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Extrudex/backend/Domain/Interfaces/IFilamentUsageSyncService.cs

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namespace Extrudex.Domain.Interfaces;
/// <summary>
/// Service interface for syncing filament usage data from printers
/// into the Extrudex database. Handles querying Moonraker printers,
/// computing derived usage metrics, and persisting updates to spools
/// and print job records.
/// </summary>
public interface IFilamentUsageSyncService
{
/// <summary>
/// Performs a single sync cycle: queries all active Moonraker printers,
/// fetches their current filament usage data, and persists updates to
/// the database.
/// </summary>
/// <param name="cancellationToken">Cancellation token for graceful shutdown.</param>
/// <returns>The number of printers successfully synced.</returns>
Task<int> SyncAllAsync(CancellationToken cancellationToken = default);
}