Workshop - Added plugin upload support

src/Artemis.WebClient.Workshop/Handlers/UploadHandlers/EntryUploadHandlerFactory.cs

@@ -15,6 +15,7 @@ public class EntryUploadHandlerFactory
     {
         return entryType switch
         {
+            EntryType.Plugin => _container.Resolve<PluginEntryUploadHandler>(),
             EntryType.Profile => _container.Resolve<ProfileEntryUploadHandler>(),
             EntryType.Layout => _container.Resolve<LayoutEntryUploadHandler>(),
             _ => throw new NotSupportedException($"EntryType '{entryType}' is not supported.")

src/Artemis.WebClient.Workshop/Handlers/UploadHandlers/Implementations/PluginEntrySource.cs

@@ -0,0 +1,15 @@
+using Artemis.Core;
+
+namespace Artemis.WebClient.Workshop.Handlers.UploadHandlers;
+
+public class PluginEntrySource : IEntrySource
+{
+    public PluginEntrySource(PluginInfo pluginInfo, string path)
+    {
+        PluginInfo = pluginInfo;
+        Path = path;
+    }
+
+    public PluginInfo PluginInfo { get; set; }
+    public string Path { get; set; }
+}

src/Artemis.WebClient.Workshop/Handlers/UploadHandlers/Implementations/PluginEntryUploadHandler.cs

@@ -0,0 +1,40 @@
+using System.Net.Http.Headers;
+using Artemis.WebClient.Workshop.Entities;
+using Newtonsoft.Json;
+
+namespace Artemis.WebClient.Workshop.Handlers.UploadHandlers;
+
+public class PluginEntryUploadHandler : IEntryUploadHandler
+{
+    private readonly IHttpClientFactory _httpClientFactory;
+
+    public PluginEntryUploadHandler(IHttpClientFactory httpClientFactory)
+    {
+        _httpClientFactory = httpClientFactory;
+    }
+
+    /// <inheritdoc />
+    public async Task<EntryUploadResult> CreateReleaseAsync(long entryId, IEntrySource entrySource, CancellationToken cancellationToken)
+    {
+        if (entrySource is not PluginEntrySource source)
+            throw new InvalidOperationException("Can only create releases for plugins");
+      
+        // Submit the archive
+        HttpClient client = _httpClientFactory.CreateClient(WorkshopConstants.WORKSHOP_CLIENT_NAME);
+
+        // Construct the request
+        await using FileStream fileStream = File.Open(source.Path, FileMode.Open);
+        MultipartFormDataContent content = new();
+        StreamContent streamContent = new(fileStream);
+        streamContent.Headers.ContentType = new MediaTypeHeaderValue("application/zip");
+        content.Add(streamContent, "file", "file.zip");
+
+        // Submit
+        HttpResponseMessage response = await client.PostAsync("releases/upload/" + entryId, content, cancellationToken);
+        if (!response.IsSuccessStatusCode)
+            return EntryUploadResult.FromFailure($"{response.StatusCode} - {await response.Content.ReadAsStringAsync(cancellationToken)}");
+
+        Release? release = JsonConvert.DeserializeObject<Release>(await response.Content.ReadAsStringAsync(cancellationToken));
+        return release != null ? EntryUploadResult.FromSuccess(release) : EntryUploadResult.FromFailure("Failed to deserialize response");
+    }
+}