makes image upload work

PiwigoDirectorySync/Persistence/ImageEntity.cs

@@ -15,6 +15,9 @@ public class ImageEntity
 
     public required string FilePath { get; set; }
 
+    public string Name => Path.GetFileNameWithoutExtension(FilePath);
+    public string FileName => Path.GetFileName(FilePath);
+
     public DateTime LastChange { get; set; }
     public string? Md5Sum { get; set; }
 

PiwigoDirectorySync/Services/ImageSynchronizer.cs

@@ -1,11 +1,103 @@
-namespace PiwigoDirectorySync.Services;
+using Microsoft.EntityFrameworkCore;
+using Microsoft.Extensions.Logging;
+using Piwigo.Client;
+using Piwigo.Client.Images;
+using PiwigoDirectorySync.Infrastructure;
+using PiwigoDirectorySync.Persistence;
+
+namespace PiwigoDirectorySync.Services;
 
 public class ImageSynchronizer : IImageSynchronizer
 {
-    public Task SynchronizeImages(int piwigoServerId, CancellationToken ct)
+    private readonly ILogger<ImageSynchronizer> _logger;
+    private readonly PersistenceContext _persistenceContext;
+    private readonly IPiwigoClientFactory _piwigoClientFactory;
+
+    public ImageSynchronizer(ILogger<ImageSynchronizer> logger, IPiwigoClientFactory piwigoClientFactory, PersistenceContext persistenceContext)
     {
+        _logger = logger;
+        _piwigoClientFactory = piwigoClientFactory;
+        _persistenceContext = persistenceContext;
+    }
 
+    public async Task SynchronizeImages(int piwigoServerId, CancellationToken ct)
+    {
+        var piwigoServer = await _persistenceContext.PiwigoServers.FindAsync(new object?[] { piwigoServerId }, ct);
+        if (piwigoServer is null)
+        {
+            _logger.LogError("Could not sync images with piwigo server {PiwigoServerId}", piwigoServerId);
+            return;
+        }
 
-        throw new NotImplementedException();
+        _logger.LogInformation("Synchronizing images of piwigo server {PiwigoServerName} using base path {PiwigoServerRootDirectory}", piwigoServer.Name,
+            piwigoServer.RootDirectory);
+
+        var piwigoClient = await _piwigoClientFactory.GetPiwigoClientAsync(piwigoServer, ct);
+
+        await GetImageIdsFromServerAsync(piwigoClient, piwigoServer, ct);
+        await UploadNewImagesToServerAsync(piwigoClient, piwigoServer, ct);
+    }
+
+    private async Task UploadNewImagesToServerAsync(IPiwigoClient piwigoClient, ServerEntity piwigoServer, CancellationToken ct)
+    {
+        var imagesToUpload = await _persistenceContext.PiwigoImages.Include(i => i.Album)
+            .Where(i => i.ServerImageId == null && i.Album.ServerId == piwigoServer.Id)
+            .ToListAsync(ct);
+
+        foreach (var imageEntity in imagesToUpload)
+        {
+            var fileInfo = new FileInfo(Path.Combine(piwigoServer.RootDirectory, imageEntity.FilePath));
+            var imageUpload = GetImageUpload(imageEntity, fileInfo.CreationTime);
+            var imageUploaded = await piwigoClient.UploadImageAsync(fileInfo, imageUpload, ct);
+
+            imageEntity.ServerImageId = imageUploaded.ImageId;
+            imageEntity.UploadRequired = false;
+
+            _logger.LogInformation("Uploaded image {ImageEntityName} ({ImageEntityId}) to piwigo server with id {ImageEntityServerImageId}", imageEntity.Name, imageEntity.Id,
+                imageEntity.ServerImageId);
+
+            await _persistenceContext.SaveChangesAsync(ct);
+        }
+    }
+
+    private static ImageUpload GetImageUpload(ImageEntity imageEntity, DateTime createdAt)
+    {
+        var albums = new List<(int AlbumId, int? Rank)> { (AlbumId: imageEntity.Album.ServerAlbumId!.Value, Rank: null) };
+        return new ImageUpload(imageEntity.Md5Sum!)
+        {
+            Name = imageEntity.Name,
+            FileName = imageEntity.FileName,
+            OriginalSum = imageEntity.Md5Sum!,
+            Albums = albums,
+            CreatedAt = createdAt
+        };
+    }
+
+    private async Task GetImageIdsFromServerAsync(IPiwigoClient piwigoClient, ServerEntity piwigoServer, CancellationToken ct)
+    {
+        var imagesToSearch = await _persistenceContext.PiwigoImages.Include(i => i.Album)
+            .Where(i => i.ServerImageId == null && i.Album.ServerId == piwigoServer.Id)
+            .ToListAsync(ct);
+
+        var md5SumsToCheck = imagesToSearch.Where(i => i.Md5Sum != null).DistinctBy(i => i.Md5Sum).ToDictionary(i => i.Md5Sum!, i => i, StringComparer.OrdinalIgnoreCase);
+
+        var processedImages = 0;
+        while (processedImages < md5SumsToCheck.Keys.Count)
+        {
+            var chunkKeys = md5SumsToCheck.Keys.Skip(processedImages).Take(100).ToArray();
+            var existingImages = await piwigoClient.Image.ExistsByMd5SumsAsync(chunkKeys, ct);
+
+            foreach (var existingImage in existingImages.Where(i => i.Value.HasValue))
+            {
+                var imageEntity = md5SumsToCheck[existingImage.Key];
+                imageEntity.ServerImageId = existingImage.Value;
+                _logger.LogInformation("Found image {ImageEntityName} ({ImageEntityId}) on piwigo server with id {ImageEntityServerImageId}", imageEntity.Name, imageEntity.Id,
+                    imageEntity.ServerImageId);
+            }
+
+            await _persistenceContext.SaveChangesAsync(ct);
+
+            processedImages += chunkKeys.Length;
+        }
     }
 }

PiwigoDirectorySync/appsettings.json

@@ -3,7 +3,8 @@
     "LogLevel": {
       "Default": "Debug",
       "System": "Warning",
-      "Microsoft": "Warning"
+      "Microsoft": "Warning",
+      "Piwigo.Client": "Warning"
     }
   },
   "ConnectionStrings": {