/**
 * This is the first script called by the enrollment demographics age page.  It loads
 * the libraries and kicks off the application.
 */

require(['load/init-page'], function(page) {
    'use strict';

    require(['underscore', 'views/data-table-view', 'views/histogram-view'],
        function(_, DataTableView, HistogramView) {
            // used in the table to show ages above this are binned--displayed as "100+"
            var maxNumber = 100,
                ageChart = new HistogramView({
                    el: '#enrollment-chart-view',
                    model: page.models.courseModel,
                    modelAttribute: 'ages',
                    excludeData: ['Unknown'],
                    trends: [{
                        title: gettext('Number of Learners'),
                        color: 'rgb(58, 162, 224)',
                        maxNumber: maxNumber
                    }],
                    x: {key: 'age'},
                    y: {key: 'count'},
                    // Translators: <%=value%> will be replaced with an age.
                    interactiveTooltipHeaderTemplate: _.template(gettext('Age: <%=value%>'))
                }),
                ageTable = new DataTableView({
                    el: '[data-role=enrollment-table]',
                    model: page.models.courseModel,
                    modelAttribute: 'ages',
                    columns: [
                        {key: 'age', title: gettext('Age'), type: 'maxNumber', maxNumber: maxNumber},
                        {key: 'count', title: gettext('Number of Learners'), type: 'number', className: 'text-right'},
                        {key: 'percent', title: gettext('Percent of Total'), type: 'percent', className: 'text-right'}
                    ],
                    sorting: ['-percent']
                });
            ageChart.renderIfDataAvailable();
            ageTable.renderIfDataAvailable();
        });
});
