# hair_dye_system.gd —— Metin2 40250 官方发型染色与漂白重塑系统 1:1
# 对照 40250 服务端 char_item.cpp:3540-3580
class_name HairDyeSystem
extends RefCounted

signal hair_dyed(color_id: int, color_name: String)
signal hair_bleached()

# 40250 官方染发道具 Vnum
const VNUM_BLEACH     := 70201 # 漂白水 (重置发色为 0, 清空冷却)
const VNUM_WHITE_DYE  := 70202 # 染发剂(白) -> color 1
const VNUM_BLONDE_DYE := 70203 # 染发剂(金) -> color 2
const VNUM_RED_DYE    := 70204 # 染发剂(红) -> color 3
const VNUM_BROWN_DYE  := 70205 # 染发剂(棕) -> color 4
const VNUM_BLACK_DYE  := 70206 # 染发剂(黑) -> color 5

# 颜色映射字典
const HAIR_COLORS: Dictionary = {
	0: "原色黑发(Default)",
	1: "雪原纯白(White)",
	2: "璀璨金黄(Blonde)",
	3: "烈火赤红(Red)",
	4: "深栗浅棕(Brown)",
	5: "曜石纯黑(Black)"
}

var current_hair_color: int = 0
var current_hair_style_id: int = 0 # 0 为基础原生发型，>= 1001 为时装发型
var last_dye_level: int = 0 # 记录上次染发时的角色等级

# 获取颜色名称
static func get_color_name(color_id: int) -> String:
	return HAIR_COLORS.get(color_id, "未知发色")

# 执行染发或漂白 (40250 char_item.cpp:3540-3580)
func dye_hair(inventory: Array, slot_index: int, player_level: int) -> Dictionary:
	if slot_index < 0 or slot_index >= inventory.size() or inventory[slot_index] == null:
		return {"ok": false, "reason": "INVALID_SLOT"}
	
	var item: Dictionary = inventory[slot_index]
	var item_vnum := int(item.get("vnum", 0))
	if item_vnum < VNUM_BLEACH or item_vnum > VNUM_BLACK_DYE:
		return {"ok": false, "reason": "NOT_A_HAIR_DYE", "msg": "此物品不是染发剂或漂白水！"}
	
	# 40250 官方规则：独立时装发型 (PART_HAIR >= 1001) 无法进行普通染色
	if current_hair_style_id >= 1001:
		return {"ok": false, "reason": "CANNOT_DYE_COSTUME_HAIR", "msg": "当前穿戴的特殊时装发型无法进行原生发色染色！"}
	
	# 40250 官方冷却规则：
	# last_dye_level == 0 || last_dye_level + 3 <= GetLevel() || item->GetVnum() == 70201
	var is_bleach: bool = (item_vnum == VNUM_BLEACH)
	if not is_bleach and last_dye_level > 0 and (last_dye_level + 3 > player_level):
		var req_lv := last_dye_level + 3
		return {
			"ok": false,
			"reason": "LEVEL_COOLDOWN_ACTIVE",
			"req_level": req_lv,
			"msg": "染发药水药效尚未散去！角色需达到 %d 级方可再次染色(漂白水除外)。" % req_lv
		}
	
	# 消耗 1 瓶染发剂
	var cnt := int(item.get("count", 1))
	if cnt > 1:
		item["count"] = cnt - 1
	else:
		inventory[slot_index] = null
	
	if is_bleach:
		# 漂白水重置发色为 0，并清空染色等级限制
		current_hair_color = 0
		last_dye_level = 0
		hair_bleached.emit()
		return {
			"ok": true,
			"is_bleach": true,
			"hair_color": 0,
			"color_name": get_color_name(0),
			"msg": "使用漂白水褪色成功！发色已恢复经典天然原色。"
		}
	else:
		current_hair_color = item_vnum - VNUM_BLEACH
		last_dye_level = player_level
		hair_dyed.emit(current_hair_color, get_color_name(current_hair_color))
		return {
			"ok": true,
			"is_bleach": false,
			"hair_color": current_hair_color,
			"color_name": get_color_name(current_hair_color),
			"last_dye_level": last_dye_level,
			"msg": "染发成功！角色秀发已焕新为【%s】。" % get_color_name(current_hair_color)
		}

# 序列化
func serialize() -> Dictionary:
	return {
		"current_hair_color": current_hair_color,
		"current_hair_style_id": current_hair_style_id,
		"last_dye_level": last_dye_level
	}

# 反序列化
func deserialize(data: Dictionary) -> void:
	current_hair_color = int(data.get("current_hair_color", 0))
	current_hair_style_id = int(data.get("current_hair_style_id", 0))
	last_dye_level = int(data.get("last_dye_level", 0))