feat: add epg_entries support to image graphics elements (#2923)

CHANGELOG.md

@@ -11,6 +11,7 @@ The format is based on [Keep a Changelog](https://keepachangelog.com/en/1.0.0/).
     - A config file named `default.json` will apply to all channels using the Next engine
     - A config file named `{channel_number}.json` (e.g. `1.json`) will apply to the channel with that number
   - Channel overlays will override values from the default overlay which will override values from the FFmpeg Profile
+- Add `epg_entries` support to image graphics elements
 
 ### Fixed
 - Fix HLS Direct playback when JWT auth is also used

ErsatzTV.Core/Graphics/ImageGraphicsElement.cs

@@ -30,6 +30,9 @@ public class ImageGraphicsElement : BaseGraphicsElement
     [YamlMember(Alias = "z_index", ApplyNamingConventions = false)]
     public int? ZIndex { get; set; }
 
+    [YamlMember(Alias = "epg_entries", ApplyNamingConventions = false)]
+    public int EpgEntries { get; set; }
+
     public bool Scale { get; set; }
 
     [YamlMember(Alias = "scale_width_percent", ApplyNamingConventions = false)]

ErsatzTV.Core/Interfaces/Streaming/GraphicsEngineContext.cs

@@ -28,7 +28,10 @@ public record TextElementDataContext(TextGraphicsElement TextElement) : Graphics
     public int EpgEntries => TextElement.EpgEntries;
 }
 
-public record ImageElementContext(ImageGraphicsElement ImageElement) : GraphicsElementContext;
+public record ImageElementDataContext(ImageGraphicsElement ImageElement) : GraphicsElementContext, ITemplateDataContext
+{
+    public int EpgEntries => ImageElement.EpgEntries;
+}
 
 public record MotionElementDataContext(MotionGraphicsElement MotionElement)
     : GraphicsElementContext, ITemplateDataContext

ErsatzTV.Infrastructure/Streaming/Graphics/GraphicsElementLoader.cs

@@ -76,7 +76,10 @@ public partial class GraphicsElementLoader(
                                 reference.GraphicsElement.Path);
                         }
 
-                        context.Elements.AddRange(maybeElement.Select(element => new ImageElementContext(element)));
+                        foreach (ImageGraphicsElement element in maybeElement)
+                        {
+                            context.Elements.Add(new ImageElementDataContext(element));
+                        }
 
                         break;
                     }
@@ -203,19 +206,29 @@ public partial class GraphicsElementLoader(
 
         IEnumerable<PlayoutItemGraphicsElement> elementsWithEpg = elements.Where(e =>
             e.GraphicsElement.Kind is GraphicsElementKind.Text or GraphicsElementKind.Subtitle
-                or GraphicsElementKind.Motion or GraphicsElementKind.Script);
+                or GraphicsElementKind.Motion or GraphicsElementKind.Script or GraphicsElementKind.Image);
 
         foreach (var reference in elementsWithEpg)
         {
-            foreach (string line in await fileSystem.File.ReadAllLinesAsync(reference.GraphicsElement.Path))
+            try
             {
-                Match match = EpgEntriesRegex().Match(line);
-                if (!match.Success || !int.TryParse(match.Groups[1].Value, out int value))
+                foreach (string line in await fileSystem.File.ReadAllLinesAsync(reference.GraphicsElement.Path))
                 {
-                    continue;
-                }
+                    Match match = EpgEntriesRegex().Match(line);
+                    if (!match.Success || !int.TryParse(match.Groups[1].Value, out int value))
+                    {
+                        continue;
+                    }
 
-                epgEntries = Math.Max(epgEntries, value);
+                    epgEntries = Math.Max(epgEntries, value);
+                }
+            }
+            catch (Exception ex)
+            {
+                logger.LogWarning(
+                    ex,
+                    "Failed to read graphics element at {Path} for EPG entries",
+                    reference.GraphicsElement.Path);
             }
         }
 

ErsatzTV.Infrastructure/Streaming/Graphics/GraphicsEngine.cs

@@ -45,7 +45,7 @@ public class GraphicsEngine(
 
                     break;
 
-                case ImageElementContext imageElementContext:
+                case ImageElementDataContext imageElementContext:
                     elements.Add(new ImageElement(imageElementContext.ImageElement, logger));
                     break;