export default {
  async fetch(request, env, ctx) {
    const SUPABASE_URL = "https://keconnxfdpzbzaqnfzbf.supabase.co";
    const SUPABASE_KEY = "sb_publishable_OOI7_AHgE_yIekROJttAkg_quvInzO6";

    const url = new URL(request.url);
    const action = url.searchParams.get('action');
    
    let responseData = { success: false, message: "Invalid action" };

    const headers = {
      'apikey': SUPABASE_KEY,
      'Authorization': `Bearer ${SUPABASE_KEY}`,
      'Content-Type': 'application/json',
      'Prefer': 'return=representation'
    };

    try {
      if (action === 'login') {
        const username = url.searchParams.get('username');
        const password = url.searchParams.get('password');
        
        const tkRes = await fetch(`${SUPABASE_URL}/rest/v1/taikhoan?username=eq.${username}&password=eq.${password}&select=*`, {
          method: 'GET',
          headers: headers
        });
        const tkData = await tkRes.json();
        
        if (!tkData || tkData.length === 0) {
          responseData = { success: false, message: "Số điện thoại hoặc mật khẩu không đúng!" };
        } else {
          let userRecord = tkData[0];
          let customerName = userRecord.hoten || userRecord.HoTen || userRecord.HOTEN || "Hồ Ánh Hồng";
          
          responseData = {
            success: true,
            tenTaiKhoan: customerName,
            danhSachMaKH: [
              { makh: "GL00123", tenkh: customerName, diachi: "67/1 Hẻm 67 - Hoàng Văn Thụ, Pleiku, Gia Lai" }
            ]
          };
        }
      }
    } catch (err) {
      responseData = { success: false, error: err.toString() };
    }

    return new Response(JSON.stringify(responseData), {
      headers: {
        'Content-Type': 'application/json;charset=UTF-8',
        'Access-Control-Allow-Origin': '*',
        'Access-Control-Allow-Methods': 'GET, POST, OPTIONS',
        'Access-Control-Allow-Headers': 'Content-Type'
      }
    });
  }
};