Initial

LightlessSyncServer/LightlessSyncStaticFilesServer/Controllers/CacheController.cs

@@ -0,0 +1,53 @@
+using LightlessSync.API.Routes;
+using LightlessSyncStaticFilesServer.Services;
+using LightlessSyncStaticFilesServer.Utils;
+using Microsoft.AspNetCore.Mvc;
+
+namespace LightlessSyncStaticFilesServer.Controllers;
+
+[Route(LightlessFiles.Cache)]
+public class CacheController : ControllerBase
+{
+    private readonly RequestFileStreamResultFactory _requestFileStreamResultFactory;
+    private readonly CachedFileProvider _cachedFileProvider;
+    private readonly RequestQueueService _requestQueue;
+    private readonly FileStatisticsService _fileStatisticsService;
+
+    public CacheController(ILogger<CacheController> logger, RequestFileStreamResultFactory requestFileStreamResultFactory,
+        CachedFileProvider cachedFileProvider, RequestQueueService requestQueue, FileStatisticsService fileStatisticsService) : base(logger)
+    {
+        _requestFileStreamResultFactory = requestFileStreamResultFactory;
+        _cachedFileProvider = cachedFileProvider;
+        _requestQueue = requestQueue;
+        _fileStatisticsService = fileStatisticsService;
+    }
+
+    [HttpGet(LightlessFiles.Cache_Get)]
+    public async Task<IActionResult> GetFiles(Guid requestId)
+    {
+        _logger.LogDebug($"GetFile:{LightlessUser}:{requestId}");
+
+        if (!_requestQueue.IsActiveProcessing(requestId, LightlessUser, out var request)) return BadRequest();
+
+        _requestQueue.ActivateRequest(requestId);
+
+        Response.ContentType = "application/octet-stream";
+
+        long requestSize = 0;
+        List<BlockFileDataSubstream> substreams = new();
+
+        foreach (var fileHash in request.FileIds)
+        {
+            var fs = await _cachedFileProvider.DownloadAndGetLocalFileInfo(fileHash).ConfigureAwait(false);
+            if (fs == null) continue;
+
+            substreams.Add(new(fs));
+
+            requestSize += fs.Length;
+        }
+
+        _fileStatisticsService.LogRequest(requestSize);
+
+        return _requestFileStreamResultFactory.Create(requestId, new BlockFileDataStream(substreams));
+    }
+}