# flame_dungeon_razador_system.gd —— Metin2 40250 经典红龙烈焰神殿与拉扎多尔炼狱试炼 1:1
# 对照 40250 服务端 flame_dungeon.start.1.script, quest/flame_dungeon*, char_item.cpp
class_name FlameDungeonRazadorSystem
extends RefCounted

signal dungeon_entered(time_limit: float)
signal stage_advanced(new_stage: int, stage_desc: String)
signal altar_lit(altars_lit: int, total_altars: int)
signal razador_spawned(mob_vnum: int)
signal razador_slain(drop_rewards: Array)
signal dungeon_completed()
signal dungeon_failed(reason: String)

const NPC_AM_HEH_WATCHER := 20385 # 烈焰守望者 (Am-heh Watcher)
const MIN_ENTRY_LEVEL    := 100   # 进入等级门槛 100 级
const VNUM_TICKET_71095  := 71095 # 通行证
const VNUM_TICKET_71130  := 71130 # 烈焰通行证

const MOB_RAZADOR        := 6091  # 烈焰魔王拉扎多尔 (Razador)
const VNUM_RAZADOR_CHEST := 50186 # 拉扎多尔宝箱

const DUNGEON_TIME_LIMIT := 2700.0 # 45 分钟 (2700 秒)

# 7 大炼狱阶段定义
const STAGES_DESC: Array = [
	"阶段 1: 清剿外围烈焰魔群",
	"阶段 2: 寻觅正确齿轮诛灭引火者",
	"阶段 3: 破灭炼狱灭世魔石",
	"阶段 4: 诛灭四极炼狱护法",
	"阶段 5: 使用真·玛阿特之石点燃五方火盆",
	"阶段 6: 击碎烈焰火轮魔石",
	"阶段 7: 进军神殿核心，决战烈焰魔王拉扎多尔！"
]

var is_active: bool = false
var current_stage: int = 1
var time_remaining: float = 0.0
var altars_lit_count: int = 0
var razador_alive: bool = false

# 检票进入烈焰神殿 (40250 flame_dungeon.start.1.script)
func enter_dungeon(player_level: int, inventory: Array) -> Dictionary:
	if is_active:
		return {"ok": false, "reason": "DUNGEON_ALREADY_ACTIVE", "msg": "神殿试炼已在进行中！"}
	
	if player_level < MIN_ENTRY_LEVEL:
		return {
			"ok": false,
			"reason": "LEVEL_TOO_LOW",
			"msg": "实力不足！开启拉扎多尔烈焰试炼需角色达到 %d 级。" % MIN_ENTRY_LEVEL
		}
	
	# 检查并消耗 1 张通行证 (71095 或 71130)
	var ticket_slot := -1
	for i in range(inventory.size()):
		if inventory[i] != null:
			var v := int(inventory[i].get("vnum", 0))
			if v == VNUM_TICKET_71095 or v == VNUM_TICKET_71130:
				ticket_slot = i
				break
	
	if ticket_slot == -1:
		return {"ok": false, "reason": "NO_ENTRY_TICKET", "msg": "守望者拦住了去路！需要持有【烈焰通行证】(71095/71130)。"}
	
	var t_item: Dictionary = inventory[ticket_slot]
	var cnt := int(t_item.get("count", 1))
	if cnt > 1:
		t_item["count"] = cnt - 1
	else:
		inventory[ticket_slot] = null
	
	is_active = true
	current_stage = 1
	time_remaining = DUNGEON_TIME_LIMIT
	altars_lit_count = 0
	razador_alive = false
	
	dungeon_entered.emit(DUNGEON_TIME_LIMIT)
	stage_advanced.emit(1, STAGES_DESC[0])
	
	return {
		"ok": true,
		"time_limit": DUNGEON_TIME_LIMIT,
		"stage": 1,
		"stage_desc": STAGES_DESC[0],
		"msg": "通行证校验通过！烈焰之门轰然开启，限时 45 分钟挑战拉扎多尔！"
	}

# 推进阶段目标
func advance_stage() -> Dictionary:
	if not is_active:
		return {"ok": false, "reason": "DUNGEON_NOT_ACTIVE"}
	
	if current_stage < 7:
		current_stage += 1
		var desc: String = STAGES_DESC[current_stage - 1]
		
		if current_stage == 7:
			# 召唤最终首领拉扎多尔
			razador_alive = true
			razador_spawned.emit(MOB_RAZADOR)
		
		stage_advanced.emit(current_stage, desc)
		return {
			"ok": true,
			"current_stage": current_stage,
			"stage_desc": desc,
			"msg": "试炼突破！开启【%s】。" % desc
		}
	
	return {"ok": false, "reason": "ALREADY_AT_FINAL_STAGE"}

# 阶段 5 点燃玛阿特火盆
func light_fire_altar() -> Dictionary:
	if not is_active or current_stage != 5:
		return {"ok": false, "reason": "NOT_IN_ALTAR_STAGE"}
	
	altars_lit_count = mini(5, altars_lit_count + 1)
	altar_lit.emit(altars_lit_count, 5)
	
	if altars_lit_count >= 5:
		# 5 座火盆全部点燃，自动迈入第 6 阶段
		advance_stage()
		return {
			"ok": true,
			"altars_lit": 5,
			"stage_cleared": true,
			"msg": "五方火盆全部燃起纯阳烈焰！封印解除，进入下一阶段！"
		}
	
	return {
		"ok": true,
		"altars_lit": altars_lit_count,
		"stage_cleared": false,
		"msg": "成功点燃 1 座火盆！当前进度：(%d / 5)。" % [altars_lit_count]
	}

# 斩杀烈焰魔王拉扎多尔
func slay_razador(inventory: Array) -> Dictionary:
	if not is_active or not razador_alive:
		return {"ok": false, "reason": "RAZADOR_NOT_ALIVE"}
	
	razador_alive = false
	
	var rewards: Array = [
		{"vnum": VNUM_RAZADOR_CHEST, "name": "拉扎多尔宝箱", "count": 1},
		{"vnum": 25040, "name": "祝福卷轴", "count": 3},
		{"vnum": 51501, "name": "龙石炼金原石", "count": 2}
	]
	
	for drop in rewards:
		for i in range(inventory.size()):
			if inventory[i] == null:
				inventory[i] = drop.duplicate(true)
				break
	
	razador_slain.emit(rewards)
	
	# 通关副本
	is_active = false
	time_remaining = 0.0
	dungeon_completed.emit()
	
	return {
		"ok": true,
		"rewards": rewards,
		"msg": "伟大的征服！烈焰魔王拉扎多尔陨落！斩获【拉扎多尔宝箱】！"
	}

# 逻辑心跳更新
func update(delta: float) -> void:
	if not is_active:
		return
	time_remaining -= delta
	if time_remaining <= 0.0:
		is_active = false
		razador_alive = false
		dungeon_failed.emit("TIMEOUT")

# 序列化
func serialize() -> Dictionary:
	return {
		"is_active": is_active,
		"current_stage": current_stage,
		"time_remaining": time_remaining,
		"altars_lit_count": altars_lit_count,
		"razador_alive": razador_alive
	}

# 反序列化
func deserialize(data: Dictionary) -> void:
	is_active = bool(data.get("is_active", false))
	current_stage = int(data.get("current_stage", 1))
	time_remaining = float(data.get("time_remaining", 0.0))
	altars_lit_count = int(data.get("altars_lit_count", 0))
	razador_alive = bool(data.get("razador_alive", false))