from django.urls import reverse
from django.conf import settings

class BsNavBarItem():
    link = ''
    name = ''
    active = True
    
    def __init__(self, name, link, active):
        self.link = link
        self.name = name
        self.active = active

    def active_class(self):
        if self.active:
            return "active"
        else:
            return ""

    def __str__(self):
        return self.name

class NavBar():

    brand = ''
    navitems = []
    
    has_user = False
    username = ''
    show_admin = False

    @staticmethod
    def get_navbar(active_entry, user = None):
        items = {
            'Main': BsNavBarItem('Main', reverse('parts-main'), False),
            'Components':BsNavBarItem('Components', reverse('parts-components'), False),
            'Stocks':BsNavBarItem('Stocks', reverse('parts-stocks'), False),
        }

        try:
            items[active_entry].active = True
        except:
            pass

        navitems = [
            items['Main'],
            items['Components'],
            items['Stocks'],
            #items['Login'],
        ]
        nb = NavBar()
        nb.has_user = False
        nb.show_admin = False
        if user is not None:
            if user.is_authenticated:
              nb.has_user = True
              nb.username = user.username
              if user.is_superuser:
                  nb.show_admin = True
       
        nb.navitems = navitems
        nb.brand = NavBar.get_brand()

        return nb

    @staticmethod
    def get_brand():
        return getattr(settings, "SHIMATTA_KENKYUSHO_TITLE", 'Lab System')