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config.go
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config.go
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package config
import (
"encoding/json"
"fmt"
"log"
"os"
"strconv"
"sync"
"github.com/869413421/chatgpt-web/pkg/logger"
)
// Configuration 项目配置
type Configuration struct {
// gpt apikey
ApiKey string `json:"api_key"`
// openai提供的接口 空字符串使用默认接口
ApiURL string `json:"api_url"`
// 服务端口
Port int `json:"port"`
// 监听接口
Listen string `json:"listen"`
// AI特征
BotDesc string `json:"bot_desc"`
// 代理
Proxy string `json:"proxy"`
// GPT请求最大字符数
MaxTokens int `json:"max_tokens"`
// GPT模型
Model string `json:"model"`
// 热度
Temperature float64 `json:"temperature"`
TopP float32 `json:"top_p"`
PresencePenalty float32 `json:"presence_penalty"`
FrequencyPenalty float32 `json:"frequency_penalty"`
AuthUser string `json:"auth_user"` // 账号,默认空不验证
AuthPassword string `json:"auth_password"` // 密码
}
var config *Configuration
var once sync.Once
// LoadConfig 加载配置
func LoadConfig() *Configuration {
once.Do(func() {
// 给配置赋默认值
config = &Configuration{
MaxTokens: 60,
ApiURL: "",
Port: 8080,
Listen: "",
Model: "gpt-3.5-turbo-0301",
Temperature: 0.9,
TopP: 1,
FrequencyPenalty: 0.0,
PresencePenalty: 0.6,
}
// 判断配置文件是否存在,存在直接JSON读取
_, err := os.Stat(CLI.Config)
if err == nil {
f, err := os.Open(CLI.Config)
if err != nil {
log.Fatalf("open config err: %v", err)
return
}
defer f.Close()
encoder := json.NewDecoder(f)
err = encoder.Decode(config)
if err != nil {
log.Fatalf("decode config err: %v", err)
return
}
}
// 有环境变量使用环境变量
ApiKey := os.Getenv("APIKEY")
ApiURL := os.Getenv("APIURL")
Model := os.Getenv("MODEL")
MaxTokens := os.Getenv("MAX_TOKENS")
Temperature := os.Getenv("TEMPREATURE")
TopP := os.Getenv("TOP_P")
FrequencyPenalty := os.Getenv("FREQ")
PresencePenalty := os.Getenv("PRES")
BotDesc := os.Getenv("BOT_DESC")
Proxy := os.Getenv("PROXY")
AuthUser := os.Getenv("AUTH_USER")
AuthPassword := os.Getenv("AUTH_PASSWORD")
if ApiKey != "" {
config.ApiKey = ApiKey
}
if ApiURL != "" {
config.ApiURL = ApiURL
}
if Proxy != "" {
config.Proxy = Proxy
}
if Model != "" {
config.Model = Model
}
if BotDesc != "" {
config.BotDesc = BotDesc
}
if MaxTokens != "" {
max, err := strconv.Atoi(MaxTokens)
if err != nil {
logger.Danger(fmt.Sprintf("config MaxTokens err: %v ,get is %v", err, MaxTokens))
return
}
config.MaxTokens = max
}
if Temperature != "" {
temp, err := strconv.ParseFloat(Temperature, 64)
if err != nil {
logger.Danger(fmt.Sprintf("config Temperature err: %v ,get is %v", err, Temperature))
return
}
config.Temperature = temp
}
if TopP != "" {
temp, err := strconv.ParseFloat(TopP, 32)
if err != nil {
logger.Danger(fmt.Sprintf("config Temperature err: %v ,get is %v", err, TopP))
return
}
config.TopP = float32(temp)
}
if FrequencyPenalty != "" {
temp, err := strconv.ParseFloat(FrequencyPenalty, 32)
if err != nil {
logger.Danger(fmt.Sprintf("config Temperature err: %v ,get is %v", err, FrequencyPenalty))
return
}
config.FrequencyPenalty = float32(temp)
}
if PresencePenalty != "" {
temp, err := strconv.ParseFloat(PresencePenalty, 32)
if err != nil {
logger.Danger(fmt.Sprintf("config Temperature err: %v ,get is %v", err, PresencePenalty))
return
}
config.PresencePenalty = float32(temp)
}
if AuthUser != "" {
config.AuthUser = AuthUser
}
if AuthPassword != "" {
config.AuthPassword = AuthPassword
}
})
if config.ApiKey == "" {
logger.Danger("config err: api key required")
}
return config
}