using FastEndpoints;
using GB5Shared.DTO.Framework.Login;
using GB5Shared.DTO.Framework.ResponseStandard;
using GB5Shared.FastEndPoint;
using MMBLL.MMHead;
using MMDAL.DTO.MMHead;
using static GB5Shared.GB5Constant.Constant;

namespace MMSL.EndPoints.MMHead
{
    // Ported from GB4's POST /mms/MMHead.svc/Account/Posting/From/FE/?IsSummary=
    // Previews the account posting entries a document would generate, computed from the
    // FE-submitted (not-yet-saved) document — contrast with VoucherFormingFromMMHeadProcedureBased,
    // which forms a voucher from an already-saved one.
    public class AccountPostingFromFE : BaseEndpoint<AccountPostingFromFE.AccountPostingFromFEParameters, object>
    {
        private readonly IMMHeadBLL _MMHeadBLL;

        public AccountPostingFromFE(IMMHeadBLL MMHeadBLL)
        {
            _MMHeadBLL = MMHeadBLL;
        }

        public override void Configure()
        {
            Post("/MMHead/AccountPostingFromFE");
            AllowAnonymous();
        }

        public record AccountPostingFromFEParameters(
            [property: FromBody]   MMHeadDTO MMHeadDTO,
            [property: QueryParam] byte      IsSummary,
            [property: FromHeader] string    Login
        );

        // Never cached — this previews a live, unsaved document every call.
        protected override string? GetCacheKey(AccountPostingFromFEParameters parameters, LoginDTO loginDTO) => null;

        protected override async Task<ResponseStandardDTO<object>> ExecuteAsync(
            AccountPostingFromFEParameters parameters, LoginDTO loginDTO, CancellationToken ct)
        {
            try
            {
                var result = await _MMHeadBLL.AccountPostingFromFE(
                    parameters.MMHeadDTO, parameters.IsSummary, loginDTO!, 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);
            }
        }
    }
}