require("preload.PluginPatcher")

--[[
	更新流程
	1、获取服务器信息
	2、更新资源
		4.1 如果无需更新，则跳过此步骤
		4.2 下载差分包并解压	
	3、如果是android,先检查APK更新。
		2.1 如果无需更新，则跳过此步骤
		2.2 下载差分包
		2.3 合并新的APK
		2.4 安装新的APK
	4、检查强更版本号。
		3.1 如果无需更新，则跳过此步骤
		3.2 如果需要更新，则弹出更新提示
	5、检查文件完整性
	6、完成更新
		6.1 如果本次没有更新资源，则完成更新
		6.2 如果本次有更新内容，则提示玩家重启游戏。否则直接进入游戏	
--]]

local AutoUpdater = {};
AutoUpdater.__index = AutoUpdater;

local writablePath = cc.FileUtils:getInstance():getWritablePath()
local updateConfirmSize = 5 * 1024 * 1024
local tempDir = os.date("%Y%m%d%H%M", os.time());
local tempFile="tempFile.zip"

local zipFileDir = writablePath .. tempDir .. '/'
local zipFilePath = zipFileDir  .. tempFile;

-- 创建新对象
function AutoUpdater:new(...)
	local instance = {};
	setmetatable(instance , AutoUpdater);
	instance:ctor(...);
	return instance;
end

function AutoUpdater:ctor(romSetting, mainScene, onFinsishCallback)

	-- 保存全局配置
	self.romSetting = romSetting
	self.onFinsishCallback = onFinsishCallback

	self.Packages={}

	self.OldFiles={}
	self.NewFiles={}

	-- 渲染视图
	self.View = require("preload.AutoUpdate.AutoUpdaterView"):new(self, mainScene)

	-- 是否提示过APK更新
	self.isShowApkPatch = false;

	--是否清理过文件
	self.IsCleanFile = false
	
	--是否更新过程出现问题
	self.IsError=false
	
	-- 是否更新了资源
	self.isUpdateRes = false;	
	
	-- 标记本次更新是否已经成功获取到配置信息了
	self.isGetServerConfigSuccessed = false
end

function AutoUpdater:doNext()
	logD("AutoUpdater:doNext()");
	if #self.execQueue > 0 then
		local execFunc = self.execQueue[1]
		table.remove(self.execQueue, 1)
		if execFunc then
			execFunc()
		end
	else
		self:onUpdateFinished()
	end
end

function AutoUpdater:startUpdate()
	logD("AutoUpdater:startUpdate()");
	
	self.execQueue = {}
	table.insert(self.execQueue, handler(self, self.getServerConfigs))
	table.insert(self.execQueue, handler(self, self.updateRes))
	table.insert(self.execQueue, handler(self, self.updateApk))
	table.insert(self.execQueue, handler(self, self.updateForce ))
	table.insert(self.execQueue, handler(self, self.checkFilesExist))
	
	self:doNext()
end

function AutoUpdater:getServerConfigs()
	logD("AutoUpdater:getServerConfigs()");
	
	self.isGetServerConfigSuccessed = false
	local function onEndGetServerConfig(isSuccessed)
		logD("AutoUpdater:onEndGetServerConfig(), isSuccessed = ", tostring(isSuccessed));
		if isSuccessed then
			if not self.isGetServerConfigSuccessed then
				self.isGetServerConfigSuccessed = true
				self:doNext()
			else
				logD("AutoUpdater:getServerConfigs(), 重复收到服务器的配置数据，本次不处理");
			end
		else
			self:dispatchEvent("error", "初始化失败，请更换网络后重试")
		end
	end	
		
	if isIOSPlatform() then
		checkNetWorkPermission(function()
			getServerConfigs(onEndGetServerConfig, true)
		end)
	else
		getServerConfigs(onEndGetServerConfig, true)
	end
end

-- 更新资源
function AutoUpdater:updateRes()
	logD("AutoUpdater:updateStart() 检查资源更新")
	if PhpSetting.update.url=="" or PhpSetting.update.md5=="" then
		local ver = loadVersion()
		if tonumber(ver) ~= tonumber(PhpSetting.update.ver) and not self.IsCleanFile then
			logD("AutoUpdater:updateStart() 找不到版本,开始清理数据")
			self:ClearDatingCache()
			
			self:startUpdate()
			self.IsCleanFile = true
		else
			logD("AutoUpdater:updateStart() 版本一致，无需更新")
			self:doNext()
		end
		return
	end
	
	-- 有文件需要更新
	logD("AutoUpdater:updateStart() 有文件需要更新")
	self.isUpdateRes = true;

	self.DownloadedFileSize=tonumber(PhpSetting.update.size)
		
	local function onFinishDownZip()
		logD("AutoUpdater:onFinishDownZip(), 下载差分包完成");
		local md5=cc.FileUtils:getInstance():md5File(zipFilePath)
		if md5~=PhpSetting.update.md5 then
			logD("AutoUpdater:onFinishDownZip(), 校验差分包失败, update.md5 = " .. PhpSetting.update.md5 );
			logD("AutoUpdater:onFinishDownZip(), 校验差分包失败, md5 = " .. md5 );
			os.remove(zipFilePath)
			self:dispatchEvent("error",PLN.FILE_CHECKSUM_FAILED)
			return
		end

		self:dispatchEvent("zip",{text=PLN.UPDATING_RES,percent=1})

		runDelayWithTime(function()
			local isZipSuccessed=cc.FileUtils:getInstance():decompress(zipFilePath)
			os.remove(zipFilePath)
			
			logD("AutoUpdater:onFinishDownZip(), 解压差分包完成" );
			
			if isZipSuccessed then
				local move_result = move_dir(zipFileDir, writablePath);
				if move_result then
					logD("AutoUpdater:onFinishDownZip() need restart");
					local function OnClickOk()
						cc.Application:getInstance():restart()
					end
					local tipsMessage = "更新完成，点击确认重启游戏"
					showTipsView(tipsMessage, OnClickOk, nil)
				else
					self:dispatchEvent("error",PLN.FILE_MOVE_FAILED)
				end			
			else
				self:dispatchEvent("error",PLN.FILE_UNCOMPRESS_FAILED)
			end
			
			remove_dir(zipFileDir)
		end,0.01)
	end

	local function onState( state, msg )
		logD("AutoUpdater:updateRes() onState() :", state, msg)
		if state=="progress" then
			local percent = msg--self.DownloadedFileSize*msg / self.DownloadedFileSize;
			self:dispatchEvent("downloadFile" , {text = string.format(PLN.DOWNLOADING_FILE , self.DownloadedFileSize*percent / 1024 / 1024 , self.DownloadedFileSize / 1024 / 1024 , percent * 100) , percent = percent});
		elseif state=="successed" then
			local percent = 1
			self:dispatchEvent("downloadFile" , {text = string.format(PLN.DOWNLOADING_FILE , self.DownloadedFileSize*percent / 1024 / 1024 , self.DownloadedFileSize / 1024 / 1024 , percent * 100) , percent = percent});

			runDelayWithTime(function()
				onFinishDownZip()
			end,0.01)
		else
			self:dispatchEvent("error",PLN.DOWNLOAD_FILE_FAILED)
		end
	end
	
	if not cc.FileUtils:getInstance():isDirectoryExist(zipFileDir) then
		if not cc.FileUtils:getInstance():createDirectory(zipFileDir) then
			logD("AutoUpdater:updateStart() createDirectory failed :" .. zipFileDir)
		end
	end

	downloadFileByUrls2(PhpSetting.update.url, onState, zipFilePath)	
end

-- 更新APK
function AutoUpdater:updateApk()
	
	if self.isShowApkPatch then
		self:doNext()
		return
	end
	self.isShowApkPatch = true;
	
	logD("AutoUpdater:updateApk()")
	if isAndroidPlatform() and PhpSetting.apkupdate and PhpSetting.apkupdate.url ~= nil and PhpSetting.apkupdate.url ~= "" then

		local function installNewApk(apk_file) 
			logD("AutoUpdater:installNewApk() apk_file = ", apk_file)
			patcherInstallApk(apk_file);
		end

		local function mergePatchToApk(patchFilePath)
			logD("AutoUpdater:mergePatchToApk() patchFilePath = ", patchFilePath)

			self:dispatchEvent("info","正在生成新的安装包")

			local patch_file = patchFilePath;
			local patch_md5 = PhpSetting.apkupdate.md5;
			local apk_file = writablePath .. PhpSetting.apkupdate.ver .. ".apk";
			local apk_md5 = PhpSetting.apkupdate.apkmd5

			local result = patcherMakeApk(patch_file, patch_md5, apk_file, apk_md5);
			logD("AutoUpdater:mergePatchToApk() result = ", result)
			
			if result then
				installNewApk(apk_file);
			else
				self:doNext()
			end
		end
		
		local function downloadPatch ()
			local totalSize = tonumber(PhpSetting.apkupdate.size)
			local currentSize = 0;
			self:dispatchProgress(currentSize, totalSize);
			
			local patchFilePath = writablePath .. PhpSetting.apkupdate.ver .. ".patch";
			logD("AutoUpdater:downloadPatch() patchFilePath = ", patchFilePath)
			
			local function onState( state, msg )
				logD("AutoUpdater:downloadPatch() onState() :", state, msg)
				if state=="progress" then
					local percent = msg
					currentSize = totalSize * percent;
					self:dispatchProgress(currentSize, totalSize);
				elseif state=="successed" then
					local percent = 1
					currentSize = totalSize
					self:dispatchProgress(currentSize, totalSize);

					runDelayWithTime(function()
						mergePatchToApk(patchFilePath)
					end,0.01)	
				else
					self:dispatchEvent("error",PLN.DOWNLOAD_FILE_FAILED)
					-- 如果下载失败就直接进入下一步，检测强制更新
					self:checkUpdate();
				end
			end

			logD("AutoUpdater:downloadPatch() url = ", PhpSetting.apkupdate.url)
			downloadFileByUrls2(PhpSetting.apkupdate.url, onState, patchFilePath)				
		end
		
		local function onClickOk()
			downloadPatch();
		end
		
		local function onClickCancel()
			self:doNext()
		end
		
		-- 提示信息
		local content = PhpSetting.apkupdate.content;
		if content == nil or content == "" then
			content = "发现有新的安装包可以使用，是否下载新的安装包？"
		end 		
		
		-- 是否可以取消更新
		if PhpSetting.apkupdate.update_type == 2 then
			onClickCancel = nil
		end
		
		-- 点击确定后是否关闭界面
		local closeWhenOk = true;
		
		require("preload.AutoUpdate.UpdateTipsView"):new(content, onClickOk, onClickCancel, closeWhenOk)
		return		
	else
		self:doNext()
	end
end

-- 检查强更版本
function AutoUpdater:updateForce()
	if PhpSetting and PhpSetting.force then
		-- 检查强制更新
		if tonumber(PhpSetting.force.isForce) > 0 then
			local title = "发现新版本"
			local content = PhpSetting.force.tips or ""
			local url = PhpSetting.force.url
			if not url or url == "" then
				url = self.romSetting.downloadUrl
			end
			if not url or url == "" then
				url = "https://www.baidu.com"
			end
			local function onClick(ret)
				logD("AutoUpdater:updateForce() onClick, url = ", tostring(url))
				if PluginDevice then
					PluginDevice:callVoid("openUrl", url)
				else
					logD("AutoUpdater:updateForce() PluginDevice is nil")
				end		
			end
			require("preload.AutoUpdate.UpdateTipsView"):new(content, onClick )
			return
		end
		-- 检查提示更新
		if tonumber(PhpSetting.force.isTips) > 0 then
			local title = "发现新版本"
			local content = PhpSetting.force.tips or ""
			local url = PhpSetting.force.url
			if not url or url == "" then
				url = self.romSetting.downloadUrl
			end
			if not url or url == "" then
				url = "https://www.baidu.com"
			end
			local function onClickOk(ret)
				logD("AutoUpdater:updateForce() onClickOk, url = ", tostring(url))
				if PluginDevice then
					PluginDevice:callVoid("openUrl", url)
				else
					logD("AutoUpdater:updateForce() PluginDevice is nil")
				end
			end
			local function onClickCancel(ret)
				logD("AutoUpdater:updateForce() onClickCancel")
				self:doNext()
			end

			require("preload.AutoUpdate.UpdateTipsView"):new(content,onClickOk, onClickCancel)
			return
		end
	end

	self:doNext()
end

-- 检查文件是否完整
function AutoUpdater:checkFilesExist()
	local files_list_file = self.romSetting.Platform .. "/files.txt"
	local ret, missing_files_list = checkFilesExist(files_list_file)
	if ret then
		logD("AutoUpdater:checkFilesExist(), 校验完成，未发现文件缺失");
		self:doNext();
	else
		logD("AutoUpdater:checkFilesExist(), 校验完成，发现有文件丢失");
		local function OnClickOk()
			self:ClearDatingCache()
			cc.Application:getInstance():restart()		
		end
		local tipsMessage = "发现有文件丢失，点击确定开始修复"
		showTipsView(tipsMessage, OnClickOk, nil)
	end
end

-- 更新完成
function AutoUpdater:onUpdateFinished()
	logD("AutoUpdater:onUpdateFinished()");
	self:dispatchEvent("finish", "更新完成!")
	
	if self.isUpdateRes then
		logD("AutoUpdater:onUpdateFinished() need restart");
		local function OnClickOk()
			cc.Application:getInstance():restart()
		end
		local tipsMessage = "更新完成，点击确认重启游戏"
		showTipsView(tipsMessage, OnClickOk, nil)
	else
		logD("AutoUpdater:onUpdateFinished() not need restart");
		if self.onFinsishCallback then
			self.onFinsishCallback()
		end
		self.View:onExit();
	end
end

-- 通知界面显示当前进度
function AutoUpdater:dispatchProgress(currentSize, totalSize)
	local percent = currentSize / totalSize
	self:dispatchEvent("downloadFile" , {text = string.format(PLN.DOWNLOADING_FILE , currentSize / 1024 / 1024 , totalSize / 1024 / 1024 , percent * 100) , percent = percent});
end

-- 派发一个更新事件给外部侦听者
function AutoUpdater:dispatchEvent(eventName , eventValue)
	logD("AutoUpdater:dispatchEvent()" , eventName , eventValue);
	
	--[[
	if eventName == "error" then
		self.IsError=true
		uploadErrorLogs("AutoUpdaterError");
	end
	--]]
	
	self.View:showProgress(eventName , eventValue);
	
	if eventName == "error" then
		local function OnClickOk()
			cc.Application:getInstance():restart()
		end
		-- 上报更新错误
		uploadLogs(GAME_ERROR_TYPE.UPDATEFAILED)
		-- 提示更新失败
		local tipsMessage = "出错了，点击确定重新开始更新"
		showTipsView(tipsMessage, OnClickOk, nil)
	end	
end

-- 清理大厅的缓存文件
function AutoUpdater:ClearDatingCache()
	logD("AutoUpdater:ClearDatingCache() 清理大厅的缓存文件")
	
	local corePath = writablePath.."core/"
	local datingRomFiles = writablePath..self.romSetting.Platform.."/romFiles/"
	local datingPreload  = writablePath..self.romSetting.Platform.."/preload/"
	local datingScript   = writablePath..self.romSetting.Platform.."/luaScript/"	
	local datingRes      = writablePath..self.romSetting.Platform.."/res/"
	
	cc.FileUtils:getInstance():removeDirectory(corePath)
	cc.FileUtils:getInstance():removeDirectory(datingRomFiles)
	cc.FileUtils:getInstance():removeDirectory(datingPreload)
	cc.FileUtils:getInstance():removeDirectory(datingScript)	
	cc.FileUtils:getInstance():removeDirectory(datingRes)
	
	local filesListPath  = writablePath..self.romSetting.Platform.."/files.txt"
	os.remove(filesListPath)

	cc.FileUtils:getInstance():purgeCachedEntries()
	
	--logD("删除UserConfig.xml")
	--os.remove(writablePath .. "UserConfig.xml")
end


return AutoUpdater;