new-api/relay/channel/mokaai/relay-mokaai.go

package mokaai

import (
	"bufio"
	"encoding/json"
	"io"
	"net/http"
	"strings"

	// "one-api/common/ctxkey"
	// "one-api/common/render"

	// "github.com/gin-gonic/gin"
	// "one-api/common"
	// "one-api/common/helper"
	// "one-api/common/logger"
	// "one-api/relay/adaptor/openai"
	// "one-api/relay/model"

	"github.com/gin-gonic/gin"
	"one-api/common"
	"one-api/dto"
	relaycommon "one-api/relay/common"
	"one-api/service"
	"time"
)

func ConvertCompletionsRequest(textRequest dto.GeneralOpenAIRequest) *Request {
	p, _ := textRequest.Prompt.(string)
	return &Request{
		Prompt:      p,
		MaxTokens:   textRequest.GetMaxTokens(),
		Stream:      textRequest.Stream,
		Temperature: textRequest.Temperature,
	}
}

func ConvertEmbeddingRequest(request dto.GeneralOpenAIRequest) *EmbeddingRequest {
	var input []string // Change input to []string

	switch v := request.Input.(type) {
	case string:
		input = []string{v} // Convert string to []string
	case []string:
		input = v // Already a []string, no conversion needed
	case []interface{}:
		for _, part := range v {
			if str, ok := part.(string); ok {
				input = append(input, str) // Append each string to the slice
			}
		}
	}

	return &EmbeddingRequest{
		Model: request.Model,
		Input: input, // Assign []string to Input
	}
}

func StreamHandler(c *gin.Context, resp *http.Response, info *relaycommon.RelayInfo) (*dto.OpenAIErrorWithStatusCode, *dto.Usage) {
	scanner := bufio.NewScanner(resp.Body)
	scanner.Split(bufio.ScanLines)

	service.SetEventStreamHeaders(c)
	id := service.GetResponseID(c)
	var responseText string
	isFirst := true

	for scanner.Scan() {
		data := scanner.Text()
		if len(data) < len("data: ") {
			continue
		}
		data = strings.TrimPrefix(data, "data: ")
		data = strings.TrimSuffix(data, "\r")

		if data == "[DONE]" {
			break
		}

		var response dto.ChatCompletionsStreamResponse
		err := json.Unmarshal([]byte(data), &response)
		if err != nil {
			common.LogError(c, "error_unmarshalling_stream_response: "+err.Error())
			continue
		}
		for _, choice := range response.Choices {
			choice.Delta.Role = "assistant"
			responseText += choice.Delta.GetContentString()
		}
		response.Id = id
		response.Model = info.UpstreamModelName
		err = service.ObjectData(c, response)
		if isFirst {
			isFirst = false
			info.FirstResponseTime = time.Now()
		}
		if err != nil {
			common.LogError(c, "error_rendering_stream_response: "+err.Error())
		}
	}

	if err := scanner.Err(); err != nil {
		common.LogError(c, "error_scanning_stream_response: "+err.Error())
	}
	usage, _ := service.ResponseText2Usage(responseText, info.UpstreamModelName, info.PromptTokens)
	if info.ShouldIncludeUsage {
		response := service.GenerateFinalUsageResponse(id, info.StartTime.Unix(), info.UpstreamModelName, *usage)
		err := service.ObjectData(c, response)
		if err != nil {
			common.LogError(c, "error_rendering_final_usage_response: "+err.Error())
		}
	}
	service.Done(c)

	err := resp.Body.Close()
	if err != nil {
		common.LogError(c, "close_response_body_failed: "+err.Error())
	}

	return nil, usage
}

func Handler(c *gin.Context, resp *http.Response, info *relaycommon.RelayInfo) (*dto.OpenAIErrorWithStatusCode, *dto.Usage) {
	responseBody, err := io.ReadAll(resp.Body)
	if err != nil {
		return service.OpenAIErrorWrapper(err, "read_response_body_failed", http.StatusInternalServerError), nil
	}
	err = resp.Body.Close()
	if err != nil {
		return service.OpenAIErrorWrapperLocal(err, "close_response_body_failed", http.StatusInternalServerError), nil
	}
	var response dto.TextResponse
	err = json.Unmarshal(responseBody, &response)
	if err != nil {
		return service.OpenAIErrorWrapper(err, "unmarshal_response_body_failed", http.StatusInternalServerError), nil
	}
	response.Model = info.UpstreamModelName
	var responseText string
	for _, choice := range response.Choices {
		responseText += choice.Message.StringContent()
	}
	usage, _ := service.ResponseText2Usage(responseText, info.UpstreamModelName, info.PromptTokens)
	response.Usage = *usage
	response.Id = service.GetResponseID(c)
	jsonResponse, err := json.Marshal(response)
	if err != nil {
		return service.OpenAIErrorWrapper(err, "marshal_response_body_failed", http.StatusInternalServerError), nil
	}
	c.Writer.Header().Set("Content-Type", "application/json")
	c.Writer.WriteHeader(resp.StatusCode)
	_, _ = c.Writer.Write(jsonResponse)
	return nil, usage
}