extends Node3D
class_name CharacterManager

var character_map: Dictionary = {}
var character_idx: int        = 0
var player_id: int


func _ready():
	Global.character_mgr = self
	SignalManager.level_loading_start.connect(on_level_loading_start)
	SignalManager.level_loading_end.connect(on_level_loading_end)


func on_level_loading_start():
	var player: Character = get_player()
	if player:
		player.add_buff("freeze", -1)
		clear()


func on_level_loading_end():
	var player: Character = get_player()
	if player: player.remove_buff("freeze")


func create_character(cfg: CharacterCfg, team: Enum.ETeam, pos: Vector3, dir: Vector2 = Vector2.ZERO, owner_id: int = 0)->Character:
	var characterNode: Node
	match cfg.type:
		Enum.ECharacterType.Player: characterNode = ResourceManager.scene_player.instantiate()
		Enum.ECharacterType.Monster: characterNode = ResourceManager.scene_monster.instantiate()
		Enum.ECharacterType.Bullet: characterNode = ResourceManager.scene_bullet.instantiate()
		Enum.ECharacterType.Soul: characterNode = ResourceManager.scene_soul.instantiate()
		_: return null
	add_child(characterNode)
	characterNode.name = cfg.name
	var character: Character = characterNode as Character
	character_idx += 1
	character_map[character_idx]=character
	character.init(character_idx, cfg, team, owner_id)
	character.set_material(ResourceManager.material_character.duplicate(), ResourceManager.material_character_sub.duplicate())
	character.set_pos(pos)
	SignalManager.character_create.emit(character_idx, cfg.type, character.ui_pos())
	if int(cfg.type) == Enum.ECharacterType.Player:
		player_id = character_idx
	character.init_after()
	character.move_to(dir)
	if cfg.sub_character and cfg.sub_character_auto_create:
		var sub: Character = create_character(cfg.sub_character, team, pos, dir, character_idx )
		character.set_status("sub_character_id", sub.id())

	return character


func destroy_character(id: int) -> void:
	if not id in character_map:
		return
	var character_destroy: Character = character_map[id] as Character
	character_destroy.queue_free()
	character_map.erase(id)
	for key in character_map:
		var character: Character = character_map[key] as Character
		if character.target() == id:
			character.set_target(0)
	return


func clear() -> void:
	var destroy_list: Array[int] = []
	var player: Character        = get_player()
	for id in character_map:
		if id == player.id():
			continue
		if id == player.get_status("sub_character_id"):
			continue
		destroy_list.append(id)
	for id in destroy_list:
		SignalManager.character_die.emit(id)
		destroy_character(id)


func get_character(id: int) -> Character:
	if id in character_map:
		return character_map[id] as Character
	else:
		return null


func get_player() -> Character:
	return get_character(player_id)


func get_player_id() -> int:
	return player_id


func get_enemy_list(id: int) -> Array[Character]:
	var ret: Array[Character] = []
	var target: Character     = get_character(id)
	if !target:
		return ret
	for key in character_map:
		var character: Character = character_map[key] as Character
		if character.team() != target.team():
			ret.append(character)
	return ret