import logging

from django.db import models
from wagtail.admin.panels import FieldPanel, TabbedInterface, ObjectList

from core.wagtail_utils import StrictHierarchyPage, get_default_settings
from users.models import SchoolClass
from core.mixins import GraphqlNodeMixin

logger = logging.getLogger(__name__)


class Chapter(StrictHierarchyPage, GraphqlNodeMixin):
    class Meta:
        verbose_name = "Kapitel"
        verbose_name_plural = "Kapitel"

    description = models.TextField(blank=True)

    content_panels = [
        FieldPanel("title", classname="full title"),
        FieldPanel("description", classname="full description"),
    ]

    edit_handler = TabbedInterface(
        [ObjectList(content_panels, heading="Content"), get_default_settings()]
    )

    template = "generic_page.html"

    parent_page_types = ["books.Module"]
    subpage_types = ["books.ContentBlock"]

    title_hidden_for = models.ManyToManyField(
        SchoolClass, related_name="hidden_chapter_titles"
    )
    description_hidden_for = models.ManyToManyField(
        SchoolClass, related_name="hidden_chapter_descriptions"
    )

    @property
    def route(self):
        return f"module/{self.get_parent().slug}#{self.graphql_id}"

    def sync_title_visibility(self, school_class_template, school_class_to_sync):
        if (
            self.title_hidden_for.filter(id=school_class_template.id).exists()
            and not self.title_hidden_for.filter(id=school_class_to_sync.id).exists()
        ):
            self.title_hidden_for.add(school_class_to_sync)

        if (
            self.title_hidden_for.filter(id=school_class_to_sync.id).exists()
            and not self.title_hidden_for.filter(id=school_class_template.id).exists()
        ):
            self.title_hidden_for.remove(school_class_to_sync)

    def sync_description_visibility(self, school_class_template, school_class_to_sync):
        if (
            self.description_hidden_for.filter(id=school_class_template.id).exists()
            and not self.description_hidden_for.filter(
                id=school_class_to_sync.id
            ).exists()
        ):
            self.description_hidden_for.add(school_class_to_sync)

        if (
            self.description_hidden_for.filter(id=school_class_to_sync.id).exists()
            and not self.description_hidden_for.filter(
                id=school_class_template.id
            ).exists()
        ):
            self.description_hidden_for.remove(school_class_to_sync)