from django.db import models

import uuid

class Wishlist(models.Model):

    name = models.CharField(max_length=255)
    description = models.TextField()
    created_at = models.DateTimeField(auto_now_add=True)
    updated_at = models.DateTimeField(auto_now=True)
    external_id = models.UUIDField(unique=True, default=uuid.uuid4, editable=False)

    @staticmethod
    def create(name, description):
        w = Wishlist()
        w.name = name
        w.description = description
        w.save()
        return w

class Item(models.Model):

    wishlist = models.ForeignKey(Wishlist, related_name='items')
    name = models.CharField(max_length=255)
    description = models.TextField()
    created_at = models.DateTimeField(auto_now_add=True)
    updated_at = models.DateTimeField(auto_now=True)
    picture = models.ImageField(null=True)
    numbers_available = models.IntegerField(default=1)
    number_of_parts = models.IntegerField(null=True)
    estimated_price = models.DecimalField(max_digits=19, decimal_places=2,
                                            null=True)

    @staticmethod
    def create(name, description, wishlist):
        i = Item()
        i.name = name
        i.description = description
        i.wishlist = wishlist
        i.save()
        return i

class Part(models.Model):
    pass