from django.contrib import admin
from django.contrib.auth.admin import UserAdmin as BaseUserAdmin
from django.utils.translation import gettext_lazy as _
from .models import CustomUser


@admin.register(CustomUser)
class CustomUserAdmin(BaseUserAdmin):
    """
    Custom admin panel configuration for CustomUser model.
    """
    
    # Fields to display in the user list
    list_display = ('email', 'first_name', 'last_name', 'is_staff', 'is_active', 'active_until', 'date_joined')
    list_filter = ('is_staff', 'is_superuser', 'is_active', 'active_until', 'date_joined')
    search_fields = ('email', 'first_name', 'last_name')
    ordering = ('-date_joined',)
    
    # Fields to display on the user detail/edit page
    fieldsets = (
        (None, {'fields': ('email', 'password')}),
        (_('Personal info'), {'fields': ('first_name', 'last_name', 'active_until')}),
        (_('Permissions'), {
            'fields': ('is_active', 'is_staff', 'is_superuser', 'groups', 'user_permissions'),
        }),
        (_('Important dates'), {'fields': ('last_login', 'date_joined')}),
    )
    
    # Fields to display when creating a new user
    add_fieldsets = (
        (None, {
            'classes': ('wide',),
            'fields': ('email', 'password1', 'password2', 'first_name', 'last_name', 'active_until', 'is_staff', 'is_active'),
        }),
    )
    
    readonly_fields = ('date_joined', 'last_login')