from django.db import models

from postgresqleu.invoices.models import InvoicePaymentMethod


class RawNotification(models.Model):
    # This class contains the raw http POSTs of all notifications received
    # from Adyen. They will only end up unconfirmed here if sometihng
    # blows up badly.
    dat = models.DateTimeField(null=False, blank=False, auto_now_add=True, unique=True)
    contents = models.TextField(null=False, blank=False)
    confirmed = models.BooleanField(null=False, default=False)
    paymentmethod = models.ForeignKey(InvoicePaymentMethod, blank=False, null=False, on_delete=models.CASCADE)

    def __str__(self):
        return "%s" % self.dat


class Notification(models.Model):
    receivedat = models.DateTimeField(null=False, blank=False, auto_now_add=True, unique=True)
    rawnotification = models.ForeignKey(RawNotification, null=True, blank=True, on_delete=models.CASCADE)
    eventDate = models.DateTimeField(null=False, blank=False)
    eventCode = models.CharField(max_length=100, null=False, blank=False)
    live = models.BooleanField(null=False)
    success = models.BooleanField(null=False)
    pspReference = models.CharField(max_length=100, null=False, blank=True)
    originalReference = models.CharField(max_length=100, null=False, blank=True)
    merchantReference = models.CharField(max_length=80, null=False, blank=True)
    merchantAccountCode = models.CharField(max_length=100, null=False, blank=True)
    paymentMethod = models.CharField(max_length=50, null=False, blank=True)
    # We ignore the operations field, we're never using it
    reason = models.CharField(max_length=1000, null=False, blank=True)
    amount = models.DecimalField(decimal_places=2, max_digits=20, null=True)

    confirmed = models.BooleanField(null=False, default=False)

    class Meta:
        unique_together = ('pspReference', 'eventCode', 'merchantAccountCode')

    def __str__(self):
        return "%s" % self.receivedat


class Report(models.Model):
    receivedat = models.DateTimeField(null=False, blank=False, auto_now_add=True)
    notification = models.ForeignKey(Notification, null=False, blank=False, on_delete=models.CASCADE)
    url = models.CharField(max_length=1000, null=False, blank=False)
    downloadedat = models.DateTimeField(null=True, blank=True)
    contents = models.TextField(null=True, blank=True)
    processedat = models.DateTimeField(null=True, blank=True)
    paymentmethod = models.ForeignKey(InvoicePaymentMethod, blank=False, null=False, on_delete=models.CASCADE)


class TransactionStatus(models.Model):
    pspReference = models.CharField(max_length=100, null=False, blank=False, unique=True)
    notification = models.ForeignKey(Notification, null=False, blank=False, on_delete=models.CASCADE)
    authorizedat = models.DateTimeField(null=False, blank=False)
    capturedat = models.DateTimeField(null=True, blank=True)
    settledat = models.DateTimeField(null=True, blank=True)
    amount = models.DecimalField(decimal_places=2, max_digits=20, null=False)
    settledamount = models.DecimalField(null=True, decimal_places=2, max_digits=20)
    method = models.CharField(max_length=100, null=True, blank=True)
    notes = models.CharField(max_length=1000, null=True, blank=True)
    accounting_object = models.CharField(max_length=30, null=True, blank=True)
    paymentmethod = models.ForeignKey(InvoicePaymentMethod, blank=False, null=False, on_delete=models.CASCADE)

    def __str__(self):
        return self.pspReference

    class Meta:
        verbose_name_plural = 'Transaction statuses'


class Refund(models.Model):
    receivedat = models.DateTimeField(null=False, blank=False, auto_now_add=True)
    notification = models.ForeignKey(Notification, null=False, blank=False, on_delete=models.CASCADE)
    transaction = models.ForeignKey(TransactionStatus, on_delete=models.CASCADE)
    refund_amount = models.DecimalField(decimal_places=2, max_digits=20, null=False)

    def __str__(self):
        return str(self.refund_amount)


class ReturnAuthorizationStatus(models.Model):
    pspReference = models.CharField(max_length=100, null=False, blank=False, primary_key=True)
    seencount = models.IntegerField(null=False, default=0)


class AdyenLog(models.Model):
    timestamp = models.DateTimeField(null=False, blank=False, auto_now_add=True)
    pspReference = models.CharField(max_length=100, null=False, blank=True)
    message = models.TextField(null=False, blank=False)
    error = models.BooleanField(null=False, blank=False, default=False)
    sent = models.BooleanField(null=False, blank=False, default=False)
    paymentmethod = models.ForeignKey(InvoicePaymentMethod, blank=False, null=False, on_delete=models.CASCADE)