using PCC2.EventBus;

namespace PCC2.Logging;

internal static class LoggingHolder
{
    private static readonly List<LoggingEvent> _held = new();

    public static void Init(IAsyncEventBus eventBus) => eventBus.Subscript<LoggingEvent>(AddLog);

    private static Task AddLog(LoggingEvent obj)
    {
        lock (_held)
        {
            _held.Add(obj);
        }
        return Task.CompletedTask;
    }

    public static int Count
    {
        get
        {
            lock (_held)
            {
                return _held.Count;
            };
        }
    }

    public static IReadOnlyList<LoggingEvent> Get(LogLevel flags, int skip, int take)
    {
        IReadOnlyList<LoggingEvent> result;
        lock (_held)
        {
            result = _held.Where(p => flags.HasFlag(p.LogLevel)).Skip(skip).Take(take).ToArray();
        }
        return result;
    }

    public static void Clear()
    {
        lock (_held)
        {
            _held.Clear();
        }
    }
}