from __future__ import annotations

import re
from dataclasses import dataclass

from app.domain.shared.base_value_object import ValueObject
from app.domain.users.exceptions import InvalidEmail

_EMAIL_RE = re.compile(r"^[^@\s]+@[^@\s]+\.[^@\s]+$")


@dataclass(frozen=True)
class Email(ValueObject):
    value: str

    def __post_init__(self) -> None:
        if not _EMAIL_RE.match(self.value):
            raise InvalidEmail(f"Invalid email: {self.value}")

    def __str__(self) -> str:
        return self.value