package sentio

import "time"

type Clock interface {
	Now() time.Time
	After(d time.Duration) <-chan time.Time
}

type ClockUTC struct {
}

func (t ClockUTC) Now() time.Time {
	return time.Now().In(time.UTC)
}

func (t ClockUTC) After(d time.Duration) <-chan time.Time {
	return time.After(d)
}

type ClockNY struct {
	location *time.Location
}

func NewClockNY() (Clock, error) {
	l, err := time.LoadLocation("America/New_York")
	if err != nil {
		return nil, err
	}

	return ClockNY{
		location: l,
	}, nil
}

func (t ClockNY) Now() time.Time {
	return time.Now().In(t.location)
}

func (t ClockNY) After(d time.Duration) <-chan time.Time {
	return time.After(d)
}

type StubClock struct {
	Clock time.Time
}

func (t StubClock) Now() time.Time {
	return t.Clock.In(time.UTC)
}

func (t StubClock) After(d time.Duration) <-chan time.Time {
	return time.After(d)
}