// Licensed to the .NET Foundation under one or more agreements.
// The .NET Foundation licenses this file to you under the MIT license.
 
using Microsoft.AspNetCore.Mvc;
using Microsoft.AspNetCore.Mvc.Formatters;
using Microsoft.AspNetCore.Mvc.Formatters.Xml;
using Microsoft.AspNetCore.Mvc.ModelBinding;
using Microsoft.AspNetCore.Mvc.ModelBinding.Metadata;
using Microsoft.Extensions.Logging;
using Microsoft.Extensions.Options;
 
namespace Microsoft.Extensions.DependencyInjection;
 
/// <summary>
/// A <see cref="IConfigureOptions{TOptions}"/> implementation which will add the
/// data contract serializer formatters to <see cref="MvcOptions"/>.
/// </summary>
internal sealed class XmlDataContractSerializerMvcOptionsSetup : IConfigureOptions<MvcOptions>
{
    private readonly ILoggerFactory _loggerFactory;
 
    /// <summary>
    /// Initializes a new instance of <see cref="XmlDataContractSerializerMvcOptionsSetup"/>.
    /// </summary>
    /// <param name="loggerFactory">The <see cref="ILoggerFactory"/>.</param>
    public XmlDataContractSerializerMvcOptionsSetup(ILoggerFactory loggerFactory)
    {
        _loggerFactory = loggerFactory ?? throw new ArgumentNullException(nameof(loggerFactory));
    }
 
    /// <summary>
    /// Adds the data contract serializer formatters to <see cref="MvcOptions"/>.
    /// </summary>
    /// <param name="options">The <see cref="MvcOptions"/>.</param>
    public void Configure(MvcOptions options)
    {
        options.ModelMetadataDetailsProviders.Add(new DataMemberRequiredBindingMetadataProvider());
 
        var inputFormatter = new XmlDataContractSerializerInputFormatter(options);
        inputFormatter.WrapperProviderFactories.Add(new ProblemDetailsWrapperProviderFactory());
        options.InputFormatters.Add(inputFormatter);
 
        var outputFormatter = new XmlDataContractSerializerOutputFormatter(_loggerFactory);
        outputFormatter.WrapperProviderFactories.Add(new ProblemDetailsWrapperProviderFactory());
        options.OutputFormatters.Add(outputFormatter);
 
        // Do not override any user mapping
        var key = "xml";
        var mapping = options.FormatterMappings.GetMediaTypeMappingForFormat(key);
        if (string.IsNullOrEmpty(mapping))
        {
            options.FormatterMappings.SetMediaTypeMappingForFormat(
                key,
                MediaTypeHeaderValues.ApplicationXml);
        }
 
        options.ModelMetadataDetailsProviders.Add(new SuppressChildValidationMetadataProvider("System.Xml.Linq.XObject"));
        options.ModelMetadataDetailsProviders.Add(new SuppressChildValidationMetadataProvider("System.Xml.XmlNode"));
    }
}