class_name BurstComponent
extends Node

signal burst_changed(burst_ready: bool, active: bool, cooldown: int)

const BURST_EFFECT_PATH := "res://resources/effects/effect_burst_power.tres"

@export var active_beats := 16
@export var cooldown_beats := 4

var burst_ready := false
var active := false
var cooldown := 0
var _beats_left := 0
@onready var effect_container: Node = get_node_or_null("../EffectContainer")


func _ready() -> void:
	var rhythm := get_tree().root.get_node_or_null("RhythmManager")
	if rhythm != null and not rhythm.is_connected("beat_ticked", _on_beat_ticked):
		rhythm.connect("beat_ticked", _on_beat_ticked)


func set_ready(value: bool) -> void:
	if active or cooldown > 0:
		burst_ready = false
	else:
		burst_ready = value
	burst_changed.emit(burst_ready, active, cooldown)


func activate() -> bool:
	if not burst_ready or active or cooldown > 0:
		return false
	burst_ready = false
	active = true
	_beats_left = active_beats
	_apply_burst_effect()
	burst_changed.emit(burst_ready, active, cooldown)
	return true


func damage_mult(_action: Resource = null) -> float:
	return _effect_stat_multiplier(&"damage_mult")


func cost_mult(_action: Resource = null) -> float:
	return _effect_stat_multiplier(&"cost_mult")


func move_mult(_action: Resource = null) -> float:
	return 1.0


func _on_beat_ticked(_beat_index: int) -> void:
	if active:
		_beats_left -= 1
		if _beats_left <= 0:
			active = false
			cooldown = cooldown_beats
			burst_changed.emit(burst_ready, active, cooldown)
	elif cooldown > 0:
		cooldown -= 1
		burst_changed.emit(burst_ready, active, cooldown)


func _apply_burst_effect() -> void:
	if effect_container == null:
		effect_container = get_node_or_null("../EffectContainer")
	if effect_container != null and effect_container.has_method("add_effect"):
		var burst_effect: Resource = load(BURST_EFFECT_PATH) if ResourceLoader.exists(BURST_EFFECT_PATH) else null
		if burst_effect != null:
			effect_container.call("add_effect", burst_effect, &"burst")


func _effect_stat_multiplier(stat: StringName) -> float:
	if not active:
		return 1.0
	if effect_container == null:
		effect_container = get_node_or_null("../EffectContainer")
	if effect_container != null and effect_container.has_method("stat_multiplier"):
		return float(effect_container.call("stat_multiplier", stat, null))
	return 1.0