file scanner

AZKi Server/Services/FileScannerService.cs

@@ -1,16 +1,55 @@
 
+using AZKiServer.Models;
+
 namespace AZKiServer.Services;
 
-public class FileScannerService : IHostedService
+public class FileScannerService(MediaService mediaService, IConfiguration config, ILogger<FileScannerService> logger) : IHostedService, IDisposable
 {
+	private Timer? _timer;
+
+	public void Dispose()
+	{
+		_timer?.Dispose();
+	}
+
 	public Task StartAsync(CancellationToken cancellationToken)
 	{
-		throw new NotImplementedException();
+		var path = config["SCAN_PATH"];
+		if (string.IsNullOrWhiteSpace(path))
+			return Task.CompletedTask;
+		_timer = new Timer((_) =>
+		{
+			ScanFilesAsync(path).Wait();
+		}, null, TimeSpan.FromMinutes(1), TimeSpan.FromHours(1));
+		return Task.CompletedTask;
 	}
 
 	public Task StopAsync(CancellationToken cancellationToken)
 	{
-		throw new NotImplementedException();
+		_timer?.Dispose();
+		return Task.CompletedTask;
 	}
 
+
+	private async Task ScanFilesAsync(string path)
+	{
+		try
+		{
+			var files = Directory.GetFiles(path, "*", SearchOption.AllDirectories);
+			var existingFiles = await mediaService.GetExistingFilePathsAsync();
+			var entries = new List<MediaEntry>();
+			foreach (var filePath in files)
+			{
+				var relativePath = Path.GetRelativePath(path, filePath);
+				if (existingFiles.Contains(relativePath))
+					continue;
+				entries.Add(MediaEntry.Parse(relativePath));
+			}
+			await mediaService.AddMediaBulkAsync(entries);
+		}
+		catch (Exception ex)
+		{
+			logger.LogError(ex, "Failed to read directory contents");
+		}
+	}
 }

AZKi Server/Services/MediaService.cs

@@ -1,6 +1,30 @@
-namespace AZKiServer.Services;
+using AZKiServer.Models;
 
-public class MediaService
+using MongoDB.Driver;
+
+using System.Collections.Frozen;
+
+namespace AZKiServer.Services;
+
+public class MediaService(IMongoDatabase db)
 {
+	public readonly IMongoCollection<MediaEntry> _entries = db.GetCollection<MediaEntry>("media");
+	public async Task<FrozenSet<string>> GetExistingFilePathsAsync(CancellationToken cancellationToken = default)
+	{
+		var files = await _entries.Find("{}").Project(m => m.Filepath).ToListAsync(cancellationToken);
+		return files.ToFrozenSet();
+	}
 
+	public async Task AddMediaBulkAsync(List<MediaEntry> entries, CancellationToken cancellationToken = default)
+	{
+		await _entries.InsertManyAsync(entries, cancellationToken: cancellationToken);
+	}
+
+	public class IndexCreation : BackgroundService
+	{
+		protected override Task ExecuteAsync(CancellationToken stoppingToken)
+		{
+			throw new NotImplementedException();
+		}
+	}
 }