feat: auto translate and rewrite prompt for midjourney and stable-diffusion

api/utils/openai.go

@@ -1,8 +1,13 @@
 package utils
 
 import (
+	"chatplus/core/types"
+	"chatplus/store/model"
 	"fmt"
+	"github.com/imroc/req/v3"
 	"github.com/pkoukk/tiktoken-go"
+	"gorm.io/gorm"
+	"time"
 )
 
 func CalcTokens(text string, model string) (int, error) {
@@ -18,3 +23,64 @@ func CalcTokens(text string, model string) (int, error) {
 	token := tke.Encode(text, nil, nil)
 	return len(token), nil
 }
+
+type apiRes struct {
+	Model   string `json:"model"`
+	Choices []struct {
+		Index   int `json:"index"`
+		Message struct {
+			Role    string `json:"role"`
+			Content string `json:"content"`
+		} `json:"message"`
+		FinishReason string `json:"finish_reason"`
+	} `json:"choices"`
+}
+
+type apiErrRes struct {
+	Error struct {
+		Code    interface{} `json:"code"`
+		Message string      `json:"message"`
+		Param   interface{} `json:"param"`
+		Type    string      `json:"type"`
+	} `json:"error"`
+}
+
+func OpenAIRequest(db *gorm.DB, prompt string) (string, error) {
+	var apiKey model.ApiKey
+	res := db.Where("platform = ?", types.OpenAI).Where("type = ?", "chat").Where("enabled = ?", true).First(&apiKey)
+	if res.Error != nil {
+		return "", fmt.Errorf("error with fetch OpenAI API KEY：%v", res.Error)
+	}
+
+	messages := make([]interface{}, 1)
+	messages[0] = types.Message{
+		Role:    "user",
+		Content: prompt,
+	}
+
+	var response apiRes
+	var errRes apiErrRes
+	client := req.C()
+	if apiKey.ProxyURL != "" {
+		client.SetProxyURL(apiKey.ApiURL)
+	}
+	r, err := client.R().SetHeader("Content-Type", "application/json").
+		SetHeader("Authorization", "Bearer "+apiKey.Value).
+		SetBody(types.ApiRequest{
+			Model:       "gpt-3.5-turbo-0125",
+			Temperature: 0.9,
+			MaxTokens:   1024,
+			Stream:      false,
+			Messages:    messages,
+		}).
+		SetErrorResult(&errRes).
+		SetSuccessResult(&response).Post(apiKey.ApiURL)
+	if err != nil || r.IsErrorState() {
+		return "", fmt.Errorf("error with http request: %v%v%s", err, r.Err, errRes.Error.Message)
+	}
+
+	// 更新 API KEY 的最后使用时间
+	db.Model(&apiKey).UpdateColumn("last_used_at", time.Now().Unix())
+
+	return response.Choices[0].Message.Content, nil
+}