"""add_promotion_fields_to_bookings

Revision ID: bd309b0742c1
Revises: f1a2b3c4d5e6
Create Date: 2025-11-20 02:16:09.496685

"""
from alembic import op
import sqlalchemy as sa


# revision identifiers, used by Alembic.
revision = 'bd309b0742c1'
down_revision = 'f1a2b3c4d5e6'
branch_labels = None
depends_on = None


def upgrade() -> None:
    # Add promotion-related columns to bookings table
    op.add_column('bookings', sa.Column('original_price', sa.Numeric(10, 2), nullable=True))
    op.add_column('bookings', sa.Column('discount_amount', sa.Numeric(10, 2), nullable=True, server_default='0'))
    op.add_column('bookings', sa.Column('promotion_code', sa.String(50), nullable=True))
    # Add index on promotion_code for faster lookups
    op.create_index(op.f('ix_bookings_promotion_code'), 'bookings', ['promotion_code'], unique=False)


def downgrade() -> None:
    # Remove promotion-related columns
    op.drop_index(op.f('ix_bookings_promotion_code'), table_name='bookings')
    op.drop_column('bookings', 'promotion_code')
    op.drop_column('bookings', 'discount_amount')
    op.drop_column('bookings', 'original_price')