from django.db import models
from django.utils.translation import gettext_lazy as _
from django.core.validators import MaxValueValidator

# Create your models here.
class Book(models.Model):
    PLAN_TO_READ = 'PLAN'
    READING = 'READING'
    COMPLETED = 'COMPLETED'
    DROPPED = 'DROPPED'
    STATE_CHOICES = [
        (PLAN_TO_READ, _('Plan to Read')),
        (READING, _('Reading')),
        (COMPLETED, _('Completed')),
        (DROPPED, _('Dropped')),
    ]
    note = models.PositiveSmallIntegerField(
            _('note'),
            validators=[
                MaxValueValidator(10)
            ],
            default=0,
            null=True,
            blank=True
        )    
    title = models.CharField(max_length=255)
    author = models.CharField(max_length=255)
    state = models.CharField(
        _('state'),
        max_length=10,
        choices=STATE_CHOICES, 
        default=PLAN_TO_READ,  
        db_index=True
    )
    added_at = models.DateTimeField(auto_now_add=True)
    updated_at = models.DateTimeField(auto_now=True)