feat: SongSelect panel — NAS song list with download/play in Menu.unity

- Add DownloadManager, SongLibrary, SongSelectManager, SongDetailPanel scripts - Rebuild SongSelect panel inside Menu.unity using VRBeatsKit style: left scroll list (ALL/OWNED tabs) + right detail panel (diff buttons, Download/Delete/Play) - SceneBuilder replaced: only ③ Menu — Rebuild SongSelect Panel remains - All UI text in English Co-Authored-By: Claude Sonnet 4.6 <noreply@anthropic.com>
2026-05-22 01:22:16 +09:00
parent 4dad9e5d5b
commit 58c88dafff
11 changed files with 5857 additions and 559 deletions
@@ -0,0 +1,160 @@
+using System;
+using System.Collections;
+using System.IO;
+using UnityEngine;
+using UnityEngine.Networking;
+
+public class DownloadManager : MonoBehaviour
+{
+    [SerializeField] private string baseUrl = "http://whdwo798.synology.me/beatsaber";
+
+    private static string CacheRoot => Path.Combine(Application.temporaryCachePath, "beatsaber");
+
+    // ── Public API ───────────────────────────────────────────
+
+    public void FetchSongsList(Action<SongsList> onSuccess, Action<string> onError = null)
+    {
+        StartCoroutine(GetText($"{baseUrl}/songs.json", json =>
+        {
+            SongsList list = JsonUtility.FromJson<SongsList>(json);
+            if (list == null)
+                onError?.Invoke("songs.json 파싱 실패");
+            else
+                onSuccess?.Invoke(list);
+        }, onError));
+    }
+
+    public void DownloadSong(SongInfo song, string difficulty,
+        Action<float> onProgress, Action onComplete, Action<string> onError = null)
+    {
+        StartCoroutine(DownloadSongCoroutine(song, difficulty, onProgress, onComplete, onError));
+    }
+
+    public void DeleteSong(string songId)
+    {
+        string dir = SongDir(songId);
+        if (Directory.Exists(dir))
+        {
+            Directory.Delete(dir, recursive: true);
+            Debug.Log($"[DownloadManager] 삭제: {songId}");
+        }
+    }
+
+    public void DeleteDifficulty(SongInfo song, string difficulty)
+    {
+        string path = MapPath(song, difficulty);
+        if (path != null && File.Exists(path))
+            File.Delete(path);
+    }
+
+    public bool IsSongDownloaded(string songId)
+        => File.Exists(AudioPath(songId));
+
+    public bool IsDifficultyDownloaded(SongInfo song, string difficulty)
+    {
+        string path = MapPath(song, difficulty);
+        return path != null && File.Exists(path);
+    }
+
+    public string AudioPath(string songId)
+        => Path.Combine(SongDir(songId), $"{songId}.mp3");
+
+    public string MapPath(SongInfo song, string difficulty)
+    {
+        DifficultyInfo info = song.difficulties.Get(difficulty);
+        if (info == null || string.IsNullOrEmpty(info.mapFile)) return null;
+        string fileName = Path.GetFileName(info.mapFile);
+        if (string.IsNullOrEmpty(fileName)) return null;
+        return Path.Combine(SongDir(song.id), fileName);
+    }
+
+    // ── 내부 구현 ─────────────────────────────────────────────
+
+    private IEnumerator DownloadSongCoroutine(SongInfo song, string difficulty,
+        Action<float> onProgress, Action onComplete, Action<string> onError)
+    {
+        string songDir = Path.GetFullPath(SongDir(song.id));
+        Directory.CreateDirectory(songDir);
+
+        // 1단계: 오디오 (70%)
+        string audioPath = Path.Combine(songDir, $"{song.id}.mp3");
+        if (!File.Exists(audioPath))
+        {
+            bool failed = false;
+            yield return DownloadFile(
+                $"{baseUrl}/{song.audioFile}", audioPath,
+                p => onProgress?.Invoke(p * 0.7f),
+                err => { onError?.Invoke(err); failed = true; });
+            if (failed) yield break;
+        }
+
+        // 2단계: 맵 파일 (30%)
+        DifficultyInfo diffInfo = song.difficulties.Get(difficulty);
+        if (diffInfo == null)
+        {
+            onError?.Invoke($"난이도 '{difficulty}' 없음");
+            yield break;
+        }
+
+        if (string.IsNullOrEmpty(diffInfo.mapFile))
+        {
+            onError?.Invoke($"'{difficulty}' 맵 파일 정보 없음 — Creator에서 곡을 다시 생성해주세요");
+            yield break;
+        }
+
+        string mapPath = MapPath(song, difficulty);
+        if (mapPath != null) mapPath = Path.GetFullPath(mapPath);
+        if (mapPath == null)
+        {
+            onError?.Invoke($"'{difficulty}' 맵 경로 계산 실패");
+            yield break;
+        }
+        if (!File.Exists(mapPath))
+        {
+            bool failed = false;
+            yield return DownloadFile(
+                $"{baseUrl}/{diffInfo.mapFile}", mapPath,
+                p => onProgress?.Invoke(0.7f + p * 0.3f),
+                err => { onError?.Invoke(err); failed = true; });
+            if (failed) yield break;
+        }
+
+        onProgress?.Invoke(1f);
+        onComplete?.Invoke();
+        Debug.Log($"[DownloadManager] 완료: {song.title} ({difficulty})");
+    }
+
+    private IEnumerator DownloadFile(string url, string savePath,
+        Action<float> onProgress, Action<string> onError)
+    {
+        using var req = UnityWebRequest.Get(url);
+        req.downloadHandler = new DownloadHandlerFile(savePath);
+        req.SendWebRequest();
+
+        while (!req.isDone)
+        {
+            onProgress?.Invoke(req.downloadProgress);
+            yield return null;
+        }
+
+        if (req.result != UnityWebRequest.Result.Success)
+        {
+            if (File.Exists(savePath)) File.Delete(savePath);
+            onError?.Invoke($"다운로드 실패: {url} — {req.error}");
+        }
+    }
+
+    private IEnumerator GetText(string url, Action<string> onSuccess, Action<string> onError)
+    {
+        using var req = UnityWebRequest.Get(url);
+        yield return req.SendWebRequest();
+
+        if (req.result != UnityWebRequest.Result.Success)
+            onError?.Invoke($"요청 실패: {url} — {req.error}");
+        else
+            onSuccess?.Invoke(req.downloadHandler.text);
+    }
+
+    private static string SongDir(string songId)
+        => Path.Combine(CacheRoot, songId);
+}