app.js

var express     =   require("express");
var app         =   express();
var bodyParser  =   require("body-parser");
var request     =   require("request");
var mongo       =   require("mongodb");
var mongoose    =   require("mongoose");
var passport    =   require("passport");
var LocalStrategy = require("passport-local");
var User        =   require("./models/user");
var tourism     =   require("./models/tourism");
var Post        =   require("./models/posts");
var seedDB      =   require("./seeds");

seedDB();
app.use(express.static("public"));
app.use(bodyParser.urlencoded({extended: true}));
app.set("view engine", "ejs");
// console.log("dburl: ");
// console.log(process.env.DATABASEURL);
const dbConnect = async () => {
    var dataurl = process.env.DATABASEURL || "mongodb://localhost:27017/weather";
    console.log("dataurl: ", dataurl);
    //await mongoose.connect("mongodb://localhost:27017/weather");
    //await mongoose.connect("mongodb+srv://Rishiv:rishiv@weather-ji51z.mongodb.net/Weather?retryWrites=true&w=majority", {useNewUrlParser: true, useUnifiedTopology: true});
    await mongoose.connect(dataurl, {useNewUrlParser: true, useUnifiedTopology: true});
    //await mongoose.connect(process.env.DATABASEURL);
    console.log("db connected");
};

dbConnect();

app.use(require("express-session")({
    secret : "weather app",
    resave : false,
    saveUninitialized : false
}))
app.use(passport.initialize());
app.use(passport.session());
passport.use(new LocalStrategy(User.authenticate()));
passport.serializeUser(User.serializeUser());
passport.deserializeUser(User.deserializeUser());
app.use(function(req, res, next){
    res.locals.currentUser = req.user;
    next();
});
var weatSchema = new mongoose.Schema({
    temp: Number,
    humidity: Number
});

var weather = mongoose.model("weather", weatSchema);

// weather.create({
//     temp: 34,
//     humidity: 87
// }, function(err, w){
//     if(err) console.log("Error: "+err);
//     else console.log(w);
// });


app.get("/", function(req, res){
    res.render("home");
});

app.get("/home", function(req, res){
    res.render("home");
});


app.get("/compare_form",function(req,res){
    res.render("compare_form");
})

app.get("/comparison",function(req,res){

    var city1 = 'mumbai', city2 = 'delhi';

    if(req.query.city1)
        city1=req.query.city1;

    if(req.query.city2)
        city2=req.query.city2;

    console.log(city1);
    console.log(city2);
    var url1  = 'http://api.openweathermap.org/data/2.5/weather?q=' + city1 + '&appid=48164502b664fb28643399e9f69d1016&units=metric';
    var url2  = 'http://api.openweathermap.org/data/2.5/weather?q=' + city2 + '&appid=48164502b664fb28643399e9f69d1016&units=metric';
    
    var flag1=0,flag2=0;

    var dcity1 = {};
    var dcity2 = {};

    request(url1,function(error,response,body){
        
        if(!error && response.statusCode == 200){
        
            var data = JSON.parse(body);
            
            var pressure = data.main.pressure;
            var humidity = data.main.humidity;
            var wind_speed = data.wind.speed;
            var temp = data["main"]["temp"];
            var coord = data["coord"];
            var icon = data["weather"][0]["icon"];
            var cond = data["weather"][0]["main"];
            var temp_feels = data.main.feels_like;
            var temp_min = data.main.temp_min;
            var temp_max = data.main.temp_max;
            var clouds = data.clouds.all;
            var sunrise = data.sys.sunrise + data.timezone;
            var sunset = data.sys.sunset + data.timezone;
            var wind_deg = data.wind.deg;
    
            date = new Date(sunrise * 1000); 
    
            utcString = date.toUTCString(); 
            
            sunrise = utcString.slice(-11, -4);
            
            dateObj = new Date(sunset * 1000); 
            utcString = dateObj.toUTCString(); 
            sunset = utcString.slice(-11, -4);
            date = String(date);
            date = date.slice(0, 15);
    
            dcity1 = {
                place: city1,
                icon: icon,
                cond: cond,
                temp: temp,
                temp_max: temp_max,
                temp_min: temp_min,
                temp_feels: temp_feels,
                pressure: pressure,
                humidity: humidity,
                wind_speed: wind_speed,
                clouds: clouds,
                sunrise: sunrise,
                sunset: sunset,
                wind_deg: wind_deg,
                coord: coord,
                date: date
            }
            flag1 = 1;

            request(url2, function(error,response,body){
                // console.log("Error in api2: "+error);
                // console.log("SC: "+response.statusCode)
                if(!error && response.statusCode == 200){
                    
                    var data = JSON.parse(body);
                    
                    var pressure = data.main.pressure;
                    var humidity = data.main.humidity;
                    var wind_speed = data.wind.speed;
                    var temp = data["main"]["temp"];
                    var coord = data["coord"];
                    var icon = data["weather"][0]["icon"];
                    var cond = data["weather"][0]["main"];
                    var temp_feels = data.main.feels_like;
                    var temp_min = data.main.temp_min;
                    var temp_max = data.main.temp_max;
                    var clouds = data.clouds.all;
                    var sunrise = data.sys.sunrise + data.timezone;
                    var sunset = data.sys.sunset + data.timezone;
                    var wind_deg = data.wind.deg;
            
                    date = new Date(sunrise * 1000); 
                    
                    utcString = date.toUTCString(); 
            
                    sunrise = utcString.slice(-11, -4);
                    
                    dateObj = new Date(sunset * 1000); 
                    utcString = dateObj.toUTCString(); 
                    sunset = utcString.slice(-11, -4);
                    date = String(date);
                    date = date.slice(0, 15);
            
                    dcity2 = {
                        place: city2,
                        icon: icon,
                        cond: cond,
                        temp: temp,
                        temp_max: temp_max,
                        temp_min: temp_min,
                        temp_feels: temp_feels,
                        pressure: pressure,
                        humidity: humidity,
                        wind_speed: wind_speed,
                        clouds: clouds,
                        sunrise: sunrise,
                        sunset: sunset,
                        wind_deg: wind_deg,
                        coord: coord,
                        date: date
                    }
                    flag2 = 1;
            
                    dcity = {
                        dcity1: dcity1,
                        dcity2: dcity2
                    };
            
                    if(!dcity.dcity1 && !dcity.dcity2)
                    {
                        location.reload();
                    }
                    console.log(dcity.dcity1.sunset);
                    console.log(dcity.dcity2.sunset);
                    res.render('comparison', {dcity:dcity});
            
                }
                else console.log("API 2 failed")
            });
        }
        else{
            console.log('Api1 failed');
        }
    });
 });


var filter;
app.get("/tourism",isLoggedIn, function(req, res){

    tourism.find({}, function(err, tour){
        if(err){
            console.log("Error: "+err);
        }
        else{
            res.render("tourism", {tour: tour});
        }
    });
});

app.get("/tourism/filtered_places", function(req, res){

    var landform, temp, humidity, arr = {};
    var l = 0, t = 0, h = 0;

    if(req.query.tour)
        filter = req.query.tour;

    if(req.query.tour.landform){
        landform = req.query.tour.landform;
        arr.landform = landform;
        l = 1;
    }
        
    if(req.query.tour.hum){
        humidity = req.query.tour.hum;
        arr.humidity = humidity;
        h = 1;
    }
        
    if(req.query.tour.temp){
        temp = req.query.tour.temp;
        arr.temp = temp;
        t = 1;
    }

    if(l == 1 && h == 1 && t == 1){
        tourism.find({landform: landform, humidity: humidity, temp: temp}, function(err, ret){
            if(err){
                console.log("error");
            }
            else{
                res.render("filtered_places", {ret: ret});
            }
        });
    }
    else if(l == 1 && h == 1 && t == 0){
        tourism.find({landform: landform, humidity: humidity}, function(err, ret){
            if(err){
                console.log("error");
            }
            else{
                res.render("filtered_places", {ret: ret});
            }
        });
    }
    else if(l == 1 && h == 0 && t == 1){
        tourism.find({landform: landform, temp: temp}, function(err, ret){
            if(err){
                console.log("error");
            }
            else{
                res.render("filtered_places", {ret: ret});
            }
        });
    }
    else if(l == 0 && h == 1 && t == 1){
        tourism.find({temp: temp, humidity: humidity}, function(err, ret){
            if(err){
                console.log("error");
            }
            else{
                res.render("filtered_places", {ret: ret});
            }
        });
    }
    else if(l == 1 && h == 0 && t == 0){
        tourism.find({landform: landform}, function(err, ret){
            if(err){
                console.log("error");
            }
            else{
                res.render("filtered_places", {ret: ret});
            }
        });
    }
    else if(l == 0 && h == 1 && t == 0){
        tourism.find({humidity: humidity}, function(err, ret){
            if(err){
                console.log("error");
            }
            else{
                res.render("filtered_places", {ret: ret});
            }
        });
    }
    else if(l == 0 && h == 0 && t == 1){
        tourism.find({temp: temp}, function(err, ret){
            if(err){
                console.log("error");
            }
            else{
                res.render("filtered_places", {ret: ret});
            }
        });
    }
    else{
        tourism.find({}, function(err, ret){
            if(err){
                console.log("error");
            }
            else{
                res.render("filtered_places", {ret: ret});
            }
        });
    }
});

app.get("/tourism/:id", function(req, res){

    tourism.findById(req.params.id, function(err, found){
        if(err){
            console.log(err);
        }
        else{
            res.render("part_place", {tour: found});
        }
    });
});

app.get("/about", function(req, res){
    res.render("about");
});

app.get("/cities", function(req, res){
    res.render("cities");
});

var place = 'mumbai';
var all_days=[], all_dates=[], all_times=[];
var date1, timezone, time;
var data;
var day1=[], day2=[], day3=[], day4=[], day5=[], day6=[];
var count_day1, count_day6;
var alerts_data, alerts_list, num;
var chart_temp = [], chart_hum = [];
var days_chart = [];
var message;

app.get("/index", function(req, res){
    if(req.query.place)
        place = req.query.place;
    
    var url = 'http://api.openweathermap.org/data/2.5/forecast?q=' + place + '&appid=8e92bda0f95b3b0228d1a57fcc94c9ea&units=metric';
    request(url, function(error,response,body){
        
        if(!error && response.statusCode == 200){
            data = JSON.parse(body);     

            for(var i=0; i<data.list.length; i++)
            {
                date1 = data.list[i].dt;
                timezone = data.city.timezone;
                time = date1 + timezone;

                time = new Date(time * 1000);
                time = time.toUTCString();
                time = String(time);
                all_times[i] = time.slice(17, 25);
                all_days[i] = time.slice(0, 3);
                all_dates[i] = time.slice(5, 11);
            }
            var lat = data.city.coord.lat;
            var lon = data.city.coord.lon;

            count_day1 = 0;
            for(var i=0; i<all_days.length; i++){
                if(all_days[i] == all_days[0])
                    count_day1++;
            }
            count_day6 = 8 - count_day1;

            for(var i=0; i<40; i++){
                data.list[i].dt = all_dates[i];
                data.list[i].time = all_times[i];
                data.list[i].day = all_days[i];
                data.list[i].icon_url = 'http://openweathermap.org/img/wn/' + data.list[i].weather[0].icon + '@2x.png';
            }
            day1 = [];
            day2 = [];
            day3 = [];
            day4 = [];
            day5 = [];
            day6 = [];
            for(var i=0; i<count_day1; i++){
                day1[i] = data.list[i];
            }

            for(var i=0; i<8; i++){
                day2[i] = data.list[count_day1 + i];
                day3[i] = data.list[count_day1 + i + 8];
                day4[i] = data.list[count_day1 + i + 16];
                day5[i] = data.list[count_day1 + i + 24];
            }

            for(var i=0; i<count_day6; i++){
                day6[i] = data.list[32 + count_day1 + i];
            }

            if(day1[0].main.temp){
                chart_temp[0] = day1[0].main.temp;
                chart_temp[1] = day2[0].main.temp;
                chart_temp[2] = day3[0].main.temp;
                chart_temp[3] = day4[0].main.temp;
                chart_temp[4] = day5[0].main.temp;
                days_chart[0] = day1[0].day;
                days_chart[1] = day2[0].day;
                days_chart[2] = day3[0].day;
                days_chart[3] = day4[0].day;
                days_chart[4] = day5[0].day;
                chart_hum[0] = day1[0].main.humidity;
                chart_hum[1] = day2[0].main.humidity;
                chart_hum[2] = day3[0].main.humidity;
                chart_hum[3] = day4[0].main.humidity;
                chart_hum[4] = day5[0].main.humidity;
            }

            else{
                chart_temp[0] = day2[0].main.temp;
                chart_temp[1] = day3[0].main.temp;
                chart_temp[2] = day4[0].main.temp;
                chart_temp[3] = day5[0].main.temp;
                chart_temp[4] = day6[0].main.temp;
                days_chart[0] = day2[0].day;
                days_chart[1] = day3[0].day;
                days_chart[2] = day4[0].day;
                days_chart[3] = day5[0].day;
                days_chart[4] = day6[0].day;
                chart_hum[0] = day2[0].main.humidity;
                chart_hum[1] = day3[0].main.humidity;
                chart_hum[2] = day4[0].main.humidity;
                chart_hum[3] = day5[0].main.humidity;
                chart_hum[4] = day6[0].main.humidity;
            }

            obj = {
                place: place,
                day1: day1,
                day2: day2,
                day3: day3,
                day4: day4,
                day5: day5,
                day6: day6,
                count_day1: count_day1,
                count_day6: count_day6,
                chart_temp: chart_temp,
                days_chart: days_chart,
                chart_hum: chart_hum
            };
        }
        else{
            console.log("Error");
        }

        var alerts_url = "https://api.weatherbit.io/v2.0/alerts?lat=" + lat + "&lon=" + lon + "&key=ef82eaf62ed2480a8250b65fa165efd5";
        request(alerts_url, function(error, response, body){
            console.log(error);
            console.log(response.statusCode);
            if(!error && response.statusCode == 200){
                alerts_data = JSON.parse(body);
                alerts_list = [];
                num = alerts_data.alerts.length;
                if(num){
                    for(var i=0; i<num; i++)
                        alerts_list[i] = alerts_data.alerts[i];
                }
                obj.alerts = alerts_list
                obj.num_alerts = num;
                res.render("index", obj);
            }
            else{
                console.log("Error in alerts");
            }
        });
    });
});

//Weatherbit api key = ef82eaf62ed2480a8250b65fa165efd5
var cond, gif_cond;
app.get("/day_weather", function(req, res){

    if(req.query.place){
        place = req.query.place;
    }
    var url = 'http://api.openweathermap.org/data/2.5/weather?q=' + place + '&appid=48164502b664fb28643399e9f69d1016&units=metric';
    var lon, lat, obj = {};
    
    request(url, function(error, response, body){
        if(!error && response.statusCode == 200){
            var data = JSON.parse(body);

            var pressure = data.main.pressure;
            var humidity = data.main.humidity;
            var wind_speed = data.wind.speed;
            var temp = data["main"]["temp"];
            var coord = data["coord"];
            var icon_url = 'http://openweathermap.org/img/wn/' + data["weather"][0]["icon"] + '@2x.png'; 
            cond = data["weather"][0]["description"];
            gif_cond = data.weather[0].main;
            var temp_feels = data.main.feels_like;
            var temp_min = data.main.temp_min;
            var temp_max = data.main.temp_max;
            var clouds = data.clouds.all;
            var sunrise = data.sys.sunrise + data.timezone;
            var sunset = data.sys.sunset + data.timezone;
            var wind_deg = data.wind.deg;
            var dt = data.dt + data.timezone;
            lon = data.coord.lon;
            lat = data.coord.lat;

            var uv_url = "http://api.openweathermap.org/data/2.5/uvi?appid=8e92bda0f95b3b0228d1a57fcc94c9ea&lat=" + lat + "&lon=" + lon;
            var alerts_url = "https://api.weatherbit.io/v2.0/alerts?lat=" + lat + "&lon=" + lon + "&key=ef82eaf62ed2480a8250b65fa165efd5";

            date = new Date(sunrise * 1000); 
            utcString = date.toUTCString(); 
            sunrise = utcString.slice(-11, -4);
            dt = new Date(dt * 1000);
            dt = dt.toUTCString();
            dt = String(dt);       
            time = dt.slice(17, 25);

            dateObj = new Date(sunset * 1000); 
            utcString = dateObj.toUTCString(); 
            sunset = utcString.slice(-11, -4);
            date = String(date);
            date = date.slice(0, 15);

            obj = {
                place: place,
                icon_url: icon_url,
                cond: cond,
                temp: temp,
                temp_max: temp_max,
                temp_min: temp_min,
                temp_feels: temp_feels,
                pressure: pressure,
                humidity: humidity,
                wind_speed: wind_speed,
                clouds: clouds,
                sunrise: sunrise,
                sunset: sunset,
                wind_deg: wind_deg,
                coord: coord,
                date: date,
                time: time,
                gif_cond: gif_cond
            };
        }
        else{
            console.log("Error");
        }

        // var uv;
        // request(uv_url, function(error, response, body){
        //     if(!error && response.statusCode == 200){
        //         var uv_data = JSON.parse(body);
        //         uv = uv_data.value;
        //         obj.uv = uv;
        //     }
        //     else {
        //         console.log("UV API error");
        //     }
        // });
        

        request(alerts_url, function(error, response, body){
            if(!error && response.statusCode == 200){
                alerts_data = JSON.parse(body);
                alerts_list = [];
                num = alerts_data.alerts.length;
                if(num){
                    for(var i=0; i<num; i++)
                        alerts_list[i] = alerts_data.alerts[i];
                }
                obj.alerts = alerts_list
                obj.num_alerts = num;
                res.render("day_weather", obj);
            }
            else{
                console.log("Error in alerts");
            }
        });
    }); 
});

app.get("/day_forecast/:day", function(req, res){

        var part_day = req.params.day;
        if(part_day === "day1"){
            res.render("day_forecast", {day: day1, place: place});
        }

        else if(part_day === "day2")
            res.render("day_forecast", {day: day2, place: place});
        
        else if(part_day === "day3")
            res.render("day_forecast", {day: day3, place: place});
        
        else if(part_day === "day4")
            res.render("day_forecast", {day: day4, place: place});

        else if(part_day === "day5")
            res.render("day_forecast", {day: day5, place: place});
        
        else res.render("day_forecast", {day: day6, place: place});
});

app.get("/alerts", function(req, res){
    obj = {
        alerts: alerts_list
    };
    res.render("alerts", obj);
});

app.get("/climate_map", function(req, res){
    res.render("climate_map");
});

app.get("/climate_map/pressure_map", function(req, res){

    var url = "https://tile.openweathermap.org/map/pressure_new/100/3/2.png?appid=48164502b664fb28643399e9f69d1016";
    request(url, function(error, response, body){
        console.log("Error: "+error);
        console.log("SC: "+response.statusCode);
        if(!error && response.statusCode == 200){
            //console.log(body);

            var map;
            function initMap() {
                map = new google.maps.Map(document.getElementById('map'), {
                    center: {lat: -34.397, lng: 150.644},
                    zoom: 8
                });
            }
            obj = {
                body: body,
                map:map
            };
            //console.log("Working");
            res.render("pressure_map", obj);
        }
        else{
            console.log("Error");
        }
    });
});



app.get("/climate_map/rain_map", function(req, res){
    res.render("rain_map");
});

app.get("/climate_map/temp_map", function(req, res){

    var url = "https://tile.openweathermap.org/map/temp_new/100/3/2.png?appid=48164502b664fb28643399e9f69d1016";
    request(url, function(error, response, body){
        // console.log("Error: "+error);
        // console.log("SC: "+response.statusCode);
        if(!error && response.statusCode == 200){

            var map;
            function initMap() {
                map = new google.maps.Map(document.getElementById('map'), {
                    center: {lat: -34.397, lng: 150.644},
                    zoom: 8
                });
            }
            obj = {
                body: body,
                map:map
            };
            console.log("Working");
            res.render("temp_map", obj);
        }
        else{
            console.log("Error");
        }
    });
});


app.get("/climate_map/wind_map", function(req, res){
    res.render("wind_map");
});

app.get("/climate_map/cloud_map", function(req, res){
    res.render("cloud_map");
});

app.get("/country_map", function(req, res){
    res.render("country_map");
});




//-----------------Blog routes goes here-----------------------------------


app.get("/create_post",isLoggedIn,function(req,res){


res.render("create_new_post");

});

app.post("/create_post",isLoggedIn,function(req,res){

    var title = req.body.title;
    var place = req.body.place;
    var time = req.body.time;
    var author = req.body.author;
    var image = req.body.image;
    var description = req.body.description;

    var post={
        title:title,
        place:place,
        time:time,
        description:description,
        image:image,
        author:author,

    }
    var user_id=req.user._id;
    User.findById(user_id,function(err,user){
        if(err){
        console.log(err);
        res.redirect("/create_post");
        }
        else{
            Post.create(post,function(err,post){
                if(err){
                    console.log(err);
                }
                else{
                    user.posts.push(post);
                    user.save();
                    res.redirect("/tourism_home")
                }
            });
        }
    });

});

app.get("/tourism_home",isLoggedIn,function(req,res){

     /*Post.find( function(err,posts){
        console.log(posts);
        //res.render("tourism_home",{posts:posts}); 
        res.send(posts);  
     });*/
     Post.find({}, function(err, users) {
        var userMap = {};
    
        res.render("tourism_home",{posts:users});  
      });
    
    
});


app.get("/your_blog",isLoggedIn,function(req,res){
    var user_id = req.user._id;
    var allposts = [];
  

   User.findById(user_id).populate("posts").exec(function(err,foundPost){
       if(err)console.log(err);

       else{
           //console.log(foundPost);
           res.render("your_blog",{posts:foundPost.posts});
       }
   });
})




module.exports = chart_temp;



//AUTH ROUTES

app.get("/register", function(req, res){
    res.render("register");
});

app.post("/register", function(req, res){
    var newUser = new User({username: req.body.username, email: req.body.email});
    User.register(newUser, req.body.password, function(err,user){
        if(err){
            console.log(err);
            return res.render("register");
        }
        passport.authenticate("local")(req, res, function(){
            //message = "Registered";
            res.redirect("/home");
        });
    });
});

app.get("/login", function(req, res){
    res.render("login");
})

app.post("/login", passport.authenticate("local",
    {
        successRedirect: "/home",
        failureRedirect: "/login"
    }), function(req, res){
})

app.get("/logout", function(req, res){
    req.logout();
    res.redirect("/home")
})

function isLoggedIn(req, res, next){
    if(req.isAuthenticated()){
        return next();
    }
    res.redirect("/login");
}
//AUTH ROUTES END

app.get("*", function(req, res){
    res.send("Page not found");
});

var port = process.env.PORT || 3000;
app.listen(port, function(){
    console.log("Server running on port", port);
});