from django.db import models
from django.utils.encoding import force_text
from django.conf import settings


class Item(models.Model):
    isbn = models.CharField(max_length=100, blank=True, null=True)
    serial_number = models.CharField(max_length=100, blank=True, null=True)
    ITEM_TYPES = (
        (0, 'Book'),
        (1, 'Apparel'),
        (2, 'Gadget'),
        (3, 'Furniture'),
    )
    item_type = models.IntegerField(choices=ITEM_TYPES, default=0)
    title = models.CharField(max_length=200)
    creator = models.CharField(max_length=200, blank=True, null=True)
    creator_sort_last_name = models.CharField(max_length=200, blank=True, null=True)
    creator_sort_first_name = models.CharField(max_length=200, blank=True, null=True)
    current_price = models.DecimalField(max_digits=8, decimal_places=2, blank=True, null=True)
    retail_price = models.DecimalField(max_digits=8, decimal_places=2, blank=True, null=True)
    purchase_price = models.DecimalField(max_digits=8, decimal_places=2, blank=True, null=True)
    amazon_url = models.CharField(max_length=400, blank=True, null=True)
    image_url = models.CharField(max_length=400, blank=True, null=True)
    image = models.FileField(upload_to='stuff/', null=True, blank=True)
    item_format = models.CharField(max_length=255, blank=True, null=True)
    date_released = models.DateTimeField(blank=True, null=True)
    date_purchased = models.DateTimeField(blank=True, null=True)
    date_added = models.DateTimeField(blank=True, null=True)

    class Meta:
        ordering = ['-date_added']

    def __str__(self):
        return self.title

    def get_image_url(self):
        return '%s%s' % (settings.MEDIA_URL, self.image)

    def admin_thumbnail(self):
        return force_text('<a href=""><img src="%s" width="100" style="width:100px"></a>' % (self.get_image_url()))
    admin_thumbnail.allow_tags = True
    admin_thumbnail.short_description = 'Thumbnail'