class_name I18n
extends RefCounted

const LOCALE_EN := "en"
const SETTINGS_PATH := "user://farm_settings.cfg"
const SETTINGS_SECTION := "i18n"
const SETTINGS_LOCALE_KEY := "locale"

const LANGUAGE_OPTIONS := [
	{"code": LOCALE_EN, "label": "English"},
]

const EN := {
	"离开": "Leave",
	"关闭": "Close",
	"确定": "Confirm",
	"开启": "On",
	"系统设置": "Settings",
	"音乐:": "Music:",
	"音效:": "SFX:",
	"帐号:": "Account:",
	"装扮:": "Skin:",
	"语言:": "Language:",
	"切换帐号": "Switch Account",
	"装扮设置": "Skin Settings",
	"装扮切换失败": "Skin switch failed",
	"语言已切换": "Language updated",
	"操作失败": "Operation failed",
	"操作成功": "Done",
	"登录信息失效": "Login expired",
	"播种失败": "Planting failed",
	"播种成功": "Planted",
	"收获失败": "Harvest failed",
	"铲除失败": "Clear failed",
	"施肥失败": "Fertilize failed",
	"浇水失败": "Watering failed",
	"除虫失败": "Bug removal failed",
	"除草失败": "Weed removal failed",
	"农田上已经有农作物": "This land already has a crop",
	"当前等级不足": "Current level too low",
	"你没有这个物品": "You do not have this item",
	"物品数量不够": "Not enough items",
	"物品类型错误": "Wrong item type",
	"农田上没有种植种子": "This land has no crop",
	"尚未成熟": "Not mature yet",
	"你已经收割过该农作物": "This crop has already been harvested",
	"农田不需要清理": "This land does not need clearing",
	"农作物已经成熟": "Crop is already mature",
	"操作错误": "Invalid operation",
	"施肥已经到达上限": "Fertilizing is already maxed",
	"施肥时间错误": "Cannot fertilize now",
	"土地等级不够，无法种植该植物": "Land level too low for this crop",
	"物品": "Item",
	"作物": "Crop",
	"神秘种子": "Mystery Seed",
	"剩余果实:%s": "Fruit left: %s",
	"已经收获": "Harvested",
	"%s秒": "%ss",
	"0秒": "0s",
	"%s后%s": "%s until %s",
	"种子期": "Seed",
	"发芽期": "Sprout",
	"生长期": "Growing",
	"成熟期": "Mature",
	"枯萎": "Withered",
	"浇水成功": "Watered",
	"成就": "Achievements",
	"竞技": "Arena",
	"游乐园": "Playground",
	"升级": "Upgrade",
	"制作": "Craft",
	"获得 %s": "Received %s",
	"房屋升级": "House Upgrade",
	"房屋升级失败：%s": "House upgrade failed: %s",
	"房屋已满级": "House is max level",
	"房屋配置缺失": "House config missing",
	"升级房屋需要农场主等级达到：": "Required farmer level:",
	"收获土地的果实将增加产量百分比：": "Fruit yield bonus:",
	"升级房屋等级将增加农场主经验百分比：": "Farmer EXP bonus:",
	"满级": "Max",
	"房屋升级失败": "House upgrade failed",
	"房屋升级成功": "House upgraded",
	"农场主等级不足": "Farmer level too low",
	"角色等级不足": "Character level too low",
	"等级不足": "Level too low",
	"金币不足,无法扩建": "Not enough gold to expand",
	"金豆不足,无法扩建": "Not enough gold beans to expand",
	"升级材料不足": "Not enough upgrade materials",
	"材料不足": "Not enough materials",
	"配置缺失": "Config missing",
	"土地升级失败": "Land upgrade failed",
	"土地升级配置缺失": "Land upgrade config missing",
	"扩建配置缺失": "Expansion config missing",
	"扩建土地失败：%s": "Land expansion failed: %s",
	"扩建土地成功": "Land expanded",
	"扩建这块土地需要：": "This expansion requires:",
	"角色等级：": "Character Level:",
	"扩建": "Expand",
	"升级成功": "Upgrade complete",
	"普通土地": "Basic Land",
	"棕土地": "Brown Land",
	"银土地": "Silver Land",
	"紫土地": "Purple Land",
	"没有足够的%s": "Not enough %s",
	"升级%s需要农场主等级达到：": "Upgrade %s requires farmer level:",
	"收获%s的果实将增加农场主经验点：": "Harvesting %s adds farmer EXP:",
	"收获%s的果实将增加产量个数：": "Harvesting %s adds yield:",
	"%s点": "%s pts",
	"%s个": "%s pcs",
	"战宠": "Battle Pet",
	"战宠列表": "Pet List",
	"战宠商店": "Pet Shop",
	"请在神秘商城中购买战宠蛋并在仓库道具栏中使用，在战宠界面孵化并参战。": "Buy a pet egg in the mystery shop, use it from warehouse items, hatch it here, then send it to battle.",
	"喂养": "Feed",
	"宠物名:": "Pet Name:",
	"战斗力:": "Power:",
	"饱食度:": "Fullness:",
	"注1：饱食度为0，战宠将无法出战.": "Note 1: A pet with 0 fullness cannot battle.",
	"注2：宠物战力越高，战斗胜利的越高.": "Note 2: Higher pet power improves battle odds.",
	"注3：宠物战斗后需要消耗一部分口粮恢复饱食度.": "Note 3: Pets consume food to recover fullness after battle.",
	"暂无战宠，请到战宠商店购买。": "No battle pets. Buy one from the pet shop.",
	"暂无战宠商品": "No pet items",
	"剩余的狗粮时间：": "Food time left:",
	"单价": "Price",
	"放出": "Deploy",
	"已拥有": "Owned",
	"没有可用狗粮": "No usable pet food",
	"喂养失败：%s": "Feed failed: %s",
	"喂养失败": "Feed failed",
	"喂养成功": "Fed",
	"放出失败：%s": "Deploy failed: %s",
	"已放出战宠": "Battle pet deployed",
	"购买失败：等级不足": "Purchase failed: level too low",
	"购买失败：金币不足": "Purchase failed: not enough gold",
	"购买失败：金豆不足": "Purchase failed: not enough gold beans",
	"购买失败：钻石不足，请充值！": "Purchase failed: not enough gems. Top up first.",
	"购买失败：资源不足，请充值！": "Purchase failed: not enough resources. Top up first.",
	"购买失败：商店接口未初始化": "Purchase failed: shop API not ready",
	"购买失败：%s": "Purchase failed: %s",
	"购买成功": "Purchased",
	"狗狗没有上场": "No pet deployed",
	"没有狗粮了": "No pet food left",
	"初级狗粮": "Basic Pet Food",
	"中级狗粮": "Medium Pet Food",
	"高级狗粮": "Advanced Pet Food",
	"宠物蛋": "Pet Egg",
	"基本属性": "Stats",
	"战力升级": "Power Up",
	"宠物进化": "Evolution",
	"您没有宠物": "You have no pets",
	"功能开发中": "Coming soon",
	"饿了...": "Hungry...",
	"汪~": "Woof~",
	"宠物战力:": "Pet Power:",
	"攻击方式:": "Attack Type:",
	"宠物等级:": "Pet Level:",
	"战斗消耗:": "Battle Cost:",
	"经验值:": "EXP:",
	"血量:": "HP:",
	"攻击:": "ATK:",
	"暴击:": "Crit:",
	"闪避:": "Dodge:",
	"防御:": "DEF:",
	"无类型": "None",
	"近身攻击": "Melee",
	"远程攻击": "Ranged",
	"参战失败": "Deploy failed",
	"参战成功": "Deployed",
	"没有狗粮": "No pet food",
	"全国排名": "Global Rank",
	"好友排名": "Friend Rank",
	"排名": "Rank",
	"游戏昵称": "Name",
	"等级": "Level",
	"家园": "Home",
	"财富": "Wealth",
	"排行榜加载失败：%s": "Rank load failed: %s",
	"战力排行暂未开放": "Power ranking is not open yet",
	"好友搜索面板后续补齐": "Friend search is coming later",
	"好友申请面板后续补齐": "Friend requests are coming later",
	"查看家园：%s": "View home: %s",
	"互动：%s": "Interact: %s",
	"兑换金币": "Gold Exchange",
	"兑换金豆": "Gold Bean Exchange",
	"金币：%s": "Gold: %s",
	"金豆：%s": "Gold Beans: %s",
	"钻石：%s": "Gems: %s",
	"钻石兑金币": "Gems to Gold",
	"钻石兑金豆": "Gems to Gold Beans",
	"金币兑钻石": "Gold to Gems",
	"金豆兑钻石": "Gold Beans to Gems",
	"兑换": "Exchange",
	"兑换记录": "Exchange History",
	"正在读取兑换记录...": "Loading exchange history...",
	"兑换记录读取失败": "Failed to load exchange history",
	"兑换记录已加载": "Exchange history loaded",
	"暂无兑换记录": "No exchange history",
	"钻石兑换金币": "Gems to Gold",
	"钻石兑换金豆": "Gems to Gold Beans",
	"金币兑换钻石": "Gold to Gems",
	"金豆兑换钻石": "Gold Beans to Gems",
	"兑换比例 1 钻石 = %s 金币": "Rate: 1 gem = %s gold",
	"兑换比例 1 钻石 = %s 金豆": "Rate: 1 gem = %s gold beans",
	"兑换比例 %s 金币 = 1 钻石": "Rate: %s gold = 1 gem",
	"兑换比例 %s 金豆 = 1 钻石": "Rate: %s gold beans = 1 gem",
	"预计获得 %s 金币": "You will get %s gold",
	"预计获得 %s 金豆": "You will get %s gold beans",
	"预计获得 %s 钻石": "You will get %s gems",
	"钻石不足": "Not enough gems",
	"金币不足": "Not enough gold",
	"金豆不足": "Not enough gold beans",
	"兑换失败": "Exchange failed",
	"兑换成功": "Exchanged",
	"兑换获得金币": "Exchanged for gold",
	"兑换获得金豆": "Exchanged for gold beans",
	"兑换获得钻石": "Exchanged for gems",
	"本周已累计签到": "Signed in this week",
	"天": "days",
	"%s天": "%s days",
	"签到": "Sign In",
	"补签": "Make Up",
	"剩余补签卡%s张": "Make-up cards left: %s",
	"今日已签到": "Already signed in today",
	"签到读取失败": "Failed to load sign-in data",
	"签到失败": "Sign-in failed",
	"签到成功": "Signed in",
	"当前不能补签": "Cannot make up now",
	"补签卡不足": "Not enough make-up cards",
	"补签失败": "Make-up failed",
	"补签成功": "Make-up complete",
	"没有可领取的连续签到奖励": "No streak reward available",
	"领取连续签到奖励失败": "Failed to claim streak reward",
	"领取成功": "Claimed",
	"玩家信息缺失": "Player info missing",
	"读取等级礼包...": "Loading level gifts...",
	"LV.%s 等级礼包": "LV.%s Level Gift",
	"领取": "Claim",
	"已领取": "Claimed",
	"未达成": "Locked",
	"等级礼包读取失败": "Failed to load level gifts",
	"领取等级礼包失败": "Failed to claim level gift",
	"在线礼包 %s": "Online Gift %s",
	"礼包倒计时未结束": "Gift countdown is not over",
	"领取在线礼包失败": "Failed to claim online gift",
	"普通道具": "Items",
	"神秘商店": "Mystery Shop",
	"背景": "Background",
	"购买": "Buy",
	"果实": "Fruit",
	"种子": "Seeds",
	"道具": "Items",
	"该物品不能出售": "This item cannot be sold",
	"总计收入": "Total",
	"卖出": "Sell",
	"出售失败：%s": "Sell failed: %s",
	"出售成功，获得%s金币": "Sold for %s gold",
	"出售成功，获得%s金豆": "Sold for %s gold beans",
	"钻石充值": "Gem Top-up",
	"金币充值": "Gold Top-up",
	"金豆充值": "Gold Bean Top-up",
	"暂无充值配置": "No top-up config",
	"充值下单失败": "Top-up order failed",
	"充值下单成功": "Top-up order created",
	"正在打开支付": "Opening payment",
	"日志读取失败": "Failed to load logs",
	"读取日志中...": "Loading logs...",
	"玩家日志": "Player Log",
	"系统日志": "System Log",
	"暂无日志": "No logs",
	"清空": "Clear",
	"清空失败": "Clear failed",
	"我": "Me",
	"玩家": "Player",
	"种植": "Plant",
	"收获": "Harvest",
	"偷取了": "stole",
	"对植物进行了施肥": "fertilized a plant",
	"进行了锄地": "cleared land",
	"进行了土地升级": "upgraded land",
	"切换了农场风格": "changed farm skin",
	"喂了狗狗": "fed the pet",
	"使坏放虫": "released bugs",
	"使坏种草": "planted weeds",
	"对土地浇水": "watered land",
	"对植物除虫": "removed bugs",
	"对植物除草": "removed weeds",
	"扩建了1块土地": "expanded one land plot",
	"进行了房屋升级": "upgraded house",
	"被偷了": "was stolen from",
	"狗狗抓住": "pet caught",
	"被狗狗抓住": "was caught by a pet",
	"给你放虫": "released bugs on your land",
	"给你种草": "planted weeds on your land",
	"帮你浇水": "watered for you",
	"帮你放虫": "released bugs for you",
	"操作": "Action",
	"(本次免费)": "(Free this time)",
	"抽奖失败": "Draw failed",
	"抽中 %s": "Won %s",
	"公告读取失败": "Failed to load notices",
	"读取公告中...": "Loading notices...",
	"暂无公告": "No notices",
	"读取中...": "Loading...",
	"系统成就 %s 项": "%s achievements",
	"进度 %s/%s": "Progress %s/%s",
	"可领取": "Claimable",
	"进行中": "In Progress",
	"我的竞技": "My Arena",
	"排名 %s    战力 %s    积分 %s": "Rank %s    Power %s    Score %s",
	"胜 %s / 负 %s": "Win %s / Loss %s",
	"可挑战": "Challenge",
	"次数不足": "No attempts",
	"请先设置出战宠物": "Set a battle pet first",
	"战宠出战后才能进行竞技场挑战。": "You need a battle pet to challenge the arena.",
	"未开启": "Closed",
	"竞技场数据已加载": "Arena data loaded",
	"竞技场未开启": "Arena is closed",
	"排行榜": "Leaderboard",
	"暂无排名数据": "No rank data",
	"今日次数": "Today's Attempts",
	"今日已进入 %s 次    VIP免费次数 %s": "Entered %s times today    VIP free times %s",
	"超过免费次数后，后端会按旧规则扣除金币。": "After free attempts, gold is charged by the old server rule.",
	"超过免费次数后，后端会按旧规则扣除金豆。": "After free attempts, gold beans are charged by the old server rule.",
	"游乐园已就绪": "Playground ready",
	"可进入": "Enter",
	"需金币": "Needs Gold",
	"需金豆": "Needs Gold Beans",
	"奖励档位 %s": "Reward Tier %s",
	"需要积分 %s": "Needs Score %s",
	"奖励池：%s": "Reward Pool: %s",
	"种植达人": "Planting Expert",
	"福利达人": "Benefits Expert",
	"游戏达人": "Game Expert",
	"挑战达人": "Challenge Expert",
	"掠夺达人": "Raid Expert",
	"资源达人": "Resource Expert",
	"驯兽师": "Pet Trainer",
	"驯兽王": "Pet Master",
	"驯兽皇": "Pet Emperor",
	"消费达人": "Spending Expert",
	"竞技冠军": "Arena Champion",
	"水果商": "Fruit Merchant",
	"水果大亨": "Fruit Tycoon",
	"建筑大师": "Building Master",
	"成就大师": "Achievement Master",
	"签到达人": "Sign-in Expert",
	"碎片收集者": "Shard Collector",
	"小偷克星": "Thief Catcher",
	"世界神偷": "World Thief",
	"天下第一": "World No.1",
	"充值达人": "Top-up Expert",
	"玩家完成日常种植任务次数": "Times completing daily planting tasks",
	"玩家领取在线礼包次数": "Times claiming online gifts",
	"玩家积累开启大转盘次数": "Total wheel spins",
	"玩家积累进入游乐场": "Playground entries",
	"玩家积累挑战玩家": "Player challenges",
	"玩家积累掠夺玩家资源次数": "Resource raids",
	"玩家积累水晶": "Crystals accumulated",
	"成功积累石材数量": "Stone accumulated",
	"成功孵化5只宠物": "Hatch 5 pets",
	"农场主宠物等级达到": "Farmer pet level reaches",
	"玩家建设农场消耗次数": "Farm construction spending count",
	"击败并战胜对手个数": "Opponents defeated",
	"种植收获多少水果个数": "Fruit harvested",
	"积累消耗水果个数": "Fruit consumed",
	"成功升级场景主建筑": "Main building upgrades",
	"收集成就徽章个数": "Achievement badges collected",
	"成功签到天数": "Sign-in days",
	"成功收集碎片个数": "Shards collected",
	"成功抓捕小偷次数": "Thieves caught",
	"成功偷取玩家果实次数": "Player fruit stolen",
	"成为全世界第一名": "Reach world rank 1",
	"在商城钻石消费积累": "Gems spent in shop",
	"充值钻石次数": "Gem top-up count",
	"金桔种子999": "Kumquat Seed 999",
	"柚子种子": "Pomelo Seed",
	"圣女果种子": "Cherry Tomato Seed",
	"龙眼种子": "Longan Seed",
	"番石榴种子": "Guava Seed",
	"芒果种子": "Mango Seed",
	"木瓜种子": "Papaya Seed",
	"香瓜种子": "Melon Seed",
	"椰子种子": "Coconut Seed",
	"仙人掌果种子": "Cactus Fruit Seed",
	"牛奶果种子": "Milk Fruit Seed",
	"人参果种子": "Ginseng Fruit Seed",
	"葡萄种子": "Grape Seed",
	"菠萝种子": "Pineapple Seed",
	"金桔": "Kumquat",
	"柚子": "Pomelo",
	"圣女果": "Cherry Tomato",
	"龙眼": "Longan",
	"番石榴": "Guava",
	"芒果": "Mango",
	"木瓜": "Papaya",
	"香瓜": "Melon",
	"椰子": "Coconut",
	"仙人掌果": "Cactus Fruit",
	"牛奶果": "Milk Fruit",
	"人参果": "Ginseng Fruit",
	"葡萄": "Grape",
	"菠萝": "Pineapple",
	"普通化肥": "Basic Fertilizer",
	"高效化肥": "Advanced Fertilizer",
	"特效化肥": "Special Fertilizer",
	"极效化肥": "Extreme Fertilizer",
	"低档宠物粮": "Low-grade Pet Food",
	"中档宠物粮": "Mid-grade Pet Food",
	"高档宠物粮": "High-grade Pet Food",
	"补签卡": "Make-up Card",
	"田园风光": "Pastoral Scenery",
	"海滩风光": "Beach Scenery",
	"城市风光": "City Scenery",
	"农场风光": "Farm Scenery",
	"钻石": "Gems",
	"金币": "Gold",
	"大狗": "Large Pet",
	"超级杀虫剂": "Super Pesticide",
	"超级除草剂": "Super Herbicide",
	"猪崽": "Piglet",
	"鸡崽": "Chick",
	"牛崽": "Calf",
	"猪肉": "Pork",
	"牛肉": "Beef",
	"鸡肉": "Chicken",
	"牛奶": "Milk",
	"便便": "Manure",
	"鸡蛋": "Egg",
	"普通饲料": "Basic Feed",
	"中级饲料": "Medium Feed",
	"高级饲料": "Advanced Feed",
	"石材": "Stone",
	"钢材": "Steel",
	"红宝石": "Ruby",
	"绿宝石": "Emerald",
	"蓝宝石": "Sapphire",
	"黄宝石": "Topaz",
	"金色宝石": "Golden Gem",
	"红水晶": "Red Crystal",
	"绿水晶": "Green Crystal",
	"蓝水晶": "Blue Crystal",
	"黄水晶": "Yellow Crystal",
	"金水晶": "Gold Crystal",
	"绿色宠物蛋": "Green Pet Egg",
	"蓝色宠物蛋": "Blue Pet Egg",
	"紫色宠物蛋": "Purple Pet Egg",
	"橙色宠物蛋": "Orange Pet Egg",
	"白色宠物蛋": "White Pet Egg",
	"母鸡": "Hen",
	"奶牛": "Cow",
	"母猪": "Sow",
	"松狮": "Chow Chow",
	"棕色松狮": "Brown Chow Chow",
	"烈火松狮": "Flame Chow Chow",
	"爆炎松狮": "Blazing Chow Chow",
	"狼崽": "Wolf Pup",
	"灰狼": "Gray Wolf",
	"魔狼": "Demon Wolf",
	"魔狼王": "Demon Wolf King",
	"小蛇": "Snakelet",
	"独眼蛇": "One-eyed Snake",
	"红炎巨蟒": "Red Flame Python",
	"双头蛇王": "Two-headed Snake King",
	"熊头": "Bear Cub",
	"红眼熊": "Red-eyed Bear",
	"利爪熊": "Clawed Bear",
	"熊王": "Bear King",
	"小火兽": "Little Fire Beast",
	"火龙兽": "Fire Dragon Beast",
	"喷火龙": "Fire Dragon",
	"火龙王": "Fire Dragon King",
	"周卡": "Weekly Card",
	"月卡": "Monthly Card"
}

const TERM_REPLACEMENTS := {
	"等级礼包": "Level Gift",
	"在线礼包": "Online Gift",
	"兑换记录": "Exchange History",
	"农场主": "Farmer",
	"战斗力": "Power",
	"饱食度": "Fullness",
	"经验值": "EXP",
	"角色等级": "Character Level",
	"玩家": "Player",
	"金币": "Gold",
	"金豆": "Gold Bean",
	"钻石": "Gems",
	"礼包": "Gift",
	"等级": "Level",
	"经验": "EXP",
	"果实": "Fruit",
	"种子": "Seed",
	"道具": "Item",
	"物品": "Item",
	"宠物": "Pet",
	"战宠": "Battle Pet",
	"房屋": "House",
	"土地": "Land",
	"扩建": "Expand",
	"升级": "Upgrade",
	"领取": "Claim",
	"已领取": "Claimed",
	"未达成": "Locked",
	"购买": "Buy",
	"卖出": "Sell",
	"出售": "Sell",
	"兑换": "Exchange",
	"失败": "failed",
	"成功": "complete",
	"不足": "not enough",
	"暂无": "No",
	"读取": "Load",
	"加载": "Load",
	"已": "",
	"中": "",
	"需要": "needs",
	"获得": "received",
	"预计": "estimated",
	"剩余": "left",
	"今日": "today",
	"本周": "this week",
	"累计": "total",
	"签到": "sign-in",
	"补签": "make-up",
	"记录": "history",
	"可": "can",
	"进入": "enter",
	"挑战": "challenge",
	"竞技场": "arena",
	"排行榜": "leaderboard",
	"游乐园": "playground",
	"成就": "achievement",
	"普通": "basic",
	"神秘": "mystery",
	"商店": "shop",
	"背景": "background",
	"仓库": "warehouse",
	"好友": "friend",
	"家园": "home",
	"排名": "rank",
	"财富": "wealth",
	"语言": "language",
	"音乐": "music",
	"音效": "SFX",
	"帐号": "account",
	"装扮": "skin",
	"关闭": "close",
	"开启": "on",
	"离开": "leave",
	"单价": "price",
	"总计收入": "total",
	"比例": "rate",
	"次数": "times",
	"天": "days",
	"小时": "h",
	"分": "m",
	"秒": "s",
	"点": "pts",
	"个": "pcs",
	"张": "",
	"：": ": ",
	"，": ", ",
	"。": ".",
	"、": ", ",
	"（": "(",
	"）": ")",
}

static var _locale := LOCALE_EN
static var _loaded := false


static func available_languages() -> Array:
	return LANGUAGE_OPTIONS.duplicate(true)


static func current_locale() -> String:
	_ensure_loaded()
	return _locale


static func set_locale(locale: String) -> void:
	_ensure_loaded()
	_locale = _normalize_locale(locale)
	var config := ConfigFile.new()
	config.set_value(SETTINGS_SECTION, SETTINGS_LOCALE_KEY, _locale)
	config.save(SETTINGS_PATH)


static func language_label(locale: String) -> String:
	var normalized := _normalize_locale(locale)
	for option in LANGUAGE_OPTIONS:
		if str(option.get("code", "")) == normalized:
			return str(option.get("label", normalized))
	return normalized


static func t(value: Variant) -> String:
	_ensure_loaded()
	var text := str(value)
	if text.is_empty():
		return text
	if _locale != LOCALE_EN:
		return text
	return _translate_english(text)


static func format_duration(seconds: int) -> String:
	var left := maxi(seconds, 0)
	var days := int(left / 86400)
	left %= 86400
	var hours := int(left / 3600)
	left %= 3600
	var minutes := int(left / 60)
	var secs := left % 60
	if days > 0:
		return "%sd %sh %sm %ss" % [days, hours, minutes, secs]
	if hours > 0:
		return "%sh %sm %ss" % [hours, minutes, secs]
	if minutes > 0:
		return "%sm %ss" % [minutes, secs]
	return "%ss" % secs


static func list_separator() -> String:
	return ", " if current_locale() == LOCALE_EN else "、"


static func has_han(text: String) -> bool:
	for index in range(text.length()):
		var code := text.unicode_at(index)
		if code >= 0x4E00 and code <= 0x9FFF:
			return true
	return false


static func _translate_english(text: String) -> String:
	if EN.has(text):
		return str(EN.get(text))
	var result := text
	if result.ends_with("秒") and result.trim_suffix("秒").is_valid_int():
		return format_duration(int(result.trim_suffix("秒")))
	result = _replace_terms(result)
	if has_han(result):
		result = _strip_han(result)
	result = result.strip_edges()
	return result if not result.is_empty() else "Text"


static func _replace_terms(text: String) -> String:
	var result := text
	var keys := TERM_REPLACEMENTS.keys()
	keys.sort_custom(func(left, right) -> bool:
		return str(left).length() > str(right).length()
	)
	for key in keys:
		result = result.replace(str(key), str(TERM_REPLACEMENTS.get(key)))
	return result


static func _strip_han(text: String) -> String:
	var result := ""
	for index in range(text.length()):
		var code := text.unicode_at(index)
		if code >= 0x4E00 and code <= 0x9FFF:
			continue
		result += text.substr(index, 1)
	return result


static func _ensure_loaded() -> void:
	if _loaded:
		return
	_loaded = true
	var config := ConfigFile.new()
	if config.load(SETTINGS_PATH) == OK:
		_locale = _normalize_locale(str(config.get_value(SETTINGS_SECTION, SETTINGS_LOCALE_KEY, LOCALE_EN)))
	else:
		_locale = LOCALE_EN


static func _normalize_locale(locale: String) -> String:
	for option in LANGUAGE_OPTIONS:
		if str(option.get("code", "")) == locale:
			return locale
	return LOCALE_EN