Cleanup - WIP

cmd/vppn/main.go

@@ -1,8 +1,48 @@
 package main
 
-import "log"
+import (
+	"flag"
+	"log"
+	"os"
+	"path/filepath"
+
+	"vppn/peer"
+)
 
 func main() {
-	// TODO: construct peer.App and call Run (audit C1).
-	log.Fatal("not yet implemented")
+	log.SetFlags(0)
+
+	name := flag.String("name", "", "network name (required)")
+	hub := flag.String("hub", "", "hub base URL (required)")
+	apiKey := flag.String("api-key", "", "API key (required)")
+	flag.Parse()
+
+	if *name == "" || *hub == "" || *apiKey == "" {
+		flag.Usage()
+		os.Exit(1)
+	}
+
+	statePath := networkStatePath(*name)
+
+	state, err := peer.LoadOrInit(statePath, *hub, *apiKey)
+	if err != nil {
+		log.Fatalf("init: %v", err)
+	}
+
+	app, err := peer.New(state, *hub, *apiKey, *name)
+	if err != nil {
+		log.Fatalf("start: %v", err)
+	}
+
+	if err := app.Run(); err != nil {
+		log.Fatalf("run: %v", err)
+	}
+}
+
+func networkStatePath(name string) string {
+	home, err := os.UserHomeDir()
+	if err != nil {
+		return filepath.Join(".vppn", name, "state.json")
+	}
+	return filepath.Join(home, ".vppn", name, "state.json")
 }