feat: added tpv app

tpv/models.py

@@ -0,0 +1,75 @@
+from decimal import Decimal
+from uuid import uuid4
+from django.db import models
+from django.utils.text import gettext_lazy as _
+
+
+def set_default_metadata():
+    return {"items": [], "response": None}
+
+
+class PaymentTPV(models.Model):
+    class StatusChoices(models.TextChoices):
+        PAID = "PAI", _("Pagado")
+        PENDING = "PEN", _("Pendiente")
+        ERROR = "ERR", _("Error")
+
+    hash = models.UUIDField(verbose_name=_("Hash"), default=uuid4, db_index=True)
+
+    status = models.CharField(
+        max_length=3,
+        default=StatusChoices.PENDING,
+        choices=StatusChoices.choices,
+        verbose_name=_("Estado"),
+    )
+    amount = models.DecimalField(
+        max_digits=8,
+        decimal_places=2,
+        default=Decimal("0"),
+        verbose_name=_("Cantidad a pagar"),
+    )
+
+    creation_date = models.DateTimeField(
+        auto_now_add=True, verbose_name=_("Fecha de creación")
+    )
+    last_modification_date = models.DateTimeField(
+        auto_now=True, verbose_name=_("Fecha de última modificación")
+    )
+
+    contact_email = models.EmailField(
+        blank=True, null=True, verbose_name=_("Email de contacto")
+    )
+    observations = models.CharField(
+        max_length=255,
+        default="",
+        blank=True,
+        null=True,
+        verbose_name=_("Observaciones"),
+    )
+
+    metadata = models.JSONField(
+        default=set_default_metadata, verbose_name=_("Metadata")
+    )
+    """
+    Metadata example:
+    {
+        "items": [{
+            "id": 1000,
+            "type": "type",
+            "amount_to_pay": 10.00,
+            "amount_to_pay_int": 1000,
+        }],
+    }
+    """
+
+    def regenerate_uuid(self):
+        self.hash = uuid4()
+        self.save()
+
+    @property
+    def amount_integer(self) -> int:
+        return int(self.amount * 100)
+
+    class Meta:
+        verbose_name = _("Pago de pedido en Redsys")
+        verbose_name_plural = _("Pagos de pedidos en Redsys")