66 lines
2.7 KiB
C#
66 lines
2.7 KiB
C#
using JSMR.Application.Enums;
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using JSMR.Application.Scanning;
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using JSMR.Infrastructure.Common.Time;
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using JSMR.Worker.Options;
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using Microsoft.Extensions.DependencyInjection;
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using Microsoft.Extensions.Logging;
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using System.Globalization;
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namespace JSMR.Worker.Services;
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public sealed class PagedScanRunner(
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ILogger<PagedScanRunner> log,
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IServiceProvider serviceProvider,
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ICheckpointStore checkpoints)
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{
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public async Task RunAsync(ScanOptions options, CancellationToken cancellationToken)
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{
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if (Enum.TryParse(options.Locale, ignoreCase: true, out Locale locale) == false)
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throw new ArgumentException($"Unknown locale '{options.Locale}'.");
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int pageSize = options.PageSize ?? 100;
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int startPage = options.StartPage
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?? (await checkpoints.GetLastPageAsync(options.Locale, cancellationToken)).GetValueOrDefault(0) + 1;
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ITimeProvider timeProvider = serviceProvider.GetRequiredService<ITimeProvider>();
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log.LogInformation("Scanning on {ScanTime}...", timeProvider.Now().DateTime.ToString(CultureInfo.CurrentCulture));
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while (!cancellationToken.IsCancellationRequested)
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{
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int currentPage = startPage;
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int? end = options.EndPage;
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// Iterate until empty page or end reached
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for (; !cancellationToken.IsCancellationRequested && (!end.HasValue || currentPage <= end.Value); currentPage++)
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{
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using var scope = serviceProvider.CreateScope();
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ScanVoiceWorksHandler handler = scope.ServiceProvider.GetRequiredService<ScanVoiceWorksHandler>();
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log.LogInformation("Scanning page {Page} (size {Size}, locale {Locale})…", currentPage, pageSize, locale);
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ScanVoiceWorksRequest request = new(
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PageNumber: currentPage,
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PageSize: 100,
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Locale: locale
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);
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ScanVoiceWorksResponse response = await handler.HandleAsync(request, cancellationToken);
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// Save checkpoint
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await checkpoints.SaveLastPageAsync(options.Locale, currentPage, cancellationToken);
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}
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if (!options.Watch) break;
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log.LogInformation("Watch mode: sleeping {Interval}…", options.Interval);
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await Task.Delay(options.Interval, cancellationToken);
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// Compute next “start” for next cycle:
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// - If you want to re-scan the latest N pages every loop to catch late updates,
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// modify logic here (e.g., start = Math.Max(1, current - 2))
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startPage = currentPage; // continue from where we left off
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}
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}
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} |