"""Модели карточки региона."""
from datetime import datetime

from sqlalchemy import DateTime, ForeignKey, Integer, String, func
from sqlalchemy.orm import Mapped, mapped_column

from app.db.session import Base
from app.models.enums import LinkType
from app.models.types import enum_col


class RegionCard(Base):
    __tablename__ = "region_cards"

    region_id: Mapped[int] = mapped_column(ForeignKey("regions.id", ondelete="CASCADE"), primary_key=True)
    population: Mapped[int | None] = mapped_column(Integer)
    head_user_id: Mapped[int | None] = mapped_column(ForeignKey("users.id"))
    updated_at: Mapped[datetime] = mapped_column(
        DateTime(timezone=True), server_default=func.now(), onupdate=func.now()
    )


class RegionLink(Base):
    __tablename__ = "region_links"

    id: Mapped[int] = mapped_column(primary_key=True)
    region_id: Mapped[int] = mapped_column(ForeignKey("regions.id", ondelete="CASCADE"))
    type: Mapped[LinkType] = mapped_column(enum_col(LinkType))
    title: Mapped[str | None] = mapped_column(String(200))
    url: Mapped[str] = mapped_column(String(500))
    created_at: Mapped[datetime] = mapped_column(DateTime(timezone=True), server_default=func.now())
    updated_at: Mapped[datetime] = mapped_column(
        DateTime(timezone=True), server_default=func.now(), onupdate=func.now()
    )


class RegionCardHistory(Base):
    __tablename__ = "region_card_history"

    id: Mapped[int] = mapped_column(primary_key=True)
    region_id: Mapped[int] = mapped_column(ForeignKey("regions.id", ondelete="CASCADE"))
    field: Mapped[str] = mapped_column(String(100))
    old_value: Mapped[str | None] = mapped_column(String(1000))
    new_value: Mapped[str | None] = mapped_column(String(1000))
    changed_by: Mapped[int | None] = mapped_column(ForeignKey("users.id"))
    changed_at: Mapped[datetime] = mapped_column(DateTime(timezone=True), server_default=func.now())