Add next date calculation

src/components/input/datepicker.vue

@@ -150,6 +150,31 @@ export default {
 		setDate(date) {
 			console.log(date)
 		},
+		getDayIntervalFromString(date) {
+
+			const currentDay = (new Date()).getDay()
+
+			switch(date) {
+				case 'today':
+					return 0
+				case 'tomorrow':
+					return 1
+				case 'nextMonday':
+					// Monday is 1, so we calculate the distance to the next 1
+					return (7 + currentDay - 1) %  7
+				case 'thisWeekend':
+					// Saturday is 6 so we calculate the distance to the next 6
+					return (7 + currentDay - 6) %  7
+				case 'laterThisWeek':
+					return 2
+				case 'laterNextWeek':
+					return 0
+				case 'nextWeek':
+					return 7
+				default: 
+					return 0;
+			}
+		},
 	},
 }
 </script>