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 Overview / Stock Position Analysis" tile -- also folds
    // in the WIP-by-stage sub-panel (see StockOverviewDashboardDTO.cs for why that's not a
    // separate tile). New aggregation over TSTOCKPOSITION, GB5's own real, live-updated table
    // (previously only exposed as a single-item internal lookup).
    public class GetStockOverviewDashboard
        : BaseReportEndpoint<GetStockOverviewDashboard.GetStockOverviewDashboardParameter, StockByCategoryDTO>
    {
        private readonly IInventoryReportsBLL _bll;

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

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

        public record GetStockOverviewDashboardParameter(
            [property: FromHeader] string Login,
            [property: FromBody] ReportCallingDTO ReportCallingDTO,
            [property: QueryParam] int OuId
        );

        protected override async IAsyncEnumerable<StockByCategoryDTO> ExecuteReportAsync(
            GetStockOverviewDashboardParameter req, LoginDTO login,
            [System.Runtime.CompilerServices.EnumeratorCancellation] CancellationToken ct)
        {
            var result = await _bll.GetStockOverviewDashboard(req.OuId, login, ct).ConfigureAwait(false);
            foreach (var row in result.ByCategory)
            {
                ct.ThrowIfCancellationRequested();
                yield return row;
            }
        }

        protected override async Task<ResponseStandardDTO<object>> ExecutePagedAsync(
            GetStockOverviewDashboardParameter req, LoginDTO login, CancellationToken ct)
        {
            try
            {
                var result = await _bll.GetStockOverviewDashboard(req.OuId, 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);
            }
        }
    }
}