using FastEndpoints;
using GB5Shared.DTO.Framework.Login;
using GB5Shared.DTO.Framework.ResponseStandard;
using GB5Shared.DTO.Report;
using GB5Shared.FastEndPoint;
using RecruitmentBLL.Reports.PipelineConversionFunnel;
using RecruitmentDAL.DTO.Reports;
using static GB5Shared.GB5Constant.Constant;

namespace RecruitmentSL.EndPoints.RecruitmentReports
{
    // Phase 5 analytics — pipeline-conversion (funnel) report. Row grain: one row per
    // SelectionProcessStage ordered by StageOrder within its template — see
    // PipelineConversionFunnelDTO's doc comment. ReportCallingDTO.CriteriaDTO.Id, when > 0, scopes
    // the funnel to a single SelectionProcessTemplateId; omitted/0 returns every template's funnel
    // for the tenant.
    public class GetPipelineConversionFunnel
        : BaseReportEndpoint<GetPipelineConversionFunnel.GetPipelineConversionFunnelParameter, PipelineConversionFunnelDTO>
    {
        private readonly IPipelineConversionFunnelBLL _bll;

        public GetPipelineConversionFunnel(IPipelineConversionFunnelBLL bll)
        {
            _bll = bll;
        }

        public override void Configure()
        {
            Post("/RecruitmentReports/GetPipelineConversionFunnel");
            AllowAnonymous();
        }

        public record GetPipelineConversionFunnelParameter(
            [property: FromHeader] string Login,
            [property: FromBody] ReportCallingDTO ReportCallingDTO,
            [property: QueryParam] int FirstNumber,
            [property: QueryParam] int MaxResult,
            [property: QueryParam] int MenuId
        );

        protected override IAsyncEnumerable<PipelineConversionFunnelDTO> ExecuteReportAsync(
            GetPipelineConversionFunnelParameter req, LoginDTO login, CancellationToken ct)
            => _bll.GetPipelineConversionFunnelStream(
                req.FirstNumber, req.MaxResult, req.ReportCallingDTO?.CriteriaDTO, login, ct);

        protected override async Task<ResponseStandardDTO<object>> ExecutePagedAsync(
            GetPipelineConversionFunnelParameter req, LoginDTO login, CancellationToken ct)
        {
            var result = await _bll.GetPipelineConversionFunnel(
                req.FirstNumber, req.MaxResult, req.ReportCallingDTO?.CriteriaDTO, login, ct).ConfigureAwait(false);

            return await GB5Shared.ResponseStandard.Response.CreateSuccessResponse(
                result, CacheKeyLevel.NOT_REQUIRED, login);
        }
    }
}