extends Control

const PREFIX_LABELS := "[color=black]%s"

@export var images:Dictionary[StringName, Texture2D] = {
	&"rest": preload("res://assets/lemon_rest.tres"),
	&"longrest": preload("res://assets/lemon_rest.tres"),
	&"run": preload("res://assets/lemon_run.tres")
}

@export var time_label:RichTextLabel
@export var realtime_label:RichTextLabel
@export var rest_label:RichTextLabel
@export var timer:Timer
@export var image:TextureRect
var context:PomodoroContext
var realtime_since_start:float = 0.0
@onready var sfx:AudioStreamPlayer = $SFX

@export var edits:Dictionary[StringName,TextEdit] = {}

class PomodoroContext:
	var current_state := &"run"
	var workmins:float = 25.0
	var restmins:float = 10.0
	var longrestmins:float = 30.0
	var remaining_rests := 0
	var initial_rests := 4
	
	func _init(_rests:=4, _workmins:=25, _rest_mins:=10, _longrestmins:=30)->void:
		self.workmins = _workmins
		self.restmins = _rest_mins
		self.longrestmins = _longrestmins
		self.remaining_rests = _rests
		self.initial_rests = _rests
		self.current_state = &"run"
	
	func get_state_timer(state:StringName)->float:
		match(state):
			&"run": return workmins * 60.0
			&"rest": return restmins * 60.0
			&"longrest": return longrestmins * 60.0
		push_error("What did you even do.")
		return 0.0 # you fucked up.
	
	func increment_phase()->void:
		match(current_state):
			&"run":
				remaining_rests -= 1
				current_state = &"rest" \
					if remaining_rests > 0 \
					else &"longrest"
			&"longrest":
				# reset
				remaining_rests = initial_rests
				current_state = &"run"
			&"rest":
				current_state = &"run"


var state_id:StringName = &"rest"


func _process(delta: float) -> void:
	if not context: return
	time_label.text = PREFIX_LABELS % get_clock_string()
	rest_label.text = PREFIX_LABELS % str(context.remaining_rests)
	realtime_since_start += delta
	realtime_label.text = "[color=red]%s" % \
		Time.get_time_string_from_unix_time(realtime_since_start) 

func get_from_menus()->PomodoroContext:
	return PomodoroContext.new(
		4,
		int(edits[&"run"].text),
		int(edits[&"rest"].text),
		int(edits[&"longrest"].text))


func on_clock_start()->void:
	realtime_since_start = 0.0
	context = get_from_menus()
	timer.start(context.get_state_timer(context.current_state))
	image.texture = images[context.current_state]


func get_clock_string()->String:
	return Time.get_time_string_from_unix_time(timer.time_left) 


func _on_timeout() -> void:
	context.increment_phase()
	timer.start(context.get_state_timer(context.current_state))
	image.texture = images[context.current_state]
	sfx.play()