extends Node3D
class_name StatusEffector

@export var hbox : HBoxContainer
@export var enemy : EnemyController

var icon_scene = preload("res://Scenes/status_icon.tscn")
var immune : Array[StatusEffect] = []
var effects = {}
var icons = {}


func _process(delta: float) -> void:
	for effect in effects:
		if effects[effect] == 0:
			continue
		effect.time_since_proc += delta
		effect.time_existed += delta
		if effect.stats.duration > 0.0 and effect.time_existed >= effect.stats.duration:
			effect.time_existed -= effect.stats.duration
			effects[effect] -= 1
			effect.on_removed(enemy, effects)
		if effects[effect] == 0:
			icons[effect].set_visible(false)
		if effect.time_since_proc >= effect.stats.proc_cd:
			effect.proc(enemy, effects[effect], effects)
			effect.time_since_proc -= effect.stats.proc_cd


func force_proc(effect_to_proc : StatusEffect):
	for effect in effects:
		if effect.stats == effect_to_proc.stats:
			effect.proc(enemy, effects[effect], effects)


func add_effect(new_effect : StatusEffect):
	for effect in immune:
		if effect.stats == new_effect.stats:
			return
			
	var existing_effect
	for effect in effects:
		if effect.stats == new_effect.stats:
			existing_effect = effect
	if !existing_effect:
		existing_effect = new_effect
		effects[new_effect] = 0
		var icon = icon_scene.instantiate()
		icon.texture = new_effect.stats.icon
		icon.set_visible(false)
		icons[new_effect] = icon
		hbox.add_child(icon)
	
	if existing_effect.stats.max_stacks == 0 or effects[existing_effect] < existing_effect.stats.max_stacks:
		existing_effect.on_attached(enemy, effects)
		icons[existing_effect].set_visible(true)
		effects[existing_effect] += 1
	existing_effect.time_existed = 0.0
	if existing_effect.stats.max_stacks != 0 and effects[existing_effect] > existing_effect.stats.max_stacks:
		effects[existing_effect] = existing_effect.stats.max_stacks