Added histogram page

controllers/total/templates/histogram.pug

@@ -0,0 +1,11 @@
+extends ./total.pug
+
+block mistake
+    p.
+        If you think there is a mistake in this histogram, feel free to <a
+        href="mailto:thomas@forgione.fr">send me a mail</a> exaplaining what
+        are the problem so I can fix it. Thanks!
+
+block extrajs
+    script(src="/static/chart/Chart.min.js")
+    script(src="/static/js/histogram.js")

controllers/total/templates/total.pug

@@ -20,10 +20,11 @@ block content
             .col-2
     #result
 
-    p.
-        If you think there is a mistake in this table, feel free to
-        <a href="mailto:thomas@forgione.fr">send me a mail</a>
-        exaplaining what are the problem so I can fix it. Thanks!
+    block mistake
+        p.
+            If you think there is a mistake in this table, feel free to
+            <a href="mailto:thomas@forgione.fr">send me a mail</a>
+            exaplaining what are the problem so I can fix it. Thanks!
 
 block extracss
     style.

controllers/total/urls.js

@@ -5,4 +5,6 @@ module.exports = [
     url('/total-by-course/', 'totalByCourse', 'totalByCourse'),
     url('/total-table', 'totalTable', 'totalTable'),
     url('/total-table-by-course', 'totalTableByCourse', 'totalTableByCourse'),
+    url('/histogram', 'histogram', 'histogram'),
+    url('/histogram-data', 'histogramData', 'histogramData'),
 ]

controllers/total/views.js

@@ -3,6 +3,14 @@ const cal = require('calendar');
 const redirectIfNotLogged = require('auth/views').redirectIfNotLogged;
 const getUrl = require('create-url').getUrl;
 
+function compareStrings(a, b) {
+    if (a < b)
+        return -1;
+    if (a > b)
+        return 1;
+    return 0;
+}
+
 function computeUserTable(user, callback) {
 
     let result = {};
@@ -134,3 +142,54 @@ module.exports.totalTableByCourse = function(req, res, render, next) {
         render('totalTableByCourse.pug');
     });
 }
+
+module.exports.histogram = redirectIfNotLogged('histogram', function(req, res, render) {
+    render('histogram.pug');
+});
+
+module.exports.histogramData = function(req, res, render, next) {
+    if (req.session.user === undefined) {
+        res.status(404);
+
+        res.setHeader('Content-Type', 'text/html');
+
+        res.render(config.BASE_DIR + '/templates/404.pug', res.locals, function(err, result) {
+            if (err)
+                console.log(err);
+            res.send(result);
+        });
+        return;
+    }
+
+    cal.getCalendar(req.session.user, new Date(2000, 1, 1), new Date(3000, 1, 1), (calendar) => {
+
+        let histogram = {};
+
+        for (let event of calendar.events) {
+            let hours = event.startTime.getHours();
+            if (hours % 2 === 0) {
+                hours += 2;
+            } else {
+                hours += 1;
+            }
+            hours = hours.toString().padStart(2, '0');
+            let minutes = event.startTime.getMinutes().toString().padStart(2, '0');
+            let key = hours + ':' + minutes;
+
+            histogram[key] = histogram[key] || 0;
+            histogram[key]++;
+        }
+
+        let histogramArray = [];
+        for (let key in histogram) {
+            histogramArray.push({
+                time: key,
+                count: histogram[key],
+            });
+        }
+
+        histogramArray.sort((a, b) => compareStrings(a.time, b.time));
+        res.send(JSON.stringify(histogramArray));
+    });
+
+}