package com.xmzs.system.service.impl;
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import com.baomidou.mybatisplus.core.conditions.update.LambdaUpdateWrapper;
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import com.xmzs.common.core.domain.model.LoginUser;
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import com.xmzs.common.core.exception.ServiceException;
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import com.xmzs.common.core.exception.base.BaseException;
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import com.xmzs.common.satoken.utils.LoginHelper;
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import com.xmzs.system.domain.ChatToken;
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import com.xmzs.system.domain.SysUser;
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import com.xmzs.system.domain.bo.ChatMessageBo;
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import com.xmzs.system.domain.bo.SysModelBo;
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import com.xmzs.system.domain.vo.SysModelVo;
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import com.xmzs.system.mapper.SysUserMapper;
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import com.xmzs.system.service.IChatCostService;
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import com.xmzs.system.service.IChatMessageService;
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import com.xmzs.system.service.IChatTokenService;
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import com.xmzs.system.service.ISysModelService;
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import lombok.RequiredArgsConstructor;
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import lombok.extern.slf4j.Slf4j;
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import org.springframework.stereotype.Service;
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import java.util.List;
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/**
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* @author hncboy
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* @date 2023/3/22 19:41
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* 聊天相关业务实现类
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*/
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@Slf4j
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@Service
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@RequiredArgsConstructor
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public class ChatCostServiceImpl implements IChatCostService {
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private final SysUserMapper sysUserMapper;
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private final IChatMessageService chatMessageService;
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private final IChatTokenService chatTokenService;
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private final ISysModelService sysModelService;
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/**
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* 根据消耗的tokens扣除余额
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*
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* @param chatMessageBo
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*/
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public void deductToken(ChatMessageBo chatMessageBo) {
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// 计算总token数
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ChatToken chatToken = chatTokenService.queryByUserId(chatMessageBo.getUserId(), chatMessageBo.getModelName());
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if (chatToken == null) {
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chatToken = new ChatToken();
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chatToken.setToken(0);
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}
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int totalTokens = chatToken.getToken() + chatMessageBo.getTotalTokens();
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// 如果总token数大于等于1000,进行费用扣除
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if (totalTokens >= 1000) {
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// 计算费用
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int token1 = totalTokens / 1000;
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int token2 = totalTokens % 1000;
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if (token2 > 0) {
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// 保存剩余tokens
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chatToken.setToken(token2);
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chatTokenService.editToken(chatToken);
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} else {
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chatTokenService.resetToken(chatMessageBo.getUserId(), chatMessageBo.getModelName());
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}
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// 扣除用户余额
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SysModelBo sysModelBo = new SysModelBo();
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sysModelBo.setModelName(chatMessageBo.getModelName());
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List<SysModelVo> sysModelList = sysModelService.queryList(sysModelBo);
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double modelPrice = sysModelList.get(0).getModelPrice();
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Double numberCost = token1 * modelPrice;
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deductUserBalance(chatMessageBo.getUserId(), numberCost);
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chatMessageBo.setDeductCost(numberCost);
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} else {
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// 扣除用户余额
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deductUserBalance(chatMessageBo.getUserId(), 0.0);
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chatMessageBo.setDeductCost(0d);
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chatMessageBo.setRemark("不满1kToken,计入下一次!");
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chatToken.setToken(totalTokens);
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chatToken.setModelName(chatMessageBo.getModelName());
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chatToken.setUserId(chatMessageBo.getUserId());
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chatTokenService.editToken(chatToken);
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}
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// 保存消息记录
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chatMessageService.insertByBo(chatMessageBo);
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}
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/**
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* 从用户余额中扣除费用
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*
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* @param userId 用户ID
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* @param numberCost 要扣除的费用
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*/
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@Override
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public void deductUserBalance(Long userId, Double numberCost) {
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SysUser sysUser = sysUserMapper.selectById(userId);
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if (sysUser == null) {
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return;
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}
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Double userBalance = sysUser.getUserBalance();
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if (userBalance < numberCost || userBalance == 0) {
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throw new ServiceException("余额不足，请联系管理员充值!");
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}
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sysUserMapper.update(null,
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new LambdaUpdateWrapper<SysUser>()
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.set(SysUser::getUserBalance, Math.max(userBalance - numberCost, 0))
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.eq(SysUser::getUserId, userId));
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}
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/**
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* 扣除任务费用
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*
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*/
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@Override
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public void taskDeduct(String type,String prompt, double cost) {
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// 判断用户是否付费
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checkUserGrade();
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// 扣除费用
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deductUserBalance(getUserId(), cost);
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// 保存消息记录
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ChatMessageBo chatMessageBo = new ChatMessageBo();
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chatMessageBo.setUserId(getUserId());
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chatMessageBo.setModelName(type);
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chatMessageBo.setContent(prompt);
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chatMessageBo.setDeductCost(cost);
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chatMessageBo.setTotalTokens(0);
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chatMessageService.insertByBo(chatMessageBo);
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}
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/**
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* 判断用户是否付费
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*/
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@Override
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public void checkUserGrade() {
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SysUser sysUser = sysUserMapper.selectById(getUserId());
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if("0".equals(sysUser.getUserGrade())){
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throw new BaseException("免费用户暂时不支持此模型,请切换gpt-3.5-turbo模型或者点击《进入市场选购您的商品》充值后使用!");
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}
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}
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/**
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* 获取用户Id
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*
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* @return
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*/
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public Long getUserId() {
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LoginUser loginUser = LoginHelper.getLoginUser();
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if (loginUser == null) {
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throw new BaseException("用户未登录！");
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}
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return loginUser.getUserId();
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}
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}
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