# boss_summon_scroll_system.gd —— Metin2 40250 官方首领降临与魔石/矿脉召唤卷轴系统 1:1
# 100% 对照 40250 服务端 special_item_group.txt, char_item.cpp (ITEM_GIFTBOX), char_manager.cpp
class_name BossSummonScrollSystem
extends RefCounted

signal boss_summoned(mob_vnum: int, mob_name: String, spawn_pos: Vector2, is_aggressive: bool)
signal metin_summoned(metin_vnum: int, metin_name: String, spawn_pos: Vector2, level: int)
signal ore_vein_summoned(vein_vnum: int, vein_name: String, spawn_pos: Vector2)
signal summon_failed(reason: String)

# ==========================================
# 40250 官方首领召唤卷轴 (Boss Summon Scrolls)
# 对应 special_item_group.txt Vnum 71036 ~ 71043
# ==========================================
const BOSS_SCROLLS: Dictionary = {
	71036: {
		"name": "兽人首领召唤卷轴",
		"tr_name": "Kağıt-Ork Şefi",
		"mob_vnum": 691,
		"mob_name": "兽人首领 (Orc Chief)",
		"level": 50,
		"rank": 4, # BOSS
		"is_aggressive": true
	},
	71037: {
		"name": "密教首领召唤卷轴",
		"tr_name": "Kağıt-Karanlık Lider",
		"mob_vnum": 791,
		"mob_name": "黑风教主/密教首领 (Dark Leader)",
		"level": 54,
		"rank": 4,
		"is_aggressive": true
	},
	71038: {
		"name": "蜘蛛女王召唤卷轴",
		"tr_name": "Kağıt-Kraliçe Örümcek",
		"mob_vnum": 2091,
		"mob_name": "蜘蛛女王 (Spider Queen)",
		"level": 60,
		"rank": 4,
		"is_aggressive": true
	},
	71039: {
		"name": "沙漠巨龟召唤卷轴",
		"tr_name": "Kağıt-Kaplumbağa",
		"mob_vnum": 2191,
		"mob_name": "沙漠巨龟 (Giant Desert Tortoise)",
		"level": 67,
		"rank": 4,
		"is_aggressive": true
	},
	71040: {
		"name": "烈焰魔王召唤卷轴",
		"tr_name": "Kağıt-Alev Kral",
		"mob_vnum": 2206,
		"mob_name": "烈焰魔王 (Flame King)",
		"level": 73,
		"rank": 4,
		"is_aggressive": true
	},
	71041: {
		"name": "九尾狐召唤卷轴",
		"tr_name": "Kağıt-Dokuz Kuyruk",
		"mob_vnum": 1901,
		"mob_name": "九尾狐仙 (Nine Tails)",
		"level": 72,
		"rank": 4,
		"is_aggressive": true
	},
	71042: {
		"name": "恶魔之王召唤卷轴",
		"tr_name": "Kağıt-Şeytan Kral",
		"mob_vnum": 1091,
		"mob_name": "恶魔之王 (Demon King)",
		"level": 75,
		"rank": 4,
		"is_aggressive": true
	},
	71043: {
		"name": "虎灵妖兽召唤卷轴",
		"tr_name": "Sarı Kaplan H. Kağıdı",
		"mob_vnum": 1304,
		"mob_name": "黄虎幽灵 (Tiger Ghost)",
		"level": 75,
		"rank": 4,
		"is_aggressive": true
	}
}

# ==========================================
# 40250 官方魔石召唤卷轴 (Metin Summon Scrolls)
# 对应 special_item_group.txt Vnum 71080 ~ 71082
# ==========================================
const METIN_SCROLLS: Dictionary = {
	71080: {
		"name": "初级魔石召唤卷",
		"tr_name": "Metin Taşı Çağırma Kağıdı (K)",
		"pool": [
			{"vnum": 8001, "name": "悲哀之石 (Metin of Sorrow)", "level": 5},
			{"vnum": 8002, "name": "战斗之石 (Metin of Combat)", "level": 10},
			{"vnum": 8003, "name": "会战之石 (Metin of Battle)", "level": 15},
			{"vnum": 8004, "name": "贪婪之石 (Metin of Greed)", "level": 20},
			{"vnum": 8005, "name": "漆黑之石 (Metin of Black)", "level": 25}
		]
	},
	71081: {
		"name": "中级魔石召唤卷",
		"tr_name": "Metin Taşı Çağırma Kağıdı (O)",
		"pool": [
			{"vnum": 8006, "name": "黑暗之石 (Metin of Darkness)", "level": 30},
			{"vnum": 8007, "name": "嫉妒之石 (Metin of Jealousy)", "level": 35},
			{"vnum": 8008, "name": "灵魂之石 (Metin of Soul)", "level": 40},
			{"vnum": 8009, "name": "阴影之石 (Metin of Shadow)", "level": 45},
			{"vnum": 8010, "name": "强韧之石 (Metin of Toughness)", "level": 50}
		]
	},
	71082: {
		"name": "高级魔石召唤卷",
		"tr_name": "Metin Taşı Çağırma Kağıdı (Z)",
		"pool": [
			{"vnum": 8011, "name": "恶魔之石 (Metin of Devil)", "level": 55},
			{"vnum": 8012, "name": "陨落之石 (Metin of Fall)", "level": 60},
			{"vnum": 8013, "name": "死者之石 (Metin of Death)", "level": 65},
			{"vnum": 8014, "name": "屠杀之石 (Metin of Murder)", "level": 70},
			{"vnum": 8024, "name": "狂风之石 (Metin of Pung-Ma)", "level": 75},
			{"vnum": 8025, "name": "魔岩之石 (Metin of Ma-An)", "level": 80},
			{"vnum": 8026, "name": "斗击之石 (Metin of Tu-Gyuk)", "level": 85},
			{"vnum": 8027, "name": "绝望之石 (Metin of Jeon-Un)", "level": 90}
		]
	}
}

# ==========================================
# 40250 官方矿脉召唤卷轴 (Ore Vein Scrolls)
# 对应 special_item_group.txt Vnum 71057 ~ 71067
# ==========================================
const ORE_VEIN_SCROLLS: Dictionary = {
	71057: {"mob_vnum": 20049, "name": "钻石矿脉 (Diamond Vein)"},
	71058: {"mob_vnum": 20050, "name": "琥珀矿脉 (Amber Vein)"},
	71059: {"mob_vnum": 20051, "name": "木化石矿脉 (Fossil Wood Vein)"},
	71060: {"mob_vnum": 20052, "name": "铜矿脉 (Copper Vein)"},
	71061: {"mob_vnum": 20053, "name": "银矿脉 (Silver Vein)"},
	71062: {"mob_vnum": 20054, "name": "金矿脉 (Gold Vein)"},
	71063: {"mob_vnum": 20055, "name": "翡翠矿脉 (Jade Vein)"},
	71064: {"mob_vnum": 20056, "name": "黑檀木矿脉 (Ebony Vein)"},
	71065: {"mob_vnum": 20057, "name": "珍珠矿脉 (Pearl Vein)"},
	71066: {"mob_vnum": 20058, "name": "白金矿脉 (White Gold Vein)"},
	71067: {"mob_vnum": 20059, "name": "水晶矿脉 (Crystal Vein)"}
}

# 当前已召唤生成的实体记录列表
var _active_summoned_entities: Array[Dictionary] = []

# 判断是否是 40250 原版召唤卷轴
func is_summon_scroll(vnum: int) -> bool:
	return BOSS_SCROLLS.has(vnum) or METIN_SCROLLS.has(vnum) or ORE_VEIN_SCROLLS.has(vnum)

# 获取召唤卷轴类型类别
func get_scroll_category(vnum: int) -> String:
	if BOSS_SCROLLS.has(vnum):
		return "boss"
	elif METIN_SCROLLS.has(vnum):
		return "metin"
	elif ORE_VEIN_SCROLLS.has(vnum):
		return "ore_vein"
	return ""

# 使用召唤卷轴
func use_summon_scroll(
	inventory: Array,
	slot_index: int,
	player_pos: Vector2,
	is_in_safe_zone: bool,
	forced_choice_idx: int = -1
) -> Dictionary:
	if slot_index < 0 or slot_index >= inventory.size():
		summon_failed.emit("INVALID_SLOT")
		return {"ok": false, "reason": "INVALID_SLOT", "msg": "无效的背包物品格位！"}
	
	var item = inventory[slot_index]
	if item == null:
		summon_failed.emit("EMPTY_SLOT")
		return {"ok": false, "reason": "EMPTY_SLOT", "msg": "指定格位没有任何道具！"}
	
	var vnum = int(item.get("vnum", 0))
	var category = get_scroll_category(vnum)
	if category == "":
		summon_failed.emit("NOT_A_SUMMON_SCROLL")
		return {"ok": false, "reason": "NOT_A_SUMMON_SCROLL", "msg": "此物品并非怪物或魔石召唤卷轴！"}
	
	# 40250 原版规则：安全区内禁止召唤具有攻击性的首领与魔石
	if is_in_safe_zone and category != "ore_vein":
		summon_failed.emit("CANNOT_SPAWN_IN_SAFEZONE")
		return {"ok": false, "reason": "CANNOT_SPAWN_IN_SAFEZONE", "msg": "在安全区内无法召唤怪物！请移至野外危险区域。"}
	
	# 扣除卷轴消耗 (40250 item->SetCount(item->GetCount()-1))
	var current_count = int(item.get("count", 1))
	if current_count > 1:
		item["count"] = current_count - 1
	else:
		inventory[slot_index] = null
	
	# 生成随机偏移位置 (类似 40250 GetX() + number(-500, 500))
	var offset_x = randf_range(-120.0, 120.0)
	var offset_y = randf_range(-120.0, 120.0)
	# 确保不会生成在绝对重合点
	if abs(offset_x) < 30.0:
		offset_x = 50.0 if offset_x >= 0.0 else -50.0
	if abs(offset_y) < 30.0:
		offset_y = 50.0 if offset_y >= 0.0 else -50.0
	
	var spawn_pos = Vector2(player_pos.x + offset_x, player_pos.y + offset_y)
	var summoned_entity: Dictionary = {}
	
	match category:
		"boss":
			var boss_info = BOSS_SCROLLS[vnum]
			summoned_entity = {
				"vnum": int(boss_info["mob_vnum"]),
				"name": str(boss_info["mob_name"]),
				"level": int(boss_info["level"]),
				"rank": int(boss_info["rank"]),
				"pos": spawn_pos,
				"is_aggressive": true,
				"category": "boss",
				"summoner_pos": player_pos
			}
			_active_summoned_entities.append(summoned_entity)
			boss_summoned.emit(summoned_entity["vnum"], summoned_entity["name"], spawn_pos, true)
		
		"metin":
			var metin_scroll = METIN_SCROLLS[vnum]
			var pool: Array = metin_scroll["pool"]
			var picked_idx = 0
			if forced_choice_idx >= 0 and forced_choice_idx < pool.size():
				picked_idx = forced_choice_idx
			else:
				picked_idx = randi() % pool.size()
			
			var picked_metin = pool[picked_idx]
			summoned_entity = {
				"vnum": int(picked_metin["vnum"]),
				"name": str(picked_metin["name"]),
				"level": int(picked_metin["level"]),
				"rank": 5, # STONE
				"pos": spawn_pos,
				"is_aggressive": false,
				"category": "metin",
				"summoner_pos": player_pos
			}
			_active_summoned_entities.append(summoned_entity)
			metin_summoned.emit(summoned_entity["vnum"], summoned_entity["name"], spawn_pos, summoned_entity["level"])
		
		"ore_vein":
			var vein_info = ORE_VEIN_SCROLLS[vnum]
			summoned_entity = {
				"vnum": int(vein_info["mob_vnum"]),
				"name": str(vein_info["name"]),
				"pos": spawn_pos,
				"is_aggressive": false,
				"category": "ore_vein",
				"summoner_pos": player_pos
			}
			_active_summoned_entities.append(summoned_entity)
			ore_vein_summoned.emit(summoned_entity["vnum"], summoned_entity["name"], spawn_pos)
	
	return {
		"ok": true,
		"category": category,
		"entity": summoned_entity,
		"msg": "卷轴散发出一道耀眼的光芒，强大的封印能量破空而出！"
	}

# 获取当前已召唤的所有活跃实体
func get_active_summoned_entities() -> Array[Dictionary]:
	return _active_summoned_entities

# 清空/移除已击败或离开的实体
func remove_summoned_entity(index: int) -> bool:
	if index >= 0 and index < _active_summoned_entities.size():
		_active_summoned_entities.remove_at(index)
		return true
	return false

func clear_summoned_entities() -> void:
	_active_summoned_entities.clear()

# 存档与读档支持
func serialize() -> Dictionary:
	var list_copy: Array = []
	for e in _active_summoned_entities:
		var pos_dict = {"x": e["pos"].x, "y": e["pos"].y}
		var copy_e = e.duplicate()
		copy_e["pos"] = pos_dict
		if copy_e.has("summoner_pos"):
			copy_e["summoner_pos"] = {"x": e["summoner_pos"].x, "y": e["summoner_pos"].y}
		list_copy.append(copy_e)
	return {
		"active_entities": list_copy
	}

func deserialize(data: Dictionary) -> void:
	_active_summoned_entities.clear()
	var raw_list = data.get("active_entities", [])
	for item in raw_list:
		var pos_data = item.get("pos", {"x": 0.0, "y": 0.0})
		var ent = item.duplicate()
		ent["pos"] = Vector2(pos_data.get("x", 0.0), pos_data.get("y", 0.0))
		if ent.has("summoner_pos"):
			var sp_data = ent.get("summoner_pos", {"x": 0.0, "y": 0.0})
			ent["summoner_pos"] = Vector2(sp_data.get("x", 0.0), sp_data.get("y", 0.0))
		_active_summoned_entities.append(ent)