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

namespace MMSL.EndPoints.InventoryReports
{
    // Inventory Overview Dashboard, "Stock Movement" tile. Fresh design against TSTOCKLEDGER --
    // see InventoryReportsQB's provenance comment (legacy's HQL equivalent has no portable SQL).
    // Composite dashboard object (DailyTrend+BySource+TopMovers); export streams DailyTrend rows,
    // same "yield the row-level section" convention as AccountBRSDashboardReport.
    public class GetStockMovementDashboard
        : BaseReportEndpoint<GetStockMovementDashboard.GetStockMovementDashboardParameter, DailyMovementDTO>
    {
        private readonly IInventoryReportsBLL _bll;

        public GetStockMovementDashboard(IInventoryReportsBLL bll)
        {
            _bll = bll;
        }

        public override void Configure()
        {
            Post("/InventoryReports/GetStockMovementDashboard");
            AllowAnonymous();
        }

        public record GetStockMovementDashboardParameter(
            [property: FromHeader] string Login,
            [property: FromBody] ReportCallingDTO ReportCallingDTO,
            [property: QueryParam] int OuId,
            [property: QueryParam] DateTime? PeriodFromDate,
            [property: QueryParam] DateTime? PeriodToDate,
            [property: QueryParam] int? TopN
        );

        protected override async IAsyncEnumerable<DailyMovementDTO> ExecuteReportAsync(
            GetStockMovementDashboardParameter req, LoginDTO login,
            [System.Runtime.CompilerServices.EnumeratorCancellation] CancellationToken ct)
        {
            var result = await _bll.GetStockMovementDashboard(
                req.OuId, req.PeriodFromDate, req.PeriodToDate, req.TopN, login, ct).ConfigureAwait(false);
            foreach (var row in result.DailyTrend)
            {
                ct.ThrowIfCancellationRequested();
                yield return row;
            }
        }

        protected override async Task<ResponseStandardDTO<object>> ExecutePagedAsync(
            GetStockMovementDashboardParameter req, LoginDTO login, CancellationToken ct)
        {
            try
            {
                var result = await _bll.GetStockMovementDashboard(
                    req.OuId, req.PeriodFromDate, req.PeriodToDate, req.TopN, login, ct).ConfigureAwait(false);
                return await GB5Shared.ResponseStandard.Response.CreateSuccessResponse(
                    result, 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);
            }
        }
    }
}