Add cli

subcmd/subcmd.go

@@ -0,0 +1,36 @@
+package subcmd
+
+import (
+	"flag"
+	"fmt"
+	"os"
+)
+
+func SubCmd() {
+	agentCmd := flag.NewFlagSet("agent", flag.ExitOnError)
+	agentLevel := agentCmd.Uint64("level", 1, "Level of the agent from 1-5")
+	agentName := agentCmd.String("name", "", "Name of the agent")
+
+	missionCmd := flag.NewFlagSet("mission", flag.ExitOnError)
+	missionName := missionCmd.String("codename", "classified", "Codename of the mission")
+	missionImpossible := missionCmd.Bool("impossible", false, "Is the mission impossible?")
+
+	if len(os.Args) < 2 {
+		fmt.Fprintln(os.Stderr, "A subcommand must be provided ('mission', 'agent')")
+		os.Exit(2)
+	}
+
+	switch os.Args[1] {
+	case "agent":
+		agentCmd.Parse(os.Args[2:])
+		fmt.Println("Agent level:", *agentLevel)
+		fmt.Println("Agent name:", *agentName)
+	case "mission":
+		missionCmd.Parse(os.Args[2:])
+		fmt.Println("Mission codename:", *missionName)
+		fmt.Println("Mission impossible?", *missionImpossible)
+	default:
+		fmt.Fprintln(os.Stderr, "Invalid subcommand. Only valid subcommands are 'mission' and 'agent'")
+		os.Exit(2)
+	}
+}