/**
 * Used to parse the .env.development proxy configuration
 */
import type { ProxyOptions } from 'vite';

type ProxyItem = [string, string];

type ProxyList = ProxyItem[];

type ProxyTargetList = Record<string, ProxyOptions & { rewrite: (path: string) => string }>;

const httpsRE = /^https:\/\//;

/**
 * Generate proxy
 * @param list
 */
export function createProxy(list: ProxyList = []) {
  const ret: ProxyTargetList = {};
  for (const [prefix, target] of list) {
    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
      // 如果您secure="true"只允许来自 HTTPS 的请求，则secure="false"意味着允许来自 HTTP 和 HTTPS 的请求。
      ...(isHttps ? { secure: false } : {}),
    };
  }

  return ret;

  // ret
  // {
  //   '/test/api': {
  //     target: 'http://localhost:3080/test/api',
  //     changeOrigin: true,
  //     ws: true,
  //     rewrite: (path) => path.replace(new RegExp(/^\/test/api/), ''),
  //   },
  //   '/upload': {
  //     target: 'http://localhost:8001/upload',
  //     changeOrigin: true,
  //     ws: true,
  //     rewrite: (path) => path.replace(new RegExp(/^\/upload/), ''),
  //   }
  // }
}