"""create scheme_groups table

Revision ID: 20260316_07
Revises: 20260316_06
Create Date: 2026-03-16 16:05:00
"""

from alembic import op
import sqlalchemy as sa


revision = "20260316_07"
down_revision = "20260316_06"
branch_labels = None
depends_on = None


def upgrade() -> None:
    op.create_table(
        "scheme_groups",
        sa.Column("id", sa.BigInteger(), primary_key=True, autoincrement=True),
        sa.Column("group_record_id", sa.String(length=32), nullable=False),
        sa.Column("scheme_id", sa.String(length=32), nullable=False),
        sa.Column("scheme_version_id", sa.String(length=32), nullable=False),
        sa.Column("element_id", sa.String(length=512), nullable=True),
        sa.Column("group_id", sa.String(length=255), nullable=True),
        sa.Column("name", sa.String(length=512), nullable=False),
        sa.Column("classes_raw", sa.Text(), nullable=True),
        sa.Column("created_at", sa.DateTime(timezone=True), server_default=sa.func.now(), nullable=False),
        sa.ForeignKeyConstraint(["scheme_id"], ["schemes.scheme_id"], ondelete="RESTRICT"),
        sa.ForeignKeyConstraint(["scheme_version_id"], ["scheme_versions.scheme_version_id"], ondelete="RESTRICT"),
    )
    op.create_index("ix_scheme_groups_group_record_id", "scheme_groups", ["group_record_id"], unique=True)
    op.create_index("ix_scheme_groups_scheme_id", "scheme_groups", ["scheme_id"], unique=False)
    op.create_index("ix_scheme_groups_scheme_version_id", "scheme_groups", ["scheme_version_id"], unique=False)


def downgrade() -> None:
    op.drop_index("ix_scheme_groups_scheme_version_id", table_name="scheme_groups")
    op.drop_index("ix_scheme_groups_scheme_id", table_name="scheme_groups")
    op.drop_index("ix_scheme_groups_group_record_id", table_name="scheme_groups")
    op.drop_table("scheme_groups")