var express = require('express');
var bodyParser= require('body-parser');//post할때 필요
var multer = require('multer'); //업로드할 때 필요
var request = require('request');
var http = require('http');
var vhost = 'nodejsapp.local';
var port = process.env.PORT || 8080;
var ip = process.env.IP || "localhost";


var app= express();

app.set('port', port);
app.locals.pretty = true;
app.engine('html', require('ejs').renderFile);
app.use(express.static('public'));
app.use('/user',express.static('uploads'));
app.set('views','./views');
app.set('view engine', 'html');
app.use(bodyParser.urlencoded({extended:false}));

var storage = multer.diskStorage({ //이 객체의 프로퍼티는 2개갖고 있다.
    destination: function (req, file, cb) {
        cb(null, 'uploads/');//업로드 위치를 저장하는 path함수
    },
    filename: function (req, file, cb) {
        // cb(null, file.originalname); //저장할 파일명
        cb(null, 'mypic.jpg');
    }
});
var upload = multer({ storage: storage});



// Replace <Subscription Key> with your valid subscription key.
var subscriptionKey = '61650f4a2941462ea2dba74eabefd114';
// You must use the same location in your REST call as you used to get your
// subscription keys. For example, if you got your subscription keys from
// westus, replace "westcentralus" in the URL below with "westus".
var uriBase = 'https://eastasia.api.cognitive.microsoft.com/face/v1.0/detect';
var imageUrl = 'http://localhost:8080/user/mypic.jpg';
// Request parameters.
var params = {
    'returnFaceId': 'true',
    'returnFaceLandmarks': 'false',
    'returnFaceAttributes': 'age,gender,emotion,hair'
    //'headPose,smile,facialHair,glasses, emotion,hair,makeup,occlusion,accessories,blur,exposure,noise'
};
var options = {
    uri: uriBase,
    qs: params,
    body: '{"url": ' + '"' + imageUrl + '"}',
    headers: {
        'Content-Type': 'application/json',
        'Ocp-Apim-Subscription-Key' : subscriptionKey
    }
};

app.get('/home', function(req,res){
    console.log("home");
    res.render('upload');
});
app.post('/uploads', upload.single('userfile'),function(req,res){
    res.render("result")
    console.log(req.file.path)
    request.post(options, (error, response, body) => {
        if (error) {
            console.log('Error: ', error);
            return;
        }
        let jsonResponse = JSON.stringify(JSON.parse(body), null, '  ');
        console.log('JSON Response\n');
        console.log(jsonResponse);
    });
});

var server = http.createServer(app).listen(app.get('port'), function () {
    console.log('Express server listening on port ' + vhost + ":" + server.address().port);
});