Add prev and next button in timetable

src/routes/uonetplus-opiekun.js

@@ -48,7 +48,11 @@ router.get("/Default/123456/Lekcja(\.mvc|)/PlanLekcji", (req, res) => {
     res.render("opiekun/plan-lekcji", {
         title: "Witryna ucznia i rodzica – Paln Lekcji",
         data: require("../../data/opiekun/plan-lekcji.json"),
-        weekDays: converter.getWeekDaysFrom(req.query.data)
+        weekDays: converter.getWeekDaysFrom(req.query.data),
+        tics: {
+            prev: converter.getPrevTick(req.query.data),
+            next: converter.getNextTick(req.query.data)
+        }
     })
 });
 

src/utils/converter.js

@@ -1,3 +1,5 @@
+const WEEK_TICK = 6048000000000;
+
 function getDateFromTick(tick) {
     if (tick === '' || tick === undefined) {
         return getMonday(new Date());
@@ -6,6 +8,10 @@ function getDateFromTick(tick) {
     return new Date((tick - 621355968000000000) / 10000);
 }
 
+function getTickFromDate(date) {
+    return (date.getTime() * 10000) + 621355968000000000;
+}
+
 function formatDate(date) {
     return date.getDate() + "." + (date.getMonth() + 1) + "." + date.getFullYear();
 }
@@ -35,5 +41,17 @@ function getWeekDaysFrom(tick) {
     return days;
 }
 
+function getPrevTick(tick) {
+    tick = tick ? tick : getTickFromDate(new Date());
+    return parseInt(tick) - WEEK_TICK;
+}
+
+function getNextTick(tick) {
+    tick = tick ? tick : getTickFromDate(new Date());
+    return parseInt(tick) + WEEK_TICK;
+}
+
 exports.getDateString = getDateFromTick;
 exports.getWeekDaysFrom = getWeekDaysFrom;
+exports.getPrevTick = getPrevTick;
+exports.getNextTick = getNextTick;

src/views/opiekun/plan-lekcji.pug

@@ -1,8 +1,14 @@
 extends layout
 
+mixin nav
+    .navigation
+        a.button-prev(href="/Default/123456/Lekcja.mvc/PlanLekcji?data=" + tics.prev) Poprzedni tydzień
+        a.button-next(href="/Default/123456/Lekcja.mvc/PlanLekcji?data=" + tics.next) Następny tydzień
+
 append content
     main.mainContainer
         h1 Plan lekcji
+        +nav
         div
             table.presentData
                 thead
@@ -91,7 +97,7 @@ append content
                                                 span
                                                 span= day.teacher
                                                 span= day.room
-
+    +nav
 
     .description
         div