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// Copyright 2022 Parthka. All rights reserved. MIT license.
import { serve, serveTls } from "https://deno.land/std@0.140.0/http/server.ts";import { Router } from "./router.ts";import { Req, Res, Routes } from "./types.ts";
/** A class which registers router. */class WebApp {  public routes: Routes[] = []; // all routes  private dHeaders: Record<string, string> = {}; // default headers  private allowME = false; // more Exp var
  /** default 404 status code handler */  private hand404 = (_: Req, res: Res): void => {    res.reply = JSON.stringify({      status: 404,      massage: "Route Not Found",    });    res.headers = {      "Content-Type": "application/json",    };  };
  /** default 500 status code handler */  private hand500 = (_: Req, res: Res): void => {    res.reply = JSON.stringify({      status: 500,      massage: "Internal Server Error",    });    res.headers = {      "Content-Type": "application/json",    };  };
  /** Set default headers */  public headers = (headers: Record<string, string>) => this.dHeaders = headers;
  /** set more path Exp */  public allowMoreExp = (allow: boolean) => this.allowME = allow;
  /** set routes */  public set = async (r: Router) => {    this.routes = await r.getRoutes(this.allowME); // set all routes  };
  /** set 404 error handler */  public set404 = (hand: (req: Req, res: Res) => void) => {    this.hand404 = hand;  };
  /** set 500 error handler */  public set500 = (hand: (req: Req, res: Res) => void) => {    this.hand500 = hand;  };
  /** main handler */  private hand = async (req: Request): Promise<Response> => {    const url = new URL(req.url);
    let is404 = true;
    const res: Res = {      reply: "",      headers: {},      status: 200,    };
    const r: Req = { state: {} };
    // check all routes to client path    for (const ele of this.routes) {      if (        url.pathname.match(ele.reg) &&        (ele.method === req.method || ele.method === "ALL")      ) {        is404 = false; // if path found than not call 404
        if (req.body) {          r.body = await req.text(); // get client body        }
        r.headers = req.headers; // set headers        r.method = req.method; // set methos        r.url = url; // set url        r.reg = ele.reg; // set reg exp
        try {          for (const h of ele.hand) {            await h(r, res); // calls route handler            if (await res.reply !== "") {              break;            }          }        } catch (_e) {          await this.hand500(r, res); // if Errors than call 500 route        }        break;      }    }
    // if page not found than    if (is404) {      if (req.body) {        r.body = await req.text();      }      r.headers = req.headers;      r.method = req.method;      r.url = url;      try {        await this.hand404(r, res);      } catch (_e) {        await this.hand500(r, res);      }    }
    // send client response */    return new Response(      typeof res.reply !== "object" ? res.reply : JSON.stringify(res.reply),      {        status: res.status, // set status code        headers: { ...this.dHeaders, ...res.headers }, // set default and specific handler headers      },    );  };
  /** listen server */  public listen = (port: number) => {    serve(this.hand, {      port: port, // ser port    });  };
  /** listen server on TLS */  public listenTls = (port: number, certFile: string, keyFile: string) => {    serveTls(this.hand, {      port: port, // set port      certFile, // set cert file      keyFile, // set key file    });  };}
export { WebApp }; // export server