Create the logger only after reading the config

cmd/birthdaybot/main.go

@@ -2,6 +2,7 @@ package main
 
 import (
 	"flag"
+	"fmt"
 	"os"
 	"os/signal"
 	"syscall"
@@ -11,35 +12,32 @@ import (
 	"github.com/charmbracelet/log"
 )
 
-func configureLogger(config *model.Config, logger *log.Logger) {
+func loggerFromConfig(config *model.Config) *log.Logger {
 	// ToDo: apply config to logger
+	return log.New(os.Stderr)
 }
 
 func main() {
 	configFlag := flag.String("config", "birthdaybot.yml", "path to the configuration file")
 	flag.Parse()
 
-	logger := log.New(os.Stderr)
-
 	config, err := model.ReadConfig(*configFlag)
 	if err != nil {
-		logger.Error("error reading config", "configPath", *configFlag, "error", err)
+		fmt.Fprintf(os.Stderr, "ERROR: error reading config %q: %s\n", *configFlag, err)
 		os.Exit(1)
 	}
 
 	if err := config.IsValid(); err != nil {
-		logger.Error("invalid config", "configPath", *configFlag, "error", err)
+		fmt.Fprintf(os.Stderr, "ERROR: invalid config %q: %s\n", *configFlag, err)
 		os.Exit(1)
 	}
 
-	configureLogger(config, logger)
-
 	srv, err := server.New(
-		server.WithLogger(logger),
+		server.WithLogger(loggerFromConfig(config)),
 		server.WithConfig(config),
 	)
 	if err != nil {
-		logger.Error("error creating server", "error", err)
+		fmt.Fprintf(os.Stderr, "ERROR: error creating server: %s\n", err)
 		os.Exit(1)
 	}