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import { Route, normalize_uri } from "./route.ts";import { ServerRequest, Response } from "./deps.ts";import { errorHandlers } from "./handler.ts";import { loggerError } from "./logger.ts";import { Middleware } from "./middleware.ts";import { Routes } from "./routes.ts";//
async function tryRespond(request: ServerRequest, response: Response) {  try {    await request.respond(response);  } catch (e) {    loggerError(e);  }}
export class Router {  middleware: Middleware = new Middleware();  [k: number]: Routes | undefined  constructor() {    this.middleware = new Middleware();  }  mount(this: this, base: string, routes: Route[]): this {    let index = -1;    for (const route of routes) {      index = route.segments.length;      const routes = this[index] = (this[index] ?? new Routes());      routes.add(base, route);    }    return this;  }
  handler = this.asyncHandler.bind(this);  addMiddleware = this.middleware.add.bind(this.middleware);
  private async asyncHandler(request: ServerRequest): Promise<void> {    // middleware    this.middleware.media = { request };    for await (const result of this.middleware) {      if (result === undefined) return;      if (result !== null) {        tryRespond(request, result);        return;      }    }    // routes    const uri = normalize_uri(request.url.split("?")[0]);    const segments = uri.split("/");    const routes = this[segments.length];    if (routes === undefined) {      errorHandlers.notFound(request);      return;    }    routes.media = { request, segments };    for await (const result of routes) {      if (result === undefined) return;      if (result !== null) {        tryRespond(request, result);        return;      }    }    // not found    errorHandlers.notFound(request);  }}