internal/commands/music/public/play.go

@@ -2,8 +2,6 @@ package public
 
 import (
 	"fmt"
-	"net/url"
-	"strings"
 	"velox-bot/internal/commands/music/shared"
 	"velox-bot/internal/music"
 
@@ -49,13 +47,6 @@ func PlayHandler(s *discordgo.Session, i *discordgo.InteractionCreate) {
 		return
 	}
 
-	// If user provided plain text, turn it into a YouTube search
-	if !strings.HasPrefix(query, "http://") && !strings.HasPrefix(query, "https://") && !strings.HasPrefix(query, "ytsearch:") {
-		query = "ytsearch:" + query
-	} else {
-		query = normalizeYouTubeRadioURL(query)
-	}
-
 	vs, err := findUserVoiceState(s, i.GuildID, i.Member.User.ID)
 	if err != nil {
 		_, _ = s.InteractionResponseEdit(i.Interaction, &discordgo.WebhookEdit{
@@ -90,37 +81,6 @@ func PlayHandler(s *discordgo.Session, i *discordgo.InteractionCreate) {
 
 func ptr[T any](v T) *T { return new(v) }
 
-// normalizeYouTubeRadioURL strips auto-generated "radio/mix" params like:
-// https://www.youtube.com/watch?v=ID&list=RDID&start_radio=1 -> https://www.youtube.com/watch?v=ID
-// It intentionally does NOT strip normal playlist URLs.
-func normalizeYouTubeRadioURL(raw string) string {
-	u, err := url.Parse(raw)
-	if err != nil || u == nil {
-		return raw
-	}
-
-	host := strings.ToLower(u.Host)
-	if !strings.Contains(host, "youtube.com") || u.Path != "/watch" {
-		return raw
-	}
-
-	q := u.Query()
-	v := q.Get("v")
-	if v == "" {
-		return raw
-	}
-
-	list := q.Get("list")
-	_, hasStartRadio := q["start_radio"]
-	if !hasStartRadio && !strings.HasPrefix(list, "RD") {
-		return raw
-	}
-
-	u.RawQuery = url.Values{"v": []string{v}}.Encode()
-	u.Fragment = ""
-	return u.String()
-}
-
 func findUserVoiceState(s *discordgo.Session, guildID, userID string) (*discordgo.VoiceState, error) {
 	g, err := s.State.Guild(guildID)
 	if err != nil {

internal/music/listener.go

@@ -100,6 +100,30 @@ func dispatchCommand(cmd musicrepo.MusicCommand) error {
 		ToggleRepeatQueue(guildID)
 		return nil
 
+	case "add_song":
+		var payload struct {
+			Query          string `json:"query"`
+			VoiceChannelID string `json:"voice_channel_id"`
+		}
+		if err := json.Unmarshal(cmd.Payload, &payload); err != nil {
+			return fmt.Errorf("unmarshal payload: %w", err)
+		}
+		requesterID := strconv.FormatInt(cmd.RequestedBy, 10)
+
+		// A voice channel means "start fresh" (nothing was playing, the
+		// dashboard had the user pick one), otherwise this just adds to
+		// whatever's already going.
+		if payload.VoiceChannelID != "" {
+			// Voice channels have their own built-in text chat at the same
+			// channel ID, post the now-playing embed there so starting
+			// playback from the dashboard still shows up somewhere in
+			// Discord, same as starting it with /play would.
+			_, _, err := EnqueueAndPlay(guildID, payload.VoiceChannelID, payload.VoiceChannelID, payload.Query, "Dashboard", requesterID)
+			return err
+		}
+		_, err := AddToQueue(guildID, payload.Query, requesterID)
+		return err
+
 	default:
 		return fmt.Errorf("unknown command type %q", cmd.CommandType)
 	}

internal/music/manager.go

@@ -6,6 +6,7 @@ import (
 	"log"
 	"net/url"
 	"strconv"
+	"strings"
 	"sync"
 	"time"
 	"velox-bot/internal/db/repos/musicrepo"
@@ -283,23 +284,50 @@ func syncState(guidID string) {
 
 }
 
-func EnqueueAndPlay(guildID, voiceChannelID, textChannelID, query, requester, requesterID string) (*TrackEntry, bool, error) {
-	if manager == nil {
-		return nil, false, fmt.Errorf("music manager not initialized")
+// NormalizeQuery turns plain text into a YouTube search and strips
+// auto-generated "radio/mix" params off a pasted YouTube URL
+// (https://www.youtube.com/watch?v=ID&list=RDID&start_radio=1 becomes
+// .../watch?v=ID), while leaving normal playlist URLs and non-YouTube
+// links (SoundCloud, etc.) untouched. Every entry point that accepts a
+// user-supplied query - /play and the dashboard's "add song" - should
+// normalize through this before handing the query to Lavalink.
+func NormalizeQuery(query string) string {
+	if !strings.HasPrefix(query, "http://") && !strings.HasPrefix(query, "https://") && !strings.HasPrefix(query, "ytsearch:") {
+		return "ytsearch:" + query
 	}
 
-	// Join voice channel
-	if err := manager.session.ChannelVoiceJoinManual(guildID, voiceChannelID, false, false); err != nil {
-		return nil, false, fmt.Errorf("join voice channel: %w", err)
+	u, err := url.Parse(query)
+	if err != nil || u == nil {
+		return query
 	}
 
-	gp := getOrCreateGuildPlayer(guildID)
-	if textChannelID != "" {
-		manager.mu.Lock()
-		gp.TextChannelID = textChannelID
-		manager.mu.Unlock()
+	host := strings.ToLower(u.Host)
+	if !strings.Contains(host, "youtube.com") || u.Path != "/watch" {
+		return query
 	}
 
+	q := u.Query()
+	v := q.Get("v")
+	if v == "" {
+		return query
+	}
+
+	list := q.Get("list")
+	_, hasStartRadio := q["start_radio"]
+	if !hasStartRadio && !strings.HasPrefix(list, "RD") {
+		return query
+	}
+
+	u.RawQuery = url.Values{"v": []string{v}}.Encode()
+	u.Fragment = ""
+	return u.String()
+}
+
+// resolveTracks searches Lavalink for query (already normalized) and
+// returns a playable track list - a single track, a search result's
+// first hit, or a whole playlist (rotated to respect Lavalink's own
+// selectedTrack when present).
+func resolveTracks(query string) ([]lavalink.Track, error) {
 	var loadedTracks []lavalink.Track
 
 	manager.client.BestNode().LoadTracksHandler(
@@ -337,7 +365,7 @@ func EnqueueAndPlay(guildID, voiceChannelID, textChannelID, query, requester, re
 	)
 
 	if len(loadedTracks) == 0 {
-		return nil, false, fmt.Errorf("no tracks found for query")
+		return nil, fmt.Errorf("no tracks found for query")
 	}
 
 	// Some sources may return unplayable entries; pick the first with an encoded track.
@@ -352,6 +380,31 @@ func EnqueueAndPlay(guildID, voiceChannelID, textChannelID, query, requester, re
 		loadedTracks = append(loadedTracks[firstPlayableIdx:], loadedTracks[:firstPlayableIdx]...)
 	}
 
+	return loadedTracks, nil
+}
+
+func EnqueueAndPlay(guildID, voiceChannelID, textChannelID, query, requester, requesterID string) (*TrackEntry, bool, error) {
+	if manager == nil {
+		return nil, false, fmt.Errorf("music manager not initialized")
+	}
+
+	// Join voice channel
+	if err := manager.session.ChannelVoiceJoinManual(guildID, voiceChannelID, false, false); err != nil {
+		return nil, false, fmt.Errorf("join voice channel: %w", err)
+	}
+
+	gp := getOrCreateGuildPlayer(guildID)
+	if textChannelID != "" {
+		manager.mu.Lock()
+		gp.TextChannelID = textChannelID
+		manager.mu.Unlock()
+	}
+
+	loadedTracks, err := resolveTracks(NormalizeQuery(query))
+	if err != nil {
+		return nil, false, err
+	}
+
 	entries := make([]TrackEntry, len(loadedTracks))
 	for idx, t := range loadedTracks {
 		entries[idx] = TrackEntry{
@@ -385,6 +438,47 @@ func EnqueueAndPlay(guildID, voiceChannelID, textChannelID, query, requester, re
 	return &firstEntry, shouldStart, nil
 }
 
+// AddToQueue adds a track to a guild's existing queue without joining a
+// voice channel, unlike EnqueueAndPlay it can't start a brand new
+// session (that needs a voice channel to join, which this has no way to
+// pick), so it requires one to already be active.
+func AddToQueue(guildID, query, requesterID string) (*TrackEntry, error) {
+	if manager == nil {
+		return nil, fmt.Errorf("music manager not initialized")
+	}
+	gp := getOrCreateGuildPlayer(guildID)
+
+	manager.mu.Lock()
+	alreadyActive := len(gp.Queue) > 0
+	manager.mu.Unlock()
+	if !alreadyActive {
+		return nil, fmt.Errorf("nothing is currently playing in this server")
+	}
+
+	loadedTracks, err := resolveTracks(NormalizeQuery(query))
+	if err != nil {
+		return nil, err
+	}
+
+	entries := make([]TrackEntry, len(loadedTracks))
+	for idx, t := range loadedTracks {
+		entries[idx] = TrackEntry{
+			Track:       t,
+			RequestedBy: "Dashboard",
+			RequesterID: requesterID,
+			QueueID:     uuid.New().String(),
+		}
+	}
+
+	manager.mu.Lock()
+	gp.Queue = append(gp.Queue, entries...)
+	manager.mu.Unlock()
+
+	syncState(guildID)
+
+	return &entries[0], nil
+}
+
 func onTrackEnd(player disgolink.Player, event lavalink.TrackEndEvent) {
 	if manager == nil {
 		return

schema.sql

@@ -170,7 +170,7 @@ CREATE TABLE IF NOT EXISTS music_queue (
 CREATE TABLE IF NOT EXISTS music_commands (
     id BIGSERIAL PRIMARY KEY,
     guild_id BIGINT NOT NULL,
-    command_type TEXT NOT NULL CHECK (command_type IN ('skip', 'pause', 'resume', 'set_volume', 'remove_track', 'reorder', 'repeat_song', 'repeat_queue')),
+    command_type TEXT NOT NULL CHECK (command_type IN ('skip', 'pause', 'resume', 'set_volume', 'remove_track', 'reorder', 'repeat_song', 'repeat_queue', 'add_song')),
     payload JSONB,
     requested_by BIGINT NOT NULL,
     created_at TIMESTAMPTZ DEFAULT NOW(),