from flask_menu import FlaskMenu
import check_menu # any function which returns boolean to set menu visibility of particular menu item


# create object
app_menu = FlaskMenu(children=[
    dict(
        menu_id='dashboard',
        title='Dashboard',
        icon='dashboard',
        endpoint='main.index',
        is_visible=lambda menu_instance:check_menu(menu_instance),
    ),
    dict(
        menu_id='order_management',
        title='Order Management',
        icon='list',
        is_visible=lambda menu_instance:check_menu(menu_instance),
        children=[
            dict(
                menu_id='order_list',
                title='Orders',
                endpoint='orders.index',
            ),
            dict(
                menu_id='order_create',
                title='Create Order',
                endpoint='orders.create',
                is_visible=lambda menu_instance:check_menu(menu_instance),
            ),
        ],
    ),
])

# load jinja utility extension
app.jinja_env.add_extension('jinja2.ext.do')

# make this object globally available in template context
@app.context_processor
def process_template_context():
    return dict(app_menu=app_menu)