/* this service handles all the authentication between client and server */
app.service('chartService', function () {
    //  send a login information to server 
    //  upon success, set sessionToken and store data in dataService
    //  upon failed, return error 
    this.username = ""; 
    this.getUsername = function(){
        return this.username;
    }

    this.setUsername = function(setTo){
        this.username = setTo;
    }

    
    this.createChart = function(){
        var ctx = document.getElementById("myChart");
        var myChart = new Chart(ctx, {
            type: 'line',
            data: {
                labels: ["Red", "Blue", "Yellow", "Green", "Purple", "Orange"],
                datasets: [{
                    label: '# of Votes',
                    data: [12, 19, 3, 5, 2, 3],
                    backgroundColor: [
                        'rgba(255, 99, 132, 0.2)',
                        'rgba(54, 162, 235, 0.2)',
                        'rgba(255, 206, 86, 0.2)',
                        'rgba(75, 192, 192, 0.2)',
                        'rgba(153, 102, 255, 0.2)',
                        'rgba(255, 159, 64, 0.2)'
                    ],
                    borderColor: [
                        'rgba(255,99,132,1)',
                        'rgba(54, 162, 235, 1)',
                        'rgba(255, 206, 86, 1)',
                        'rgba(75, 192, 192, 1)',
                        'rgba(153, 102, 255, 1)',
                        'rgba(255, 159, 64, 1)'
                    ],
                    borderWidth: 1
                }]
            },
            options: {
            responsive: true,
                scales: {
                    yAxes: [{
                        ticks: {
                            beginAtZero:true
                        }
                    }]
                }
            }
        });
    }
});