initial commit

core/apps/companies/validators/__init__.py

@@ -0,0 +1,3 @@
+from .accounts import *  # noqa
+from .companies import *  # noqa
+from .folders import *  # noqa

core/apps/companies/validators/accounts.py

@@ -0,0 +1,10 @@
+# from django.core.exceptions import ValidationError
+from django_core.models.base import AbstractBaseModel  # type: ignore
+
+
+class CompanyAccountValidator:
+    def __init__(self, instance: AbstractBaseModel):
+        self.instance = instance
+
+    def __call__(self):
+        return True

core/apps/companies/validators/companies.py

@@ -0,0 +1,62 @@
+from django.core.exceptions import ValidationError
+from django.core.validators import RegexValidator
+from django_core.models.base import AbstractBaseModel  # type: ignore
+
+from django.utils.translation import gettext_lazy as _
+
+
+phone_validator = RegexValidator(
+    regex=r'^\+?[1-9]\d{1,14}$',
+    message=_(
+        "Enter a valid international phone number "
+        "(E.164 format, e.g., +14155552671)."
+    )
+)
+
+iin_validator = RegexValidator(
+    regex=r'^\d{14}$',
+    message=_("IIN code must be exactly 14 digits.")
+)
+
+pinfl_validator = RegexValidator(
+    regex=r'^\d{14}$',
+    message=_("PINFL code must be exactly 14 digits.")
+)
+
+iik_validator = RegexValidator(
+    regex=r'^[A-Z0-9]{10,30}$',
+    message=_(
+        "IIK code must be alphanumeric and " \
+        "between 10 and 30 characters."
+    ),
+)
+
+name_validator = RegexValidator(
+    regex=r'^[A-Za-z0-9\s\.\-\,\&]+$',
+    message=_("Company name contains invalid characters.")
+)
+
+
+class CompanyValidator:
+    def __init__(self, instance: AbstractBaseModel):
+        self.instance = instance
+
+    def __call__(self):
+        if (
+            self.instance.iin_code is None  # type: ignore
+            and self.instance.pinfl_code is None  # type: ignore
+        ):  
+            
+            raise ValidationError(_(
+                "Either IIN code or PINFL " \
+                "code must be provided."
+            ))
+        
+        if (
+            self.instance.iin_code is not None  # type: ignore
+            and self.instance.pinfl_code is not None  # type: ignore
+        ): 
+            raise ValidationError(_(
+                "One of IIN code and PINFL "
+                "code must be None"
+            ))

core/apps/companies/validators/folders.py

@@ -0,0 +1,10 @@
+# from django.core.exceptions import ValidationError
+from django_core.models.base import AbstractBaseModel  # type: ignore
+
+
+class CompanyFolderValidator:
+    def __init__(self, instance: AbstractBaseModel): 
+        self.instance = instance
+
+    def __call__(self):
+        return