UGCSystemLibrary = UGCSystemLibrary or {}

UGCSystemLibrary.IsServer = nil
-- 缓存的资产
UGCSystemLibrary.CacheAsset = {}




------------------------------------------------ 获取本地信息 ------------------------------------------------

function UGCSystemLibrary.GetLocalPlayerController()
    if not UE.IsValid(UGCSystemLibrary.LocalController) and UGCGameSystem.GameState then
        UGCSystemLibrary.LocalController = STExtraGameplayStatics.GetFirstPlayerController(UGCGameSystem.GameState)
    end
    return UGCSystemLibrary.LocalController
end

function UGCSystemLibrary.GetLocalPlayerKey() return UGCSystemLibrary.GetLocalPlayerController().PlayerKey end

function UGCSystemLibrary.GetLocalPlayerPawn() return UGCGameSystem.GetPlayerPawnByPlayerKey(UGCSystemLibrary.GetLocalPlayerKey()) end

function UGCSystemLibrary.GetGameTime()
    if UGCGameSystem.GameState then
        return KismetSystemLibrary.GetGameTimeInSeconds(UGCGameSystem.GameState)
    else
        return 0.
    end
end

---------------------------------------------- 获取本地信息 End ----------------------------------------------


--- 通过资产路径去获取场景唯一实例
---@param AssetPath string
function UGCSystemLibrary.GetUniqueInstanceFromPath(AssetPath)
    local ObjClass = UE.LoadClass(AssetPath)
    return UGCSystemLibrary.GetUniqueInstanceFromClass(ObjClass)
end

--- 通过资产类去获取场景唯一实例
---@param ObjClass UClass
function UGCSystemLibrary.GetUniqueInstanceFromClass(ObjClass)
    if UE.IsValid(ObjClass) then
        local AllActor = ScriptGameplayStatics.GetActorsOfClass(UGCGameSystem.GameState, ObjClass)
        for i, v in pairs(AllActor) do return v end
    end
    return nil
end


local RootPackagePath = UGCMapInfoLib.GetRootLongPackagePath()

function UGCSystemLibrary.GetFullPath(InPath)
    if type(InPath) ~= "string" then return "" end

    if #RootPackagePath > #InPath or string.sub(InPath, 1, #RootPackagePath) ~= RootPackagePath then
        InPath = RootPackagePath..InPath
    end

    return InPath
end


------------------------------------------ Load ------------------------------------------
--- {URL = Asset}
UGCSystemLibrary.DownloadImageAsset = {}
--- 下载图像
function UGCSystemLibrary.DownloadImage(URL, bSaveAsset, CallBackFunc, Obj)
    if UE.IsValid(UGCSystemLibrary.DownloadImageAsset[URL]) then
        if Obj then
            CallBackFunc(Obj, UGCSystemLibrary.DownloadImageAsset[URL])
        else
            CallBackFunc(UGCSystemLibrary.DownloadImageAsset[URL])
        end
    else

        local ResHandle = AsyncTaskDownloadImage.DownloadImage(URL)
        --ResHandle.OnSuccess:Add(CallBackFunc, Obj)
        --ResHandle.OnFail:Add(CallBackFunc, Obj)
        ResHandle.OnSuccess:Add(CallBackFunc)
        ResHandle.OnFail:Add(CallBackFunc)
        if bSaveAsset then
            ResHandle.OnSuccess:Add(
                function(Texture)
                    UGCSystemLibrary.DownloadImageAsset[URL] = Texture
                end
            )
        end
    end
end


UGCSystemLibrary.DownloadImageCache = {}
--- 下载图像至UImage
---@param Image UImage*
---@param URL string
---@param IsSave boolean
function UGCSystemLibrary.DownloadImageToUImage(Image, URL, IsSave)
    if UE.IsValid(UGCSystemLibrary.DownloadImageCache[URL]) then
        Image:SetBrushFromTextureDynamic(UGCSystemLibrary.DownloadImageCache[URL])
    else
        UGCSystemLibrary.DownloadImage(URL, true,
                function(Texture)
                    if UE.IsValid(Texture) then
                        Image:SetBrushFromTextureDynamic(Texture)
                        if IsSave then
                            UGCSystemLibrary.DownloadImageCache[URL] = Texture
                        end
                    else
                        UGCLogSystem.LogError("[UGCSystemLibrary_DownloadImageToUImage] Download Texture Failure. URL: %s", URL)
                    end
                end
        )
    end
end

---------------------------------------- Load End ----------------------------------------

-- OverlappedComponent, OtherActor, OtherComp, OtherBodyIndex, bFromSweep, SweepResult
function UGCSystemLibrary.BindBeginOverlapFunc(CollisionComponent, Func, Obj) CollisionComponent.OnComponentBeginOverlap:Add(Func, Obj) end

function UGCSystemLibrary.BindEndOverlapFunc(CollisionComponent, Func, Obj) CollisionComponent.OnComponentEndOverlap:Add(Func, Obj) end


function UGCSystemLibrary.formatTime(seconds, ShowMinutes, ShowHours, ShowRemainingSeconds)
    if ShowMinutes == nil then ShowMinutes = false end
    if ShowHours == nil then ShowHours = false end
    if ShowRemainingSeconds == nil then ShowRemainingSeconds = false end
    local hours = math.floor(seconds / 3600)
    local minutes = math.floor((seconds - hours * 3600) / 60)
    local remainingSeconds = seconds - hours * 3600 - minutes * 60
    local ResTime = ""
    ResTime = ResTime .. ((hours > 0 or ShowHours) and string.format("%02d:", hours) or "")
    ResTime = ResTime .. ((minutes > 0 or hours > 0 or ShowHours or ShowMinutes) and string.format("%02d:", minutes) or "")
    ResTime = ResTime .. (ShowRemainingSeconds and string.format("%02.3f", remainingSeconds) or string.format("%02.0f", remainingSeconds))
    return ResTime
end

---@param AssetPath:string
---@param CallBackFunc:fun(LoadObject:UObject,resID:int32)
---@param Obj:table CallBackFunc拥有者
---@param SaveAsset:bool 是否保存
function UGCSystemLibrary.AsyncLoadAsset(AssetPath, CallBackFunc, Obj, SaveAsset)
    if not UE.IsValid(UGCSystemLibrary.CacheAsset[AssetPath]) then
        local softObjPath = KismetSystemLibrary.MakeSoftObjectPath(AssetPath);
        STExtraBlueprintFunctionLibrary.GetAssetByAssetReferenceAsync(softObjPath,
                ObjectExtend.CreateDelegate(UGCGameSystem.GameState, function(LoadObject, resID)
                    if CallBackFunc then
                        if Obj ~= nil then CallBackFunc(Obj, LoadObject) else CallBackFunc(LoadObject) end
                    end
                    if UE.IsValid(LoadObject) and SaveAsset then UGCSystemLibrary.CacheAsset[AssetPath] = LoadObject end
                end), true);
    else
        if CallBackFunc then
            if Obj ~= nil then CallBackFunc(Obj, UGCSystemLibrary.CacheAsset[AssetPath]) else CallBackFunc(UGCSystemLibrary.CacheAsset[AssetPath]) end
        end
    end
end

--- 通过路径获取DataTable
---@param DataTablePath string
---@param ToNumberKey bool 是否将Key值转化为Number类型再返回
function UGCSystemLibrary.GetDataTableFromPath(DataTablePath, ToNumberKey)
    local ResDataTable = Gameplay.GetTable(DataTablePath)

    if ToNumberKey then
        local Res = {}
        for i, v in pairs(ResDataTable) do
            Res[tonumber(i)] = v
        end
        return Res
    else
        return ResDataTable
    end
end

--- 通过ItemID获取item类型
---@param ItemID int
---@return ItemTypeID int
function UGCSystemLibrary.GetItemTypeID(ItemID) return ItemID // 1000 end

--- 输入PlayerKey获取活着的玩家，若玩家已死亡或者不存在PlayerKey对应的Pawn时则返回nil
---@param PlayerKey uint
---@return Pawn
function UGCSystemLibrary.GetAlivePlayerPawnByPlayerKey(PlayerKey)
    local PlayerPawn = UGCGameSystem.GetPlayerPawnByPlayerKey(PlayerKey)
    return (UE.IsValid(PlayerPawn) and PlayerPawn:IsAlive()) and PlayerPawn or nil
end



--- 最多循环加50次
UGCSystemLibrary.LoopAddItemCountMax = 50
UGCSystemLibrary.LoopAddItemHandle = nil
UGCSystemLibrary.PlayerAddItemInfo = {} -- PlayerKey = {ItemID, Count, LoopNum}
---添加道具
---生效范围：服务器
---@return IsSucceed bool
---@param PlayerPawn PlayerPawn* @玩家角色
---@param ItemID int @物品ID
---@param Count int @数量
function UGCSystemLibrary.AddItem(PlayerPawn, ItemID, Count)

    if UE.IsValid(PlayerPawn) then
        local bSucceed = UGCBackPackSystem.AddItem(PlayerPawn, ItemID, Count)
        if not bSucceed then
            UGCLogSystem.Log("[UGCSystemLibrary_AddItem]")
            if UGCSystemLibrary.PlayerAddItemInfo[PlayerPawn.PlayerKey] == nil then
                UGCSystemLibrary.PlayerAddItemInfo[PlayerPawn.PlayerKey] = {}
            end
            UGCSystemLibrary.PlayerAddItemInfo[PlayerPawn.PlayerKey][#UGCSystemLibrary.PlayerAddItemInfo[PlayerPawn.PlayerKey] + 1] = {ItemID =  ItemID, Count = Count, LoopNum = 0}
            if UGCSystemLibrary.LoopAddItemHandle == nil then
                UGCSystemLibrary.LoopAddItemHandle = UGCEventSystem.SetTimerLoop(UGCGameSystem.GameState,
                        function()
                            local PlayerKeys = table.getKeys(UGCSystemLibrary.PlayerAddItemInfo)
                            for _, PlayerKey in PlayerKeys do
                                local ItemInfos = table.DeepCopy(UGCSystemLibrary.PlayerAddItemInfo[PlayerKey])
                                local TargetPawn = UGCGameSystem.GetPlayerPawnByPlayerKey(PlayerKey)
                                if UE.IsValid(TargetPawn) then
                                    for i = #ItemInfos, 1, 1 do
                                        bSucceed = UGCBackPackSystem.AddItem(TargetPawn, ItemInfos[i].ItemID, ItemInfos[i].Count)
                                        -- 成功加入或者超过添加次数则移除
                                        if bSucceed then
                                            UGCSystemLibrary.PlayerAddItemInfo[PlayerKey][i] = nil
                                        else
                                            if ItemInfos[i].LoopNum >= UGCSystemLibrary.LoopAddItemCountMax then
                                                UGCLogSystem.LogError("[UGCSystemLibrary_AddItem] PlayerKey:%s,AddItem:%s  Failue", tostring(PlayerKey), tostring(ItemInfos[i].ItemID))
                                            else
                                                ItemInfos[i].LoopNum = ItemInfos[i].LoopNum + 1
                                            end
                                        end
                                    end
                                    if #UGCSystemLibrary.PlayerAddItemInfo[PlayerKey] == 0 then
                                        UGCSystemLibrary.PlayerAddItemInfo[PlayerKey] = nil
                                    end
                                else
                                    UGCSystemLibrary.PlayerAddItemInfo[PlayerKey] = nil
                                end
                            end
                            if table.getCount(UGCSystemLibrary.PlayerAddItemInfo) == 0 then
                                UGCEventSystem.StopTimer(UGCSystemLibrary.LoopAddItemHandle)
                            end
                            UGCLogSystem.Log("[UGCSystemLibrary_AddItem] Finish")
                        end,
                        0.1
                )
            end
        end
    else
        UGCLogSystem.LogError("[UGCSystemLibrary_AddItem] PlayerPawn is nil")
    end

end

--- 判断物体是否可以看到玩家
---@param ObjectContext 目标物体
---@param EyePos 物体开始检测的位置
---@param TargetPlayerPawn 目标玩家
---@param LineTraceChannels 检测的通道，默认为{ECollisionChannel.ECC_WorldStatic, ECollisionChannel.ECC_WorldDynamic, ECollisionChannel.ECC_Pawn}
function UGCSystemLibrary.CanSeePlayer(ObjectContext, EyePos, TargetPlayerPawn, LineTraceChannels)
    if not (UE.IsValid(ObjectContext) and UE.IsValid(TargetPlayerPawn)) then
        return
    end

    if LineTraceChannels == nil then
        LineTraceChannels = {ECollisionChannel.ECC_WorldStatic, ECollisionChannel.ECC_WorldDynamic, ECollisionChannel.ECC_Pawn}
    end
    -- UGCLogSystem.Log("[UGCSystemLibrary_CanSeePlayer] TargetPlayerPawn:%s", KismetSystemLibrary.GetObjectName(TargetPlayerPawn))
    --local SkeletonSocketNames = {"head", "spine_01", "hand_l", "hand_r", "foot_r", "foot_l"}
    local PawnPos = TargetPlayerPawn:K2_GetActorLocation()
    local UpPawnPos = table.DeepCopy(PawnPos)
    local DownPawnPos = table.DeepCopy(PawnPos)
    UpPawnPos.Z = UpPawnPos.Z + 80
    DownPawnPos.Z = DownPawnPos.Z - 80
    --for i, SocketName in pairs(SkeletonSocketNames) do
    for i, EndPos in pairs({UpPawnPos, PawnPos, DownPawnPos}) do
        -- local BornSocketPos = TargetPlayerPawn.Mesh:GetSocketLocation(SocketName)
        --if BornSocketPos then
        ---@field LineTraceSingleForObjects fun(WorldContextObject:UObject,Start:FVector,End:FVector,ObjectTypes:ULuaArrayHelper,bTraceComplex:bool,ActorsToIgnore:ULuaArrayHelper,DrawDebugType:EDrawDebugTrace,OutHit:FHitResult,bIgnoreSelf:bool,TraceColor:FLinearColor,TraceHitColor:FLinearColor,DrawTime:float):bool,FHitResult
        local bSucceed, HitResult = KismetSystemLibrary.LineTraceSingleForObjects(ObjectContext, EyePos, EndPos, LineTraceChannels, false, {ObjectContext, })
        if bSucceed then
            local HitActor = HitResult.Actor:Get()
            if HitActor == TargetPlayerPawn then
                return true
            else
                UGCLogSystem.Log("[UGCSystemLibrary_CanSeePlayer]HitActorName:%s", KismetSystemLibrary.GetObjectName(HitActor))
            end
        end
        --else
        --    UGCLogSystem.LogError("[UGCSystemLibrary_CanSeePlayer] BornSocketPos is nil")
        --end
    end
    return false
end


--- 通过类名销毁物体
--- 拾取物"PickUpWrapperActor"
--- 死亡盒子"PlayerTombBox"
--- 已投出的投掷物 "EliteProjectile"
function UGCSystemLibrary.RemoveActorFromClassName(ClassName)
    local PlayerTombBoxClass = ScriptGameplayStatics.FindClass(ClassName);
    if UE.IsValid(PlayerTombBoxClass) then
        local PlayerTombBoxs = ScriptGameplayStatics.GetActorsOfClass(UGCGameSystem.GameState, PlayerTombBoxClass, {})
        for i, PlayerTombBox in ipairs(PlayerTombBoxs) do
            if PlayerTombBox ~= nil then
                PlayerTombBox:K2_DestroyActor();
            end
        end
    else
        UGCLogSystem.LogError("[UGCSystemLibrary_RemoveActorFromClassName] %sClass is not Valid", tostring(ClassName))
    end
end

--- 清除PickUpActor 忽略传入的ItemID
function UGCSystemLibrary.ClearPickUpActor(IgnoreItemIDs)
    if IgnoreItemIDs == nil then
        IgnoreItemIDs = {}
    end
    local PickUpActorClass = ScriptGameplayStatics.FindClass("PickUpWrapperActor");
    if UE.IsValid(PickUpActorClass) then
        local PickUpActors = ScriptGameplayStatics.GetActorsOfClass(UGCGameSystem.GameState, PickUpActorClass, {})
        --
        for i, PickUpActor in ipairs(PickUpActors) do
            if PickUpActor ~= nil then
                local ItemID = PickUpActor.DefineID.TypeSpecificID
                -- UGCLogSystem.Log("[UGCSystemLibrary_ClearPickUpActor]ItemID:%s", tostring(ItemID))
                if not table.hasValue(IgnoreItemIDs, ItemID) then
                    PickUpActor:K2_DestroyActor();
                end
            end
        end
    else
        UGCLogSystem.LogError("[UGCSystemLibrary_ClearPickUpActor] PickUpWrapperActor Class is not Valid")
    end
end

-- [PlayerKey] = {Handle, RespawnGameTime}
UGCSystemLibrary.RespawnPlayerHandlesInfo = {}
-- 重置玩家
function UGCSystemLibrary.RespawnPlayer(PlayerKey, Time)
    -- 不进行瞬时重生，防止同一帧重复调用
    if Time == nil then Time = 0.1 end
    local NowTime = UGCSystemLibrary.GetGameTime()
    local RespawnHandleInfo = UGCSystemLibrary.RespawnPlayerHandlesInfo[PlayerKey]
    if RespawnHandleInfo then
        -- 若多次调用则仅采用长的复活时间
        if Time + NowTime <= RespawnHandleInfo.RespawnGameTime then
            return
        end
    end

    -- 删除之前的复活Handle
    if UGCSystemLibrary.RespawnPlayerHandlesInfo[PlayerKey] then
        UGCEventSystem.StopTimer(UGCSystemLibrary.RespawnPlayerHandlesInfo[PlayerKey].Handle)
    end
    UGCSystemLibrary.RespawnPlayerHandlesInfo[PlayerKey] = {}
    -- 构建新的符合Handle
    UGCSystemLibrary.RespawnPlayerHandlesInfo[PlayerKey].Handle = UGCEventSystem.SetTimer(UGCGameSystem.GameState, function()
        UGCSystemLibrary.RespawnPlayerHandlesInfo[PlayerKey] = nil
        local PlayerPawn = UGCGameSystem.GetPlayerPawnByPlayerKey(PlayerKey)
        if UE.IsValid(PlayerPawn) then
            PlayerPawn:K2_DestroyActor()
        end
        UGCGameSystem.RespawnPlayer(PlayerKey)
    end, Time)
    UGCSystemLibrary.RespawnPlayerHandlesInfo[PlayerKey].RespawnGameTime = Time + NowTime

end


--- Server
--- 设置pawn是否可移动
function UGCSystemLibrary.SetPlayerPawnMovable(InPawn, IsMovable)
    UGCPawnSystem.DisabledPawnState(InPawn, EPawnState.Move         , not IsMovable);
    UGCPawnSystem.DisabledPawnState(InPawn, EPawnState.Shoveling    , not IsMovable);
    UGCPawnSystem.DisabledPawnState(InPawn, EPawnState.Jump         , not IsMovable);
    UGCPawnSystem.DisabledPawnState(InPawn, EPawnState.GunFire      , not IsMovable);
    UGCPawnSystem.DisabledPawnState(InPawn, EPawnState.HoldGrenade  , not IsMovable);
    UGCPawnSystem.DisabledPawnState(InPawn, EPawnState.MeleeAttack  , not IsMovable);
end

function UGCSystemLibrary.SetAllPawnMovable(IsMovable)
    local AllPawn = UGCGameSystem.GetAllPlayerPawn()
    for i, v in pairs(AllPawn) do
        UGCSystemLibrary.SetPlayerPawnMovable(v, IsMovable)
    end
end


--- Server
--- 设置玩家是否可移动
function UGCSystemLibrary.SetPlayerIsMovable(PlayerController, IsMovable)
    if UE.IsValid(PlayerController) then
        UGCLogSystem.Log("[UGCSystemLibrary_SetPlayerIsMovable] PlayerController:%s", tostring(PlayerController.PlayerKey))
        if IsMovable then
            -- 关闭电影模式，启用玩家移动
            PlayerController:SetCinematicMode(false, false, false, true, false)
        else
            -- 开启电影模式，禁止玩家移动
            PlayerController:SetCinematicMode(true, false, false, true, false)
        end
    else
        UGCLogSystem.LogError("[UGCSystemLibrary_SetPlayerIsMovable] PlayerController Is Not Valid")
    end
end

--- Server
--- 设置所有玩家是否可移动
function UGCSystemLibrary.SetAllPlayerIsMovable(IsMovable)
    local TempPlayerControllers = UGCGameSystem.GetAllPlayerController(true)
    for _, PC in pairs(TempPlayerControllers) do
        UGCSystemLibrary.SetPlayerIsMovable(PC, IsMovable)
    end
end

--------------------------------------------- 准备状态 ---------------------------------------------
--[[
需要在Pawn内的ReceivePossessed函数中加入
function UGCPlayerPawn:ReceivePossessed(NewController)
    if UGCSystemLibrary.GetIsPreparationState() then
        UGCSystemLibrary.SetPlayerPawnMovable(self, false)
    end
end
]]

-- 准备时间
UGCSystemLibrary.PreparationTime = 0;
-- 是否为准备阶段
UGCSystemLibrary.IsPreparationState = false;
--- Server
--- 进入准备状态
function UGCSystemLibrary.EnterPreparationState()
    UGCSystemLibrary.IsPreparationState = true
    if UGCEventSystem.PreparationStateHandle then
        UGCEventSystem.StopTimer(UGCEventSystem.PreparationStateHandle)
    end
    UGCEventSystem.PreparationStateHandle = UGCEventSystem.SetTimer(UGCGameSystem.GameState, function()
        UGCSystemLibrary.SetAllPawnMovable(true)
        UGCSystemLibrary.IsPreparationState = false
        UGCEventSystem.PreparationStateHandle = nil
    end, UGCSystemLibrary.PreparationTime)
end

function UGCSystemLibrary.GetIsPreparationState()
    return UGCSystemLibrary.IsPreparationState
end

function UGCSystemLibrary.SetPreparationTime(InPreparationTime)
    if InPreparationTime >= 0 then
        UGCSystemLibrary.PreparationTime = InPreparationTime
    end
end



------------------------------------------- 准备状态 End -------------------------------------------

--- 获取所有的PlayerKey
function UGCSystemLibrary.GetAllPlayerKeys()
    local AllPC = UGCGameSystem.GetAllPlayerController()
    local Res = {}
    for i, v in pairs(AllPC) do
        Res[#Res + 1] = v.PlayerKey
    end
    return Res
end

--- 给玩家的所有武器补满当前弹夹子弹
function UGCSystemLibrary.PlayerFullBullet(InPlayerKey)
    local TargetPawn = UGCGameSystem.GetPlayerPawnByPlayerKey(InPlayerKey)
    if UE.IsValid(TargetPawn) then
        --补满子弹
        TargetPawn:SetAllWeaponBulletNumToMaxOnServer(true, false)
        for i, v in pairs(ShootWeaponEnums) do
            local Weapon = UGCWeaponManagerSystem.GetWeaponBySlot(TargetPawn, v)
            if UE.IsValid(Weapon) then
                UGCGunSystem.EnableClipInfiniteBullets(Weapon, true)
                local MaxBulletNumInOneClip = UGCGunSystem.GetMaxBulletNumInOneClip(Weapon)
                Weapon:SetCurrentBulletNumInClipOnServer(MaxBulletNumInOneClip, true)
                -- 玩家离开换弹状态
                if UE.IsValid(TargetPawn) then
                    UGCPawnSystem.LeavePawnState(TargetPawn, EPawnState.Roload)
                end
            end
        end
    end
end

--- 重置和平里的击杀和助攻数
function UGCSystemLibrary.ResetAllPlayerKillsAndAssists()
    local AllPS = UGCGameSystem.GetAllPlayerState()
    for i, PS in pairs(AllPS) do
        PS.Kills = 0
        PS.Assists = 0
        PS.KillPlayerNum = 0
        DOREPONCE(PS,"Kills")
        DOREPONCE(PS,"Assists")
        DOREPONCE(PS,"KillPlayerNum")
    end
end

--- 获取当天为一年中的第几天
function UGCSystemLibrary.GetDayOfYear()
    local now = os.time()
    local year = os.date("*t", now).year
    local startOfYear = os.time{year = year, month = 1, day = 1}
    local days = os.difftime(now, startOfYear) / (24 * 60 * 60)
    return math.floor(days) + 1  -- 加1是因为Lua里月份和天数是从1开始计数的
end

--- 获取现实时间秒
function UGCSystemLibrary.GatRealTimeSeconds()
    return os.time()
end


--- 获取UTF-8字符串的长度
function UGCSystemLibrary.utf8len(s)
    local len = 0
    local i = 1
    local c = string.byte(s, i)
    while c do
        if c > 0 and c <= 127 then
            i = i + 1
        elseif c >= 194 and c <= 223 then
            i = i + 2
        elseif c >= 224 and c <= 239 then
            i = i + 3
        elseif c >= 240 and c <= 244 then
            i = i + 4
        else
            return nil -- invalid UTF-8
        end
        len = len + 1
        c = string.byte(s, i)
    end
    return len
end

--- 裁剪UTF-8字符串
function UGCSystemLibrary.utf8sub(s, startChar, numChars)
    local startIndex = 1
    while startChar > 1 do
        local c = string.byte(s, startIndex)
        if not c then return "" end
        if c > 0 and c <= 127 then
            startIndex = startIndex + 1
        elseif c >= 194 and c <= 223 then
            startIndex = startIndex + 2
        elseif c >= 224 and c <= 239 then
            startIndex = startIndex + 3
        elseif c >= 240 and c <= 244 then
            startIndex = startIndex + 4
        else
            return "" -- invalid UTF-8
        end
        startChar = startChar - 1
    end

    local currentIndex = startIndex
    while numChars > 0 and currentIndex <= #s do
        local c = string.byte(s, currentIndex)
        if not c then break end
        if c > 0 and c <= 127 then
            currentIndex = currentIndex + 1
        elseif c >= 194 and c <= 223 then
            currentIndex = currentIndex + 2
        elseif c >= 224 and c <= 239 then
            currentIndex = currentIndex + 3
        elseif c >= 240 and c <= 244 then
            currentIndex = currentIndex + 4
        else
            break -- invalid UTF-8
        end
        numChars = numChars - 1
    end
    return s:sub(startIndex, currentIndex - 1)
end

function UGCSystemLibrary.remove_punctuation(s)
    -- 定义要移除的标点符号
    local punctuation = {
        ["。"] = true, ["，"] = true, ["！"] = true, ["？"] = true,
        ["."] = true, [","] = true, ["!"] = true, ["?"] = true,
        ["；"] = true, ["："] = true, [";"] = true, [":"] = true,
        ["、"] = true, ["（"] = true, ["）"] = true, ["("] = true, [")"] = true,
        ["【"] = true, ["】"] = true, ["["] = true, ["]"] = true,
        ["“"] = true, ["”"] = true, ["\""] = true, ["'"] = true,
        ["\n"] = true, ["\r"] = true,
    }

    local result = {}
    local i = 1
    local c = string.byte(s, i)
    while c do
        local char_len = 1
        if c > 0 and c <= 127 then
            char_len = 1
        elseif c >= 194 and c <= 223 then
            char_len = 2
        elseif c >= 224 and c <= 239 then
            char_len = 3
        elseif c >= 240 and c <= 244 then
            char_len = 4
        else
            return "" -- invalid UTF-8
        end

        local char = s:sub(i, i + char_len - 1)
        print(char .. "--")
        if not punctuation[char] then
            table.insert(result, char)
        end

        i = i + char_len
        c = string.byte(s, i)
    end

    return table.concat(result)
end

--- 移除标点符号
function UGCSystemLibrary.remove_character(s, char_to_remove)
    local result = {}
    local i = 1
    local c = string.byte(s, i)
    while c do
        local char_len = 1
        if c > 0 and c <= 127 then
            char_len = 1
        elseif c >= 194 and c <= 223 then
            char_len = 2
        elseif c >= 224 and c <= 239 then
            char_len = 3
        elseif c >= 240 and c <= 244 then
            char_len = 4
        else
            return "" -- invalid UTF-8
        end
        UGCLogSystem.Log("[UGCSystemLibrary_remove_character] c:%s", c)

        local char = s:sub(i, i + char_len - 1)
        if char ~= char_to_remove then
            UGCLogSystem.Log("[UGCSystemLibrary_remove_character] Add")
            table.insert(result, char)
        end

        i = i + char_len
        c = string.byte(s, i)
    end

    return table.concat(result)
end

--- 概率函数，输入为概率列表，输出为依据概率随机出来的索引
function UGCSystemLibrary.RandomIndex(probabilities)
    local sum = 0
    local cumulative = {}

    -- 计算概率总和，并构建累积概率列表
    for i, prob in ipairs(probabilities) do
        sum = sum + prob
        cumulative[i] = sum
    end

    -- 生成一个0到sum之间的随机数
    local randomValue = math.random() * sum

    -- 根据随机数选择对应的索引
    for i, cumProb in ipairs(cumulative) do
        if randomValue <= cumProb then
            return i
        end
    end
end




--- 获取其他队伍的ID
---@param TeamID uint 忽略的队伍ID
---@return TeamIDs table 其他队伍ID
function UGCTeamSystem.GetOtherTeamIDs(TeamID)
    local TeamIDs = UGCTeamSystem.GetTeamIDs()
    local Res = {}
    for i, v in pairs(TeamIDs) do
        if v ~= TeamID then
            Res[#Res + 1] = v
        end
    end
    return Res
end

--- 获取其他队伍的玩家
---@param TeamID uint 忽略的队伍ID
---@return PlayerKeys table 其他玩家PlayerKey
function UGCTeamSystem.GetOtherTeamPlayerKeys(TeamID)
    local OtherTeamIDs = UGCTeamSystem.GetOtherTeamIDs(TeamID)
    local Res = {}
    for i, v in pairs(OtherTeamIDs) do
        local OtherPlayerKeys = UGCTeamSystem.GetPlayerKeysByTeamID(v)
        for _, PlayerKey in pairs(OtherPlayerKeys) do
            Res[#Res + 1] = PlayerKey
        end
    end
    return Res
end

--- 获取队伍成员PlayerKey
---@return PlayerKeys table 队伍玩家PlayerKey
function UGCTeamSystem.GetTeammates(PlayerKey)
    local Res = {}
    local TeamID = UGCPlayerStateSystem.GetTeamID(PlayerKey)
    UGCLogSystem.Log("[UGCTeamSystem_GetTeammates] TeamID:%s", tostring(TeamID))
    local Teammates = UGCTeamSystem.GetPlayerKeysByTeamID(TeamID)
    for i, v in pairs(Teammates) do
        Res[#Res + 1] = v
    end
    return Res
end