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import { AppMiddleware, MiddlewareArgument, Router } from "./types.ts";
export function middleware() {  const middlewares: AppMiddleware[] = [];
  function isRegex(regexPath: MiddlewareArgument) {    return regexPath instanceof RegExp;  }
  function isString(path: MiddlewareArgument) {    return typeof path === "string";  }
  function isRouter(element: Router) {    return element.routes !== undefined;  }
  function isContainRouter(array: MiddlewareArgument[]) {    for (let index = 0; index < array.length; index++) {      const element = array[index];      const yes = isRouter(<Router> element);      if (yes) return true;    }    return false;  }
  function useMiddleware(...array: MiddlewareArgument[]) {    const [first, ...rest] = array;    let path: RegExp | string = "/.*";    let appMiddlewares = rest;    let type = "";
    if (isRegex(first)) {      path = <RegExp> first;    } else if (isString(first)) {      path = <string> first;    } else {      appMiddlewares = array;    }
    if (isContainRouter(rest)) {      type = "router";    }
    middlewares.push({ path, middlewares: appMiddlewares, type });  }
  return {    useMiddleware,    middlewares,  };}