refactor to unify data fetching and define abstract API for re-use

Jellyfin.Plugin.SRFPlay/Channels/SRFPlayChannel.cs

@@ -6,7 +6,7 @@ using System.Security.Cryptography;
 using System.Text;
 using System.Threading;
 using System.Threading.Tasks;
-using Jellyfin.Plugin.SRFPlay.Services;
+using Jellyfin.Plugin.SRFPlay.Services.Interfaces;
 using MediaBrowser.Controller;
 using MediaBrowser.Controller.Channels;
 using MediaBrowser.Controller.Providers;
@@ -24,10 +24,10 @@ public class SRFPlayChannel : IChannel, IHasCacheKey
 {
     private readonly ILogger<SRFPlayChannel> _logger;
     private readonly ILoggerFactory _loggerFactory;
-    private readonly ContentRefreshService _contentRefreshService;
-    private readonly StreamUrlResolver _streamResolver;
-    private readonly StreamProxyService _proxyService;
-    private readonly CategoryService? _categoryService;
+    private readonly IContentRefreshService _contentRefreshService;
+    private readonly IStreamUrlResolver _streamResolver;
+    private readonly IStreamProxyService _proxyService;
+    private readonly ICategoryService? _categoryService;
     private readonly IServerApplicationHost _appHost;
 
     /// <summary>
@@ -41,11 +41,11 @@ public class SRFPlayChannel : IChannel, IHasCacheKey
     /// <param name="categoryService">The category service (optional).</param>
     public SRFPlayChannel(
         ILoggerFactory loggerFactory,
-        ContentRefreshService contentRefreshService,
-        StreamUrlResolver streamResolver,
-        StreamProxyService proxyService,
+        IContentRefreshService contentRefreshService,
+        IStreamUrlResolver streamResolver,
+        IStreamProxyService proxyService,
         IServerApplicationHost appHost,
-        CategoryService? categoryService = null)
+        ICategoryService? categoryService = null)
     {
         _loggerFactory = loggerFactory;
         _logger = loggerFactory.CreateLogger<SRFPlayChannel>();