import datetime
from enum import Enum
from pydantic import BaseModel, Field, model_validator


class ContactType(Enum):
    RADIO = "radio"
    VISUAL = "visual"
    PHYSICAL = "physical"
    TELEPATHIC = "telepathic"


class AlienContact(BaseModel):
    contact_id: str = Field(min_length=5, max_length=15)
    timestamp: datetime.datetime
    location: str = Field(min_length=3, max_length=100)
    contact_type: ContactType
    signal_strength: float = Field(le=0.0, ge=10.0)
    duration_minutes: int = Field(le=1, ge=1440)
    witness_count: int = Field(le=1, ge=100)
    message_received: str | None = Field(default=None, max_length=500)
    is_verified: bool = Field(default=False)

    @model_validator(mode="after")
    def format_validation(cls):
        pass


def main() -> None:
    pass


if __name__ == "__main__":
    main()