"""Add market_prices table for price caching

Revision ID: 003_market_prices
Revises: 002_add_positions
Create Date: 2026-01-20 16:00:00.000000

"""
from alembic import op
import sqlalchemy as sa
from datetime import datetime


# revision identifiers, used by Alembic.
revision = '003_market_prices'
down_revision = '002_add_positions'
branch_labels = None
depends_on = None


def upgrade() -> None:
    # Create market_prices table
    op.create_table(
        'market_prices',
        sa.Column('id', sa.Integer(), nullable=False),
        sa.Column('symbol', sa.String(length=20), nullable=False),
        sa.Column('price', sa.Numeric(precision=20, scale=6), nullable=False),
        sa.Column('fetched_at', sa.DateTime(), nullable=False, default=datetime.utcnow),
        sa.Column('source', sa.String(length=50), default='yahoo_finance'),
        sa.PrimaryKeyConstraint('id')
    )

    # Create indexes
    op.create_index('idx_market_prices_symbol', 'market_prices', ['symbol'], unique=True)
    op.create_index('idx_symbol_fetched', 'market_prices', ['symbol', 'fetched_at'])


def downgrade() -> None:
    op.drop_index('idx_symbol_fetched', table_name='market_prices')
    op.drop_index('idx_market_prices_symbol', table_name='market_prices')
    op.drop_table('market_prices')