feat: 完善openai转claude支持

relay/channel/openai/helper.go

@@ -31,6 +31,9 @@ func handleClaudeFormat(c *gin.Context, data string, info *relaycommon.RelayInfo
 		return err
 	}
 
+	if streamResponse.Usage != nil {
+		info.ClaudeConvertInfo.Usage = streamResponse.Usage
+	}
 	claudeResponses := service.StreamResponseOpenAI2Claude(&streamResponse, info)
 	for _, resp := range claudeResponses {
 		helper.ClaudeData(c, *resp)
@@ -170,15 +173,14 @@ func handleFinalResponse(c *gin.Context, info *relaycommon.RelayInfo, lastStream
 		helper.Done(c)
 
 	case relaycommon.RelayFormatClaude:
+		info.ClaudeConvertInfo.Done = true
 		var streamResponse dto.ChatCompletionsStreamResponse
 		if err := json.Unmarshal(common.StringToByteSlice(lastStreamData), &streamResponse); err != nil {
 			common.SysError("error unmarshalling stream response: " + err.Error())
 			return
 		}
 
-		if !containStreamUsage {
-			streamResponse.Usage = usage
-		}
+		info.ClaudeConvertInfo.Usage = usage
 
 		claudeResponses := service.StreamResponseOpenAI2Claude(&streamResponse, info)
 		for _, resp := range claudeResponses {

relay/channel/openai/relay-openai.go

@@ -170,8 +170,10 @@ func OaiStreamHandler(c *gin.Context, resp *http.Response, info *relaycommon.Rel
 			}
 		}
 	}
+
 	if shouldSendLastResp {
 		sendStreamData(c, info, lastStreamData, forceFormat, thinkToContent)
+		//err = handleStreamFormat(c, info, lastStreamData, forceFormat, thinkToContent)
 	}
 
 	// 处理token计算

relay/common/relay_info.go

@@ -19,13 +19,18 @@ type ThinkingContentInfo struct {
 }
 
 const (
-	LastMessageTypeText  = "text"
-	LastMessageTypeTools = "tools"
+	LastMessageTypeNone     = "none"
+	LastMessageTypeText     = "text"
+	LastMessageTypeTools    = "tools"
+	LastMessageTypeThinking = "thinking"
 )
 
 type ClaudeConvertInfo struct {
 	LastMessagesType string
 	Index            int
+	Usage            *dto.Usage
+	FinishReason     string
+	Done             bool
 }
 
 const (
@@ -113,7 +118,7 @@ func GenRelayInfoClaude(c *gin.Context) *RelayInfo {
 	info.RelayFormat = RelayFormatClaude
 	info.ShouldIncludeUsage = false
 	info.ClaudeConvertInfo = ClaudeConvertInfo{
-		LastMessagesType: LastMessageTypeText,
+		LastMessagesType: LastMessageTypeNone,
 	}
 	return info
 }