using FastEndpoints;
using GB5Shared.DTO.Framework.Login;
using GB5Shared.DTO.Framework.ResponseStandard;
using GB5Shared.DTO.Promotion;
using GB5Shared.FastEndPoint;
using GB5Shared.Promotion;
using static GB5Shared.GB5Constant.Constant;

namespace TMSSL.EndPoints.Promotion
{
    // See ExportForPromotionBridge.cs header comment for the bridge's trust model and purpose.
    public class ValidateForPromotionBridge : BaseEndpoint<ValidateForPromotionBridge.Parameters, ResponseStandardDTO<object>>
    {
        private readonly IServiceProvider _ServiceProvider;

        public ValidateForPromotionBridge(IServiceProvider serviceProvider)
        {
            _ServiceProvider = serviceProvider;
        }

        public override void Configure()
        {
            Post("/PromotionBridge/ValidateForPromotion");
            AllowAnonymous();
        }

        public record Parameters(
            [property: FromBody] PromotionBundleDTO Body,
            [property: FromHeader] string Login
        );

        protected override string? GetCacheKey(Parameters req, LoginDTO loginDTO) => null;

        protected override async Task<ResponseStandardDTO<object>> ExecuteAsync(Parameters req, LoginDTO loginDTO, CancellationToken ct)
        {
            try
            {
                var result = await PromotionBridgeService.ValidateAsync(_ServiceProvider, req.Body, ct);
                return await GB5Shared.ResponseStandard.Response.CreateSuccessResponse(result, CacheKeyLevel.NOT_REQUIRED, loginDTO);
            }
            catch (Exception ex)
            {
                return await GB5Shared.ResponseStandard.Response.CreateExceptionError<string>(ex, CacheKeyLevel.NOT_REQUIRED, loginDTO, ex.Message, 500);
            }
        }
    }
}