from django.db import models
from core.models import Category, Company


class CpuArchitecture(Category):

    class Meta:
        verbose_name_plural = "CPU Architectures"


class CpuManufacturer(Company):

    class Meta:
        verbose_name_plural = "CPU Manufacturers"


class Cpu(models.Model):
    name = models.CharField(max_length=50)
    manufacturer = models.ForeignKey(CpuManufacturer, on_delete=models.CASCADE)
    number_of_cores = models.IntegerField(null=True, blank=True)
    frequency = models.FloatField(null=True, blank=True)
    architecture = models.ForeignKey(CpuArchitecture, models.SET_NULL,
                                     blank=True, null=True, )
    hyper_threading = models.BooleanField()

    def __str__(self):
        return self.name

    class Meta:
        verbose_name_plural = "CPUs"