pulsar/Pulsar/Features/Status/StatusService.cs

namespace Pulsar.Features.Status;

using Observatory.Framework.Files;

public interface IStatusService : IJournalHandler<Status>;

public class StatusService(ILogger<StatusService> logger, IOptions<PulsarConfiguration> options, IEventHubContext hub)
    : JournalHandlerBase<Status>(logger), IStatusService
{
    public override string FileName => FileHandlerService.StatusFileName;

    public override async Task HandleFile(string filePath)
    {
        if (!ValidateFile(filePath))
        {
            return;
        }

        var file = File.Open(filePath, FileMode.Open, FileAccess.Read, FileShare.ReadWrite);
        var status = await JsonSerializer.DeserializeAsync<Status>(file);

        if (status == null)
        {
            logger.LogWarning("Failed to deserialize status file {FilePath}", filePath);
            return;
        }

        await hub.Clients.All.StatusUpdated(status);
    }

    public override async Task<Status> Get()
    {
        var statusFile = Path.Combine(options.Value.JournalDirectory, FileName);

        if (!ValidateFile(statusFile))
        {
            return new Status();
        }

        await using var file = File.Open(statusFile, FileMode.Open, FileAccess.Read, FileShare.ReadWrite);
        var status = await JsonSerializer.DeserializeAsync<Status>(file);
        if (status != null) return status;

        logger.LogWarning("Failed to deserialize status file {StatusFile}", statusFile);
        return new Status();
    }
}