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optimize the code for reset the chat context

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This commit is contained in:
RockYang 2023-04-03 23:07:11 +08:00
parent b0be9f2e4d
commit 43e2743b9b
1 changed files with 20 additions and 9 deletions
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29
server/chat_handler.go
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@ -52,7 +52,7 @@ func (s *Server) ChatHandle(c *gin.Context) {
logger.Info("Receive a message: ", string(message))
// TODO: 当前只保持当前会话的上下文，部保存用户的所有的聊天历史记录，后期要考虑保存所有的历史记录
err = s.sendMessage(session, chatRole, string(message), client)
err = s.sendMessage(session, chatRole, string(message), client, false)
if err != nil {
logger.Error(err)
}
@ -61,7 +61,7 @@ func (s *Server) ChatHandle(c *gin.Context) {
}
// 将消息发送给 ChatGPT 并获取结果，通过 WebSocket 推送到客户端
func (s *Server) sendMessage(session types.ChatSession, role types.ChatRole, prompt string, ws Client) error {
func (s *Server) sendMessage(session types.ChatSession, role types.ChatRole, prompt string, ws Client, resetContext bool) error {
user, err := GetUser(session.Username)
if err != nil {
replyMessage(ws, "当前 user 无效，请使用合法的 user 登录！", false)
@ -140,12 +140,6 @@ func (s *Server) sendMessage(session types.ChatSession, role types.ChatRole, pro
if err == nil {
break
} else {
// 上下文超出长度了
if strings.Contains(err.Error(), "This model's maximum context length is 4097 tokens") {
logger.Info("会话上下文长度超出限制, Username: %s", user.Name)
replyMessage(ws, "温馨提示：会话上下文长度超出限制，已为您重置会话上下文！", false)
context = role.Context
}
failedKey = apiKey
failedProxyURL = proxyURL
}
@ -186,7 +180,16 @@ func (s *Server) sendMessage(session types.ChatSession, role types.ChatRole, pro
_ = utils.SaveConfig(s.Config, s.ConfigPath)
// 重发当前消息
return s.sendMessage(session, role, prompt, ws)
return s.sendMessage(session, role, prompt, ws, false)
// 上下文超出长度了
} else if strings.Contains(line, "This model's maximum context length is 4097 tokens") {
logger.Info("会话上下文长度超出限制, Username: %s", user.Name)
// 重置上下文，重发当前消息
delete(s.ChatContexts, ctxKey)
return s.sendMessage(session, role, prompt, ws, true)
} else if !strings.Contains(line, "data:") {
continue
}
err = json.Unmarshal([]byte(line[6:]), &responseBody)
@ -197,6 +200,10 @@ func (s *Server) sendMessage(session types.ChatSession, role types.ChatRole, pro
replyMessage(ws, "![](images/wx.png)", true)
break
}
if resetContext {
replyMessage(ws, "温馨提示：当前会话上下文长度超出限制，已为您重置会话上下文！", false)
}
// 初始化 role
if responseBody.Choices[0].Delta.Role != "" && message.Role == "" {
message.Role = responseBody.Choices[0].Delta.Role
@ -222,6 +229,10 @@ func (s *Server) sendMessage(session types.ChatSession, role types.ChatRole, pro
user.RemainingCalls -= 1
_ = PutUser(*user)
}
if message.Role == "" {
message.Role = "assistant"
}
// 追加上下文消息
useMsg := types.Message{Role: "user", Content: prompt}
context = append(context, useMsg)