import './plus-minus.imba'

let h =
	zero: do new Date("1970-01-01T00:00")
	max_size: do #ms ||= R.getters.size "3_0_0", 1 # 3 days

	validate: do |s|
		return R.getters.size("0_0_5", 1) if s <= h.zero!
		return new Date(h.max_size!) if s > h.max_size!
		s

	modify: do |what, n, date=R.param('size')|
		date["set{what}"]( date["get{what}"]() + n )
		h.validate(date)

	change: do |what, n, date=R.param('size')|
		h.save h.modify(*arguments)

	save: do |date|
		R.write 'size', date

	days: do |day=R.param('size')| day.getDate! - 1
	incr_day: do h.change "Date", 1
	decr_day: do h.change "Date", -1
	incr_h: do h.change "Hours", 1
	decr_h: do h.change "Hours", -1
	incr_min: do h.change "Minutes", 5
	decr_min: do h.change "Minutes", -5

	set_time: do |days, hour, min, date=h.zero!|
		date.setHours(hour, min, 0, 0)
		date.setDate(Number(days)+1)
		date

	format_d: do |n| "{n}{n > 1 ? "days" : "day"}"
	format_h: do |n| "{n}h"
	format_min: do |n| "{n}min"

export default h

R.setters.size = do |v| let s = "{h.days(v)}_{v.getHours!}_{v.getMinutes!}"; s if s!= "0_0_30"
R.getters.size = do |v, skip_validation|
	v ||= "0_0_30"
	let size = v.split('_')
	let date = h.set_time(*size)
	skip_validation ? date : h.validate(date)

tag slot-size-input
	<self[d:hflex jac:center]>
		console.log(R.param('size'))
		if h.days! > 0
			<plus-minus value=h.days! decorate=h.format_d decr=h.decr_day incr=h.incr_day>
		<plus-minus value=R.param('size').getHours!.toString! decorate=h.format_h decr=h.decr_h incr=h.incr_h>
		<plus-minus value=R.param('size').getMinutes!.toString! decorate=h.format_min decr=h.decr_min incr=h.incr_min>