using System.Linq;
using System.Net;

namespace ParadoxSaveParser.WebAPI.HttpHelpers;

public class RequestHelper
{
    internal static ValueOrError<string> GetQueryValue(HttpListenerContext ctx, string paramName)
    {
        string[]? values = ctx.Request.QueryString.GetValues(paramName);
        string? value = values?.FirstOrDefault();
        if (string.IsNullOrEmpty(value))
            return new ErrorMessage(HttpStatusCode.BadRequest,
                $"No request parameter '{paramName}' provided");
        return value;
    }
}