var path = require('path');

var express = require('express');
var App = express();
var bodyParser = require('body-parser');
var cookieParser = require('cookie-parser');
var multer = require('connect-multiparty');
var Glob = require("glob");

var Utils=require('./Utils');

var Router = express.Router();



module.exports = function (apiCofig) {

	// 记录下当前文档的路径
	//global.apps=apiCofig.apps;
    var Register={};
    if(apiCofig.EnvConst){
        for(var name in apiCofig.EnvConst){
            Register[name]=apiCofig.EnvConst[name];
            if(typeof Register[name]=="object"){
                for(var key in Register[name]){
                    if(typeof Register[name][key]==="string"){
                        Register[name][key]=Utils.template(Register[name][key],Register)
                    }
                }
            }
        }
    }
    App.set("Register",Register);


    /*日志配置和Console*/
    var Console = require("./Console");
    Console(apiCofig.log);
    console.info("YOHO");

    global.Register=App.get("Register");

    /*接口层*/
    var Interfacer = require("./Interfacer");
    var InterRegisters = new Interfacer(apiCofig,App);
    apiCofig.MVC.Interfacer &&
    Glob.sync(apiCofig.MVC.Interfacer).forEach(function (src) {
        InterRegisters.register(require(src));
    });

    /*控制器层*/
    var Controller = require("./Controller");
    var ContRegisters = new Controller(InterRegisters);
    apiCofig.MVC.Controller &&
    Glob.sync(apiCofig.MVC.Controller).forEach(function (src) {
        require(src)(ContRegisters);
    });

    /*过滤器*/
    var Filter = require("./Filter");
    var FilterRegisters = new Filter(InterRegisters);
    apiCofig.MVC.filters &&
    Glob.sync(apiCofig.MVC.filters).forEach(function (src) {
        require(src)(FilterRegisters);
    });

	/*View 设置*/
	var Viewer=require("./Viewer");
	var ViewerRegisters=new Viewer(App, apiCofig.MVC.views);


    var template = require('art-template');
    template.config('base', '');
    template.config('extname', '.html');
    template.config('openTag', '<%');
    template.config('closeTag', '%>');

    App.engine('.html', template.__express);
    App.set('view engine', 'html');


    /*内置中间件 对Http请求解析*/
    App.use(bodyParser.json());
    App.use(bodyParser.urlencoded({extended: true}));
    App.use(cookieParser());
    App.use(multer());

    App.use("/" + apiCofig.static.name, express.static(apiCofig.static.value));

    /*前置中間件*/
    apiCofig.useToEntry && apiCofig.useToEntry(App);

    App.use(function(req, res, next){
        ViewerRegisters.overrideRes.call(res);
        next();
    });
    

    /*路由控制*/
    var KLH = function (obj, method, guid) {
        return function (req, res) {
            obj[method].call(obj, guid, req, res);
        }
    };

    /*路由重复校验*/
    var checkUsedRouter={};
    ContRegisters.routers.forEach(function (router) {
        if(checkUsedRouter.hasOwnProperty(router.url)){
            console.info("检查下控制器是否重复");
            console.log(router.url);
        }else{
            checkUsedRouter[router.url]=true;
        }

        var ROU = Router.route([router.url]);
        var args = FilterRegisters.use(router.url, router.method).
        concat(KLH(ContRegisters, "emit", router.guid));
        ROU[router.method].apply(ROU, args);
    });
    checkUsedRouter=null;

    App.use(apiCofig.baseUrl, Router);

    App.use(function (req, res, next) {
        var err = new Error('Not Found');
        err.status = 404;
        // console.error(err.message);
        next(err);
    });
    /*後置中间间*/
    apiCofig.useToOuter && apiCofig.useToOuter(App, ContRegisters);

    App.use(function (req, res, next) {
        res.end();
    });

    var server = App.listen(apiCofig.port, function () {
        var host = server.address().address;
        var port = server.address().port;
        console.log("HOST:"+host+"PORT:"+port);
    });

};