// 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;

namespace Microsoft.AspNetCore.Mvc.ApiExplorer
{
    /// <summary>
    /// Provides metadata information about the response format to an <c>IApiDescriptionProvider</c>.
    /// </summary>
    /// <remarks>
    /// An <see cref="Formatters.IOutputFormatter"/> should implement this interface to expose metadata information
    /// to an <c>IApiDescriptionProvider</c>.
    /// </remarks>
    public interface IApiResponseTypeMetadataProvider
    {
        /// <summary>
        /// Gets a filtered list of content types which are supported by the <see cref="Formatters.IOutputFormatter"/>
        /// for the <paramref name="objectType"/> and <paramref name="contentType"/>.
        /// </summary>
        /// <param name="contentType">
        /// The content type for which the supported content types are desired, or <c>null</c> if any content
        /// type can be used.
        /// </param>
        /// <param name="objectType">
        /// The <see cref="Type"/> for which the supported content types are desired.
        /// </param>
        /// <returns>Content types which are supported by the <see cref="Formatters.IOutputFormatter"/>.</returns>
        IReadOnlyList<string>? GetSupportedContentTypes(
            string contentType,
            Type objectType);
    }
}
