TheXamlGuy/Framework/Core/Configurations/ConfigurationWriter.cs

using Microsoft.Extensions.Configuration;

namespace TheXamlGuy.Framework.Core
{
    public class ConfigurationWriter<TConfiguration> : IConfigurationWriter<TConfiguration> where TConfiguration : class, new()
    {
        private readonly IConfiguration rootConfiguration;

        public ConfigurationWriter(IConfiguration rootConfiguration)
        {
            this.rootConfiguration = rootConfiguration;
        }

        public void Write(string section, TConfiguration configuration)
        {
            if (rootConfiguration is IConfigurationRoot root)
            {
                foreach (IConfigurationProvider? provider in root.Providers)
                {
                    if (provider is IWritableConfigurationProvider writableConfigurationProvider)
                    {
                        writableConfigurationProvider.Write(section, configuration);
                    }
                }
            }
        }
    }
}