# wedding_marriage_system.gd —— Metin2 40250 官方结婚典礼与夫妻同心传送婚戒系统 1:1
# 对照 40250 服务端 wedding.cpp, wedding.h, marriage.h, char_item.cpp
class_name WeddingMarriageSystem
extends RefCounted

signal wedding_started(spouse_name: String)
signal marriage_completed(spouse_name: String)
signal spouse_warped(target_map: String, target_pos: Vector2)
signal love_points_updated(new_points: int)
signal divorced()

const NPC_OLD_WOMAN        := 9006 # 老妪/月老花仙子 (Old Woman)
const WEDDING_MAP_INDEX    := 81   # 官方婚礼殿堂地图 (Wedding Map)

const VNUM_ENGAGEMENT_RING := 70301 # 订婚戒指
const VNUM_WEDDING_RING    := 70302 # 结婚戒指 (支持一键夫妻瞬间传送)
const VNUM_TUXEDO          := 11901 # 新郎礼服
const VNUM_WEDDING_DRESS   := 11903 # 新娘婚纱

const VNUM_RING_OF_LOVE    := 71070 # 爱情之戒 (夫妻经验加成)
const VNUM_BRACELET_OF_LOVE:= 71073 # 爱情手镯 (夫妻暴击加成)

# 婚姻状态
var is_married: bool = false
var spouse_name: String = ""
var love_points: int = 0 # 爱情度 (0~100)
var marry_timestamp: int = 0

# 举行结婚典礼 (40250 WeddingManager::Request)
func conduct_wedding(partner_name: String, inventory: Array, player_gender: String = "M") -> Dictionary:
	if is_married:
		return {"ok": false, "reason": "ALREADY_MARRIED", "msg": "已有婚姻关系，无法重复结婚！"}
	
	if partner_name.strip_edges().is_empty():
		return {"ok": false, "reason": "INVALID_PARTNER_NAME", "msg": "伴侣角色名称无效！"}
	
	# 检查背包是否拥有订婚戒指 (70301)
	var ring_slot := -1
	for i in range(inventory.size()):
		if inventory[i] != null and int(inventory[i].get("vnum", 0)) == VNUM_ENGAGEMENT_RING:
			ring_slot = i
			break
	
	if ring_slot == -1:
		return {"ok": false, "reason": "NO_ENGAGEMENT_RING", "msg": "需要持有【订婚戒指】(70301)方可举办婚礼！"}
	
	# 检查是否穿戴礼服或背包携带礼服
	var required_dress := VNUM_TUXEDO if player_gender == "M" else VNUM_WEDDING_DRESS
	var has_dress := false
	for i in range(inventory.size()):
		if inventory[i] != null and int(inventory[i].get("vnum", 0)) == required_dress:
			has_dress = true
			break
	
	if not has_dress:
		var dress_name := "新郎礼服" if player_gender == "M" else "新娘婚纱"
		return {"ok": false, "reason": "NO_WEDDING_DRESS", "msg": "举办婚礼需身着【%s】！" % dress_name}
	
	# 消耗订婚戒指，替换为正式的【结婚戒指】(70302)
	inventory[ring_slot] = {
		"vnum": VNUM_WEDDING_RING,
		"name": "结婚戒指",
		"spouse": partner_name,
		"count": 1
	}
	
	is_married = true
	spouse_name = partner_name
	love_points = 50 # 初始爱情度 50
	marry_timestamp = int(Time.get_unix_time_from_system())
	
	wedding_started.emit(spouse_name)
	marriage_completed.emit(spouse_name)
	
	return {
		"ok": true,
		"spouse_name": spouse_name,
		"love_points": love_points,
		"wedding_ring_slot": ring_slot,
		"msg": "恭喜！您与【%s】在月老见证下喜结良缘，获得【结婚戒指】！" % spouse_name
	}

# 使用结婚戒指瞬间传送至配偶身旁 (40250 char_item.cpp: Wedding Ring Warp)
func use_wedding_ring(spouse_online: bool, spouse_map: String, spouse_pos: Vector2, current_map: String) -> Dictionary:
	if not is_married:
		return {"ok": false, "reason": "NOT_MARRIED", "msg": "您当前未婚，无法使用结婚戒指！"}
	
	if not spouse_online:
		return {"ok": false, "reason": "SPOUSE_OFFLINE", "msg": "您的配偶当前不在线！"}
	
	# 禁止传送的特殊限制地图 (如竞技场、武斗场)
	if current_map == "Arena" or spouse_map == "Arena":
		return {"ok": false, "reason": "FORBIDDEN_MAP", "msg": "比武擂台区域禁止使用结婚戒指传送！"}
	
	spouse_warped.emit(spouse_map, spouse_pos)
	
	return {
		"ok": true,
		"target_map": spouse_map,
		"target_pos": spouse_pos,
		"msg": "心灵相通！已跨越山海传送至配偶【%s】身侧。" % spouse_name
	}

# 夫妻相伴增加爱情度 (40250 marriage.h: love_point)
func add_love_points(amount: int) -> void:
	if not is_married:
		return
	love_points = clampi(love_points + amount, 0, 100)
	love_points_updated.emit(love_points)

# 计算夫妻同心定情信物光环加成
func calculate_marriage_buff(has_ring_of_love: bool, has_bracelet_of_love: bool, is_near_spouse: bool) -> Dictionary:
	if not is_married:
		return {}
	
	var buffs: Dictionary = {}
	if is_near_spouse:
		# 夫妻在 10 米范围内享有同心基础增益
		buffs["couple_exp_bonus_pct"] = 10 + int(love_points / 10)
		
		if has_ring_of_love:
			buffs["couple_exp_bonus_pct"] += 20 # 爱情之戒再加 20%
		
		if has_bracelet_of_love:
			buffs["crit_pct"] = 10 # 爱情手镯增加 10% 暴击
	
	return buffs

# 协议离婚 (40250 WeddingManager: End Marriage)
func divorce(inventory: Array) -> Dictionary:
	if not is_married:
		return {"ok": false, "reason": "NOT_MARRIED"}
	
	# 回收/作废背包中的结婚戒指
	for i in range(inventory.size()):
		if inventory[i] != null and int(inventory[i].get("vnum", 0)) == VNUM_WEDDING_RING:
			inventory[i] = null
			break
	
	var old_spouse := spouse_name
	is_married = false
	spouse_name = ""
	love_points = 0
	marry_timestamp = 0
	
	divorced.emit()
	
	return {
		"ok": true,
		"old_spouse": old_spouse,
		"msg": "已与【%s】解除婚姻关系，收回结婚戒指。" % old_spouse
	}

# 序列化
func serialize() -> Dictionary:
	return {
		"is_married": is_married,
		"spouse_name": spouse_name,
		"love_points": love_points,
		"marry_timestamp": marry_timestamp
	}

# 反序列化
func deserialize(data: Dictionary) -> void:
	is_married = bool(data.get("is_married", false))
	spouse_name = str(data.get("spouse_name", ""))
	love_points = int(data.get("love_points", 0))
	marry_timestamp = int(data.get("marry_timestamp", 0))