"""Remove Nextcloud-specific columns from members and bands.

Prior to this migration, storage credentials lived directly on the Member
and Band rows. They are now in the band_storage table (migration 0007),
encrypted at the application layer.

Run 0007 first; if you still need to migrate existing data, do it in a
separate script before applying this migration.

Revision ID: 0008_drop_nc_columns
Revises: 0007_band_storage
Create Date: 2026-04-10
"""

from alembic import op
import sqlalchemy as sa

revision = "0008_drop_nc_columns"
down_revision = "0007_band_storage"
branch_labels = None
depends_on = None


def upgrade() -> None:
    # Drop Nextcloud credential columns from members
    op.drop_column("members", "nc_url")
    op.drop_column("members", "nc_username")
    op.drop_column("members", "nc_password")

    # Drop Nextcloud-specific columns from bands
    op.drop_column("bands", "nc_folder_path")
    op.drop_column("bands", "nc_user")


def downgrade() -> None:
    # Restore columns (data is lost — this is intentional)
    op.add_column("bands", sa.Column("nc_user", sa.String(255), nullable=True))
    op.add_column("bands", sa.Column("nc_folder_path", sa.Text, nullable=True))

    op.add_column("members", sa.Column("nc_password", sa.Text, nullable=True))
    op.add_column("members", sa.Column("nc_username", sa.String(255), nullable=True))
    op.add_column("members", sa.Column("nc_url", sa.Text, nullable=True))