[Dúvida] como faz para filtrar os dados por semana o Nextjs 14.x

Fiz um codigo que tem a funcao de receber dados de uma api (youtrack) filtrar por mes e adcionar as tarefas em uma tabela. mas agr queria saber como faz para fazer um filtragem por semana domingo - sabado ou data inicial - data final.

const MonthReport = () => {
  const [issues, setIssues] = useState<IssuesProps | null>(null)
  const [file, setFile] = useState<any>(null)
  const [residualHoursPreviousMonth, setResidualHoursPreviousMonth] = useState<number>()
  const [contractHours, setContractHours] = useState(100)
  const [selectedMonth, setSelectedMonth] = useState<number>(new Date().getMonth() - 1)

  useEffect(() => {AREA DE REQUISISAO DA API}, [])


  const handlerDownload = () => {
    const month: number = Number(prompt("Qual mês deseja fazer o relatório? (número do mês)"));
    const kubeReview: KubeReviewProps = {
      name: 'REVISÃO MANUAL DA PLATAFORMA KUBERNETES + ',
      hours: 0.25
    };
    const dateNow: Date = new Date();

    const columns = [
      { title: "Data/Mês", dataKey: "date" },
      { title: "Data semana", dataKey: "week" },
      { title: "Atividades", dataKey: "summary" },
      { title: "Horas", dataKey: "hours" },
    ];

    if (!issues) return;

    const dataGroupedByDate: { [key: string]: { date: string; week: string; summary: string; hours: number }[] } = {};


    issues.data.forEach(issue => {
      issue.timeTracking.workItems.forEach(workItem => {
        const date = formatDate(workItem.date);
        const week = getDayOfWeek(new Date(workItem.date).getDay());
        const summary = kubeReview.name + workItem.text;
        const hours = ((workItem.duration?.minutes || 0) / 60) + kubeReview.hours;

        if (!dataGroupedByDate[date]) {
          dataGroupedByDate[date] = [];
        }

        dataGroupedByDate[date].push({ date, week, summary, hours });
      });
    });

    const groupedData = Object.values(dataGroupedByDate).map(activities => {
      const totalHours = activities.reduce((total, activity) => total + activity.hours, 0);
      const combinedSummary = activities.map(activity => activity.summary).join(" + ");
      return {
        date: activities[0].date,
        week: activities[0].week,
        summary: combinedSummary,
        hours: totalHours
      };
    }).sort((a, b) => new Date(a.date).getTime() - new Date(b.date).getTime());

    const resultHours = {
      totalHours: calculationTotalHoursMonth(groupedData),
      contractHours: contractHours,
      residualHoursPreviousMonth: residualHoursPreviousMonth,
      residualHours: getResidualHours(residualHoursPreviousMonth, contractHours, calculationTotalHoursMonth(groupedData)),
    };

    const additionalRows = [
      { date: "", week: "Total de Horas", summary: "", hours: resultHours.totalHours },
      { date: "", week: "HORAS RESIDUAIS MÊS ANTERIOR", summar: "", hours: resultHours.residualHoursPreviousMonth },
      { date: "", week: "Horas Contratadas", summary: "", hours: resultHours.contractHours },
      { date: "", week: "Horas Residuais", summary: "", hours: resultHours.residualHours }
    ];

    const combinedData = [...groupedData, ...additionalRows];

    const pdf = new jsPDF();

    const imgLogoGole = logoGole.src;
    pdf.addImage(imgLogoGole, 'PNG', 10, 10, 20, 20);
    pdf.addImage(file, 'PNG', 35, 13, 15, 15);

    pdf.setFont("Time New Roman");
    pdf.setFontSize(18);
    pdf.text("Relatório de Horas", 105, 20, { align: 'center', });

    const firstDay: string = groupedData.length > 0 ? groupedData[0].date : "";
    const lastDay: string = groupedData.length > 0 ? groupedData[groupedData.length - 1].date : "";

    pdf.setFontSize(12);
    pdf.text(`${firstDay} a ${lastDay} de ${getMonthNow(month)} de ${dateNow.getFullYear()}`, 105, 30, { align: 'center', horizontalScale: 1 });

    autoTable(pdf, {
      columns: columns,
      body: combinedData,
      theme: "grid",
      startY: 40,
      headStyles: { fillColor: "#1a1a37" },
    });

    console.log("horas residuais: ", residualHoursPreviousMonth)
    pdf.save('tabela.pdf');
  };

  return (
    <>
      <Modal>
        <input type="file" onChange={handlerFile} required /> <br />
        <input type="number" name="residual-hours" id="residual-hours" placeholder="Horas residuais do mes passado" onChange={handlerResidualHoursPreviousMonth} />
        <input type="number" name="residual-hours" id="residual-hours" placeholder="Horas contratadas" onChange={handlerContractHours} value={contractHours} />
        <button onClick={handlerDownload}>Aqui!</button>
        {/* <button onClick={getWeekReport}>Relatorio semanal aqui!</button> */}
        <WeekReport />
      </Modal>
    </>
  )
}
// getWeekReport
export default MonthReport

Aceito sugestões e criticas. Desde já agradeço a atenção!!