local String_Utility = {}
local private = {}
local _stringIdDict={}
local UNIT_DESC
local HUNDRED_MILLION_UNIT_DESC

local MailParamFormatType = {
	OfficialPositionTitle = "1",
	OfficialPositionGrade = "2",
	ThreeTeamFightLevel = "3",
	ThreeTeamFightReward = "4",
	TimeStamp2HourMinute = "5", --时间戳转【时:分】,解决时间的本地化
}

local base_pb = require("Proto/base_pb")

local showKB = "%dKB"
local showMB = "%.2fMB"

local BYTE_ZERO_NUM = string.byte(0)
local BYTE_NINE_NUM = string.byte(9)

local IDS_PREFIX = "IDS"
local combineIdsParams = {}

local IDS_COUNTRY_NAME = {
	[LuaConst.Kingdom.Wei] = "IDS_DrawCard_PageTitle_WEI",
	[LuaConst.Kingdom.Shu] = "IDS_DrawCard_PageTitle_SHU",
	[LuaConst.Kingdom.Wu] = "IDS_DrawCard_PageTitle_WU",
	[LuaConst.Kingdom.Qun] = "IDS_DrawCard_PageTitle_QUN",
}

local COLOR_COUNTRY_NAME = {
	[LuaConst.Kingdom.Wei] = "6f8ace",
	[LuaConst.Kingdom.Shu] = "5ec56f",
	[LuaConst.Kingdom.Wu] = "e05c59",
	[LuaConst.Kingdom.Qun] = "d5a35e",
}

function String_Utility.OnStartup()
	private.InitStringUtil()
end

--一个汉字算一位
function String_Utility.GetStrLen(input)
    local len  = string.len(input)
    local left = len
    local cnt  = 0
    local arr  = {0, 0xc0, 0xe0, 0xf0, 0xf8, 0xfc}
    while left ~= 0 do
        local tmp = string.byte(input, -left)
        local i   = #arr
        while arr[i] do
            if tmp >= arr[i] then
                left = left - i
                break
            end
            i = i - 1
        end
        cnt = cnt + 1
    end
    return cnt
end

function String_Utility.CutStrByLength(str, length)
	local last = #str + 1
	local prev = nil
	local sum = 0
	local len = 0
	for i in utf8.byte_indices(str) do
		if prev then
			local count = i - prev
			if count == 3 then	--汉字
				sum = sum + 2
			else
				sum = sum + 1
			end
			len = len + 1
		end
		if length and sum >= length then
			return string.sub(str, 1, i-1)
		end
		prev = i
	end

	if prev then
		local count = last - prev
		if count == 3 then	--汉字
			sum = sum + 2
		else
			sum = sum + 1
		end
		len = len + 1
	end

	if length and sum > length then
		return string.sub(str, 1, prev-1)
	end

	return str
end

--返回utf8字符串占的总字符数（汉字占2 其他占1）
function String_Utility.GetStrCharCount(str,chineseLength) --chineseLength 一个汉字算几个字符 
	local last = #str + 1
	local prev = nil
	local sum = 0
	chineseLength = chineseLength or 2
	for i in utf8.byte_indices(str) do
		if prev then 
			local count = i - prev
			if count == 3 then	--汉字
				sum = sum + chineseLength
			else
				sum = sum + 1
			end
		end
		prev = i
	end
	
	if prev then
		local count = last - prev
		if count == 3 then	--汉字
			sum = sum + chineseLength
		else
			sum = sum + 1
		end
	end
	
	return sum
end

function String_Utility.GetTextCharLengthWithoutRichTag(text)
	if string.isNilOrEmpty(text) then
		return 0
	end
	
	local rawLength = String_Utility.GetStrCharCount(text)
	for str in string.gmatch(text, "%b<>") do
		rawLength = rawLength - String_Utility.GetStrCharCount(str)
	end
	
	return rawLength
end

function String_Utility.IsChineseChar(str)
	local prev = nil
	for i in utf8.byte_indices(str) do
		if prev then 
			local count = i - prev
			if count ~= 3 then	--汉字
				return  false
			end
		end
		prev = i
	end
	return true
end

--返回协议消息字符串
function String_Utility.GetMessageStr(strParams)
    local str
    if strParams then
        for i, v in ipairs(strParams) do
            str = v
            break
        end
    end
    return str
end

--邮件参数解析
--1、文本（IDS）
--2、非文本 <MailParam>formatType|param</MailParam>
function String_Utility.GetMessageFormatStr(strFormat,strParams)
    --local str = UIUtils.GetLocalizedTxt(Const_IDS[strFormat])
	if strParams then
		for i, v in ipairs(strParams) do
			if string.match(v,"^IDS") then
				strParams[i] = UIUtils.GetLocalizedTxt(Const_IDS[v])
			else
				local formatType, param = string.match(v, "^<MailParam>(%d+)|(%w+)</MailParam>$", 1)
				if formatType and param then
					if formatType == MailParamFormatType.OfficialPositionTitle then
						strParams[i] = CTL.OfficialPosition.GetColorTitleFullTxt(tonumber(param))
					end
				end
			end
		end
		return string.FormatByIdsId(Const_IDS[strFormat],unpack(strParams))
	end
    return UIUtils.GetLocalizedTxt(Const_IDS[strFormat])
end

--string 和 int  的映射，用于传递给C#使用，避免内存分配
function String_Utility.GetIdByString(str)
	if _stringIdDict[str] ~=nil then
		return _stringIdDict[str]
	end
	local newId= UIUtils.SaveStringToId(str)
	_stringIdDict[str]=newId
	return newId
end

function String_Utility.SetLabelContent(label,content)
	if type(content) == "number" then
		--IDS
		UIUtils.SetLabelText(label,content)
	else
		UIUtils.SetLabel(label,content)
	end
end

-- 字节大小转换 size默认为KB 根据大小转换MB或KB
function String_Utility.TransferKiloBytesSize(size)
	if size == nil then
		return string.format(showKB, 0);
	end
	if size >= 1024 then
		return string.format(showMB, size / 1024)
	end
	return string.format(showKB, size);
end

function String_Utility.TransferBytesSize(size)
	if size == nil then
		return string.format(showKB, 0);
	end
	local kiloBytes = size / 1024
	if kiloBytes >= 1024 then
		return String_Utility.TransferKiloBytesSize(kiloBytes)
	end
	return string.format(showKB, kiloBytes)
end

--判断该文本是否为ids
function String_Utility.CheckIsIds(str)
	local value = rawget(Const_IDS, str)
	return value ~= nil
end

function String_Utility.GetCountStr(count) --超过一万展示 xx万
	if UNIT_DESC == nil then
		UNIT_DESC = UIUtils.GetLocalizedTxt(Const_IDS.IDS_LocalNum_TenThousand)
	end
	if HUNDRED_MILLION_UNIT_DESC == nil then
		HUNDRED_MILLION_UNIT_DESC = UIUtils.GetLocalizedTxt(Const_IDS.IDS_LocalNum_HundredMillion)
	end

	local COUNT_UNIT = Localization.GetCountUnit()
	local HUNDRED_MILLION_COUNT_UNIT = Localization.GetHundredMillionCountUnit()
	if count < COUNT_UNIT then
		return count
	elseif count >= COUNT_UNIT and count < HUNDRED_MILLION_COUNT_UNIT then
		return private.GetCountUnitStr(count, COUNT_UNIT, UNIT_DESC)
	else
		return private.GetCountUnitStr(count, HUNDRED_MILLION_COUNT_UNIT, HUNDRED_MILLION_UNIT_DESC)
	end
end

function private.GetCountUnitStr(count, coutUnit, unitDesc)
	local reminder = count % coutUnit
	local intPart = (count - reminder) / coutUnit
	if reminder >= coutUnit / 10 then
		local decimalPart = reminder / (coutUnit / 10)
		--保留两位两位小数
		local _, decimal = math.modf(decimalPart)
		if decimal > 0 then
			decimalPart = decimalPart * 10
		end
		return intPart .. string.format(".%d", decimalPart) .. unitDesc
	elseif reminder >= coutUnit / 100 then
		local decimalPart = reminder / (coutUnit / 100)
		return intPart .. string.format(".0%d", decimalPart) .. unitDesc
	else
		return string.format("%d", count / coutUnit) .. unitDesc
	end
end

-- 邮件\提示 根据参数获得显示字符串
function String_Utility.GetShowStrByParamInfo(paramInfo)
	local resultStr = ""
	if not paramInfo then
		return resultStr
	end

	for _, v in ipairs (paramInfo.value) do
		if paramInfo.type == base_pb.ItemId then
			resultStr = resultStr .. UTL.Item.GetItemColorName(v.uint32Param)
		elseif paramInfo.type == base_pb.StrOrIds then
			if string.match(v.stringParam, "^IDS") and Const_IDS[v.stringParam] then
				resultStr = resultStr  .. UIUtils.GetLocalizedTxt(Const_IDS[v.stringParam])
			else
				local formatType, param = string.match(v.stringParam, "^<MailParam>(%d+)|(%w+)</MailParam>$", 1)
				if formatType and param then
					if formatType == MailParamFormatType.OfficialPositionTitle then
						resultStr = resultStr .. CTL.OfficialPosition.GetColorTitleFullTxt(tonumber(param))
					elseif formatType == MailParamFormatType.OfficialPositionGrade then
						resultStr = resultStr .. CTL.OfficialPosition.GetGradeDescByGradeID(tonumber(param))
					elseif formatType == MailParamFormatType.ThreeTeamFightLevel then
						resultStr = resultStr .. CTL.ThreeTeamFight.GetRankDesc(tonumber(param), false, true)
					elseif formatType == MailParamFormatType.TimeStamp2HourMinute then
						resultStr = resultStr .. os.date(UTL.Time.FormatDateEnum.HM, tonumber(param))
					end
				else
					resultStr = resultStr .. v.stringParam
				end
			end
		end
	end
	
	return resultStr
end

function String_Utility.CutZHStrByLength(str, length) --把中文当一个长度 去裁剪
	local last = #str + 1
	local prev = nil
	local sum = 0
	local len = 0
	for i in utf8.byte_indices(str) do
		if prev then
			local count = i - prev
			if count == 3 then	--汉字
				sum = sum + 2
			else
				sum = sum + 1
			end
			len = len + 1
		end
		if length and len >= length then
			return string.sub(str, 1, i-1)
		end
		prev = i
	end

	if prev then
		local count = last - prev
		if count == 3 then	--汉字
			sum = sum + 2
		else
			sum = sum + 1
		end
		len = len + 1
	end

	if length and len > length then
		return string.sub(str, 1, prev-1)
	end

	return str
end

function String_Utility.GetErrorCodeMsg(errorCode)
	local tipErrorMsg
	if Const_IDS["IDS_ERROR_NETWORK_AUTH_" .. errorCode] then
		tipErrorMsg = UIUtils.GetLocalizedTxt(Const_IDS["IDS_ERROR_NETWORK_AUTH_" .. errorCode]);
	else
		tipErrorMsg = string.gsub(UIUtils.GetLocalizedTxt(Const_IDS["IDS_ERROR_NETWORK_AUTH"]), "{0}", errorCode);
	end
	return tipErrorMsg or ""
end

--默认拼接方式，无空格
local function ConcatByDefault(param1, param2, param3, param4, param5)
	if param2 == nil then
		return param1
	elseif param3 == nil then
        return string.format("%s%s", param1, param2)
	elseif param4 == nil then
        return string.format("%s%s%s", param1, param2, param3)
	elseif param5 == nil then
        return string.format("%s%s%s%s", param1, param2, param3, param4)
	else
        return string.format("%s%s%s%s%s", param1, param2, param3, param4, param5)
	end
end

--参数之间加空格
local function ConcatWithSpace(param1, param2, param3, param4, param5)
	if param2 == nil then
		return param1
	elseif param3 == nil then
        return string.format("%s %s", param1, param2)
	elseif param4 == nil then
        return string.format("%s %s %s", param1, param2, param3)
	elseif param5 == nil then
        return string.format("%s %s %s %s", param1, param2, param3, param4)
	else
        return string.format("%s %s %s %s %s", param1, param2, param3, param4, param5)
	end
end

--字符0到9对应48到57，只需判断这个范围即知道是否为数字
function String_Utility.IsByteNumber(byte)
	return byte >= BYTE_ZERO_NUM and byte <= BYTE_NINE_NUM
end

-- id:int 
-- IDSCombine表ID
function String_Utility.FormatCombineTextByID(id)
	local data = DataSheetManager.IDSCombine:GetDataByID(id)
	if data == nil then
		logging.error(LTAG.ERROR, "IDSCombine表ID 不存在 :",id)
		return ""
	end
	
	-- 无参数，直接返回IDS
	if #data.replaceIDSs == 0 then
		return UIUtils.GetLocalizedTxt(Const_IDS[data.MainIDS])
	end
	
	-- 参数中可能包含IDS
	table.clearArray(combineIdsParams)
	for _, v in ipairs(data.replaceIDSs) do
		if string.find(v, IDS_PREFIX, 1, true) then
			table.insert(combineIdsParams, UIUtils.GetLocalizedTxt(Const_IDS[v]))
		else
			table.insert(combineIdsParams, v)
		end
	end
	return string.FormatByIdsId(Const_IDS[data.MainIDS], table.unpack(combineIdsParams))
end

--英文参数拼接加上空格，其他语言暂时不需要
function private.InitStringUtil()
	if Localization.IsEnglish() or Localization.IsIndonesian() or Localization.IsVietnamese() or Localization.IsThailand() then
		string.Concat = ConcatWithSpace
	else
		string.Concat = ConcatByDefault
	end
end

-- 折扣字符串
-- discountVal = 80, CN:8折, 其他:20%off
local PercentStr = "%d%%"
function String_Utility.GetDiscountStrByIdsId(discountVal, idsId)
	--默认的ids
	local idsId = idsId or Const_IDS.IDS_Store_SaleOff
	if discountVal == 0 then
		return UIUtils.GetLocalizedTxt(Const_IDS.IDS_Store_Free)
	end
	local num = String_Utility.GetDiscountNum(discountVal)
	if Localization.IsAllChinese() then
		return string.FormatByIdsId(idsId, num)
	else
		return string.FormatByIdsId(idsId, string.format(PercentStr, num))
	end
end

-- 默认是中文折扣
-- discountVal = 80, CN:8折, 其他:20%off
function String_Utility.GetDiscountNum(discountVal)
	if Localization.IsAllChinese() then
		return discountVal / 10
	else
		return 100 - discountVal
	end
end

function String_Utility.GetDiscountedValue(discountVal, num)
	return num * discountVal / 100
end

-- | Unicode符号范围 | UTF-8编码方式 n | (十六进制) | (二进制) ---+-----------------------+------------------------------------------------------ 
-- 1 | 0000 0000 - 0000 007F | 0xxxxxxx 
-- 2 | 0000 0080 - 0000 07FF | 110xxxxx 10xxxxxx 
-- 3 | 0000 0800 - 0000 FFFF | 1110xxxx 10xxxxxx 10xxxxxx 
-- 4 | 0001 0000 - 0010 FFFF | 11110xxx 10xxxxxx 10xxxxxx 10xxxxxx 
-- 5 | 0020 0000 - 03FF FFFF | 111110xx 10xxxxxx 10xxxxxx 10xxxxxx 10xxxxxx 
-- 6 | 0400 0000 - 7FFF FFFF | 1111110x 10xxxxxx 10xxxxxx 10xxxxxx 10xxxxxx 10xxxxxx 表 1. UTF-8的编码规则 

-- 以下, 还是以汉字"严"为例, 演示怎样实现UTF-8编码.

-- 已知"严"的unicode是4E25(1001110 00100101), 依据上表, 能够发现4E25处在第三行的

-- 范围内(0000 0800 - 0000 FFFF), 因此"严"的UTF-8编码须要三个字节, 即格式是

-- "1110xxxx 10xxxxxx 10xxxxxx". 然后, 从"严"的最后一个二进制位開始, 依次从后向前

-- 填入格式中的x, 多出的位补0. 这样就得到了, "严"的UTF-8编码是 "11100100 10111000

-- Arabic (0600–06FF, 256 characters)
-- Arabic 占两个字符长度 所以 0x0060 二进制 110 0000 0000  以上述2的方式补全 11011000 = 216 1000 0000 = 128
-- 06ff 二进制110 1111 1111 以上述2的方式补全 11011011 = 219  1011 1111 = 191
--综上所述 阿拉伯语第一个字符的int值在lua上的范围是 216 - 219  第二个是 129 - 191
function String_Utility.ArabicFix(str)
	if private.OpenCheckArabic() then
		local prev = 0
		local isArabicStr = false
		for i=1,#str do
			local byteValue = string.byte(str, i)
			if (byteValue >=128 and byteValue <= 191) and (prev >= 216 and prev <= 219) then
				isArabicStr = true
				break
			end
			prev = byteValue
		end
		if isArabicStr then
			local fixStr = CSExt.CSFunc_ArabicFix(str) or str
			return  true, fixStr
		end
	end
	return false, str
end

function private.OpenCheckArabic()
	--阿拉伯语言国家在非洲与亚洲的连接处 时区从0 - 4
	if not UNITY_EDITOR then
		local localTimeZone = UTL.Time.GetLocalTimeZone()
		return localTimeZone >= 0 and localTimeZone <= 4
	else
		return false
	end
end

function String_Utility.SetCountryName(label, country)
	UIUtils.SetLabelText(label, Const_IDS[IDS_COUNTRY_NAME[country]])
end

function String_Utility.GetCountryName(country)
	return UIUtils.GetLocalizedTxt(Const_IDS[IDS_COUNTRY_NAME[country]])
end

function String_Utility.GetColorCountryName(country)
	return UTL.Color.GetColorfulText(COLOR_COUNTRY_NAME[country], IDS_COUNTRY_NAME[country])
end

--解析deeplink url，返回活动类型key和参数param
function String_Utility.CheckDeeplink(url)
	if not url then
		return nil
	end
	local splits = string.split(url, "?")
	local key = splits[1]
	local param
	if #splits == 2 then
		param = tonumber(splits[2])
	end
	return key, param
end

--x月x日
function String_Utility.FormatMonthDay(month, day)
	local monthStr = string.FormatByIdsId(Const_IDS["IDS_MonthCommon"], month)
	local dayStr = string.FormatByIdsId(Const_IDS["IDS_DayCommon"], day)
	if Localization.IsAllChinese() or Localization.IsJapanese() then
		return monthStr .. dayStr
	elseif GameAppInfo.IsVietnamPackage() then
		return day .. "/" .. month
	else
		return monthStr .. "/" .. dayStr
	end
end

local smallIconPathTable = {}

function String_Utility.GetSmallIconPath(iconPath)
	local path = smallIconPathTable[iconPath]
	if path == nil then
		path = string.gsub(iconPath, "(.*)(/)", ConstAssetPathConfig.Path1)
		smallIconPathTable[iconPath] = path
	end
	return path
end

--判断该acid是否为机器人
function String_Utility.IsRobotByAcid(acid)
	if string.match(acid, ".(-Robot)$") then
		return true
	end
	return false
end

--float数字保留小数点后有效数字
--0 正常的四舍五入，1，向下取，2向上取
--validNum 保留几位
function String_Utility.GetPercentFormatFloat(floatNum, customType, validNum)
	local tempNum = 1
	for i=1, validNum do
		tempNum = tempNum*10
	end
	floatNum = floatNum*tempNum
	if customType == 0 then
		floatNum = math.floor(floatNum+0.5)/tempNum
	elseif customType == 1 then
		floatNum = math.floor(floatNum)/tempNum
	elseif customType == 2 then
		floatNum = math.ceil(floatNum)/tempNum
	end
	return string.format("%." .. validNum .. "f%%", floatNum)
end

return String_Utility