import uuid
from django.db import models

from tmc.models import CustomTable

import logging

logger = logging.getLogger("root")


def group_based_upload_to(instance, filename):
    logger.info(instance)
    return "files/image/{}/{}/{}".format(
        type(instance).__name__.lower(), instance.id, filename
    )


class Element(models.Model):
    tmc = models.ForeignKey(CustomTable, models.RESTRICT)
    name = models.CharField()
    photoid = models.CharField()
    photo = models.ImageField(null=True, upload_to=group_based_upload_to)
    text = models.TextField(blank=True, null=True)
    
    def __str__(self):
        return f"Element {self.tmc} {self.name}"

class TgItem(models.Model):
    id = models.UUIDField(
        auto_created=True,
        primary_key=True,
        default=uuid.uuid4,
        editable=False,
        unique=True,
    )
    user_id = models.BigIntegerField()
    name = models.CharField(max_length=255, unique_for_month=True)
    created_at = models.DateTimeField(auto_now_add=True)
    updated_at = models.DateTimeField(auto_now=True)
    tmc = models.ManyToManyField(CustomTable)
    element = models.ManyToManyField(Element)

    def __str__(self):
        return f"Tg item {self.id}"