/**
 * SQL expression for foil-aware unit price on user-owned rows.
 *
 * @param {{ cardAlias?: string, userCardAlias?: string }} [options]
 * @returns {string}
 */
export function effectiveUnitPriceExpr({ cardAlias = 'c', userCardAlias = 'uc' } = {}) {
  return `CASE WHEN ${userCardAlias}.is_foil THEN ${cardAlias}.market_price ELSE COALESCE(${cardAlias}.current_price, ${cardAlias}.market_price) END`;
}

/**
 * SQL expression for list/catalog unit price (no per-row foil flag on collection_cards).
 *
 * @param {{ cardAlias?: string }} [options]
 * @returns {string}
 */
export function listUnitPriceExpr({ cardAlias = 'c' } = {}) {
  return `COALESCE(${cardAlias}.current_price, ${cardAlias}.market_price)`;
}