// src/proxy.js — Manual proxy support (no external fetch)
// HF Spaces Secrets-এ PROXY_LIST দাও: "ip1:port1,ip2:port2"

let proxyList = process.env.PROXY_LIST
  ? process.env.PROXY_LIST.split(",").map((p) => p.trim()).filter(Boolean)
  : [];

let currentIndex = 0;

// Round-robin
function getNextProxy() {
  if (!proxyList.length) return null;
  const proxy = `http://${proxyList[currentIndex % proxyList.length]}`;
  currentIndex++;
  return proxy;
}

function removeCurrentProxy() {
  if (!proxyList.length) return;
  const idx = (currentIndex - 1 + proxyList.length) % proxyList.length;
  proxyList.splice(idx, 1);
  console.log(`🗑️ Proxy removed. Remaining: ${proxyList.length}`);
}

function getStats() {
  return {
    total: proxyList.length,
    active: currentIndex % Math.max(proxyList.length, 1),
  };
}

// No-op — external fetch নেই
async function fetchProxies() {}

module.exports = { fetchProxies, getNextProxy, removeCurrentProxy, getStats };