evotraders/frontend/src/services/tradingApi.js

const trimTrailingSlash = (value) => value.replace(/\/+$/, '');
const isLocalDevHost = () => {
  if (typeof window === 'undefined') {
    return false;
  }
  const host = String(window.location.hostname || '').trim().toLowerCase();
  return host === 'localhost' || host === '127.0.0.1';
};

const TRADING_SERVICE_BASE = trimTrailingSlash(import.meta.env.VITE_TRADING_SERVICE_URL || '') || (
  isLocalDevHost() ? 'http://localhost:8001' : ''
);

export function hasDirectTradingService() {
  return Boolean(TRADING_SERVICE_BASE);
}

export async function fetchInsiderTradesDirect(ticker, startDate = null, endDate = null, limit = 50) {
  if (!TRADING_SERVICE_BASE) {
    throw new Error('Direct trading service is not configured');
  }

  const params = new URLSearchParams();
  params.set('ticker', ticker);
  params.set('limit', String(limit));
  if (startDate) {
    params.set('start_date', startDate);
  }
  if (endDate) {
    params.set('end_date', endDate);
  }

  const response = await fetch(`${TRADING_SERVICE_BASE}/api/insider-trades?${params.toString()}`);
  if (!response.ok) {
    throw new Error(await response.text());
  }
  return response.json();
}

export async function fetchStockHistoryDirect(ticker, startDate, endDate) {
  if (!TRADING_SERVICE_BASE) {
    throw new Error('Direct trading service is not configured');
  }

  const params = new URLSearchParams();
  params.set('ticker', ticker);
  params.set('start_date', startDate);
  params.set('end_date', endDate);

  const response = await fetch(`${TRADING_SERVICE_BASE}/api/prices?${params.toString()}`);
  if (!response.ok) {
    throw new Error(await response.text());
  }
  return response.json();
}