iranian bank gateway added to apps

schedule job for updeing bank status and az iranian bank gateway admin style

backend/azbankgateways/models/enum.py

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+from django.db import models
+from django.utils.translation import gettext_lazy as _
+
+
+class BankType(models.TextChoices):
+    BMI = "BMI", _("BMI")
+    SEP = "SEP", _("SEP")
+    ZARINPAL = "ZARINPAL", _("Zarinpal")
+    IDPAY = "IDPAY", _("IDPay")
+    ZIBAL = "ZIBAL", _("Zibal")
+    BAHAMTA = "BAHAMTA", _("Bahamta")
+    MELLAT = "MELLAT", _("Mellat")
+    PAYV1 = "PAYV1", _("PayV1")
+
+
+class CurrencyEnum(models.TextChoices):
+    IRR = "IRR", _("Rial")
+    IRT = "IRT", _("Toman")
+
+    @classmethod
+    def rial_to_toman(cls, amount):
+        return amount / 10
+
+    @classmethod
+    def toman_to_rial(cls, amount):
+        return amount * 10
+
+
+class PaymentStatus(models.TextChoices):
+    WAITING = "WAITING", _("Waiting")
+    REDIRECT_TO_BANK = "REDIRECT_TO_BANK", _("Redirect to bank")
+    RETURN_FROM_BANK = "RETURN_FROM_BANK", _("Return from bank")
+    CANCEL_BY_USER = "CANCEL_BY_USER", _("Cancel by user")
+    EXPIRE_GATEWAY_TOKEN = "EXPIRE_GATEWAY_TOKEN", _("Expire gateway token")
+    EXPIRE_VERIFY_PAYMENT = "EXPIRE_VERIFY_PAYMENT", _("Expire verify payment")
+    COMPLETE = "COMPLETE", _("Complete")
+    ERROR = "ERROR", _("Unknown error acquired")