using EnvelopeGenerator.ServiceHost.Jobs;
using Microsoft.Extensions.Options;

namespace EnvelopeGenerator.ServiceHost;

public class Worker : BackgroundService
{
    private readonly ILogger<Worker> _logger;
    private readonly WorkerOptions _options;
    private readonly JobStateManager _jobStateManager;
    private readonly IServiceScopeFactory _scopeFactory;

    public Worker(ILogger<Worker> logger, IOptions<WorkerOptions> options, JobStateManager jobStateManager, IServiceScopeFactory scopeFactory)
    {
        _logger = logger;
        _options = options.Value;
        _jobStateManager = jobStateManager;
        _scopeFactory = scopeFactory;
    }

    protected override async Task ExecuteAsync(CancellationToken stoppingToken)
    {
        while (!stoppingToken.IsCancellationRequested)
        {
            if (_logger.IsEnabled(LogLevel.Information))
            {
                _logger.LogInformation("Worker running at: {time}", DateTimeOffset.Now);
            }

            if (_jobStateManager.GetState<FinalizeDocumentJob>() == State.Running)
            {
                using var scope = _scopeFactory.CreateScope();
                var finalizeDocumentJob = scope.ServiceProvider.GetRequiredService<FinalizeDocumentJob>();
                await finalizeDocumentJob.ExecuteAsync(stoppingToken);
            }

            await Task.Delay(_options.DelayMilliseconds, stoppingToken);
        }
    }
}