NadekoBot Patronage system, Search commands improvements + fixes

src/NadekoBot/Modules/Searches/Search/Youtube/YoutubeDataApiSearchService.cs

@@ -0,0 +1,26 @@
+namespace NadekoBot.Modules.Searches.Youtube;
+
+public sealed class YoutubeDataApiSearchService : IYoutubeSearchService, INService
+{
+    private readonly IGoogleApiService _gapi;
+
+    public YoutubeDataApiSearchService(IGoogleApiService gapi)
+    {
+        _gapi = gapi;
+    }
+
+    public async Task<VideoInfo?> SearchAsync(string query)
+    {
+        ArgumentNullException.ThrowIfNull(query);
+
+        var results = await _gapi.GetVideoLinksByKeywordAsync(query);
+        var first = results.FirstOrDefault();
+        if (first is null)
+            return null;
+
+        return new()
+        {
+            Url = first
+        };
+    }
+}