from pydantic import BaseModel, ConfigDict, Field
from typing import Literal, Optional
from datetime import datetime


class EventInvitationCreate(BaseModel):
    model_config = ConfigDict(extra="forbid")
    user_ids: list[int] = Field(..., min_length=1, max_length=20)


class EventInvitationRespond(BaseModel):
    model_config = ConfigDict(extra="forbid")
    status: Literal["accepted", "tentative", "declined"]


class EventInvitationOverrideCreate(BaseModel):
    model_config = ConfigDict(extra="forbid")
    status: Literal["accepted", "tentative", "declined"]


class EventInvitationResponse(BaseModel):
    model_config = ConfigDict(from_attributes=True)
    id: int
    event_id: int
    user_id: int
    invited_by: Optional[int]
    status: str
    invited_at: datetime
    responded_at: Optional[datetime]
    invitee_name: Optional[str] = None
    invitee_umbral_name: Optional[str] = None