87 lines
3.4 KiB
C#
87 lines
3.4 KiB
C#
using Extrudex.Domain.Interfaces;
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using Extrudex.Infrastructure.Configuration;
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using Microsoft.Extensions.DependencyInjection;
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using Microsoft.Extensions.Hosting;
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using Microsoft.Extensions.Logging;
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using Microsoft.Extensions.Options;
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namespace Extrudex.API.Jobs;
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/// <summary>
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/// Background job that periodically syncs filament usage data from
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/// Moonraker printers. Runs as a hosted service and polls all active
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/// Moonraker printers on a configurable interval to persist usage
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/// data to the Extrudex database.
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///
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/// Configuration is bound from the "FilamentUsageSync" section in
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/// appsettings.json. Set Enabled=false to disable without removing
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/// the service registration.
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///
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/// Uses an IServiceScopeFactory to resolve scoped dependencies
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/// (IFilamentUsageSyncService, IUsageLogService) on each sync cycle,
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/// avoiding captive-dependency issues from injecting scoped services
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/// into the singleton BackgroundService lifetime.
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/// </summary>
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public class FilamentUsageSyncJob : BackgroundService
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{
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private readonly IServiceScopeFactory _scopeFactory;
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private readonly FilamentUsageSyncOptions _options;
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private readonly ILogger<FilamentUsageSyncJob> _logger;
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/// <summary>
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/// Creates a new FilamentUsageSyncJob.
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/// </summary>
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/// <param name="scopeFactory">Factory for creating DI scopes to resolve scoped services.</param>
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/// <param name="options">Configuration options for polling interval and timeouts.</param>
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/// <param name="logger">Logger for diagnostic output.</param>
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public FilamentUsageSyncJob(
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IServiceScopeFactory scopeFactory,
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IOptions<FilamentUsageSyncOptions> options,
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ILogger<FilamentUsageSyncJob> logger)
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{
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_scopeFactory = scopeFactory;
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_options = options.Value;
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_logger = logger;
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}
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/// <inheritdoc />
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protected override async Task ExecuteAsync(CancellationToken stoppingToken)
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{
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if (!_options.Enabled)
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{
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_logger.LogInformation("Filament usage sync job is disabled via configuration — exiting");
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return;
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}
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_logger.LogInformation(
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"Filament usage sync job starting — polling every {Interval}",
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_options.PollingInterval);
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// Delay briefly on startup to allow the web host to fully initialize
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await Task.Delay(TimeSpan.FromSeconds(10), stoppingToken);
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while (!stoppingToken.IsCancellationRequested)
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{
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try
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{
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using var scope = _scopeFactory.CreateScope();
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var syncService = scope.ServiceProvider.GetRequiredService<IFilamentUsageSyncService>();
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var syncedCount = await syncService.SyncAllAsync(stoppingToken);
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_logger.LogInformation(
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"Filament usage sync completed — {SyncedCount} printer(s) synced. Next sync in {Interval}",
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syncedCount, _options.PollingInterval);
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}
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catch (Exception ex) when (ex is not OperationCanceledException)
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{
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_logger.LogError(ex,
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"Error during filament usage sync cycle — will retry in {Interval}",
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_options.PollingInterval);
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}
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await Task.Delay(_options.PollingInterval, stoppingToken);
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}
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_logger.LogInformation("Filament usage sync job shutting down");
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}
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} |