OAuthProviderInfos.cs

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using System;
 
using Tgstation.Server.Api.Models;
using Tgstation.Server.Host.Security.OAuth;
 
namespace Tgstation.Server.Host.GraphQL.Types.OAuth
{
    public sealed class OAuthProviderInfos
    {
        public BasicOAuthProviderInfo? Discord { get; }
 
        public RedirectOAuthProviderInfo? GitHub { get; }
 
        public OAuthProviderInfos(IOAuthProviders oAuthProviders)
        {
            ArgumentNullException.ThrowIfNull(oAuthProviders);
 
            var dic = oAuthProviders.ProviderInfos();
 
            TProviderInfo? TryBuild<TProviderInfo>(OAuthProvider oAuthProvider, Func<OAuthProviderInfo, TProviderInfo> contructor)
                where TProviderInfo : BasicOAuthProviderInfo
            {
                if (dic.TryGetValue(oAuthProvider, out var providerInfo))
                {
                    return contructor(providerInfo);
                }
 
                return null;
            }
 
            Discord = TryBuild(OAuthProvider.Discord, info => new BasicOAuthProviderInfo(info));
            GitHub = TryBuild(OAuthProvider.GitHub, info => new RedirectOAuthProviderInfo(info));
        }
    }
}