@tool
extends Sprite2D

signal interacted

# 0保卫科 1二楼内侧
@export_enum("保卫科", "二楼内侧") var id := 0
@export var enabled := true:
	set(val):
		enabled = val
		if is_node_ready():
			sign_mark.enabled = val
@export var unrevealed_sign_texture: Texture2D
@export var unmatched_sign_texture: Texture2D
@export var matched_sign_texture: Texture2D

@onready var sfx_invalid = $SfxInvalid as Sfx
@onready var sfx_success = $SfxSuccess as Sfx
@onready var sfx_bgm = $SfxBgm as AudioStreamPlayer
@onready var sign_mark = %Sign as Sign
@onready var area2d = %Area2D as Area2D

@onready var animated_sprite = $"小手" as AnimatedSprite2D

var ground_archive: GroundArchive

static var item_config_res = preload("res://asset/dialogue/item_description.dialogue")

# 当前小手手持的 prop
var holding_prop = "":
	set(val):
		holding_prop = val
		ground_archive.set_pair(name, "holding_prop", val)
# 是否手持纸杯电话
var is_holding_cup = false:
	set(val):
		is_holding_cup = val
		ground_archive.set_pair(name, "is_holding_cup", val)
# 锡纸是否在地上
var tin_coin_drop = false:
	set(val):
		tin_coin_drop = val
		ground_archive.set_pair(name, "tin_coin_drop", tin_coin_drop)
		if is_node_ready():
			coin.enabled = val
			if tin_coin_drop:
				coin.reset()
# 尝试互动的次数
var tried_times: int:
	set(val):
		tried_times = val
		ground_archive.set_pair(name, "tried_times", val)

var coin: Pickable2D


func _ready() -> void:
	if Engine.is_editor_hint():
		return
	area2d.body_entered.connect(_reset)
	area2d.body_exited.connect(_on_exit)
	sign_mark.interacted.connect(_on_interacted)
	sign_mark.cancel.connect(_on_cancel)
	sign_mark.base_scale = sign_mark.scale
	sign_mark.enabled = enabled

	# setup default value
	ground_archive = ArchiveManager.archive.ground_archive() as GroundArchive
	is_holding_cup = ground_archive.get_value(name, "is_holding_cup", false)
	holding_prop = ground_archive.get_value(name, "holding_prop", "")
	tried_times = ground_archive.get_value(name, "tried_times", 0)

	if holding_prop == "prop_弹珠":
		animated_sprite.play("小手_弹珠_idle")
	elif holding_prop == "prop_老虎钳":
		animated_sprite.play("小手_老虎钳_idle")
	elif is_holding_cup:
		animated_sprite.play("小手_纸杯_idle")
	elif tried_times > 0:
		animated_sprite.play("小手_show")


	coin = get_node("Pickable元宝")
	tin_coin_drop = ground_archive.get_value(name, "tin_coin_drop", false)
	coin.triggered.connect(func(): tin_coin_drop = false)


func _reset(_body = null) -> void:
	_reset_sign_testure_to_prop()
	var prop_hud = SceneManager.get_prop_hud() as PropHud
	if not prop_hud.current_item_changed.is_connected(_set_sign_texture_to_prop):
		prop_hud.current_item_changed.connect(_set_sign_texture_to_prop)


# 在场景中调用该方法，可以跳过小手初次交互的伸出过程
func do_first_interact(immediatelly := false):
	if immediatelly:
		animated_sprite.play("小手_idle")
	else:
		animated_sprite.play("小手_show")
	_reset_sign_testure_to_prop()


func _reset_sign_testure_to_prop():
	var key = SceneManager.get_current_prop(false)
	_set_sign_texture_to_prop(key)


# 根据当前 prop，调整 sign 所显示的 texture
func _set_sign_texture_to_prop(key):
	if tried_times == 0:
		# 首次交互前 unrevealed
		sign_mark.sprite2d.texture = unrevealed_sign_texture
		return
	sign_mark.sprite2d.texture = matched_sign_texture

func _on_exit(_body = null) -> void:
	# disconnect signal
	var prop_hud = SceneManager.get_prop_hud() as PropHud
	if prop_hud and prop_hud.current_item_changed.is_connected(_set_sign_texture_to_prop):
		prop_hud.current_item_changed.disconnect(_set_sign_texture_to_prop)


func _on_cancel(_body = null) -> void:
	if communicating:
		_quit_communicating()
		return


func _quit_communicating() -> void:
	sfx_bgm.stop()
	if sfx_bgm.finished.is_connected(_quit_communicating):
		sfx_bgm.finished.disconnect(_quit_communicating)
	communicating = false
	SceneManager.release_player()
	# 重置动画
	SceneManager.get_player().set_facing_direction(Vector2.ONE)
	animated_sprite.visible = true


var interact_mutex = Mutex.new()

var communicating = false


func _on_interacted() -> void:
	if not interact_mutex.try_lock():
		return
	interacted.emit()
	tried_times += 1
	if tried_times == 1:
		do_first_interact(false)
		return
	if holding_prop != "":
		# 手持物品时，交互直接给玩家物品
		SceneManager.enable_prop_item(holding_prop)
		holding_prop = ""
		animated_sprite.play("小手_show")
		interact_mutex.unlock()
		return

	if is_holding_cup:
		# 对话
		if not communicating:
			communicating = true
			# # 走到指定地点
			# SceneManager.get_player().walk_to(Vector2(225, 98.0), 1.5)
			# await SceneManager.get_player().animation_finished
			animated_sprite.visible = false
			# 7 拿起纸杯 8 监听纸杯
			SceneManager.freeze_player(0, 7)
			SceneManager.get_player().force_play_animation("c00_吕萍_听纸杯")
			SceneManager.pop_debug_dialog_info("音效", "纸杯电话童谣")
			sfx_bgm.play()
			# 交互时，已经在对话中
			sfx_bgm.finished.connect(_quit_communicating, CONNECT_ONE_SHOT)
		else:
			_quit_communicating()
		interact_mutex.unlock()
		return

	var key = SceneManager.get_current_prop(false)
	var interacted_success = false
	SceneManager.freeze_player(0)

	# accept_tin_coin
	if key == "prop_锡箔元宝":
		interacted_success = true
		SceneManager.disable_prop_item("prop_锡箔元宝")
		if id == 1:
			# 叠成纸杯电话
			animated_sprite.play("小手_锡箔_hide")
			is_holding_cup = true
			SceneManager.pop_debug_dialog_info("美术", "叠成纸杯: 小手_锡箔_hide + 小手_纸杯_show + 小手_纸杯_idle")
			await get_tree().create_timer(2).timeout
			# 稍等片刻再给小鞋子
			SceneManager.enable_prop_item("prop_小鞋子1")
			ArchiveManager.set_global_entry("c02_mouse_follow_player", true)
			var node = get_node("../自动跟随的老鼠") as Node2D
			if node:
				node.visible = true
			else:
				printerr("小手已接受锡箔；自动跟随的老鼠节点不存在")
		else:
			# 丢下元宝
			animated_sprite.play("小手_锡箔_drop")
			# 先设置允许 pickable，然后再设置可见性，等待动画播完再显示
			tin_coin_drop = true
			coin.visible = false
			await get_tree().create_timer(1.5).timeout
			coin.visible = true

	# 是否允许老虎钳换弹珠
	var pliers_to_ball = ArchiveManager.get_global_value("c02_pliers_to_ball", false)
	if id == 0 and key == "prop_老虎钳" and pliers_to_ball:
		interacted_success = true
		SceneManager.disable_prop_item("prop_老虎钳")
		animated_sprite.play("小手_老虎钳_hide")
		SceneManager.pop_debug_dialog_info("美术", "小手_老虎钳_hide + 小手_弹珠_show + 小手_弹珠_idle")
		await get_tree().create_timer(1.5).timeout
		holding_prop = "prop_弹珠"
	elif id == 0 and key == "prop_弹珠" and not pliers_to_ball:
		interacted_success = true
		SceneManager.disable_prop_item("prop_弹珠")
		animated_sprite.play("小手_弹珠_hide")
		SceneManager.pop_debug_dialog_info("美术", "小手_弹珠_hide + 小手_老虎钳_show + 小手_老虎钳_idle")
		await get_tree().create_timer(1.5).timeout
		holding_prop = "prop_老虎钳"

	if interacted_success:
		# sfx_success.play()
		EventManager.prop_interacted(name, key, 1)
		_reset_sign_testure_to_prop()
	else:
		sfx_invalid.play()
		sign_mark.invalid_shake(matched_sign_texture, unmatched_sign_texture)

	SceneManager.release_player()
	interact_mutex.unlock()