/**
 * Created by Taylor on 3/17/2018.
 */

var request = require('request'),
    cheerio = require('cheerio');
var fs = require('fs');
var nodemailer = require('nodemailer');

var showDebug = process.argv[2]
var sendEmail = process.argv[3]

var dictionary = [
    {store: 'JM',jQuery:'.tpitem_g .title a',file: 'C:\\Users\\Taylor\\IdeaProjects\\untitled1\\src\\JMstore',url:'http://stores.ebay.com/JM-Bullion/_i.html?_nkw=ON+SALE'},
    {store: 'Apmex',jQuery:'.gpvi',file: 'C:\\Users\\Taylor\\IdeaProjects\\untitled1\\src\\APMEXstore',url:'http://stores.ebay.com/APMEX?submit=SEARCH&_nkw=special+price'},
    {store: 'MCM',jQuery:'.tpitem_g .title a',file: 'C:\\Users\\Taylor\\IdeaProjects\\untitled1\\src\\MCMstore',url:'http://stores.ebay.com/ModernCoinMart/Daily-Deals-/_i.html?_fsub=24095177011&_sid=160224921&_trksid=p4634.m322'},
    {store: 'Bullion Exchanges',jQuery:'.gpvi',file: 'C:\\Users\\Taylor\\IdeaProjects\\untitled1\\src\\BEstore',url:'http://stores.ebay.com/Bullion-Exchanges_W0QQ?_nkw=Sale+Price'}]

function start(data,done){

    fs.readFile(data.file, 'utf8', function(err, result) {
        if (err) throw err;

        var lines = result.split(/\r?\n/);

        //overwrite file
        fs.writeFile(data.file, '', function(err){
            if(err) debug(err,"writeFile");
        });

        debug(result.split(/\r?\n/),"readFile");

        scrape(data,function(obj){
            var messageBody=[]
            obj.forEach(function(href){

                fs.appendFile(data.file,href +"\n",function(err){
                    if (err) debug(err);


                });
                doIexist(result,href,function(bool){
                    if(!bool){

                        debug(result.split(/\r?\n/),"doIexist")
                        //new coin. check for substrings ('Gold')
                        if(linkCheck(href)){
                            debug("APPENDING MESSAGE BODY","linkCheck")
                            messageBody.push(href);
                        }

                    }
                })


            });
            done(messageBody)

        });

    });

}
//console.log(dictionary[0])
function linkCheck(href){
    return href.indexOf('Gold') !== -1
}
function doIexist(file,href,done){

    var found = file.indexOf(href) !=-1
    done(found)
}

function scrape(data,callback) {

    request(data.url, function (err, resp, body) {
        var hrefs =[]
        if (!err && resp.statusCode == 200) {
            var $ = cheerio.load(body);
        $(data.jQuery).each(function (index, i) {

                var href = $(this).attr('href');
                hrefs.push(href)
            });
            callback(hrefs)
        }
    });
}

var smtpTransport = nodemailer.createTransport({
    service: "hotmail",  // sets automatically host, port and connection security settings
    auth: {
        user: "beeslikehoneygold@hotmail.com",
        pass: "HoneyGold123"
    }
});

function mail(messageBody,sub,callback) {
    var messageBodyJson = messageBody
    smtpTransport.sendMail({  //email options
        from: "beeslikehoneygold@hotmail.com", // sender address.  Must be the same as authenticated user if using Gmail.
        to: "beeslikehoneygold@hotmail.com", // receiver
        subject: sub, // subject
        text: messageBodyJson // body
    }, function(error, response){  //callback
        if(error){

            console.log("error",error);
        }else{
            console.log(response);
            callback("message sent")
        }

        //    smtpTransport.close(); // shut down the connection pool, no more messages.  Comment this line out to continue sending emails.
    });
}
process.env.NODE_TLS_REJECT_UNAUTHORIZED = "0";

function getgoing(){
    var data = dictionary.shift();

    if (!data){
        console.log("Finished list, resetting array")
        dictionary= [
            {store: 'JM',jQuery:'.tpitem_g .title a',file: 'C:\\Users\\Taylor\\IdeaProjects\\untitled1\\src\\JMstore',url:'http://stores.ebay.com/JM-Bullion/_i.html?_nkw=ON+SALE'},
            {store: 'Apmex',jQuery:'.gpvi',file: 'C:\\Users\\Taylor\\IdeaProjects\\untitled1\\src\\APMEXstore',url:'http://stores.ebay.com/APMEX?submit=SEARCH&_nkw=special+price'},
            {store: 'MCM',jQuery:'.tpitem_g .title a',file: 'C:\\Users\\Taylor\\IdeaProjects\\untitled1\\src\\MCMstore',url:'http://stores.ebay.com/ModernCoinMart/Daily-Deals-/_i.html?_fsub=24095177011&_sid=160224921&_trksid=p4634.m322'},
            {store: 'Bullion Exchanges',jQuery:'.gpvi',file: 'C:\\Users\\Taylor\\IdeaProjects\\untitled1\\src\\BEstore',url:'http://stores.ebay.com/Bullion-Exchanges_W0QQ?_nkw=Sale+Price'}];
        return;
    }
    console.log("Starting : "+data.store)

    start(data,function(message){

        if(message.length > 0 && sendEmail.toLowerCase()=="true"){
            console.log("Found new coin(s) for "+data.store +'\n Sending email')

            mail(message.join('\r\n'),data.store,function(){
                console.log("EMAIL OUT")
                getgoing();
            })

        }
        else {
                getgoing();
        }


    })
}
function debug(message,func){
    if(showDebug.toLowerCase()=="true"){
        console.log("------------------------"+func+'---------------------')
        console.log(message)
        console.log("------------------------"+func+'---------------------')
    }

}
setInterval(getgoing,10000);