Wire up bot entry point

cmd/bot/main.go

@@ -0,0 +1,101 @@
+package main
+
+import (
+	"context"
+	"log/slog"
+	"os"
+	"os/signal"
+	"syscall"
+
+	"github.com/disgoorg/disgo/bot"
+	"github.com/disgoorg/disgolink/v4/disgolink"
+	"github.com/joho/godotenv"
+
+	"discord-music-bot/internal/commands"
+	"discord-music-bot/internal/config"
+	"discord-music-bot/internal/discord"
+	"discord-music-bot/internal/lavalink"
+	"discord-music-bot/internal/logging"
+	"discord-music-bot/internal/music"
+)
+
+func main() {
+	_ = godotenv.Load()
+
+	cfg, err := config.Load()
+	if err != nil {
+		slog.Error("invalid configuration", slog.Any("err", err))
+		os.Exit(1)
+	}
+
+	logger := logging.New(cfg.Debug)
+
+	ctx, stop := signal.NotifyContext(context.Background(), syscall.SIGINT, syscall.SIGTERM)
+	defer stop()
+
+	discordClient, err := discord.NewClient(cfg.DiscordToken, logger)
+	if err != nil {
+		logger.Error("failed to build discord client", slog.Any("err", err))
+		os.Exit(1)
+	}
+	defer discordClient.Close(context.Background())
+
+	lavalinkClient, err := lavalink.Connect(ctx, discordClient.ApplicationID, logger, disgolink.NodeConfig{
+		Name:     cfg.LavalinkNodeName,
+		Address:  cfg.LavalinkAddress,
+		Password: cfg.LavalinkPassword,
+		Secure:   cfg.LavalinkSecure,
+	})
+	if err != nil {
+		logger.Error("failed to connect to lavalink", slog.Any("err", err))
+		os.Exit(1)
+	}
+	defer lavalinkClient.Close()
+
+	musicManager := music.NewManager(lavalinkClient, logger)
+	lavalinkClient.AddListeners(disgolink.NewListenerFunc(musicManager.OnTrackEnd))
+
+	deps := &commands.Dependencies{
+		Discord:  discordClient,
+		Lavalink: lavalinkClient,
+		Music:    musicManager,
+	}
+
+	registry := commands.NewRegistry(
+		commands.NewPlayCommand(deps),
+		commands.NewSkipCommand(deps),
+		commands.NewStopCommand(deps),
+		commands.NewPauseCommand(deps),
+		commands.NewResumeCommand(deps),
+		commands.NewQueueCommand(deps),
+		commands.NewNowPlayingCommand(deps),
+		commands.NewSeekCommand(deps),
+		commands.NewVolumeCommand(deps),
+		commands.NewLoopCommand(deps),
+		commands.NewShuffleCommand(deps),
+		commands.NewRemoveCommand(deps),
+	)
+
+	router := discord.NewRouter(registry, logger)
+	voiceForwarder := discord.NewVoiceForwarder(discordClient, lavalinkClient, musicManager, logger)
+
+	discordClient.AddEventListeners(
+		bot.NewListenerFunc(router.OnApplicationCommand),
+		bot.NewListenerFunc(voiceForwarder.OnVoiceStateUpdate),
+		bot.NewListenerFunc(voiceForwarder.OnVoiceServerUpdate),
+	)
+
+	if err := discord.RegisterCommands(discordClient, registry.Definitions()); err != nil {
+		logger.Error("failed to register commands", slog.Any("err", err))
+		os.Exit(1)
+	}
+
+	if err := discordClient.OpenGateway(ctx); err != nil {
+		logger.Error("failed to open gateway", slog.Any("err", err))
+		os.Exit(1)
+	}
+
+	logger.Info("bot is running", slog.String("application_id", discordClient.ApplicationID.String()))
+	<-ctx.Done()
+	logger.Info("shutting down")
+}