# marriage_system.gd —— Metin2 40250 结婚戒指与伴侣瞬移传送系统 1:1
# 对照 40250 服务端 wedding.cpp, char_item.cpp (Wedding Ring 70301, NPC 20017 Musician)
class_name MarriageSystem
extends RefCounted

signal couple_warped(target_map: String, target_pos: Vector3)

const NPC_MUSICIAN := 20017 # 月下老人 / 乐师
const ITEM_WEDDING_RING := 70301 # 结婚戒指
const WARP_SP_COST := 50 # 每次传送消耗 50 SP
const WARP_COOLDOWN := 180.0 # 3 分钟传送冷却

# 禁止传送进入的特殊副本/区域
const FORBIDDEN_MAPS := ["deviltower_f7", "deviltower_f8", "deviltower_f9", "oxevent"]

var is_married: bool = false
var spouse_name: String = ""
var love_points: int = 0 # 0 ~ 100%
var warp_cooldown: float = 0.0

# 在月下老人处登记结婚 (wedding.cpp)
func marry(player_name: String, partner_name: String, ring_item: Dictionary, player_level: int) -> Dictionary:
	if is_married:
		return {"ok": false, "reason": "ALREADY_MARRIED", "msg": "你已经结过婚了！"}
	if player_level < 25:
		return {"ok": false, "reason": "LEVEL_TOO_LOW", "msg": "角色等级未满 25 级，无法缔结婚约！"}

	var vnum: int = int(ring_item.get("vnum", 0))
	if vnum != ITEM_WEDDING_RING:
		return {"ok": false, "reason": "NO_WEDDING_RING", "msg": "缔结婚约必须携带结婚戒指！"}

	is_married = true
	spouse_name = partner_name
	love_points = 50 # 初始爱意值 50%
	warp_cooldown = 0.0

	# 戒指上刻录伴侣名字
	ring_item["inscribed_name"] = partner_name
	ring_item["is_bound"] = true

	return {
		"ok": true,
		"spouse_name": spouse_name,
		"love_points": love_points,
		"msg": "恭喜！你与【%s】在月下老人的见证下正式结为夫妻！" % spouse_name
	}

# 离婚解除婚约
func divorce() -> Dictionary:
	if not is_married:
		return {"ok": false, "reason": "NOT_MARRIED"}

	var old_spouse = spouse_name
	is_married = false
	spouse_name = ""
	love_points = 0
	warp_cooldown = 0.0

	return {"ok": true, "msg": "已与【%s】解除婚姻关系。" % old_spouse}

# 增加爱意值
func add_love_points(amount: int) -> int:
	if is_married:
		love_points = clampi(love_points + amount, 0, 100)
	return love_points

# 夫妻瞬移传送 (char_item.cpp:UseItemEx 70301)
func warp_to_spouse(current_sp: int, spouse_location: Dictionary, is_dead: bool) -> Dictionary:
	if not is_married:
		return {"ok": false, "reason": "NOT_MARRIED", "msg": "你尚未结婚，无法使用夫妻传送！"}
	if is_dead:
		return {"ok": false, "reason": "PLAYER_DEAD", "msg": "死亡状态下无法进行传送！"}
	if warp_cooldown > 0.0:
		return {"ok": false, "reason": "COOLDOWN_ACTIVE", "remaining": warp_cooldown, "msg": "结婚戒指传送冷却中！"}
	if current_sp < WARP_SP_COST:
		return {"ok": false, "reason": "NOT_ENOUGH_SP", "msg": "传送所需内力值不足 (需要 %d SP)！" % WARP_SP_COST}

	if spouse_location.is_empty() or not bool(spouse_location.get("is_online", false)):
		return {"ok": false, "reason": "SPOUSE_OFFLINE", "msg": "伴侣当前不在线！"}

	var map_id: String = String(spouse_location.get("map", ""))
	if map_id in FORBIDDEN_MAPS:
		return {"ok": false, "reason": "FORBIDDEN_ZONE", "msg": "伴侣当前处于特殊封闭区域，无法瞬移传送到其身边！"}

	var pos: Vector3 = spouse_location.get("pos", Vector3.ZERO)

	# 扣除 SP 并进入冷却
	warp_cooldown = WARP_COOLDOWN
	couple_warped.emit(map_id, pos)

	return {
		"ok": true,
		"target_map": map_id,
		"target_pos": pos,
		"sp_cost": WARP_SP_COST,
		"cooldown": WARP_COOLDOWN,
		"msg": "心有灵犀！正在瞬间传送到伴侣身边..."
	}

# 逐帧更新冷却
func update(dt: float) -> void:
	if warp_cooldown > 0.0:
		warp_cooldown = maxf(0.0, warp_cooldown - dt)

func get_info() -> Dictionary:
	return {
		"is_married": is_married,
		"spouse_name": spouse_name,
		"love_points": love_points,
		"warp_cooldown": warp_cooldown
	}