{% include 'includes/header.html' %}

</script>

<!-- Modal dialog box html-->
<div id="myModal" class="modal">
        <div class="modal-content">
                <div class="row mt-2">
                        <div class="col">
                                <div class="warning"></div>
                        </div>
                        <div class="col col-auto mt-3 mb-3">
                                <span id="err_message"></span>
                        </div>
                        <div class="col col-auto">
                                <div>
                                        <span class="close">&times;</span>
                                </div>
                        </div>
                </div>
        </div>
</div>

<p class="page_title">Delete location <i>{{loc_name}}</i></p>
<form action="/cp_locdelsuccess/{{loc_name}}" method = "POST" name="edit_cat" onsubmit="return validateForm(event);">
  <div class="container-fluid">
  <div class="row">
     <p>You are about to delete the location "<i>{{loc_name}}</i>". This cannot be undone. </p>
     <p>All boxes with this location will be set to <i>Unspecified</i>
    </div>
    <div class="row">
      <button type="submit" class="imps trash button_smallm">
       Delete
      </button>
    </div>
  </div>
</div>
</form>
<script>
var modal = document.getElementById("myModal");
var btn = document.getElementById("myBtn");
var span = document.getElementsByClassName("close")[0];
span.onclick = function() {
  modal.style.display = "none";
}

function validateForm() {
  let num_input = document.forms["select_box"]["box-num"].value;

  var num_to_check = Number(num_input) ;

  if (num_input == ""){
    //alert("Box number is required");
    modal.style.display = "block";
    document.getElementById('err_message').innerHTML="You must enter a box number.";
    span.onclick = function() {
        modal.style.display = "none";
    }
    return false;
  }

  if (isNaN(num_input)){
    modal.style.display = "block";
    document.getElementById('err_message').innerHTML="Box numbers must be numerals.";
    span.onclick = function() {
        modal.style.display = "none";
    }
    return false;
  }

  const valid_numbers = {{available_boxes}};

  if (valid_numbers.includes(num_to_check)!=1) {
    modal.style.display = "block";
    document.getElementById('err_message').innerHTML="Box "+num_to_check+" is not in use. <br>Please select a different box number.";
    span.onclick = function() {
        modal.style.display = "none";
    }

    return false;
  }
}

</script>



{% include 'includes/footer.html' %}