make MaxEntries flag configurable (#147)

Author: dealloc

src/Helldivers-2-Sync/Configuration/HelldiversSyncConfiguration.cs

@@ -30,4 +30,9 @@ public sealed class HelldiversSyncConfiguration
     /// This is used in CI testing to validate sync works.
     /// </summary>
     public bool RunOnce { get; set; } = false;
+
+    /// <summary>
+    /// Get the maximum number of entries returned by ArrowHead from the newsfeed API.
+    /// </summary>
+    public uint NewsFeedMaxEntries { get; set; } = 2048;
 }

src/Helldivers-2-Sync/Services/ArrowHeadApiService.cs

@@ -73,7 +73,11 @@ public async Task<Memory<byte>> GetWarStatus(string season, string language, Can
     /// </summary>
     public async Task<Memory<byte>> LoadFeed(string season, string language, CancellationToken cancellationToken)
     {
-        var request = BuildRequest($"/api/NewsFeed/{season}", language);
+        // If the `NewsFeedMaxEntries` flag is not set to 0 we pass it in.
+        var request = options.Value.NewsFeedMaxEntries is 0
+            ? BuildRequest($"/api/NewsFeed/{season}", language)
+            : BuildRequest($"/api/NewsFeed/{season}?maxEntries=${options.Value.NewsFeedMaxEntries}", language);
+
         using var response = await http.SendAsync(request, cancellationToken);
 
         // Throw on error responses so we don't have to look down the entire serialisation tree.
@@ -102,7 +106,8 @@ public async Task<Memory<byte>> LoadAssignments(string season, string language,
     /// <summary>
     /// Loads space station of a given <paramref name="season" /> and <paramref name="id"/> in <paramref name="language" />.
     /// </summary>
-    public async Task<Memory<byte>> LoadSpaceStations(string season, long id, string language, CancellationToken cancellationToken)
+    public async Task<Memory<byte>> LoadSpaceStations(string season, long id, string language,
+        CancellationToken cancellationToken)
     {
         var request = BuildRequest($"/api/SpaceStation/{season}/{id}", language);
         using var response = await http.SendAsync(request, cancellationToken);