using System.Collections.Concurrent;
using Microsoft.Extensions.Logging;

namespace BuildFlow.Monitoring.Tests.Sync;

/// <summary>记录结构化日志格式化后的级别和文本，供安全断言使用。</summary>
public sealed class RecordingLogger<T> : ILogger<T>
{
    private readonly ConcurrentQueue<(LogLevel Level, string Message)> _entries = new();

    /// <summary>当前已记录的所有日志。</summary>
    public IReadOnlyCollection<(LogLevel Level, string Message)> Entries => _entries.ToArray();

    public IDisposable? BeginScope<TState>(TState state) where TState : notnull => null;

    public bool IsEnabled(LogLevel logLevel) => true;

    public void Log<TState>(
        LogLevel logLevel,
        EventId eventId,
        TState state,
        Exception? exception,
        Func<TState, Exception?, string> formatter)
        => _entries.Enqueue((logLevel, formatter(state, exception)));
}