from django.db import models


class Tipo(models.Model):
    tipo = models.TextField(max_length=10)

    def __str__(self):
        return self.tipo


class Cuenta(models.Model):
    nombre = models.TextField(max_length=20)
    saldo_inicial = models.DecimalField(max_digits=10, decimal_places=2, null=True, blank=True)
    saldo_actual = models.DecimalField(max_digits=10, decimal_places=2, null=True, blank=True)
    tipo = models.ForeignKey(Tipo, on_delete=models.CASCADE)

    def __str__(self):
        return self.nombre


class Apunte(models.Model):
    fecha = models.DateField()
    cta_origen = models.ForeignKey(Cuenta, on_delete=models.CASCADE, related_name='origen')
    cta_destino = models.ForeignKey(Cuenta, on_delete=models.CASCADE, related_name='destino')
    importe = models.DecimalField(max_digits=10, decimal_places=2)
    concepto = models.TextField(max_length=30)

    def __str__(self):
        return self.fecha