wip

cmd/commander/main.go

@@ -1,7 +1,65 @@
 // Copyright © 2024 github
 // Licensed under the Apache License, Version 2.0 (the "License").
+
 package main
 
+import (
+	"flag"
+	"log"
+	"log/slog"
+	"os"
+)
+
 func main() {
-	Execute()
+	// Define flags
+	helpFlag := flag.Bool("help", false, "Display help message")
+	logLevel := flag.String("loglevel", "info", "Set log level: debug, info, warn, error")
+	mode := flag.String("mode", "standalone", "Set mode: standalone, container, cluster")
+
+	// Custom usage function for the help flag
+	flag.Usage = func() {
+		log.Printf("Usage of %s:\n", os.Args[0])
+		flag.PrintDefaults()
+		log.Println("\nExamples:")
+		log.Println("  go run main.go --loglevel=Debug --mode=container")
+	}
+
+	// Parse the flags
+	flag.Parse()
+
+	// Handle the help flag
+	if *helpFlag {
+		flag.Usage()
+		return
+	}
+
+	// Apply 'loglevel' flag
+	switch *logLevel {
+	case "debug":
+		slog.SetLogLoggerLevel(slog.LevelDebug)
+	case "info":
+		slog.SetLogLoggerLevel(slog.LevelInfo)
+	case "warn":
+		slog.SetLogLoggerLevel(slog.LevelWarn)
+	case "error":
+		slog.SetLogLoggerLevel(slog.LevelError)
+	default:
+		log.Printf("Invalid logging verbosity level: %s", *logLevel)
+		os.Exit(1)
+	}
+
+	// Apply 'mode' flag
+	switch *mode {
+	case "standalone":
+	case "container":
+	case "cluster":
+	default:
+		slog.Error("Invalid value for --mode. Allowed values are: standalone, container, cluster\n")
+		os.Exit(1)
+	}
+
+	// Output configuration summary
+	log.Printf("Help: %t\n", *helpFlag)
+	log.Printf("Log Level: %s\n", *logLevel)
+	log.Printf("Mode: %s\n", *mode)
 }