feat(user): adds registration logic and validation

app/services/user_service.py

@@ -0,0 +1,39 @@
+from werkzeug.datastructures import ImmutableMultiDict
+from flask import flash
+from app.models.user import User
+from app.extensions import db
+from app.utils.alert_type import AlertType
+from app.utils.errors.users.user_register_errors import UserRegisterErrors
+from app.utils.flash_message import FlashMessage
+from app.utils.validators import UserValidators
+class UserService:
+  
+  @staticmethod
+  def register_user(form: ImmutableMultiDict):
+    try:
+      name: str = UserValidators.is_valid_user_name(form.get("name"))
+      lastname: str = UserValidators.is_valid_user_name(form.get("lastname"),True)
+      birth_date = UserValidators.is_valid_birth_date(form.get("birthdate"))
+      phone_number: str = UserValidators.is_valid_phone_number(form.get("phonenumber"))
+      email: str = UserValidators.is_valid_email(form.get("email"))
+      password: str = form.get("password")
+      password_confirmation: str = form.get("password_confirmation")
+      address: str = UserValidators.is_valid_address(form.get("address"))
+      
+      new_user = User(
+        username="test", 
+        name=name, 
+        lastname=lastname, 
+        email=email, 
+        password=UserValidators.passwords_match(password, password_confirmation),
+        birth_date= birth_date,
+        address=address,
+        phone_number=phone_number
+      )
+
+      db.session.add(new_user)
+      db.session.commit()
+      db.session.flush()
+    except UserRegisterErrors as e:
+      flash(FlashMessage(e.message, AlertType.DANGER.value ))
+      db.session.rollback()