Fix rendering of timeslots spanning two days

closes #328

Author: mic4ael

newdle/client/src/components/answer/Calendar.js

@@ -38,7 +38,7 @@ function calculateHeight(start, end, minHour, maxHour) {
     endMins = end.hours() * 60 + end.minutes();
   } else if (end.day() !== start.day()) {
     // the end of the slot is on another day so we will allow the slot to overflow
-    endMins = maxHour * 60 + end.minutes();
+    endMins = MAX_HOUR * 60 + end.hour() * 60 + end.minutes();
   }
 
   if (startMins < minHour * 60) {

newdle/client/src/util/date.js

@@ -46,6 +46,8 @@ export function getHourSpan(input) {
   } else if (minTimelineHour < defaultMinHour) {
     // shift
     return [minTimelineHour, minTimelineHour + defaultHourSpan];
+  } else if (maxTimelineHour > defaultMaxHour) {
+    return [defaultMinHour, maxTimelineHour];
   } else {
     return [defaultMinHour, defaultMaxHour];
   }
@@ -66,7 +68,7 @@ export function hourRange(start, end, step = 1, extendToNextDay = true) {
       if (extendToNextDay) {
         hours.push(it - 24);
       }
-      break;
+      continue;
     }
 
     hours.push(it);