"""tree.home_person_id (per-tree default/home person)

Revision ID: c7e1a4f2d3b8
Revises: b3d5f8a1c920
Create Date: 2026-06-07

"""
from collections.abc import Sequence

import sqlalchemy as sa
from alembic import op

revision: str = "c7e1a4f2d3b8"
down_revision: str | None = "b3d5f8a1c920"
branch_labels: str | Sequence[str] | None = None
depends_on: str | Sequence[str] | None = None


def upgrade() -> None:
    op.add_column("trees", sa.Column("home_person_id", sa.Uuid(), nullable=True))
    op.create_foreign_key(
        "fk_trees_home_person_id",
        "trees",
        "persons",
        ["home_person_id"],
        ["id"],
        ondelete="SET NULL",
    )


def downgrade() -> None:
    op.drop_constraint("fk_trees_home_person_id", "trees", type_="foreignkey")
    op.drop_column("trees", "home_person_id")