Administration

class MainMenuAdmin:
    """
    Admin interface for main menus.
    
    Provides the administrative interface for managing site-wide
    main navigation menus through Wagtail's admin panel.
    """
    
    model = 'MainMenu'
    menu_label = 'Main menus'
    menu_icon = 'list-ul'
    list_display = ['site', 'max_levels']
    list_filter = ['site']
    
class FlatMenuAdmin:
    """
    Admin interface for flat menus.
    
    Provides the administrative interface for managing custom
    flat menus (footer, sidebar, etc.) through Wagtail's admin panel.
    """
    
    model = 'FlatMenu'
    menu_label = 'Flat menus'
    menu_icon = 'list-ul'
    list_display = ['title', 'handle', 'site']
    list_filter = ['site']
    search_fields = ['title', 'handle']

class MainMenuIndexView:
    """Index view for main menus showing all site main menus."""
    
    template_name = 'wagtailmenus/admin/mainmenu_index.html'
    
class MainMenuEditView:
    """Edit view for main menu configuration and items."""
    
    template_name = 'wagtailmenus/admin/mainmenu_edit.html'
    
class FlatMenuIndexView:
    """Index view for flat menus showing all flat menus."""
    
    template_name = 'wagtailmenus/admin/flatmenu_index.html'
    
class FlatMenuCreateView:
    """Create view for new flat menus."""
    
    template_name = 'wagtailmenus/admin/flatmenu_create.html'

class MenuItemInlinePanel:
    """
    Base inline panel for menu items.
    
    Provides the foundation for inline editing of menu items
    within menu admin interfaces.
    """
    
    panels = [
        # Standard menu item editing panels
    ]
    
class MainMenuItemsInlinePanel(MenuItemInlinePanel):
    """
    Inline panel for main menu items.
    
    Allows editing of main menu items directly within
    the main menu admin interface.
    """
    
    model = 'MainMenuItem'
    heading = 'Menu items'
    
class FlatMenuItemsInlinePanel(MenuItemInlinePanel):
    """
    Inline panel for flat menu items.
    
    Allows editing of flat menu items directly within
    the flat menu admin interface.
    """
    
    model = 'FlatMenuItem'
    heading = 'Menu items'

# Main menu panel configurations
main_menu_content_panels: list
"""Content panels for main menu editing interface."""

flat_menu_content_panels: list
"""Content panels for flat menu editing interface."""

menu_settings_panels: list
"""Settings panels for menu configuration options."""

# Page-related panel configurations
linkpage_edit_handler: object
"""Edit handler for link pages in admin interface."""

menupage_settings_panels: list
"""Settings panels for menu-enabled pages."""

class FlatMenuAdminForm:
    """
    Admin form for flat menus.
    
    Provides validation and custom functionality for flat menu
    creation and editing in the admin interface.
    """
    
    class Meta:
        model = 'FlatMenu'
        fields = '__all__'
        
    def clean_handle(self):
        """Validate flat menu handle uniqueness and format."""
        
    def clean(self):
        """Perform cross-field validation for flat menu data."""
        
class LinkPageAdminForm:
    """
    Admin form for link pages.
    
    Provides validation for link pages ensuring proper URL
    formatting and required field completion.
    """
    
    class Meta:
        model = 'AbstractLinkPage'
        fields = '__all__'
        
    def clean_link_url(self):
        """Validate link URL format and accessibility."""
        
class SiteSwitchForm:
    """
    Form for switching between sites in multi-site setups.
    
    Allows administrators to switch context between different
    sites when managing menus in multi-site installations.
    """
    
    site: 'Site'  # Site selection field
    
    def __init__(self, *args, **kwargs):
        """Initialize form with available sites."""

# In your wagtail_hooks.py or similar
from wagtail import hooks
from wagtailmenus.menuadmin import MainMenuAdmin, FlatMenuAdmin

# Admin classes are automatically registered by wagtailmenus
# But you can customize them:

@hooks.register('register_admin_menu_item')
def register_custom_menu_admin():
    return MainMenuAdmin()

from wagtailmenus.menuadmin import FlatMenuAdmin
from wagtailmenus.models import FlatMenu

class CustomFlatMenuAdmin(FlatMenuAdmin):
    """Custom flat menu admin with additional functionality."""
    
    list_display = ['title', 'handle', 'site', 'created_at']
    list_filter = ['site', 'created_at']
    search_fields = ['title', 'handle', 'heading']
    
    def get_queryset(self, request):
        """Filter menus based on user permissions."""
        qs = super().get_queryset(request)
        
        if not request.user.is_superuser:
            # Limit to current site for non-superusers
            current_site = request.site
            qs = qs.filter(site=current_site)
            
        return qs

from wagtailmenus.panels import MenuItemInlinePanel
from wagtail.admin.panels import FieldPanel, InlinePanel

class CustomMenuItemInlinePanel(MenuItemInlinePanel):
    """Custom menu item inline with additional fields."""
    
    panels = [
        FieldPanel('link_text'),
        FieldPanel('link_page'),
        FieldPanel('link_url'),
        FieldPanel('allow_subnav'),
        FieldPanel('custom_css_class'),  # Additional custom field
        FieldPanel('icon'),  # Additional custom field
    ]
    
    extra = 0
    min_num = 1

# Use in your menu model
class CustomFlatMenu(AbstractFlatMenu):
    content_panels = [
        FieldPanel('title'),
        FieldPanel('handle'),
        FieldPanel('heading'),
        InlinePanel('menu_items', panels=CustomMenuItemInlinePanel.panels),
    ]

from wagtailmenus.forms import FlatMenuAdminForm
from django import forms

class CustomFlatMenuForm(FlatMenuAdminForm):
    """Custom form with additional validation."""
    
    def clean_handle(self):
        """Custom handle validation."""
        handle = self.cleaned_data.get('handle')
        
        if handle:
            # Ensure handle follows custom naming convention
            if not handle.startswith('custom-'):
                raise forms.ValidationError(
                    "Handle must start with 'custom-'"
                )
                
            # Check for conflicts with other handles
            if handle in ['reserved', 'admin', 'api']:
                raise forms.ValidationError(
                    "This handle is reserved and cannot be used"
                )
                
        return handle
    
    def clean(self):
        """Cross-field validation."""
        cleaned_data = super().clean()
        title = cleaned_data.get('title')
        handle = cleaned_data.get('handle')
        
        if title and handle:
            # Ensure handle relates to title
            if not any(word in handle for word in title.lower().split()):
                self.add_error('handle', 
                    'Handle should relate to the menu title')
                    
        return cleaned_data

# Use custom form in admin
class CustomFlatMenuAdmin(FlatMenuAdmin):
    form = CustomFlatMenuForm

from wagtail.admin.panels import FieldPanel, InlinePanel, TabbedInterface, ObjectList

# Custom panel layout for main menus
custom_main_menu_panels = [
    FieldPanel('site'),
    FieldPanel('max_levels'),
    FieldPanel('use_specific_templates'),
    InlinePanel('menu_items', panels=[
        FieldPanel('link_text'),
        FieldPanel('link_page'),
        FieldPanel('link_url'),
        FieldPanel('allow_subnav'),
    ]),
]

# Tabbed interface for complex menus
class AdvancedFlatMenu(AbstractFlatMenu):
    edit_handler = TabbedInterface([
        ObjectList(flat_menu_content_panels, heading='Content'),
        ObjectList(menu_settings_panels, heading='Settings'),
        ObjectList([
            FieldPanel('seo_title'),
            FieldPanel('search_description'),
        ], heading='SEO'),
    ])

from wagtailmenus.forms import SiteSwitchForm
from django.shortcuts import render, redirect

def admin_menu_view(request):
    """Admin view with site switching capability."""
    
    if request.method == 'POST':
        form = SiteSwitchForm(request.POST)
        if form.is_valid():
            selected_site = form.cleaned_data['site']
            # Store selected site in session
            request.session['admin_site_id'] = selected_site.id
            return redirect('wagtailmenus_mainmenu_index')
    else:
        # Initialize with current site
        current_site = getattr(request, 'site', None)
        form = SiteSwitchForm(initial={'site': current_site})
    
    return render(request, 'admin/site_switch.html', {
        'form': form,
        'current_site': current_site,
    })

# Admin class attributes
class AdminTypes:
    model: str | type
    menu_label: str
    menu_icon: str
    list_display: list[str]
    list_filter: list[str]
    search_fields: list[str]
    
# Panel configuration types
class PanelTypes:
    main_menu_content_panels: list
    flat_menu_content_panels: list
    menu_settings_panels: list
    linkpage_edit_handler: object
    menupage_settings_panels: list
    
# Form field types
class FormTypes:
    handle: str
    link_url: str
    site: 'Site'