extends SimulationKernel

signal phase_changed(phase: Phase)

enum Phase {
	MORNING,
	DAY,
	EVENING,
	NIGHT,
}

var _phase := Phase.MORNING

func _ready() -> void:
	_phase = get_phase()
	super._ready()

func reset(start_day := 1, start_hour := 6, start_minute := 0) -> void:
	super.reset(start_day, start_hour, start_minute)
	_phase = get_phase()

func advance_one_minute() -> void:
	super.advance_one_minute()
	var next_phase := get_phase()
	if next_phase != _phase:
		_phase = next_phase
		phase_changed.emit(_phase)

func get_phase() -> Phase:
	var hour := get_hour()
	if hour >= 6 and hour < 10:
		return Phase.MORNING
	if hour >= 10 and hour < 16:
		return Phase.DAY
	if hour >= 16 and hour < 20:
		return Phase.EVENING
	return Phase.NIGHT

func formatted_time() -> String:
	return "Day %d  %02d:%02d" % [day, get_hour(), get_minute()]