// Licensed to the .NET Foundation under one or more agreements.
// The .NET Foundation licenses this file to you under the MIT license.
 
using System;
using System.Collections.Generic;
using System.Threading;
using System.Threading.Tasks;
 
namespace Microsoft.Extensions.AI;
 
public sealed class TestEmbeddingGenerator : IEmbeddingGenerator<string, Embedding<float>>
{
    public EmbeddingGeneratorMetadata Metadata { get; } = new();
 
    public Func<IEnumerable<string>, EmbeddingGenerationOptions?, CancellationToken, Task<GeneratedEmbeddings<Embedding<float>>>>? GenerateAsyncCallback { get; set; }
 
    public Func<Type, object?, object?>? GetServiceCallback { get; set; }
 
    public Task<GeneratedEmbeddings<Embedding<float>>> GenerateAsync(IEnumerable<string> values, EmbeddingGenerationOptions? options = null, CancellationToken cancellationToken = default)
        => GenerateAsyncCallback!.Invoke(values, options, cancellationToken);
 
    public TService? GetService<TService>(object? key = null)
        where TService : class
        => (TService?)GetServiceCallback!(typeof(TService), key);
 
    void IDisposable.Dispose()
    {
        // No resources to dispose
    }
}