nextjs-app/src/lib/api-client.ts

/**
 * Hugging Face ML API Client
 * Python FastAPI Backend ile iletişim kurar
 */

import { API_BASE } from '@/lib/runtime-config';
import { fetchJson } from '@/lib/http';

class ApiClient {
  /**
   * Hisse senedi verilerini getir
   */
  async getStockData(symbol: string, period = '1y', interval = '1d') {
    const url = `${API_BASE}/api/stock-data?symbol=${symbol}&period=${period}&interval=${interval}`;
    
    try {
      return await fetchJson<Record<string, unknown>>(url, { method: 'GET' }, { timeoutMs: 45000, retries: 2 });
    } catch (error) {
      console.error('getStockData error:', error);
      throw error;
    }
  }

  /**
   * ML tahminlerini getir
   */
  async getMLPredictions(symbols: string[], daysAhead = 5, model = 'ensemble') {
    const url = `${API_BASE}/api/ml-predictions`;
    
    try {
      return await fetchJson<Record<string, unknown>>(
        url,
        { method: 'POST' },
        { timeoutMs: 30000, retries: 0, jsonBody: { symbols, days_ahead: daysAhead, model } }
      );
    } catch (error) {
      console.error('getMLPredictions error:', error);
      throw error;
    }
  }

  /**
   * Teknik analiz getir
   */
  async getTechnicalAnalysis(symbol: string) {
    const url = `${API_BASE}/api/technical-analysis?symbol=${symbol}`;
    
    try {
      return await fetchJson<Record<string, unknown>>(url, { method: 'GET' }, { timeoutMs: 45000, retries: 2 });
    } catch (error) {
      console.error('getTechnicalAnalysis error:', error);
      throw error;
    }
  }

  /**
   * Piyasa özetini getir
   */
  async getMarketOverview() {
    const url = `${API_BASE}/api/market-overview`;
    
    try {
      return await fetchJson<Record<string, unknown>>(url, { method: 'GET' }, { timeoutMs: 45000, retries: 2 });
    } catch (error) {
      console.error('getMarketOverview error:', error);
      throw error;
    }
  }
}

export const apiClient = new ApiClient();
export default apiClient;