qwsdcvghyu89
7ed05abdb8
- Introduced modularity by splitting Beam into new projects: Beam.Abstractions, Beam.Models, and Beam.Downloaders. - Refactored existing classes into appropriate namespaces and projects. - Replaced specific implementations with abstractions (e.g., SourceLinkBuilder to LinkBuilder, State to IState, etc.). - Updated interfaces: added ITemplate, IArticleData, IDownloadReport, and others for improved extensibility. - Removed deprecated classes like SourceLinkBuilder and StateChangerFactory. - Enhanced link handling in downloaders by refactoring to use `string` over `SourceLink`. - Consolidated shared logic under Beam.Abstractions.
55 lines
2.4 KiB
C#
55 lines
2.4 KiB
C#
using Beam.Data;
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using Beam.Downloaders;
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using Beam.Dynamic;
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using Beam.Models;
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namespace Beam.Fluent {
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public static partial class DownloadBuilder<RawType, OutType> {
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/* ──────────────────────────── Stage types ─────────────────────────── */
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private sealed record LinkStage(
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WebResource Source,
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State Initial,
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BeamDataContext Data,
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DownloadContextBuilder<RawType> CtxBuilder) : ILinkStage, IAlternativeLinkStage {
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private State? endState;
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private bool linksFrozen = false;
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public ITransformStage WithLink() {
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var link = Data.Templates[Source.Key].Builder.Build(Initial);
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CtxBuilder.WithLinks([link]);
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return new TransformStage(Source, Data, CtxBuilder);
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}
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public ITransformStage WithLinkGenerator() {
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var template = Data.Templates[Source.Key];
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var generator = StringEnumerable.FromGenerator(new OrderedLinkGenerator(
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template.Builder,
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new NumberedStateChanger(template.Factory.Behavior),
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Initial, endState));
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CtxBuilder.WithLinks(generator);
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linksFrozen = true;
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return new TransformStage(Source, Data, CtxBuilder);
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}
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public IAlternativeTransformStage WithLinks(IEnumerable<string> links) {
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CtxBuilder.WithLinks(links);
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return new TransformStage(Source, Data, CtxBuilder);
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}
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public ILinkStage WithRange(Range range) {
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if (linksFrozen)
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throw new InvalidOperationException($"WithRange must be called before WithLinkGenerator");
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if (range.End.Value < range.Start.Value)
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throw new ArgumentOutOfRangeException(nameof(range), $" start must be < end");
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var template = Data.Templates[Source.Key];
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var stateChanger = new NumberedStateChanger(template.Factory.Behavior);
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endState = Initial.Copy();
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stateChanger.Apply(Initial, range.Start.Value - 1);
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stateChanger.Apply(endState, range.End.Value - 1);
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return this;
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}
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}
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}
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}
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