const yahooFinance = require('yahoo-finance2').default;

async function getCurrentPrice(ticker) {
  const quote = await yahooFinance.quote(ticker);
  return quote.regularMarketPrice;
}

async function getHistoricalPrices(ticker, range) {
  const now = new Date();
  let days;
  switch (range) {
    case 'daily': days = 1; break;
    case 'weekly': days = 7; break;
    case 'monthly': days = 30; break;
    case '3m': days = 90; break;
    case '6m': days = 180; break;
    case '1y': days = 365; break;
    case '3y': days = 365 * 3; break;
    case '5y': days = 365 * 5; break;
    default: days = 30;
  }
  const from = new Date(now.getTime() - days * 24 * 60 * 60 * 1000);
  const options = { period1: from, period2: now, interval: '1d' };
  const result = await yahooFinance.historical(ticker, options);
  // Return array of { date, price }
  return result.map(item => ({ date: item.date, price: item.close }));
}

module.exports = {
  getCurrentPrice,
  getHistoricalPrices,
};