import os.path
import uuid

from django.conf import settings
from django.db import models
from django.utils.translation import gettext_lazy as _

from common.db.models import JMSBaseModel
from ops.exception import PlaybookNoValidEntry


class Playbook(JMSBaseModel):
    id = models.UUIDField(default=uuid.uuid4, primary_key=True)
    name = models.CharField(max_length=128, verbose_name=_('Name'), null=True)
    path = models.FileField(upload_to='playbooks/')
    creator = models.ForeignKey('users.User', verbose_name=_("Creator"), on_delete=models.SET_NULL, null=True)
    comment = models.CharField(max_length=1024, default='', verbose_name=_('Comment'), null=True, blank=True)

    @property
    def entry(self):
        work_dir = os.path.join(settings.DATA_DIR, "ops", "playbook", self.id.__str__())
        valid_entry = ('main.yml', 'main.yaml', 'main')
        for f in os.listdir(work_dir):
            if f in valid_entry:
                return os.path.join(work_dir, f)
        raise PlaybookNoValidEntry