import type { ProxyOptions } from "vite";

type ProxyItem = [string, string];

type ProxyList = ProxyItem[];

type ProxyTargetList = Record<string, ProxyOptions>;

/**
 * 创建代理，用于解析 .env.development 代理配置
 * @param list
 */
export function createProxy(list: ProxyList = []) {
  const ret: ProxyTargetList = {};
  for (const [prefix, target] of list) {
    const httpsRE = /^https:\/\//;
    const isHttps = httpsRE.test(target);

    // https://github.com/http-party/node-http-proxy#options
    ret[prefix] = {
      target: target,
      changeOrigin: true,
      ws: true,
      rewrite: path => path.replace(new RegExp(`^${prefix}`), ""),
      // https is require secure=false
      ...(isHttps ? { secure: false } : {}),
      configure: (proxy, options) => {
        proxy.on("proxyReq", (proxyReq, req, res, options) => {
          console.log("---------------------------------proxyReq----------------------------------");
          console.log(proxyReq.path);
        });

        proxy.on("proxyRes", (proxyRes, req, res) => {
          console.log("---------------------------------proxyRes----------------------------------");
          console.log("RAW Response from the target", JSON.stringify(proxyRes.headers, null, 2));
        });

        proxy.on("error", function (err, req, res) {
          console.log("error : ", err);
        });
      }
    };
  }
  return ret;
}