feat: integrate music commands with Lavalink support

- Added new music commands: play, queue, and volume.
- Implemented music management using disgolink for Lavalink integration.
- Updated bot initialization to include Lavalink host and password.
- Enhanced interaction handling for music commands, requiring DJ role for usage.
- Introduced now playing message with interactive buttons for controlling playback.
- Updated dependencies in go.mod for disgolink and snowflake.

internal/bot/bot.go

@@ -5,6 +5,7 @@ import (
 	"velox-bot/internal/commands"
 	"velox-bot/internal/db/services"
 	"velox-bot/internal/events"
+	"velox-bot/internal/music"
 
 	"github.com/bwmarrin/discordgo"
 )
@@ -16,9 +17,11 @@ type Bot struct {
 	Commands           []*discordgo.ApplicationCommand
 	registeredCommands []*discordgo.ApplicationCommand
 	Services           *services.Services
+	LavalinkHost       string
+	LavalinkPass       string
 }
 
-func NewBot(token, appID, guildID string, cmds []*discordgo.ApplicationCommand, services *services.Services) (*Bot, error) {
+func NewBot(token, appID, guildID, lavalinkHost, lavalinkPass string, cmds []*discordgo.ApplicationCommand, services *services.Services) (*Bot, error) {
 	session, err := discordgo.New("Bot " + token)
 	if err != nil {
 		return nil, err
@@ -31,11 +34,13 @@ func NewBot(token, appID, guildID string, cmds []*discordgo.ApplicationCommand,
 	session.Identify.Intents = discordgo.IntentsGuilds | discordgo.IntentsGuildMessages | discordgo.IntentsGuildVoiceStates
 
 	return &Bot{
-		Session:  session,
-		AppID:    appID,
-		GuildID:  guildID,
-		Commands: cmds,
-		Services: services,
+		Session:      session,
+		AppID:        appID,
+		GuildID:      guildID,
+		Commands:     cmds,
+		Services:     services,
+		LavalinkHost: lavalinkHost,
+		LavalinkPass: lavalinkPass,
 	}, nil
 }
 
@@ -44,6 +49,8 @@ func (b *Bot) Start() error {
 		return err
 	}
 
+	_ = music.Init(b.Session, b.AppID, b.LavalinkHost, b.LavalinkPass)
+
 	b.registeredCommands = make([]*discordgo.ApplicationCommand, len(b.Commands))
 	for _, cmd := range b.Commands {
 		created, err := b.Session.ApplicationCommandCreate(b.AppID, b.GuildID, cmd)
@@ -62,8 +69,12 @@ func (b *Bot) Start() error {
 
 	b.Session.AddHandler(func(s *discordgo.Session, vs *discordgo.VoiceStateUpdate) {
 		events.HandleVoiceStateUpdate(s, vs, b.Services)
+		music.OnVoiceStateUpdate(vs)
 	})
 
+	b.Session.AddHandler(func(s *discordgo.Session, ev *discordgo.VoiceServerUpdate) {
+		music.OnVoiceServerUpdate(ev)
+	})
 	return nil
 }