mirror of
https://github.com/alexhopeoconnor/bom-local-service.git
synced 2026-10-04 03:28:11 +10:00
alex
12dd0eedad
Major architectural changes: - Replace monolithic ScrapingService with workflow-based system - Extract scraping logic into discrete, testable steps - Add configuration-driven selectors, JavaScript templates, and text patterns - Implement step registry and workflow factory for extensibility - Add PageState tracking and step dependencies - Make IWorkflow generic to support different response types New components: - Scraping steps organized by category (Navigation, Search, Map, Metadata, Capture) - BaseScrapingStep base class with common dependencies - ScrapingContext for shared state between steps - RadarScrapingWorkflow orchestrating step execution - SelectorService for configurable element selection - Configuration models (SelectorConfig, TextPatternsConfig, JavaScriptTemplatesConfig) Performance and monitoring: - Add step-level timing metrics with historical tracking - Log step durations and compare to averages - Warn on slow steps/workflows (50%+ slower than average) - Integrate metrics with CacheService Configuration improvements: - Externalize all selectors to appsettings.json - Externalize JavaScript templates to appsettings.json - Externalize text patterns to appsettings.json - Support Docker configuration via mounted appsettings.json - Remove hardcoded waits, use configurable timeouts Bug fixes: - Fix DebugService collection modification exception - Fix ResetToFirstFrameStep click interception with JavaScript fallback - Remove minutes ago fallback, use timestamp parsing only - Update timestamp parsing for new BOM website format Documentation: - Update README with new architecture details - Add configuration section with Docker guidance - Add development guidelines for extending scraping system - Add performance monitoring documentation
69 lines
2.5 KiB
C#
69 lines
2.5 KiB
C#
using BomLocalService.Services.Interfaces;
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using BomLocalService.Services.Scraping;
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namespace BomLocalService.Services.Scraping.Steps.Metadata;
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public class ExtractMetadataStep : BaseScrapingStep
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{
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private readonly ITimeParsingService _timeParsingService;
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public override string Name => "ExtractMetadata";
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public override string[] Prerequisites => new[] { "ResetToFirstFrame" };
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public ExtractMetadataStep(
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ILogger<ExtractMetadataStep> logger,
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ISelectorService selectorService,
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IDebugService debugService,
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IConfiguration configuration,
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ITimeParsingService timeParsingService)
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: base(logger, selectorService, debugService, configuration)
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{
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_timeParsingService = timeParsingService;
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}
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public override bool CanExecute(ScrapingContext context)
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{
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return context.IsMapReady;
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}
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public override async Task<ScrapingStepResult> ExecuteAsync(ScrapingContext context, CancellationToken cancellationToken)
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{
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try
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{
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Logger.LogInformation("Step {Step}: Extracting metadata and frame information", Name);
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var lastUpdatedInfo = await _timeParsingService.ExtractLastUpdatedInfoAsync(context.Page);
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context.LastUpdatedInfo = lastUpdatedInfo;
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// Extract frame info
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try
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{
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var frameInfo = await context.Page.EvaluateAsync<object[]>(JavaScriptTemplates.ExtractFrameInfo);
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var result = new List<(int index, int minutesAgo)>();
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for (int i = 0; i < 7; i++)
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{
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var minutesAgo = 40 - (i * 5);
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result.Add((i, minutesAgo));
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}
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context.FrameInfo = result;
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}
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catch (Exception ex)
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{
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Logger.LogWarning(ex, "Step {Step}: Failed to extract frame info, using defaults", Name);
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context.FrameInfo = Enumerable.Range(0, 7)
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.Select(i => (i, 40 - (i * 5)))
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.ToList();
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}
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return ScrapingStepResult.Successful();
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}
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catch (Exception ex)
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{
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Logger.LogError(ex, "Step {Step} failed", Name);
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await SaveErrorDebugAsync(context, $"Failed to extract metadata: {ex.Message}", cancellationToken);
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return ScrapingStepResult.Failed($"Failed to extract metadata: {ex.Message}");
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}
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}
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}
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