extends Node
class_name Modifier

@export var time_to_kill : float = 30.0
@export var percent_of_targets : float = 1.0

@onready var level_node: Node3D = $"../../Level"
@onready var scene_parent: Node3D = $"../.."
@onready var marker = preload("res://enemyTargetMarker.tscn")
@onready var level_control = get_tree().current_scene

var target_enemy
var total_targets
var active = false
var timer

func _ready() -> void:
	await level_node.all_enemies_spawned
	SignalBus.connect("enemy_killed",check_killed_target)
	SignalBus.connect("player_left_tube",begin_activity)
	timer = time_to_kill
	scene_parent.tube_top.switch.active = false
	scene_parent.tube_top.switch.label.text = str("Kill all vip \n targets to exit")

func begin_activity():
	select_random_enemy()

func _process(delta: float) -> void:
	if active:
		if target_enemy != null:
			if timer > 0:
				timer -= delta
				update_timer("kill target")
			else:
				level_control.last_hit = target_enemy
				level_control.die()
				active = false
		else:
			select_random_enemy()

func update_timer(label):
	var rounded_timer = round(timer)
	SignalBus.emit_signal("ui_timer_update",label,timer)

func check_killed_target(enemy):
	print("ENEMY KILLED : ",enemy)
	if enemy == target_enemy:
		timer = time_to_kill
		target_enemy = null
		print("TARGET ENEMY : ",target_enemy)
		select_random_enemy()

func add_marker_to_enemy():
	if target_enemy != null:
		var instance_marker = marker.instantiate()
		target_enemy.add_child(instance_marker)
		instance_marker.global_position = target_enemy.global_position

func select_random_enemy():
	var level_stuff = level_node.get_children()
	var enemies = []
	for node in level_stuff:
		print(node)
		if node is Enemy:
			enemies.append(node)
	
	if enemies.size() > 0:
		target_enemy = enemies.pick_random()
		add_marker_to_enemy()
		active = true
		print("TARGET ENEMY : ",target_enemy.name)
	else:
		activity_completed()
		SignalBus.emit_signal("ui_timer_visibility",false)

func activity_completed():
	scene_parent.tube_top.switch.active = true