"""add organization member support

Revision ID: b61b6b2d83cc
Revises: 0f79356844b5
Create Date: 2025-12-04 12:03:16.548989

"""
from typing import Sequence, Union

from alembic import op
import sqlalchemy as sa


# revision identifiers, used by Alembic.
revision: str = 'b61b6b2d83cc'
down_revision: Union[str, Sequence[str], None] = '0f79356844b5'
branch_labels: Union[str, Sequence[str], None] = None
depends_on: Union[str, Sequence[str], None] = None


def upgrade() -> None:
    """Upgrade schema."""
    # Add member_type column with default 'INDIVIDUAL'
    op.add_column(
        'members',
        sa.Column('member_type', sa.String(length=20), nullable=False, server_default='INDIVIDUAL')
    )

    # Add company_name column (nullable)
    op.add_column(
        'members',
        sa.Column('company_name', sa.String(length=200), nullable=True)
    )

    # Alter first_name to be nullable (SQLite compatible using batch operations)
    with op.batch_alter_table('members', schema=None) as batch_op:
        batch_op.alter_column(
            'first_name',
            existing_type=sa.String(length=100),
            nullable=True
        )


def downgrade() -> None:
    """Downgrade schema."""
    # Remove company_name and member_type columns
    op.drop_column('members', 'company_name')
    op.drop_column('members', 'member_type')

    # Revert first_name to nullable=False
    # Note: This may fail if there are organization members without first_name
    with op.batch_alter_table('members', schema=None) as batch_op:
        batch_op.alter_column(
            'first_name',
            existing_type=sa.String(length=100),
            nullable=False
        )