# biologist_chaegirab_research_system.gd —— Metin2 40250 官方生物学者车齿木全套调查研究链与永久属性嘉奖系统 1:1
# 对照 40250 服务端 collect_quest_lv30.quest ~ collect_quest_lv94.quest, char.cpp
class_name BiologistChaegirabResearchSystem
extends RefCounted

signal sample_submitted(item_name: String, success: bool, current: int, target: int)
signal capstone_submitted(stone_name: String, stage_name: String)
signal stage_completed(stage_name: String, rewards: Dictionary)

const NPC_BIOLOGIST := 20084 # 生物学者车齿木 (Biologist Chaegirab)
const VNUM_RESEARCH_ELIXIR := 71035 # 贤者之药 (提高提交成功率至 90%)

# 40250 官方 8 大里程碑阶段全量研究任务链
const RESEARCH_STAGES: Array = [
	{
		"stage_id": 1,
		"title": "【Lv 30 研究】兽人牙齿调查",
		"min_level": 30,
		"sample_vnum": 30006, # 兽人牙齿
		"sample_name": "兽人牙齿",
		"target_count": 10,
		"soul_stone_vnum": 30220, # 兽人灵魂石
		"soul_stone_name": "兽人灵魂石",
		"reward_stats": {"move_speed": 10},
		"desc": "永久移动速度 +10"
	},
	{
		"stage_id": 2,
		"title": "【Lv 40 研究】诅咒之书调查",
		"min_level": 40,
		"sample_vnum": 30047, # 诅咒之书
		"sample_name": "诅咒之书",
		"target_count": 15,
		"soul_stone_vnum": 30221, # 诅咒灵魂石
		"soul_stone_name": "诅咒灵魂石",
		"reward_stats": {"cast_speed_pct": 5},
		"desc": "永久施法速度 +5%"
	},
	{
		"stage_id": 3,
		"title": "【Lv 50 研究】恶魔纪念物调查",
		"min_level": 50,
		"sample_vnum": 30015, # 恶魔纪念物
		"sample_name": "恶魔纪念物",
		"target_count": 15,
		"soul_stone_vnum": 30222, # 恶魔灵魂石
		"soul_stone_name": "恶魔灵魂石",
		"reward_stats": {"defense": 60},
		"desc": "永久防御力 +60"
	},
	{
		"stage_id": 4,
		"title": "【Lv 60 研究】冰之碎片调查",
		"min_level": 60,
		"sample_vnum": 30050, # 冰之碎片
		"sample_name": "冰之碎片",
		"target_count": 20,
		"soul_stone_vnum": 30223, # 冰霜灵魂石
		"soul_stone_name": "冰霜灵魂石",
		"reward_stats": {"attack_power": 50},
		"desc": "永久物理攻击力 +50"
	},
	{
		"stage_id": 5,
		"title": "【Lv 70 研究】幽灵树枝调查",
		"min_level": 70,
		"sample_vnum": 30165, # 幽灵树枝
		"sample_name": "幽灵树枝",
		"target_count": 25,
		"soul_stone_vnum": 30224, # 森林灵魂石
		"soul_stone_name": "森林灵魂石",
		"reward_stats": {"move_speed": 11, "damage_reduction_pct": 10},
		"desc": "永久移动速度 +11, 伤害抗性 +10%"
	},
	{
		"stage_id": 6,
		"title": "【Lv 80 研究】巨灵石碑调查",
		"min_level": 80,
		"sample_vnum": 30166, # 巨灵石碑
		"sample_name": "巨灵石碑",
		"target_count": 30,
		"soul_stone_vnum": 30225, # 巨灵灵魂石
		"soul_stone_name": "巨灵灵魂石",
		"reward_stats": {"attack_speed": 6, "attack_pct": 10},
		"desc": "永久攻击速度 +6, 物理伤害 +10%"
	},
	{
		"stage_id": 7,
		"title": "【Lv 85 研究】红木灵枝调查",
		"min_level": 85,
		"sample_vnum": 30167, # 红木灵枝
		"sample_name": "红木灵枝",
		"target_count": 40,
		"soul_stone_vnum": 30226, # 灵魂之石
		"soul_stone_name": "灵魂之石",
		"reward_stats": {"all_resistance_pct": 10},
		"desc": "永久全属性抗性 +10%"
	},
	{
		"stage_id": 8,
		"title": "【Lv 90 研究】首领领主证书调查",
		"min_level": 90,
		"sample_vnum": 30168, # 领主证书
		"sample_name": "首领领主证书",
		"target_count": 50,
		"soul_stone_vnum": 30227, # 首领灵魂石
		"soul_stone_name": "首领灵魂石",
		"reward_stats": {"boss_damage_pct": 10},
		"desc": "永久对野外首领伤害 +10%"
	}
]

var current_stage_index: int = 0
var current_samples: int = 0
var waiting_for_soul_stone: bool = false
var completed_stages: Array = []
var permanent_bonuses: Dictionary = {}

# 获取当前正在进行的研究任务配置
func get_current_stage() -> Dictionary:
	if current_stage_index >= RESEARCH_STAGES.size():
		return {} # 已全部完成
	return RESEARCH_STAGES[current_stage_index].duplicate(true)

# 交付样本材料
func submit_sample(inventory: Array, slot_index: int, player_level: int, force_success: bool = false, use_elixir: bool = false) -> Dictionary:
	var stage = get_current_stage()
	if stage.is_empty():
		return {"ok": false, "reason": "ALL_RESEARCH_COMPLETED", "msg": "所有生物学者调查研究均已登峰造极！"}
	
	if player_level < int(stage["min_level"]):
		return {
			"ok": false,
			"reason": "PLAYER_LEVEL_TOO_LOW",
			"msg": "等级不足！开启该阶段研究需达到 %d 级。" % int(stage["min_level"])
		}
	
	if waiting_for_soul_stone:
		return {
			"ok": false,
			"reason": "WAITING_FOR_SOUL_STONE",
			"msg": "样本已全部收集齐！请交付【%s】以完成终极认证。" % stage["soul_stone_name"]
		}
	
	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 != int(stage["sample_vnum"]):
		return {
			"ok": false,
			"reason": "WRONG_SAMPLE_ITEM",
			"msg": "车齿木摇了摇头：当前阶段需要研究的是【%s】！" % stage["sample_name"]
		}
	
	# 消耗 1 件样本
	var cnt := int(item.get("count", 1))
	if cnt > 1:
		item["count"] = cnt - 1
	else:
		inventory[slot_index] = null
	
	# 判定成功率 (基础 60%，使用贤者之药 90%)
	var success_chance := 0.90 if use_elixir else 0.60
	var is_success := force_success or (randf() <= success_chance)
	
	if is_success:
		current_samples += 1
		sample_submitted.emit(stage["sample_name"], true, current_samples, stage["target_count"])
		
		# 检查样本是否集齐
		if current_samples >= int(stage["target_count"]):
			waiting_for_soul_stone = true
			return {
				"ok": true,
				"success": true,
				"current": current_samples,
				"target": stage["target_count"],
				"need_soul_stone": true,
				"soul_stone_name": stage["soul_stone_name"],
				"msg": "样本品质极高！%d 件样本已全部收集完毕，请寻找【%s】交付！" % [current_samples, stage["soul_stone_name"]]
			}
		
		return {
			"ok": true,
			"success": true,
			"current": current_samples,
			"target": stage["target_count"],
			"need_soul_stone": false,
			"msg": "样本验证成功！研究进度：(%d / %d)。" % [current_samples, stage["target_count"]]
		}
	else:
		sample_submitted.emit(stage["sample_name"], false, current_samples, stage["target_count"])
		return {
			"ok": true,
			"success": false,
			"current": current_samples,
			"target": stage["target_count"],
			"need_soul_stone": false,
			"msg": "学者车齿木叹息：这件样本受损严重，无法用于精炼分析。"
		}

# 交付关底灵魂石完成该阶段
func submit_soul_stone(inventory: Array, slot_index: int, player_stats: Dictionary) -> Dictionary:
	var stage = get_current_stage()
	if stage.is_empty():
		return {"ok": false, "reason": "ALL_RESEARCH_COMPLETED"}
	
	if not waiting_for_soul_stone:
		return {"ok": false, "reason": "SAMPLES_NOT_COMPLETED", "msg": "样本尚未收集齐，无法交付灵魂石！"}
	
	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]
	if int(item.get("vnum", 0)) != int(stage["soul_stone_vnum"]):
		return {
			"ok": false,
			"reason": "WRONG_SOUL_STONE",
			"msg": "需要交付的是专属的【%s】！" % stage["soul_stone_name"]
		}
	
	# 消耗灵魂石
	var cnt := int(item.get("count", 1))
	if cnt > 1:
		item["count"] = cnt - 1
	else:
		inventory[slot_index] = null
	
	# 注入永久属性加成
	var rewards: Dictionary = stage.get("reward_stats", {})
	for k in rewards.keys():
		var val = int(rewards[k])
		player_stats[k] = int(player_stats.get(k, 0)) + val
		permanent_bonuses[k] = int(permanent_bonuses.get(k, 0)) + val
	
	completed_stages.append(stage["stage_id"])
	current_stage_index += 1
	current_samples = 0
	waiting_for_soul_stone = false
	
	capstone_submitted.emit(stage["soul_stone_name"], stage["title"])
	stage_completed.emit(stage["title"], rewards)
	
	return {
		"ok": true,
		"completed_stage": stage["title"],
		"rewards": rewards,
		"permanent_bonuses": permanent_bonuses,
		"msg": "【%s】圆满达成！永久获得属性加成：%s！" % [stage["title"], stage["desc"]]
	}

# 序列化
func serialize() -> Dictionary:
	return {
		"current_stage_index": current_stage_index,
		"current_samples": current_samples,
		"waiting_for_soul_stone": waiting_for_soul_stone,
		"completed_stages": completed_stages.duplicate(true),
		"permanent_bonuses": permanent_bonuses.duplicate(true)
	}

# 反序列化
func deserialize(data: Dictionary) -> void:
	current_stage_index = int(data.get("current_stage_index", 0))
	current_samples = int(data.get("current_samples", 0))
	waiting_for_soul_stone = bool(data.get("waiting_for_soul_stone", false))
	completed_stages = data.get("completed_stages", []).duplicate(true)
	permanent_bonuses = data.get("permanent_bonuses", {}).duplicate(true)