Prevent Form Submission

function onSubmit() {
  // Configuration: Define validation rules
  var state = g_form.getValue('state');
  var closedStates = ['6', '7', '8'];  // Resolved, Closed, Cancelled
  var requiredFields = {
    'close_code': 'Close Code',
    'close_notes': 'Close Notes'
  };

  // Check if ticket is being closed
  if (closedStates.indexOf(state) !== -1) {

    // Validate each required field
    for (var fieldName in requiredFields) {
      var fieldValue = g_form.getValue(fieldName);
      var fieldLabel = requiredFields[fieldName];

      // If field is empty, show error and prevent submission
      if (!fieldValue || fieldValue === '') {
        g_form.addErrorMessage(fieldLabel + ' is required when closing an incident.');
        g_form.flash(fieldName, '#FF0000', 0);  // Flash the field red indefinitely
        return false;  // Prevent form submission
      }
    }

    // Additional validation: Check minimum length for close notes
    var closeNotes = g_form.getValue('close_notes');
    if (closeNotes.length < 10) {
      g_form.addErrorMessage('Close Notes must be at least 10 characters long.');
      g_form.flash('close_notes', '#FF0000', 0);
      return false;
    }
  }

  // Validation passed, allow form submission
  return true;
}