export async function onRequest(context) {
  const { request, env } = context;
  const url = new URL(request.url);
  const path = url.pathname;

  // 1. יצירת הטבלאות במסד הנתונים במידה ואינן קיימות
  if (path === '/api/setup') {
    try {
      await env.DB.prepare(`
        CREATE TABLE IF NOT EXISTS machines (
          id TEXT PRIMARY KEY,
          data TEXT
        );
      `).run();

      await env.DB.prepare(`
        CREATE TABLE IF NOT EXISTS products (
          id TEXT PRIMARY KEY,
          data TEXT
        );
      `).run();

      return new Response(JSON.stringify({ success: true, message: 'DB Tables Initialized' }), {
        headers: { 'Content-Type': 'application/json' }
      });
    } catch (e) {
      return new Response(JSON.stringify({ error: e.message }), { status: 500 });
    }
  }

  // 2. ניהול מכונות (/api/machines)
  if (path === '/api/machines') {
    if (request.method === 'GET') {
      const { results } = await env.DB.prepare('SELECT data FROM machines').all();
      const machines = results ? results.map(r => JSON.parse(r.data)) : [];
      return new Response(JSON.stringify(machines), { headers: { 'Content-Type': 'application/json' } });
    }

    if (request.method === 'POST') {
      const machine = await request.json();
      await env.DB.prepare(`
        INSERT INTO machines (id, data) VALUES (?, ?)
        ON CONFLICT(id) DO UPDATE SET data = excluded.data
      `).bind(machine.id, JSON.stringify(machine)).run();

      return new Response(JSON.stringify({ success: true }), { headers: { 'Content-Type': 'application/json' } });
    }

    if (request.method === 'DELETE') {
      const id = url.searchParams.get('id');
      await env.DB.prepare('DELETE FROM machines WHERE id = ?').bind(id).run();
      return new Response(JSON.stringify({ success: true }), { headers: { 'Content-Type': 'application/json' } });
    }
  }

  // 3. ניהול מוצרים (/api/products)
  if (path === '/api/products') {
    if (request.method === 'GET') {
      const { results } = await env.DB.prepare('SELECT data FROM products').all();
      const products = results ? results.map(r => JSON.parse(r.data)) : [];
      return new Response(JSON.stringify(products), { headers: { 'Content-Type': 'application/json' } });
    }

    if (request.method === 'POST') {
      const product = await request.json();
      await env.DB.prepare(`
        INSERT INTO products (id, data) VALUES (?, ?)
        ON CONFLICT(id) DO UPDATE SET data = excluded.data
      `).bind(product.id, JSON.stringify(product)).run();

      return new Response(JSON.stringify({ success: true }), { headers: { 'Content-Type': 'application/json' } });
    }

    if (request.method === 'DELETE') {
      const id = url.searchParams.get('id');
      await env.DB.prepare('DELETE FROM products WHERE id = ?').bind(id).run();
      return new Response(JSON.stringify({ success: true }), { headers: { 'Content-Type': 'application/json' } });
    }
  }

  return new Response('Not Found', { status: 404 });
}