from django.db import models

from modelcluster.fields import ParentalKey

from wagtail.core.models import Page, Orderable
from wagtail.core.fields import RichTextField
from wagtail.admin.edit_handlers import FieldPanel, InlinePanel
from wagtail.images.edit_handlers import ImageChooserPanel
from wagtail.search import index


class Katalog(Page):
    parent_page_types = ['home.HomePage', ]
    subpage_types = ['Kniha', ]


class Kniha(Page):
    podnadpis = models.CharField(max_length=128, verbose_name='Podnadpis', null=True, blank=True)
    datum_vydani = models.DateField("Datum vydání")
    autor = models.CharField(max_length=128, verbose_name='Autor')
    anotace = RichTextField(blank=True)
    obrazek = models.ForeignKey('wagtailimages.Image', on_delete=models.PROTECT, related_name='+')

    parent_page_types = ['Katalog', ]

    search_fields = Page.search_fields + [
        index.SearchField('anotace'),
    ]

    content_panels = Page.content_panels + [
        FieldPanel('podnadpis'),
        FieldPanel('autor'),
        FieldPanel('datum_vydani'),
        FieldPanel('anotace', classname="full"),
        ImageChooserPanel('obrazek'),
    ]