using AccountsBLL.AccountReports.BSReport;
using AccountsDAL.DTO.Reports;
using FastEndpoints;
using GB5Shared.DTO.Framework.Login;
using GB5Shared.DTO.Framework.ResponseStandard;
using GB5Shared.DTO.Report;
using GB5Shared.FastEndPoint;
using static GB5Shared.GB5Constant.Constant;

namespace AccountsSL.EndPoints.AccountReports
{
    // GB5-native replacement for the GB4 legacy gb4/as/AccountsReports.svc/BalanceSheetHorizontal
    // endpoint — MREPORT -1399975249 "Balance Sheet Horizontal", live menus AC20084 (Schedule)/
    // AC20085 (Group)/AC20086 (Account). Cut over via MWEBSERVICE.SECONDURITEMPLATE — see the
    // companion migration and BSVerticalHorizontalReportQB.cs's class header.
    public class BSHorizontalReport : BaseReportEndpoint<BSHorizontalReport.BSHorizontalReportParameter, BalaceSheetHorizontalReportDTO>
    {
        private readonly IBSReportBLL _bll;

        public BSHorizontalReport(IBSReportBLL bll)
        {
            _bll = bll;
        }

        public override void Configure()
        {
            Post("/AccountReports/BSHorizontalReport");
            AllowAnonymous();
        }

        public record BSHorizontalReportParameter(
            [property: FromHeader] string Login,
            [property: FromBody] ReportCallingDTO ReportCallingDTO,
            // String, not int — matches the live {GroupType} substitution on AC20084/85/86's own
            // MMENU.URIPARAMETERVALUE ('ACCOUNTSCHEDULE'/'ACCOUNTGROUP'/'ACCOUNT'). Note the
            // placeholder name genuinely differs from BSVerticalReport's "Type" — confirmed live,
            // not a typo.
            [property: QueryParam] string? GroupType,
            [property: QueryParam] int FirstNumber,
            [property: QueryParam] int MaxResult
        );

        private static int ToGroupType(string? type) => type?.ToUpperInvariant() switch
        {
            "ACCOUNTGROUP" => 1,
            "ACCOUNTSCHEDULE" => 2,
            _ => 0,
        };

        protected override async IAsyncEnumerable<BalaceSheetHorizontalReportDTO> ExecuteReportAsync(
            BSHorizontalReportParameter req, LoginDTO login,
            [System.Runtime.CompilerServices.EnumeratorCancellation] CancellationToken ct)
        {
            var rows = await _bll.GetBSHorizontal(
                ToGroupType(req.GroupType), req.ReportCallingDTO.CriteriaDTO, req.ReportCallingDTO.MenuId, login).ConfigureAwait(false);
            foreach (var row in rows)
            {
                ct.ThrowIfCancellationRequested();
                yield return row;
            }
        }

        protected override async Task<ResponseStandardDTO<object>> ExecutePagedAsync(
            BSHorizontalReportParameter req, LoginDTO login, CancellationToken ct)
        {
            try
            {
                var rows = await _bll.GetBSHorizontal(
                    ToGroupType(req.GroupType), req.ReportCallingDTO.CriteriaDTO, req.ReportCallingDTO.MenuId, login).ConfigureAwait(false);
                return await GB5Shared.ResponseStandard.Response.CreateSuccessResponse(
                    rows, CacheKeyLevel.NOT_REQUIRED, login).ConfigureAwait(false);
            }
            catch (Exception ex)
            {
                return await GB5Shared.ResponseStandard.Response.CreateExceptionError<string>(
                    ex, CacheKeyLevel.NOT_REQUIRED, login, ex.Message, 500).ConfigureAwait(false);
            }
        }
    }
}