import 'dotenv/config';
import express from 'express';
import cors from 'cors';
import path from 'path';
import { fileURLToPath } from 'url';
import fetch from 'node-fetch';

const app = express();
app.use(cors());
app.use(express.json());

const __filename = fileURLToPath(import.meta.url);
const __dirname = path.dirname(__filename);

// Serve static frontend
app.use(express.static(path.join(__dirname, 'public')));

// (Mock data routes removed)

// eBay completed (sold) listings search
app.get('/api/ebay/search', async (req, res) => {
  try {
    const { player, team, manufacturer, page = 1 } = req.query;
    const appId = process.env.EBAY_APP_ID;
    if (!appId) {
      return res.status(500).json({ error: 'Server missing EBAY_APP_ID environment variable' });
    }
    const name = String(player || '').trim();
    if (!name) return res.status(400).json({ error: 'Missing required "player" query param' });

    const keywords = [name, team, manufacturer].filter(Boolean).join(' ');

    const params = new URLSearchParams({
      'OPERATION-NAME': 'findCompletedItems',
      'SERVICE-VERSION': '1.13.0',
      'SECURITY-APPNAME': appId,
      'RESPONSE-DATA-FORMAT': 'JSON',
      keywords,
      'paginationInput.entriesPerPage': '24',
      'paginationInput.pageNumber': String(page),
      'sortOrder': 'EndTimeSoonest',
      'outputSelector': 'PictureURLLarge'
    });
    // item filters
    params.append('itemFilter(0).name', 'SoldItemsOnly');
    params.append('itemFilter(0).value', 'true');
    params.append('GLOBAL-ID', 'EBAY-US');

    const url = `https://svcs.ebay.com/services/search/FindingService/v1?${params.toString()}`;
    const resp = await fetch(url);
    if (!resp.ok) {
      const text = await resp.text();
      return res.status(502).json({ error: 'eBay API error', detail: text });
    }
    const data = await resp.json();
    const root = (data && data.findCompletedItemsResponse && data.findCompletedItemsResponse[0]) || {};
    const items = ((root.searchResult && root.searchResult[0] && root.searchResult[0].item) || []).map((it) => {
      const title = it.title?.[0] || '';
      const url = it.viewItemURL?.[0] || '';
      const image = (it.pictureURLLarge?.[0] || it.galleryURL?.[0] || '');
      const price = it.sellingStatus?.[0]?.currentPrice?.[0]?.__value__ || null;
      const currency = it.sellingStatus?.[0]?.currentPrice?.[0]?.['@currencyId'] || null;
      const ended = it.listingInfo?.[0]?.endTime?.[0] || null;
      return { title, url, image, price, currency, ended };
    });

    res.json({ results: items });
  } catch (err) {
    console.error('eBay search error', err);
    res.status(500).json({ error: 'Internal server error' });
  }
});

// Fallback to index.html for root
app.get('/', (_req, res) => {
  res.sendFile(path.join(__dirname, 'public', 'index.html'));
});

const PORT = process.env.PORT || 3000;
app.listen(PORT, () => {
  console.log(`Baseball Cards Search running on http://localhost:${PORT}`);
});