using FastEndpoints;
using GB5Shared.DTO.Framework.Login;
using GB5Shared.DTO.Framework.ResponseStandard;
using GB5Shared.DTO.Report;
using GB5Shared.FastEndPoint;
using PayRollBLL.PayProcess;
using PayRollDAL.DTO.PayProcess;
using static GB5Shared.GB5Constant.Constant;

namespace PayRollSL.EndPoints.PayProcess;

/// <summary>
/// Salary Abstract Summary follows the same report endpoint/BLL/DAL pattern as
/// AccountsSL's GetDayBooks endpoint, including streaming export support.
/// </summary>
public sealed class SalaryAbstractSummary : BaseReportEndpoint<SalaryAbstractSummary.Request, SalaryAbstractSummaryDTO>
{
    private readonly ISalaryAbstractSummaryBLL _bll;

    public SalaryAbstractSummary(ISalaryAbstractSummaryBLL bll)
    {
        _bll = bll;
    }

    public override void Configure()
    {
        Post("/PayProcess/SalaryAbstractSummary");
        AllowAnonymous();
    }

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

    public override async Task HandleAsync(Request req, CancellationToken ct)
    {
        // GB4 callers commonly carry a ReportFormat header while sending a legacy
        // negative ReportViewId. That header switches BaseReportEndpoint into the
        // metadata/export pipeline, which cannot resolve a report view and can
        // fail before the Salary Abstract query is executed. Treat it as the
        // normal paged report request; real exports require a valid positive view.
        if (req.ReportCallingDTO?.ReportViewId <= 0)
            HttpContext.Request.Headers.Remove("ReportFormat");

        await base.HandleAsync(req, ct);
    }

    protected override IAsyncEnumerable<SalaryAbstractSummaryDTO> ExecuteReportAsync(
        Request req, LoginDTO login, CancellationToken ct) =>
        _bll.GetSalaryAbstractSummaryStream(
            req.FirstNumber, req.MaxResult, req.ReportCallingDTO.CriteriaDTO, login, ct);

    protected override async Task<ResponseStandardDTO<object>> ExecutePagedAsync(
        Request req, LoginDTO login, CancellationToken ct)
    {
        var result = await _bll.GetSalaryAbstractSummary(
            req.FirstNumber, req.MaxResult, req.ReportCallingDTO.CriteriaDTO, login, ct);
        return await GB5Shared.ResponseStandard.Response.CreateSuccessResponse(
            result, CacheKeyLevel.NOT_REQUIRED, login);
    }
}