import uuid
from datetime import date, datetime

from pydantic import BaseModel, ConfigDict


class EventCreate(BaseModel):
    event_type: str
    # Exactly one subject: a person or a partnership (relationship).
    person_id: uuid.UUID | None = None
    relationship_id: uuid.UUID | None = None
    place_id: uuid.UUID | None = None
    # Verbatim date string (e.g. "ABT 1850") and/or a normalized range.
    date_value: str | None = None
    date_start: date | None = None
    date_end: date | None = None
    date_precision: str | None = None
    calendar: str = "gregorian"
    detail: str | None = None
    notes: str | None = None


class EventUpdate(BaseModel):
    # All optional; only fields explicitly sent are changed (PATCH semantics).
    event_type: str | None = None
    place_id: uuid.UUID | None = None
    date_value: str | None = None
    date_start: date | None = None
    date_end: date | None = None
    date_precision: str | None = None
    calendar: str | None = None
    detail: str | None = None
    notes: str | None = None


class EventRead(BaseModel):
    model_config = ConfigDict(from_attributes=True)

    id: uuid.UUID
    tree_id: uuid.UUID
    event_type: str
    person_id: uuid.UUID | None
    relationship_id: uuid.UUID | None
    place_id: uuid.UUID | None
    date_value: str | None
    date_start: date | None
    date_end: date | None
    date_precision: str | None
    calendar: str
    detail: str | None
    notes: str | None
    created_at: datetime