Added AudioFileScanner and AudioImageExtractor logic.

Harmonia.Core/Scanner/AudioFileScanner.cs

@@ -0,0 +1,57 @@
+using Harmonia.Core.Imaging;
+using Harmonia.Core.Models;
+using Harmonia.Core.Tags;
+
+namespace Harmonia.Core.Scanner;
+
+public class AudioFileScanner(ITagResolver tagResolver, IAudioImageExtractor audioImageExtractor) : IAudioFileScanner
+{
+    public Song[] GetSongs(string[] fileNames)
+    {
+        List<Song> songs = [];
+
+        foreach (string fileName in fileNames)
+        {
+            if (string.IsNullOrWhiteSpace(fileName) || File.Exists(fileName) == false)
+                continue;
+
+            Song? song = GetSong(fileName);
+
+            if (song == null)
+                continue;
+
+            songs.Add(song);
+        }
+
+        return [.. songs];
+    }
+
+    private Song GetSong(string fileName)
+    {
+        FileInfo fileInfo = new(fileName);
+        SongTagInfo songTagInfo = tagResolver.GetSongTagInfo(fileName);
+        using SongPictureInfo songPictureInfo = audioImageExtractor.ExtractImage(fileName, songTagInfo);
+
+        Song song = new()
+        {
+            FileName = fileName,
+            Size = (ulong)fileInfo.Length,
+            LastModified = fileInfo.LastWriteTime,
+            Title = songTagInfo.Title,
+            Album = songTagInfo.Album,
+            Artists = songTagInfo.Artists,
+            AlbumArtists = songTagInfo.AlbumArtists,
+            DiscNumber = songTagInfo.DiscNumber,
+            TrackNumber = songTagInfo.TrackNumber,
+            Length = songTagInfo.Length,
+            Year = songTagInfo.Year,
+            Genre = songTagInfo.Genre,
+            BitRate = songTagInfo.BitRate,
+            SampleRate = songTagInfo.SampleRate,
+            ImageName = songPictureInfo.ImageName,
+            ImageHash = songPictureInfo.ImageHash
+        };
+
+        return song;
+    }
+}

Harmonia.Core/Scanner/IAudioFileScanner.cs

@@ -0,0 +1,8 @@
+using Harmonia.Core.Models;
+
+namespace Harmonia.Core.Scanner;
+
+public interface IAudioFileScanner
+{
+    Song[] GetSongs(string[] fileNames);
+}