    }

    public Map<Object, Collection<Comment>> groupByPosition(String channel, Collection positions, Integer top){
        Map<Object, Collection<Comment>> result = new HashMap<>();
        if (positions == null || positions.size() == 0) return result;
        List<Comment> commentList = commentRelationMapper.groupByPosition(channel, positions, top);
        Collection<Comment> tmp;
        for(Comment comment : commentList){
            if (!result.containsKey(comment.getPosition())){
                tmp = new ArrayList<>();
                result.put(comment.getPosition(), tmp);
            }else{
                tmp = result.get(comment.getPosition());
            }
            tmp.add(comment);
        }
        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 sort = ids.length;
        List<Comment> commentList = select(commentMapper, ids);
        Map commentMap = Transform.getMap(commentList, Comment.class, "id");
        for (Integer id : ids){
            sort -= 1;
            Comment comment = (Comment)commentMap.get(id);
            if (comment == null) continue;
            if (comment.getSort() == sort) continue;
            update(commentMapper, Comment.builder()
                    .id(id)
                    .sort(sort)
                    .build()
            );
        }
    }

    public Comment add(Comment comment){
        int result = insert(commentMapper, comment);
        comment = one(commentMapper, comment.getId());
        if(comment == null){
            throw new SystemException("评价添加失败");
        }
        return comment;
    }

    public Comment edit(Comment comment){
        Comment in = one(commentMapper, comment.getId());
        if(in == null){
            throw new ParameterException("评价不存在");
        }
        int result = update(commentMapper, comment);
        return comment;
    }

    public boolean delete(Number id){
        Comment in = one(commentMapper, id);
        if(in == null){
            throw new ParameterException("评价不存在");
        }
        int result = delete(commentMapper, id);
        return result > 0;
    }

    public Comment get(Number id){
        Comment in = one(commentMapper, id);

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

    public Page<Comment> select(int page, int pageSize){
        return select(commentMapper, page, pageSize);
    }

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

    public List<Comment> select(Collection ids){
        return select(commentMapper, ids);
    }

}