var express = require('express')
var app = express()
var fs = require('fs');
var bodyParser = require('body-parser');
var helmet = require('helmet')
app.use(helmet());
var session = require('express-session');
var FileStore= require('session-file-store')(session);



var template = require('./lib/template.js');
var container = require('./lib/container.js');

var axios = require('axios');
var request = require("request");

var low =require('lowdb')
var FileSync = require('lowdb/adapters/FileSync');
var adapter = new FileSync('db.json');
var db=low(adapter);
db.defaults({users:[]}).write();


app.use(bodyParser.urlencoded({ extended: false }));
app.use(bodyParser.json());
app.use(session({
  secret: 'asadlfkj!@#!@#dfgasdg',
  resave: false,
  saveUninitialized: true,
  store: new FileStore()
}))

var app_id = "a59b8963";


var api_key = "1c4c66e13fa8bf8d4d5c5a6c8ba1cf5b";

var foodkind;

var ingr;

var sID;

app.use(function(req, res, next) {
  res.header("Access-Control-Allow-Origin", "*");
  res.header("Access-Control-Allow-Headers", "Origin, X-Requested-With, Content-Type, Accept");
  next();
});

const OpenWeatherMapHelper = require("openweathermap-node");
const helper = new OpenWeatherMapHelper({
    
    APPID: 'afea3779ccf698668f89764635ac580f',
    units:"imperial"
})




app.use(express.static('data/images'));
app.get('/', function(request, response) {

    fs.readFile('./contents/main.html', function(error, body){
      var title = 'Health Care';
      var ch='15ch'
      var html = template.HTML(title,ch,'',body,'','');
      response.send(html);
    });
  });

  app.post('/login_process', function(request, response) {
   var post = request.body;
   var ID=post.ID;
   var password=post.pwd;
   var user = db.get('users').find({ID:ID,password:password}).value();
       if(user){
        request.session.is_logined = true;
        request.session.ID=ID;
        sID=ID;
        request.session.save(function(){
          response.redirect('/InputPage')
        });
       }
  });

  app.get('/signup', function(request, response) {
    fs.readFile('./contents/signup.html', function(error, body){
      var title = 'Sign Up Page';
      var ch='5ch'
      var html = template.HTML(title,ch,'<link rel="stylesheet" type="text/css" href="./a.css" />',body,'','');
      response.send(html);
    });
  });


  app.post('/signup_process', function(request, response) {
    var post = request.body;
    var ID=post.ID;
    var pwd=post.pwd;
    var age=post.age;
    var gender=post.gender;
    var height=post.height;
    var weight=post.weight;
    db.get('users').push({
      ID:ID,
      password:pwd,
      age:age,
      gender:gender,
      height:height,
      weight:weight
    }).write();
    request.session.is_logined = true;
    request.session.ID = ID;
    request.session.save(function(){
      response.redirect('/InputPage')
    });

  });


  app.get('/InputPage', function(request, response){
    fs.readFile('./contents/Input.html', function(error, body){
      var title = 'Input Page';
      var ch='5ch'
      var html = template.HTML(title,ch,``,body,`#logout{
        position:absolute;
        right: 20ch;
    }`,'');
      response.send(html);
    });
  });

  app.post('/foods', function(request, response){
    foodkind=request.body;
    ingr=foodkind.name;
      response.redirect('/ingr');
  });

  app.get('/ingr',function(req, res){
    var city;
    var temper;
    var weather;
    var detweather;
    var wind;
    var cloud;

helper.getCurrentWeatherByCityName("Seoul", (err, currentWeather) => {
    if(err){
        console.log(err);
    }
    else{
        console.log(currentWeather);
    }
    city=currentWeather.name;
    temper=currentWeather.main.temp;
    weather=currentWeather.weather[0].main;
    detweather=currentWeather.weather[0].description;
    wind=currentWeather.wind.speed;
    cloud=currentWeather.clouds.all;
    
    
});
    request(
      { method: 'GET'
      , uri: 'https://api.edamam.com/api/nutrition-data?app_id=' + app_id + '&app_key=' + api_key + '&ingr=' + ingr
      , gzip: true
      }
    , function (error, response, result) {
    fs.readFile('./contents/Result.html', function(error, body){
        var title = 'Result Page';
        var ch='5ch'
        var jresult=JSON.parse(result);
        var cal = jresult.calories;
        var user = db.get('users').find({ID:sID}).value();
        var bmi = user.weight/(user.height*user.height/100/100);
        var youkcal = user.height*user.height/100/100 * 21.5 * 35;
        var ccc = container.L(`<h2 style="margin-left: 10%">칼로리 : ${cal}kcal`,
        `<p style="margin-left: 10%">"Weather NOW"</p>
        <p id="w1" style="margin-left: 10%">도시 = ${city}</p>
        <p id="w3" style="margin-left: 10%">현재온도 = ${temper} ℃</p>
        <span id="w2" style="margin-left: 10%">현재날씨 = ${weather}</span>
        <span id="w4" style="margin-left: 10%">날씨상세 = ${detweather}</span>    
        <br><br>                            
        <span id="w5" style="margin-left: 10%">바람 = ${wind} m/s</span>
        <span id="w6" style="margin-left: 10%">구름 = ${cloud}  %</span>`,
        `<h2 style="margin-left: 10%">bmi: ${bmi} </h2>
        <h2 style="margin-left: 10%"> 하루 권장 칼로리: ${youkcal}</h2>`)
        var html = template.HTML(title,ch,``,body,`#logout{
          position:absolute;
          right: 20ch;
      }
  
      #section{
          position: absolute;
          margin-left:5%;
          float:left;
          width: 40%;
          height: 90%;
      }
     
     #container1{
         float: left;
         border: 1px solid white;
         background-color: orange;
         width: 100%;
         height: 60%;
     }
     #container2{
         float: left;       
         border: 1px solid white;
         background-color: rgb(102, 219, 180);
         font-weight: bold;
         width: 100%;
         height: 75%;
     }
     #container3{
         float: right;
         border: 1px solid white;
         background-color: gainsboro;
         margin-right:5%;
         width: 40%;
         height: 200%;
         
        
     }`,ccc);
         res.send(html);


      });
     });
});




  app.get('/logout', function(request, response) {
    request.session.destroy(function(err){
      response.redirect('/');
    })
  });

  app.listen(3000, function() {
    console.log('Example app listening on port 3000!')
  });