// Licensed to the .NET Foundation under one or more agreements.
// The .NET Foundation licenses this file to you under the MIT license.
 
using System.Collections.Concurrent;
 
namespace Microsoft.Extensions.Logging.Testing;
 
public class TestSink : ITestSink
{
    private ConcurrentQueue<BeginScopeContext> _scopes;
    private ConcurrentQueue<WriteContext> _writes;
 
    public TestSink(
        Func<WriteContext, bool>? writeEnabled = null,
        Func<BeginScopeContext, bool>? beginEnabled = null)
    {
        WriteEnabled = writeEnabled;
        BeginEnabled = beginEnabled;
 
        _scopes = new ConcurrentQueue<BeginScopeContext>();
        _writes = new ConcurrentQueue<WriteContext>();
    }
 
    public Func<WriteContext, bool>? WriteEnabled { get; set; }
 
    public Func<BeginScopeContext, bool>? BeginEnabled { get; set; }
 
    public IProducerConsumerCollection<BeginScopeContext> Scopes { get => _scopes; set => _scopes = new ConcurrentQueue<BeginScopeContext>(value); }
 
    public IProducerConsumerCollection<WriteContext> Writes { get => _writes; set => _writes = new ConcurrentQueue<WriteContext>(value); }
 
    public event Action<WriteContext>? MessageLogged;
 
    public event Action<BeginScopeContext>? ScopeStarted;
 
    public void Write(WriteContext context)
    {
        if (WriteEnabled == null || WriteEnabled(context))
        {
            _writes.Enqueue(context);
        }
        MessageLogged?.Invoke(context);
    }
 
    public void Begin(BeginScopeContext context)
    {
        if (BeginEnabled == null || BeginEnabled(context))
        {
            _scopes.Enqueue(context);
        }
        ScopeStarted?.Invoke(context);
    }
 
    public static bool EnableWithTypeName<T>(WriteContext context)
    {
        return context.LoggerName?.Equals(typeof(T).FullName) == true;
    }
 
    public static bool EnableWithTypeName<T>(BeginScopeContext context)
    {
        return context.LoggerName?.Equals(typeof(T).FullName) == true;
    }
}