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package service
import (
"fmt"
"net/http"
"pplx2api/config"
"pplx2api/core"
"pplx2api/logger"
"pplx2api/utils"
"strings"
"github.com/gin-gonic/gin"
)
type ChatCompletionRequest struct {
Model string `json:"model"`
Messages []map[string]interface{} `json:"messages"`
Stream bool `json:"stream"`
Tools []map[string]interface{} `json:"tools,omitempty"`
}
type ErrorResponse struct {
Error string `json:"error"`
}
// HealthCheckHandler handles the health check endpoint
func HealthCheckHandler(c *gin.Context) {
c.JSON(http.StatusOK, gin.H{
"status": "ok",
})
}
// ChatCompletionsHandler handles the chat completions endpoint
func ChatCompletionsHandler(c *gin.Context) {
// Parse request body
var req ChatCompletionRequest
if err := c.ShouldBindJSON(&req); err != nil {
c.JSON(http.StatusBadRequest, ErrorResponse{
Error: fmt.Sprintf("Invalid request: %v", err),
})
return
}
// logger.Info(fmt.Sprintf("Received request: %v", req))
// Validate request
if len(req.Messages) == 0 {
c.JSON(http.StatusBadRequest, ErrorResponse{
Error: "No messages provided",
})
return
}
// Get model or use default
model := req.Model
if model == "" {
model = "claude-3.7-sonnet"
}
openSearch := false
if strings.HasSuffix(model, "-search") {
openSearch = true
model = strings.TrimSuffix(model, "-search")
}
model = config.ModelMapGet(model, model) // 获取模型名称
var prompt strings.Builder
img_data_list := []string{}
// Format messages into a single prompt
for _, msg := range req.Messages {
role, roleOk := msg["role"].(string)
if !roleOk {
continue // 忽略无效格式
}
content, exists := msg["content"]
if !exists {
continue
}
prompt.WriteString(utils.GetRolePrefix(role)) // 获取角色前缀
switch v := content.(type) {
case string: // 如果 content 直接是 string
prompt.WriteString(v + "\n\n")
case []interface{}: // 如果 content 是 []interface{} 类型的数组
for _, item := range v {
if itemMap, ok := item.(map[string]interface{}); ok {
if itemType, ok := itemMap["type"].(string); ok {
if itemType == "text" {
if text, ok := itemMap["text"].(string); ok {
prompt.WriteString(text + "\n\n")
}
} else if itemType == "image_url" {
if imageUrl, ok := itemMap["image_url"].(map[string]interface{}); ok {
if url, ok := imageUrl["url"].(string); ok {
if len(url) > 50 {
logger.Info(fmt.Sprintf("Image URL: %s ……", url[:50]))
}
if strings.HasPrefix(url, "data:image/") {
// 保留 base64 编码的图片数据
url = strings.Split(url, ",")[1]
}
img_data_list = append(img_data_list, url) // 收集图片数据
}
}
}
}
}
}
}
}
fmt.Println(prompt.String()) // 输出最终构造的内容
fmt.Println("img_data_list_length:", len(img_data_list)) // 输出图片数据列表长度
var rootPrompt strings.Builder
rootPrompt.WriteString(prompt.String())
// 切号重试机制
var pplxClient *core.Client
index := config.Sr.NextIndex()
for i := 0; i < config.ConfigInstance.RetryCount; i++ {
if i > 0 {
prompt.Reset()
prompt.WriteString(rootPrompt.String())
}
index = (index + 1) % len(config.ConfigInstance.Sessions)
session, err := config.ConfigInstance.GetSessionForModel(index)
logger.Info(fmt.Sprintf("Using session for model %s: %s", model, session.SessionKey))
if err != nil {
logger.Error(fmt.Sprintf("Failed to get session for model %s: %v", model, err))
logger.Info("Retrying another session")
continue
}
// Initialize the Claude client
pplxClient = core.NewClient(session.SessionKey, config.ConfigInstance.Proxy, model, openSearch)
if len(img_data_list) > 0 {
err := pplxClient.UploadImage(img_data_list)
if err != nil {
logger.Error(fmt.Sprintf("Failed to upload file: %v", err))
logger.Info("Retrying another session")
continue
}
}
if prompt.Len() > config.ConfigInstance.MaxChatHistoryLength {
err := pplxClient.UploadText(prompt.String())
if err != nil {
logger.Error(fmt.Sprintf("Failed to upload text: %v", err))
logger.Info("Retrying another session")
continue
}
prompt.Reset()
prompt.WriteString(config.ConfigInstance.PromptForFile)
}
if _, err := pplxClient.SendMessage(prompt.String(), req.Stream, config.ConfigInstance.IsIncognito, c); err != nil {
logger.Error(fmt.Sprintf("Failed to send message: %v", err))
logger.Info("Retrying another session")
continue // Retry on error
}
return
}
logger.Error("Failed for all retries")
c.JSON(http.StatusInternalServerError, ErrorResponse{
Error: "Failed to process request after multiple attempts"})
}
func MoudlesHandler(c *gin.Context) {
c.JSON(http.StatusOK, gin.H{
"data": config.ResponseModles,
})
}
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