namespace PrivaPub.Federation.Objects
{
	public static class Origin
	{
		public static string Of(string uri) =>
			Uri.TryCreate(uri, UriKind.Absolute, out var parsed) ? Of(parsed) : default;

		public static string Of(Uri uri) =>
			uri is { IsAbsoluteUri: true } && (uri.Scheme == Uri.UriSchemeHttps || uri.Scheme == Uri.UriSchemeHttp)
				? $"{uri.Scheme}://{uri.IdnHost.ToLowerInvariant()}:{uri.Port}"
				: default;

		public static bool Same(string first, string second)
		{
			var origin = Of(first);
			return origin != default && origin == Of(second);
		}

		public static bool IsDocumentAt(string id, Uri location) =>
			Uri.TryCreate(id, UriKind.Absolute, out var parsed)
			&& location is { IsAbsoluteUri: true }
			&& Uri.Compare(parsed, location, UriComponents.HttpRequestUrl, UriFormat.UriEscaped, StringComparison.Ordinal) == 0;
	}
}