Refactor fluent download pipelines

2025-09-27 15:38:58 +10:00
parent 13c6fbaf5f
commit 94b6c0645c
33 changed files with 518 additions and 451 deletions
@@ -0,0 +1,28 @@
+using aeqw89.DataKeys;
+using Beam.Data;
+using Beam.Downloaders;
+using Beam.Dynamic;
+using Beam.Models;
+
+namespace Beam.Fluent;
+
+public static class FluentDownload {
+    public static ITransformStage<RawType, OutType> Links<RawType, OutType>(params IEnumerable<string> links) {
+        return new TransformStage<RawType, OutType>(new DownloadContextBuilder<RawType>()
+            .WithLinks(links));
+    }
+
+    public static ITransformStage<RawType, OutType>
+        ResourceDefinition<RawType, OutType>(ResourceDefinition definition) {
+        if (definition.Location.States.Count == 0)
+            throw new ArgumentException(Exceptions.Exceptions.resource_definition_invalid_states_count, nameof(definition));
+        var linkGenerator = new OrderedLinkGenerator(definition.Location.Segments, (NumberedStateChanger)definition.Location.StateChanger.Behavior,
+            definition.Location.States.First().Copy());
+        return new TransformStage<RawType, OutType>(new DownloadContextBuilder<RawType>()
+            .WithLinks(StringEnumerable.FromGenerator(linkGenerator!)));
+    }
+    
+    public static ITransformStage<RawType, OutType> FromContext<RawType, OutType>(DownloadContext<RawType> existing) {
+        return new TransformStage<RawType, OutType>(DownloadContextBuilder<RawType>.FromContext(existing));
+    }
+}