import os

from django.db import models
from django.utils.translation import gettext_lazy as _
from rules import always_allow
from rules.contrib.models import RulesModel

from outbo.apps.core.models import TimestampableDeletableMixin


def filename(self, filename):
    return "/".join(
        (
            "projects",
            self.item.brief.product.project.slug[1:],
            "photobriefing",
            filename,
        )
    )


class BriefItemPhoto(TimestampableDeletableMixin, RulesModel):
    class Meta:
        rules_permissions = {
            "view": always_allow,
        }

    item = models.ForeignKey(
        verbose_name=_("brief item"),
        to="BriefItem",
        on_delete=models.CASCADE,
        related_name="photos",
        related_query_name="photo",
    )

    file = models.ImageField(verbose_name=_("file"), upload_to=filename)

    @property
    def filename(self):
        return os.path.basename(self.file.name)