function validate() {

  const tabs = Array.from(document.querySelectorAll('fw-tab'));
  const allTabsHiddenExceptFirst = tabs.slice(1).every(tab => tab.style.visibility === 'hidden');

  if (allTabsHiddenExceptFirst) {
    showErrorToast("Error! Please Click Validate to Validate the App and then Click Install/Save.");
    return false;
  }



  // Fields Dropdown Validations
  const merchantDropdown = document.querySelector('#merchantFieldDropdown');
  const vendorDropdown = document.querySelector('#vendorFieldDropdown');

  if ((!merchantDropdown || !merchantDropdown.value || merchantDropdown.value === 'default') &&
    (!vendorDropdown || !vendorDropdown.value || vendorDropdown.value === 'default')) {
      moveToTab('fieldstab'); // Move to the Workspace tab
      showErrorToast("Error! Please choose a Merchant and Vendor Field.");
    return false;
  } else if (!merchantDropdown || !merchantDropdown.value || merchantDropdown.value === 'default') {
    moveToTab('fieldstab'); // Move to the Workspace tab
    showErrorToast("Error! Please choose a Merchant Field.");
    return false;
  } else if (!vendorDropdown || !vendorDropdown.value || vendorDropdown.value === 'default') {
    moveToTab('fieldstab'); // Move to the Workspace tab
    showErrorToast("Error! Please choose a Vendor Field.");
    return false;
  }



  // Workspace Dropdown Validations
  const merchantWorkspaceDropdown = document.querySelector('#merchantWorkspaceSelect');
  const vendorWorkspaceDropdown = document.querySelector('#vendorWorkspaceSelect');

  if ((!merchantWorkspaceDropdown || !merchantWorkspaceDropdown.value || merchantWorkspaceDropdown.value === 'default') &&
    (!vendorWorkspaceDropdown || !vendorWorkspaceDropdown.value || vendorWorkspaceDropdown.value === 'default')) {
      moveToTab('workspace-tab'); // Move to the Workspace tab

      showErrorToast("Error! Please choose a Merchant and Vendor Workspace.");
    return false;
  } else if (!merchantWorkspaceDropdown || !merchantWorkspaceDropdown.value || merchantWorkspaceDropdown.value === 'default') {
    moveToTab('workspace-tab'); // Move to the Workspace tab
    showErrorToast("Error! Please choose a Merchant Workspace.");
    return false;
  } else if (!vendorWorkspaceDropdown || !vendorWorkspaceDropdown.value || vendorWorkspaceDropdown.value === 'default') {
    moveToTab('workspace-tab'); // Move to the Workspace tab
    showErrorToast("Error! Please choose a Vendor Workspace.");
    return false;
  }



  if (ticketworkflowconditions.length === 0) {
    showErrorToast("Error! Please Choose an Event.");
    moveToTab('ticketworkflow'); // Move to the Workspace tab
    return false;
  }

  // Field and Choices Validation
  const fieldsDropdowns = document.querySelectorAll('.field-name-dropdown');
  const choicesDropdowns = document.querySelectorAll('.choices-dropdown');
  for (let i = 0; i < fieldsDropdowns.length; i++) {
    const fieldDropdown = fieldsDropdowns[i];
    const choicesDropdown = choicesDropdowns[i];

    if (!fieldDropdown.value || fieldDropdown.value === 'default') {
      showErrorToast(`Error! Please select a Field.`);
      moveToTab('ticketworkflow'); // Move to the Workspace tab
      return false;
    }

    if (!choicesDropdown || !choicesDropdown.value || choicesDropdown.value === 'default') {
      showErrorToast(`Error! Please select a choice for the Field.`);
      moveToTab('ticketworkflow'); // Move to the Workspace tab
      return false;
    }
  }

  
  const mandatoryFields = document.querySelectorAll(
  '#tabs3 .form-group input:not([type="checkbox"]), #tabs3 .form-group select, #tabs4 .form-group input:not([type="checkbox"]), #tabs4 .form-group select, #tabs3 .form-group fw-select[multiple], #tabs3 .form-group fw-select, #tabs4 .form-group fw-select'
);

let unfilledFields = [];

// Validate all mandatory fields, including dynamically added dependent dropdowns
mandatoryFields.forEach((field) => {
  const fieldLabelElement = field.closest('.form-group').querySelector('label, h6');
  const fieldLabel = fieldLabelElement ? fieldLabelElement.textContent.trim() : '';
  const fieldName = fieldLabel.replace(/\s*\*\s*$/, ''); // Remove asterisks if present

  // Validate 'fw-select' dropdown fields
  if (field.tagName.toLowerCase() === 'fw-select') {
    if (field.hasAttribute('multiple')) {
      // Multi-select dropdown check (ensure at least one value is selected)
      if (!field.value || field.value.length === 0) {
        if (!unfilledFields.includes(fieldName)) {
          unfilledFields.push(fieldName); // Add to unfilledFields if it's not already there
        }
      }
    } else {
      // Single-select dropdown check (ensure default value is not selected)
      if (!field.value || field.value === 'default') {
        if (!unfilledFields.includes(fieldName)) {
          unfilledFields.push(fieldName); // Add to unfilledFields if it's not already there
        }
      }
    }
  } else if (!field.value.trim() || field.value === 'default') {
    // Check for empty or default values in other input fields (like text inputs)
    if (!unfilledFields.includes(fieldName)) {
      unfilledFields.push(fieldName); // Add to unfilledFields if it's not already there
    }
  }

  // Validate dependent dropdowns if present
  const dependentDropdowns = field.closest('.form-group').querySelectorAll('fw-select');
  dependentDropdowns.forEach((dropdown) => {
    const dependentLabelElement = dropdown.closest('.form-group').querySelector('label, h6');
    const dependentLabel = dependentLabelElement ? dependentLabelElement.textContent.trim() : '';
    const dependentName = dependentLabel.replace(/\s*\*\s*$/, ''); // Remove asterisks if present

    // If the dependent dropdown is empty or has the default value, add it to unfilledFields
    if (!dropdown.value || dropdown.value === 'default') {
      if (!unfilledFields.includes(dependentName)) {
        unfilledFields.push(dependentName); // Add to unfilledFields if it's not already there
      }
    }
  });
});

// Filter out invalid or empty field names from the unfilledFields array
unfilledFields = unfilledFields.filter((fieldName) => fieldName && fieldName.trim());

// If there are unfilled fields, show an error message
if (unfilledFields.length > 0) {
  const errorMessage = `Error! Please fill in the following Mandatory Fields: ${unfilledFields.join(', ')}.`;
  moveToTab('mandatoryFields'); // Move to the Workspace tab (or appropriate tab)
  showErrorToast(errorMessage);
  return false; // Return false to prevent form submission
}


  const isStatusSyncEnabled = statusToggle.checked;
  const isDepartmentSyncEnabled = departmentToggle.checked;

  if (isStatusSyncEnabled && Object.keys(mappings).length === 0) {
    showErrorToast("Error! Please add at least one Status Mapping.");
    moveToTab('status-mapping'); 
    return false;
  }

  if (isDepartmentSyncEnabled && Object.keys(dmappings).length === 0) {
    showErrorToast("Error! Please add at least one Department Mapping.");
    moveToTab('departmentfields-mapping');
    return false;
  }

  const agentEmailsSelected = email_config.agent_email;
  const externalEmailsTyped = email_config.external_email;

  if (!agentEmailsSelected || agentEmailsSelected.length === 0) {
    showErrorToast("Error! Please choose at least one agent in the Agent Email dropdown.");
    moveToTab('email-tab'); 
    return false;
  }

  //  if (!externalEmailsTyped || externalEmailsTyped.length === 0) {
  //    showErrorToast("Error! Please provide at least one external email.");
  //    return false;
  //  }

  return true;
}


explain this