openai: add make it possible to set the "user" in the gpt completion …

…call

command/openai/client.go

@@ -20,6 +20,7 @@ func CallChatGPT(cfg Config, inputMessages []ChatMessage, stream bool) (<-chan s
 		Temperature: cfg.Temperature,
 		Seed:        cfg.Seed,
 		MaxTokens:   cfg.MaxTokens,
+		User:        cfg.APILogUser,
 		Stream:      stream,
 		Messages:    inputMessages,
 	})

command/openai/config.go

@@ -1,6 +1,7 @@
 package openai
 
 import (
+	"os"
 	"time"
 
 	"github.com/innogames/slack-bot/v2/bot/config"
@@ -27,6 +28,10 @@ type Config struct {
 
 	// log all input+output text to the logger. This could include personal information, therefore disabled by default!
 	LogTexts bool `mapstructure:"log_texts"`
+
+	// user name to identify the bot which should be part of the OpenAI usage statistics.
+	// use {hostname} to set the hostname of the machine
+	APILogUser string `mapstructure:"api_log_user"`
 }
 
 // IsEnabled checks if token is set
@@ -46,5 +51,9 @@ func loadConfig(config *config.Config) Config {
 	cfg := defaultConfig
 	_ = config.LoadCustom("openai", &cfg)
 
+	if cfg.APILogUser == "{hostname}" {
+		cfg.APILogUser, _ = os.Hostname()
+	}
+
 	return cfg
 }