from django.db import models


class TimeStampedModel(models.Model):
    created_at = models.DateTimeField(auto_now_add=True)
    updated_at = models.DateTimeField(auto_now=True)

    class Meta:
        abstract = True


class Visibility(models.TextChoices):
    INTERNAL = "internal", "Internal"
    ADMIN = "admin", "Admin / Management Only"
    INVESTOR = "investor", "Authorized Investors"
    PUBLIC = "public", "Public Website"


class Currency(models.TextChoices):
    BDT = "BDT", "Bangladeshi Taka"
    USD = "USD", "US Dollar"