$(document).ready(function () {

// this function is used to generate csrf token
function getCookie(name) {
  let cookieValue = null;
  if (document.cookie && document.cookie !== "") {
    const cookies = document.cookie.split(";");
    for (let i = 0; i < cookies.length; i++) {
      const cookie = cookies[i].trim();
      // Does this cookie string begin with the name we want?
      if (cookie.substring(0, name.length + 1) === (name + "=")) {
        cookieValue = decodeURIComponent(cookie.substring(name.length + 1));
        break;
      }
    }
  }
  return cookieValue;
}


  $select = $("#id_period").select2({
    minimumResultsForSearch: -1,
  }).on("change", function () {
    let $this = $(this)
    periodChange($this)
  });

  $select.data('select2').$selection.addClass('oh-select--lg--custom'); //adding css class for the select

  // period assigning to dates
  function periodChange(period_data) {

    var period_id = period_data.val()
    $.ajax({
      url: '/pms/period-change',
      type: "POST",
      dataType: "json",
      data: JSON.stringify(period_id),

      headers: {
        "X-Requested-With": "XMLHttpRequest",
        "X-CSRFToken": getCookie("csrftoken"),

      },
      success: (data) => {
        // adding data to start and end date
        $('#id_start_date').val(data.start_date)
        $('#id_end_date').val(data.end_date)


      },
      error: (error) => {
        console.log('Error', error);
      }
    })
  }
});