import express, { Router } from "express";
import { AppMasterRouterType } from "./types";
import {
  AppMasterMiddleware,
  AppMasterMiddlewareConfig,
  AppMasterMiddlewareSetter,
  AppMasterMiddlewareKey
} from "../am-middleware";
import { AppMasterCoreType } from "../../am-core";

export interface AppMasterRouter extends AppMasterRouterType {}
export class AppMasterRouter {
  constructor(config:AppMasterMiddlewareConfig,main:AppMasterMiddlewareConfig["main"],m:AppMasterCoreType){
    const app = express();
    app.disable("x-powered-by");
    const middleware = new AppMasterMiddleware();
    if(config){
      const custom = config.custom(m);
      const customNames = Object.keys(custom);
      const setCustomMiddleware = (k:string,b:1|0) => {
        customNames.forEach(s => {
          const handler = custom[s];
          handler.before == k && b?app.use(handler.func(m)):
          handler.after == k && !b?app.use(handler.func(m)):
          null;});};
      for(const k in config){
        if(k !== "custom"){
          if(k == "main"){app.use(m.vars.entry,main?main(m):Router());}
          else{
            const opts:any = config[k as keyof AppMasterMiddlewareConfig];
            const setter = middleware[k as keyof AppMasterMiddleware] as AppMasterMiddlewareSetter<AppMasterMiddlewareKey>;
            setCustomMiddleware(k,1);
            setter?setter(app,opts,m):null;
            setCustomMiddleware(k,0);}}}}
    middleware.pageNotFound(app,null,m);
    middleware.finalHandler(app,null,m);
    return app;}}
export default AppMasterRouter;