"""create orders table

Revision ID: b2c3d4e5f6g7
Revises: 
Create Date: 2024-01-11 10:00:00.000000
"""
from alembic import op
import sqlalchemy as sa
from sqlalchemy.dialects import postgresql

# revision identifiers
revision = 'b2c3d4e5f6g7'
down_revision = None
branch_labels = None
depends_on = None

def upgrade():
    op.create_table(
        'orders',
        sa.Column('id', sa.String(), primary_key=True, server_default=sa.text('uuid_generate_v4()')),
        sa.Column('order_number', sa.String(), nullable=False),
        sa.Column('customer_id', sa.String(), nullable=True),
        sa.Column('total_amount', sa.Numeric(10, 2), nullable=True),
        sa.Column('status', sa.String(), nullable=False, server_default='pending'),
        sa.Column('shipping_address', sa.String(), nullable=False),
        sa.Column('payment_status', sa.String(), nullable=False, server_default='unpaid'),
        sa.Column('created_at', sa.DateTime(), server_default=sa.func.now()),
        sa.Column('updated_at', sa.DateTime(), server_default=sa.func.now(), onupdate=sa.func.now()),
        sa.ForeignKeyConstraint(['customer_id'], ['users.id'], ),
        sa.PrimaryKeyConstraint('id')
    )
    
    op.create_index('ix_orders_order_number', 'orders', ['order_number'], unique=True)

def downgrade():
    op.drop_index('ix_orders_order_number', 'orders')
    op.drop_table('orders')