I've got a problem that I couldn't resolve. I'm using https://github.com/kmanley/golang-tuple to create tuples.
I've got a list of minutes:
minutes := int{0, 30} // Minutes are 0 and 30
And a four parameters: start, startBreak, stop, stopBreak:
start := tuple.NewTupleFromItems(9, 30) // It represents "9:30"
startBreak := tuple.NewTupleFromItems(12, 0) // It represents "12:00"
stop := tuple.NewTupleFromItems(21, 0) // It represents "21:00"
stopBreak := tuple.NewTupleFromItems(14, 30) // It represents "14:30"
I want to get a slice of tuples (hour, minutes) using all the minutes in the minutes slice and they must not be included in the range startBreak-stopBreak (it can be equal to startBreak or stopBreak, so the range will become 12:30, 13:00, 13:30, 14:00) and stop-start (it can be equal to start and stop, so the range will become 21:30, 22:00, 22:30, ..., 8:30, 9:00).
For example, using those four parameters, the final result will be:
9:30, 10:00, 10:30, 11:00, 11:30, 12:00, 14:30, 15:00, 15:30, 16:00, 16:30, 17:00, 17:30, 18:00, 18:30, 19:00, 19:30, 20:00, 20:30, 21:00
Here is a minimal code that demonstrates this, I did not put any data validation.
func periods(minutes, start, startBreak, stopBreak, stop *tuple.Tuple) (out []tuple.Tuple) {
// next() moves current to the next minute interval
i := 0
curr := tuple.NewTupleFromItems(start.Get(0), minutes.Get(0))
next := func() {
i = (i + 1) % minutes.Len()
curr.Set(1, minutes.Get(i))
if i == 0 {
curr.Set(0, curr.Get(0).(int)+1)
}
}
for ; curr.Le(stop); next() {
if (curr.Ge(start) && curr.Le(startBreak)) || (curr.Ge(stopBreak) && curr.Le(stop)) {
out = append(out, *curr.Copy())
}
}
return out
}