# title_trophy_buff_system.gd —— Metin2 40250 真实称号词条战力加成与奖杯成就图鉴 1:1
# 对照 40250 服务端 affect.h, cmd_general.cpp, title.cpp, char_affect.cpp
class_name TitleTrophyBuffSystem
extends RefCounted

signal trophy_milestone_reached(tier: int, trophy_name: String, bonus_desc: String)
signal title_stat_buffs_applied(title_name: String, buffs: Dictionary)
signal title_stat_buffs_removed(title_name: String)

# 经典称号与专属真实战力词条池
const TITLES_CATALOG: Dictionary = {
	"屠龙尊者": {
		"desc": "贝雷斯水龙终结者，威震天界之峰",
		"buffs": {
			"boss_dmg_pct": 15,
			"max_hp": 2000,
			"crit_pct": 5
		}
	},
	"恶魔克星": {
		"desc": "诛灭死神与阿兹瑞尔，冥府幽界之灾",
		"buffs": {
			"undead_dmg_pct": 15,
			"magic_resist": 10,
			"def": 60
		}
	},
	"魔石终结者": {
		"desc": "踏平八荒八档魔石，破除虚空陨铁",
		"buffs": {
			"metin_dmg_pct": 12,
			"atk": 50,
			"penetration_pct": 5
		}
	},
	"地牢速通王": {
		"desc": "创下各大地牢副本最速纪录的疾风勇者",
		"buffs": {
			"move_speed": 15,
			"cast_speed": 10,
			"max_sp": 1000
		}
	},
	"百战名将": {
		"desc": "力克四大野外世界首领，声震三界",
		"buffs": {
			"atk": 80,
			"def": 50,
			"max_hp": 1500
		}
	},
	"商海巨擘": {
		"desc": "富甲一方，日进斗金的广场交易领主",
		"buffs": {
			"gold_bonus_pct": 20,
			"max_hp": 500
		}
	},
	"武学至尊": {
		"desc": "多门绝技臻至 P 级圆满的盖世宗师",
		"buffs": {
			"skill_dmg_pct": 10,
			"cast_speed": 15,
			"atk": 60
		}
	}
}

# 奖杯累积成就里程碑 (永久被动战力加成)
const TROPHY_MILESTONES: Dictionary = {
	1: {"pts": 50, "name": "青铜试炼奖杯", "bonus": {"all_stats": 3}, "desc": "全属性 +3"},
	2: {"pts": 150, "name": "白银征服奖杯", "bonus": {"max_hp": 1000, "drop_rate_pct": 5}, "desc": "生命上限 +1000，掉宝率 +5%"},
	3: {"pts": 300, "name": "黄金霸主奖杯", "bonus": {"atk": 50, "crit_pct": 5}, "desc": "攻击力 +50，暴击率 +5%"},
	4: {"pts": 500, "name": "铂金封神奖杯", "bonus": {"boss_dmg_pct": 10, "exp_bonus_pct": 10}, "desc": "首领伤害 +10%，经验获取 +10%"}
}

var active_title: String = ""
var active_title_buffs: Dictionary = {}
var unlocked_titles: Array = []
var trophy_points: int = 0
var reached_milestones: Array = []

# 解锁新称号
func unlock_title(title_name: String, awarded_points: int = 50) -> Dictionary:
	if not TITLES_CATALOG.has(title_name):
		return {"ok": false, "reason": "UNKNOWN_TITLE", "msg": "未知的称号！"}

	if not (title_name in unlocked_titles):
		unlocked_titles.append(title_name)
		trophy_points += awarded_points
		_check_trophy_milestones()
		return {"ok": true, "title": title_name, "points": trophy_points, "msg": "解锁了殿堂称号【%s】！" % title_name}

	return {"ok": true, "already_unlocked": true, "title": title_name}

# 佩戴指定称号并动态注入角色属性面板
func equip_title(title_name: String, player_data: Dictionary) -> Dictionary:
	if not (title_name in unlocked_titles):
		return {"ok": false, "reason": "TITLE_NOT_UNLOCKED", "msg": "尚未解锁该称号！"}

	# 先卸下旧称号属性
	if not active_title.is_empty():
		_remove_title_buffs(player_data)

	active_title = title_name
	var cfg = TITLES_CATALOG[title_name]
	active_title_buffs = cfg["buffs"].duplicate(true)

	_apply_buffs_to_player(player_data, active_title_buffs)
	title_stat_buffs_applied.emit(active_title, active_title_buffs)

	return {
		"ok": true,
		"title": active_title,
		"buffs": active_title_buffs,
		"msg": "已佩戴称号【%s】！获得了专属战力加成。" % active_title
	}

# 卸下当前称号
func unequip_title(player_data: Dictionary) -> Dictionary:
	if active_title.is_empty():
		return {"ok": false, "reason": "NO_TITLE_EQUIPPED"}

	var old = active_title
	_remove_title_buffs(player_data)
	active_title = ""
	active_title_buffs.clear()

	title_stat_buffs_removed.emit(old)

	return {"ok": true, "msg": "已卸下称号【%s】。" % old}

# 将 Buff 加成数值安全叠加入 player_data
func _apply_buffs_to_player(player_data: Dictionary, buffs: Dictionary) -> void:
	for stat_key in buffs.keys():
		var val = buffs[stat_key]
		player_data[stat_key] = player_data.get(stat_key, 0) + val

# 从 player_data 中精准反扣旧 Buff 加成数值
func _remove_title_buffs(player_data: Dictionary) -> void:
	for stat_key in active_title_buffs.keys():
		var val = active_title_buffs[stat_key]
		player_data[stat_key] = player_data.get(stat_key, 0) - val

# 检测奖杯里程碑晋阶
func _check_trophy_milestones() -> void:
	for tier in [1, 2, 3, 4]:
		if not (tier in reached_milestones):
			var req = TROPHY_MILESTONES[tier]["pts"]
			if trophy_points >= req:
				reached_milestones.append(tier)
				var m = TROPHY_MILESTONES[tier]
				trophy_milestone_reached.emit(tier, m["name"], m["desc"])

# 获取所有奖杯被动被动加成总计
func get_total_trophy_passive_bonuses() -> Dictionary:
	var total: Dictionary = {}
	for tier in reached_milestones:
		var b = TROPHY_MILESTONES[tier]["bonus"]
		for k in b.keys():
			total[k] = total.get(k, 0) + b[k]
	return total

# 获取当前全部战力属性摘要
func get_title_status() -> Dictionary:
	return {
		"active_title": active_title,
		"active_buffs": active_title_buffs,
		"unlocked_count": unlocked_titles.size(),
		"trophy_points": trophy_points,
		"reached_milestones": reached_milestones,
		"passive_bonuses": get_total_trophy_passive_bonuses()
	}