var express = require('express');
var router = express.Router();
var path = require('path');
var year = new Date().getYear()+1900;
var path = require('path');
var analytics = "xx";
var mongojs = require('mongojs');
var token_db = mongojs("tokens");
var Functions = require(pathThumbnails + '/handlers/functions.js');
var Frontpage = require(pathThumbnails + '/handlers/frontpage.js');

var db = require(pathThumbnails + '/handlers/db.js');
//var db = require(pathThumbnails + '/handlers/db.js');

try {
    analytics = require(path.join(path.join(__dirname, '../../config/'), 'analytics.js'));
} catch(e) {
    console.log("No analytics-id found");
}
try {
    var Recaptcha = require('express-recaptcha');
    var recaptcha_config = require(path.join(path.join(__dirname, '../../config/'), 'recaptcha.js'));
    var RECAPTCHA_SITE_KEY = recaptcha_config.site;
    var RECAPTCHA_SECRET_KEY = recaptcha_config.key;
    var recaptcha = new Recaptcha(RECAPTCHA_SITE_KEY, RECAPTCHA_SECRET_KEY);
} catch(e) {
    console.log("Error - missing file");
    console.log("Seems you forgot to create the file recaptcha.js in /server/config/. Have a look at recaptcha.example.js.");
    var recaptcha = {
        middleware: {
            render: (req, res, next) => {
                res.recaptcha = ""
                next()
            }
        }
    }
}

router.use(recaptcha.middleware.render, function(req, res, next) {
    next(); // make sure we go to the next routes and don't stop here
});

router.route('/:channel_name').get(function(req, res, next){
    channel(req, res, next);
});

router.route('/r/:base64data').get(function(req, res, next){
    var channelToRedirect = Buffer.from(req.params.base64data, 'base64');
    res.redirect('/' + channelToRedirect);
});

router.route('/').get(function(req, res, next){
    root(req, res, next);
});

router.route('/').post(function(req, res, next){
    root(req, res, next);
});

router.route('/api/embed').get(function(req, res, next) {
    var data = {
        year: year,
        javascript_file: "embed.min.js",
        captcha: res.recaptcha,
        analytics: analytics,
        stylesheet: "embed.css",
        embed: true,
        og_image: "https://zoff.me/assets/images/small-square.jpg",
    }
    res.render('layouts/client/embed', data);
});

router.route('/api/oauth').get(function(req, res, next) {
    res.sendFile(path.join(pathThumbnails, '/public/assets/html/callback.html'));
});

router.route('/api/apply').get(function(req, res, next) {
    var data = {
        year: year,
        javascript_file: "token.min.js",
        captcha: res.recaptcha,
        analytics: analytics,
        activated: false,
        id: "",
        correct: false,
        stylesheet: "style.css",
        embed: false,
        og_image: "https://zoff.me/assets/images/small-square.jpg",
    }
    res.render('layouts/client/token', data);
});

router.route('/api/apply/:id').get(function(req, res) {
    var id = req.params.id;
    token_db.collection('api_links').find({id: id}, function(err, result) {
        if(result.length == 1) {
            token_db.collection('api_links').remove({id: id}, function(e,d) {
                token_db.collection('api_token').update({token: result[0].token}, {$set: {active: true}}, function(e,d) {
                    var data = {
                        year: year,
                        javascript_file: "token.min.js",
                        captcha: res.recaptcha,
                        analytics: analytics,
                        activated: true,
                        token: result[0].token,
                        correct: true,
                        stylesheet: "style.css",
                        embed: false,
                        og_image: "https://zoff.me/assets/images/small-square.jpg",
                    }
                    res.render('layouts/client/token', data);
                });
            });
        } else {
            var data = {
                year: year,
                javascript_file: "token.min.js",
                captcha: res.recaptcha,
                analytics: analytics,
                activated: false,
                token:"",
                correct: false,
                stylesheet: "style.css",
                embed: false,
                og_image: "https://zoff.me/assets/images/small-square.jpg",
            }
            res.render('layouts/client/token', data);
        }
    });
});


function root(req, res, next) {
    try{
        var url = req.headers['x-forwarded-host'] ? req.headers['x-forwarded-host'] : req.headers.host.split(":")[0];
        var subdomain = req.headers['x-forwarded-host'] ? req.headers['x-forwarded-host'].split(".") : req.headers.host.split(":")[0].split(".");
        /*if(url != "zoff.me" && url != "admin.localhost" && url != "admin.zoff.me" && url != "remote.zoff.me" && url != "fb.zoff.me" && url != "remote.localhost" && url != "localhost") {
            res.redirect("https://zoff.me");
            return;
        }*/
        if(subdomain[0] == "remote") {
            var data = {
                year: year,
                javascript_file: "remote.min.js",
                captcha: res.recaptcha,
                analytics: analytics,
                stylesheet: "style.css",
                embed: false,
                client: false,
                og_image: "https://zoff.me/assets/images/small-square.jpg",
            }
            res.render('layouts/client/remote', data);
        } else if(subdomain[0] == "www") {
            res.redirect("https://zoff.me");
        } else {
            var data = {
                year: year,
                javascript_file: "main.min.js",
                captcha: res.recaptcha,
                analytics: analytics,
                stylesheet: "style.css",
                embed: false,
                client: false,
                og_image: "https://zoff.me/assets/images/small-square.jpg",
                channels: [],
            }
            if(subdomain[0] == "client") {
                data.client = true;
            }
            Frontpage.get_frontpage_lists(function(err, docs){
                db.collection("connected_users").find({"_id": "total_users"}, function(err, tot) {
                    if(docs.length > 0) {
                        data.channels_exist = true;
                        data.channels = docs.slice(0, 12);
                        data.channel_list = JSON.stringify(docs);
                    } else {
                        data.channels_exist = false;
                        data.channels = [];
                        data.channel_list = [];
                    }
                    data.viewers = tot[0].total_users.length;
                    res.render('layouts/client/frontpage', data);
                });
            });

        }
    } catch(e) {
        console.log(e);
        //res.redirect("https://zoff.me");
    }
}

function channel(req, res, next) {
    try{
        var url = req.headers['x-forwarded-host'] ? req.headers['x-forwarded-host'] : req.headers.host.split(":")[0];
        var subdomain = req.headers['x-forwarded-host'] ? req.headers['x-forwarded-host'].split(".") : req.headers.host.split(":")[0].split(".");
        /*if(url != "zoff.me" && url != "admin.localhost" && url != "admin.zoff.me" && url != "remote.zoff.me" && url != "fb.zoff.me" && url != "remote.localhost" && url != "localhost") {
            res.redirect("https://zoff.me");
            return;
        }*/
        if(subdomain[0] == "remote") {
            var data = {
                year: year,
                javascript_file: "remote.min.js",
                captcha: res.recaptcha,
                analytics: analytics,
                stylesheet: "style.css",
                embed: false,
                client: false,
                og_image: "https://zoff.me/assets/images/small-square.jpg",
            }
            res.render('layouts/client/remote', data);
        } else if(subdomain.length >= 2 && subdomain[0] == "www") {
            res.redirect("https://zoff.me");
        } else {
            if(req.params.channel_name == "o_callback") {
                res.redirect("/api/oauth");
                //res.sendFile(path.join(pathThumbnails, '/public/assets/html/callback.html'));
            } else {
                /*db.collection("frontpage_lists").find({"_id": Functions.encodeChannelName(req.params.channel_name)}, function(err, docs) {
                    console.log(docs);
                    var og_image = "https://zoff.me/assets/images/small-square.jpg";
                    if(docs.length == 1) {
                        if(docs[0].hasOwnProperty("thumbnail")) {
                            if(docs[0].thumbnail.indexOf("mqdefault.jpg") > -1) docs[0].thumbnail = docs[0].thumbnail.replace("mqdefault", "hqdefault");
                            og_image = docs[0].thumbnail;
                        } else {
                            og_image = "https://img.youtube.com/vi/" + docs[0].id + "/hqdefault.jpg";
                        }
                    }*/
                    var data = {
                        title: "404: File Not Found",
                        list_name: capitalizeFirstLetter(Functions.decodeChannelName(req.params.channel_name)),
                        year: year,
                        javascript_file: "main.min.js",
                        captcha: res.recaptcha,
                        analytics: analytics,
                        stylesheet: "style.css",
                        embed: false,
                        client:false,
                        og_image: "https://zoff.me/assets/images/small-square.jpg"
                    }
                    if(subdomain[0] == "client") {
                        data.client = true;
                    }
                    if(req.params.channel_name == "404") {
                        res.status(404);
                    }
                    res.render('layouts/client/channel', data);
                //});
            }
        }
    } catch(e) {
      res.redirect("https://zoff.me");
    }
}

function capitalizeFirstLetter(string) {
    return string.charAt(0).toUpperCase() + string.slice(1);
}

module.exports = router;