Re enabling the metadata provider loader task

Kyoo.Common/Models/MetadataID.cs

@@ -20,6 +20,12 @@ namespace Kyoo.Models
 		/// </summary>
 		public string Link { get; set; }
 
+		/// <summary>
+		/// A shortcut to access the provider of this metadata.
+		/// Unlike the <see cref="Link{T, T2}.Second"/> property, this is serializable.
+		/// </summary>
+		public Provider Provider => Second;
+		
 		/// <summary>
 		/// The expression to retrieve the unique ID of a MetadataID. This is an aggregate of the two resources IDs.
 		/// </summary>

Kyoo.WebApp

@@ -1 +1 @@
-Subproject commit dcdebad14cbcdf1f9486cb9178e6518d10c0e97f
+Subproject commit 87783a5bfdd79f21d72bad13da1d96ec8e08cd42

Kyoo/CoreModule.cs

@@ -115,6 +115,7 @@ namespace Kyoo
 			builder.RegisterTask<Housekeeping>();
 			builder.RegisterTask<RegisterEpisode>();
 			builder.RegisterTask<RegisterSubtitle>();
+			builder.RegisterTask<MetadataProviderLoader>();
 
 			static bool DatabaseIsPresent(IComponentRegistryBuilder x)
 				=> x.IsRegistered(new TypedService(typeof(DatabaseContext)));

Kyoo/Tasks/MetadataProviderLoader.cs

@@ -1,46 +1,75 @@
-// using System;
-// using System.Collections.Generic;
-// using System.Threading;
-// using System.Threading.Tasks;
-// using Kyoo.Controllers;
-// using Kyoo.Models;
-// using Microsoft.Extensions.DependencyInjection;
-//
-// namespace Kyoo.Tasks
-// {
-// 	public class MetadataProviderLoader : ITask
-// 	{
-// 		public string Slug => "reload-metdata";
-// 		public string Name => "Reload Metadata Providers";
-// 		public string Description => "Add every loaded metadata provider to the database.";
-// 		public string HelpMessage => null;
-// 		public bool RunOnStartup => true;
-// 		public int Priority => 1000;
-// 		
-// 		public async Task Run(IServiceProvider serviceProvider, CancellationToken cancellationToken, string arguments = null)
-// 		{
-// 			using IServiceScope serviceScope = serviceProvider.CreateScope();
-// 			IProviderRepository providers = serviceScope.ServiceProvider.GetService<IProviderRepository>();
-// 			IThumbnailsManager thumbnails = serviceScope.ServiceProvider.GetService<IThumbnailsManager>();
-// 			IPluginManager pluginManager = serviceScope.ServiceProvider.GetService<IPluginManager>();
-// 			
-// 			foreach (IMetadataProvider provider in pluginManager!.GetPlugins<IMetadataProvider>())
-// 			{
-// 				if (string.IsNullOrEmpty(provider.Provider.Slug))
-// 					throw new ArgumentException($"Empty provider slug (name: {provider.Provider.Name}).");
-// 				await providers!.CreateIfNotExists(provider.Provider);
-// 				await thumbnails!.Validate(provider.Provider);
-// 			}
-// 		}
-//
-// 		public Task<IEnumerable<string>> GetPossibleParameters()
-// 		{
-// 			return Task.FromResult<IEnumerable<string>>(null);
-// 		}
-//
-// 		public int? Progress()
-// 		{
-// 			return null;
-// 		}
-// 	}
-// }
+using System;
+using System.Collections.Generic;
+using System.Threading;
+using System.Threading.Tasks;
+using Kyoo.Controllers;
+using Kyoo.Models.Attributes;
+using Kyoo.Models.Exceptions;
+
+namespace Kyoo.Tasks
+{
+	/// <summary>
+	/// A task that download metadata providers images.
+	/// </summary>
+	public class MetadataProviderLoader : ITask
+	{
+		/// <inheritdoc />
+		public string Slug => "reload-metdata";
+		
+		/// <inheritdoc />
+		public string Name => "Reload Metadata Providers";
+		
+		/// <inheritdoc />
+		public string Description => "Add every loaded metadata provider to the database.";
+		
+		/// <inheritdoc />
+		public string HelpMessage => null;
+		
+		/// <inheritdoc />
+		public bool RunOnStartup => true;
+		
+		/// <inheritdoc />
+		public int Priority => 1000;
+
+		/// <inheritdoc />
+		public bool IsHidden => true;
+		
+		/// <summary>
+		/// The provider repository used to create in-db providers from metadata providers. 
+		/// </summary>
+		[Injected] public IProviderRepository Providers { private get; set; }
+		/// <summary>
+		/// The thumbnail manager used to download providers logo.
+		/// </summary>
+		[Injected] public IThumbnailsManager Thumbnails { private get; set; }
+		/// <summary>
+		/// The list of metadata providers to register.
+		/// </summary>
+		[Injected] public ICollection<IMetadataProvider> MetadataProviders { private get; set; }
+		
+		
+		/// <inheritdoc />
+		public TaskParameters GetParameters()
+		{
+			return new();
+		}
+
+		/// <inheritdoc />
+		public async Task Run(TaskParameters arguments, IProgress<float> progress, CancellationToken cancellationToken)
+		{
+			float percent = 0;
+			progress.Report(0);
+			
+			foreach (IMetadataProvider provider in MetadataProviders)
+			{
+				if (string.IsNullOrEmpty(provider.Provider.Slug))
+					throw new TaskFailedException($"Empty provider slug (name: {provider.Provider.Name}).");
+				await Providers.CreateIfNotExists(provider.Provider);
+				await Thumbnails.DownloadImages(provider.Provider);
+				percent += 100f / MetadataProviders.Count;
+				progress.Report(percent);
+			}
+			progress.Report(100);
+		}
+	}
+}