#include "WindowAppTaskMonitorView.h"

#include <QHeaderView>
#include "vpControls/VCustomPlot.h"
#include "TaskManager.h"


#define TABLE_MONITOR_INDEX_INDEX			0
#define TABLE_MONITOR_INDEX_NAME			1
#define TABLE_MONITOR_INDEX_MODE			2
#define TABLE_MONITOR_INDEX_STATUS			3
#define TABLE_MONITOR_INDEX_EXECTIME		4
#define TABLE_MONITOR_INDEX_EXECCOUNT		5
#define TABLE_MONITOR_INDEX_ERRORCOUNT		6
#define TABLE_MONITOR_COLUMN_COUNT			7

#define CPU_NAME								"CPU"
#define	MEMORY_NANE								"Memory"

#define SYS_TIME_NAME							"Time 1S"

#ifdef Q_OS_WIN
#include "windows.h"
#endif  
#define MB (1024 * 1024)
#define KB (1024)

WindowAppTaskMonitorView::WindowAppTaskMonitorView(const QString& strTitle, QWidget* parent)
	: QWidget(parent)
	, m_pMonitorTable(nullptr)
	, m_strTitle(strTitle)
{
	ui.setupUi(this);


	totalNew = idleNew = totalOld = idleOld = 0;

	cpuPercent = 0;
	memoryPercent = 0;
	memoryAll = 0;
	memoryUse = 0;

	m_nCustomPlotKey = 0;
	m_nCustomPlotSysTemKey = 0;

	//执行命令获取
	process = new QProcess(this);
	connect(process, SIGNAL(readyRead()), this, SLOT(slotReadData()));


	// 初始化监控表格
	this->initMonitorTable();

	// 初始化曲线
	this->initMonitorCustomPlot();

	// UI元素初始化
	this->initUI();	

}

WindowAppTaskMonitorView::~WindowAppTaskMonitorView()
{
}


/// <summary>
/// UI元素初始化
/// </summary>
void WindowAppTaskMonitorView::initUI()
{

	ui.comboBox->addItem(SYS_TIME_NAME);
	ui.splitter->setStretchFactor(0, 10);
	ui.splitter->setStretchFactor(1, 2);


	// 初始化系统定时器
	m_eventTimer.setInterval(1000);
	

	connect(&m_eventTimer, SIGNAL(timeout()), this, SLOT(onCustomPlotTimer()));

	connect(ui.splitter, SIGNAL(splitterMoved(int, int)), this, SLOT(slotSplitterMoved(int, int)));


	m_eventTimer.start();
}


/// <summary>
/// 初始化监控表格
/// </summary>
void WindowAppTaskMonitorView::initMonitorTable()
{
	// 创建变量表格
	m_pMonitorTable = new QTableWidget(ui.tabMonitor);
	 
	// 列数
	m_pMonitorTable->setColumnCount(TABLE_MONITOR_COLUMN_COUNT);

	// 设置表头文字
	QStringList headers;
	headers
		<< ("Index")
		<< ("Name")
		<< ("Mode")
		<< ("Status")
		<< ("Run Time(ms)")
		<< ("Run Count")
		<< ("Error Count");

	m_pMonitorTable->setHorizontalHeaderLabels(headers);

	//设置表头字体
	QFont font = m_pMonitorTable->horizontalHeader()->font();
	font.setBold(true);
	m_pMonitorTable->horizontalHeader()->setFont(font);
	// 设置文字左对齐
	m_pMonitorTable->horizontalHeader()->setDefaultAlignment(Qt::AlignCenter);
	// 设置为不可编辑
	m_pMonitorTable->setEditTriggers(QAbstractItemView::NoEditTriggers);
	// 设置为整行选中模式
	m_pMonitorTable->setSelectionBehavior(QAbstractItemView::SelectRows);
	m_pMonitorTable->setSelectionMode(QAbstractItemView::SingleSelection);
	// 设置最左侧的序号不用显示
	m_pMonitorTable->verticalHeader()->setVisible(false);
	//设置行高
	m_pMonitorTable->verticalHeader()->setDefaultSectionSize(10);
	//点击表时不对表头行光亮（获取焦点）
	m_pMonitorTable->horizontalHeader()->setHighlightSections(false);
}


void WindowAppTaskMonitorView::initMonitorCustomPlot()
{
	const QPoint newPt(0, 0);
	const QSize newSize(0, 0);

	m_pCustomPlotTask = new VCustomPlot(nullptr, newPt, newSize);
	QHBoxLayout* Tasklayout = new QHBoxLayout();
	Tasklayout->setContentsMargins(0, 0, 0, 0);
	Tasklayout->setSpacing(0);
	Tasklayout->addWidget(m_pCustomPlotTask);
	ui.curveMonitor->setLayout(Tasklayout);

	m_pCustomPlotTask->setBgColor(qRgb(70, 70, 70));

	//隐藏表格线
	m_pCustomPlotTask->getPlot()->xAxis->grid()->setVisible(false);
	//m_pCustomPlotTask->getPlot()->yAxis->grid()->setVisible(false);

	   //初始化跟随鼠标游标
	m_pCustomPlotTask->initTracer();

	//初始化指示器数据高亮及悬停提示等
	m_pCustomPlotTask->initItem();

	m_pCustomPlotTask->initUI("", "Task Exec Time (ms)");

	// 设置为可缩放可拖动模式
	m_pCustomPlotTask->setInteractions(3);

	m_pCustomPlotTask->setRangeX(0, 200, 200);
	m_pCustomPlotTask->setRangeY(0, 1000, 5);

	//////////////////////////////////////////////////////////////////////////
	m_pCustomPlotSystem = new VCustomPlot(nullptr, newPt, newSize);
	QHBoxLayout* layoutSystem = new QHBoxLayout();
	layoutSystem->setContentsMargins(0, 0, 0, 0);
	layoutSystem->setSpacing(0);
	layoutSystem->addWidget(m_pCustomPlotSystem);
	ui.curveSystem->setLayout(layoutSystem);


	m_pCustomPlotSystem->setBgColor(qRgb(70, 70, 70));

	//隐藏表格线
	m_pCustomPlotSystem->getPlot()->xAxis->grid()->setVisible(false);
	//m_pCustomPlotTask->getPlot()->yAxis->grid()->setVisible(false);

	   //初始化跟随鼠标游标
	m_pCustomPlotSystem->initTracer();

	//初始化指示器数据高亮及悬停提示等
	m_pCustomPlotSystem->initItem();


	m_pCustomPlotSystem->addGraph(CPU_NAME, qRgb(31, 128, 186), 1, true);
	m_pCustomPlotSystem->addGraph(MEMORY_NANE, qRgb(32, 184, 141), 1, true);


	m_pCustomPlotSystem->initUI("", "System (%)");

	//设置拖动缩放模式
	m_pCustomPlotSystem->setInteractions(0);

	m_pCustomPlotSystem->setRangeX(0, 200, 200);
	m_pCustomPlotSystem->setRangeY(0, 100, 5);
}

/// <summary>
/// 调整大小的消息中改变表格栏的宽度
/// </summary>
/// <param name="event"></param>
void WindowAppTaskMonitorView::resizeEvent(QResizeEvent* event)
{
	Q_UNUSED(event);

	// qDebug() << "WindowAppVariableTable::resizeEvent";
	int nTotalSize = m_pMonitorTable->size().width();

	m_pMonitorTable->setColumnWidth(TABLE_MONITOR_INDEX_INDEX, nTotalSize * 0.05);
	m_pMonitorTable->setColumnWidth(TABLE_MONITOR_INDEX_NAME, nTotalSize * 0.2);
	m_pMonitorTable->setColumnWidth(TABLE_MONITOR_INDEX_MODE, nTotalSize * 0.2);
	m_pMonitorTable->setColumnWidth(TABLE_MONITOR_INDEX_STATUS, nTotalSize * 0.1);
	m_pMonitorTable->setColumnWidth(TABLE_MONITOR_INDEX_EXECTIME, nTotalSize * 0.15);
	m_pMonitorTable->setColumnWidth(TABLE_MONITOR_INDEX_EXECCOUNT, nTotalSize * 0.15);
	m_pMonitorTable->setColumnWidth(TABLE_MONITOR_INDEX_ERRORCOUNT, nTotalSize * 0.15);


	m_pMonitorTable->resize(ui.tabMonitor->size());
}


/// <summary>
/// 
/// </summary>
/// <param name="pos"></param>
/// <param name="index"></param>
void WindowAppTaskMonitorView::slotSplitterMoved(int pos, int index)
{
	Q_UNUSED(pos);
	Q_UNUSED(index);

	QList<int> list = ui.splitter->sizes();

	if (m_pCustomPlotTask)
	{
		m_pCustomPlotTask->resize(ui.curveMonitor->size());
	}
	if (m_pCustomPlotSystem)
	{
		m_pCustomPlotSystem->resize(ui.curveMonitor->size());
	}
	m_pMonitorTable->resize(ui.tabMonitor->size());

}


/// <summary>
/// 定时器Even事件
/// </summary>
void WindowAppTaskMonitorView::onCustomPlotTimer()
{
	QString strName = ui.comboBox->currentText();
	if (strName == SYS_TIME_NAME)
	{		
		//m_nCustomPlotKey++;

		// 刷新显示
		if (!m_pCustomPlotTask->isHidden() )
		{
			m_pCustomPlotTask->replot();
		}
		
	}
	// 只有在资源监视窗口打开的情况下，才刷新资源的曲线图
	if (!m_pCustomPlotSystem->isHidden())
	{
		getCPU();
		getMemory();

		cpuPercent = (cpuPercent < 0 ? 0 : cpuPercent);
		cpuPercent = (cpuPercent > 100 ? 0 : cpuPercent);

		if (m_pCustomPlotSystem)
		{
			m_pCustomPlotSystem->addValve(MEMORY_NANE, (double)m_nCustomPlotSysTemKey, (double)memoryPercent);
			if (cpuPercent < 100)
			{
				m_pCustomPlotSystem->addValve(CPU_NAME, (double)m_nCustomPlotSysTemKey, (double)cpuPercent);
			}
			
			m_nCustomPlotSysTemKey++;

			if (!m_pCustomPlotSystem->isHidden())
			{
				m_pCustomPlotSystem->replot();
			}
		}
	}

}

/// <summary>
/// 添加一行新的Task信息
/// </summary>
/// <param name="pTask"></param>
void WindowAppTaskMonitorView::addNewTask(const TASK* pTask)
{
	int nCount = m_pMonitorTable->rowCount();

	 this->m_pMonitorTable->setRowCount(nCount + 1);

	// 填充Task表格，并且保存每一个需要更新的数据表格
	QVector<QTableWidgetItem*>	pNewItems;

	QTableWidgetItem* newItem = new QTableWidgetItem(QString::number(nCount + 1));
	m_pMonitorTable->setItem(nCount, TABLE_MONITOR_INDEX_INDEX, newItem);
	pNewItems.push_back(newItem);

	newItem = new QTableWidgetItem(pTask->strName);
	m_pMonitorTable->setItem(nCount, TABLE_MONITOR_INDEX_NAME, newItem);
	pNewItems.push_back(newItem);

	newItem = new QTableWidgetItem(pTask->strModeName);
	m_pMonitorTable->setItem(nCount, TABLE_MONITOR_INDEX_MODE, newItem);
	pNewItems.push_back(newItem);

	newItem = new QTableWidgetItem(emExecStatus.key((short)pTask->execParams.nStatus));
	m_pMonitorTable->setItem(nCount, TABLE_MONITOR_INDEX_STATUS, newItem);
	pNewItems.push_back(newItem);

	newItem = new QTableWidgetItem(QString::number(pTask->execParams.nExecTime));
	m_pMonitorTable->setItem(nCount, TABLE_MONITOR_INDEX_EXECTIME, newItem);
	pNewItems.push_back(newItem);

	newItem = new QTableWidgetItem(QString::number(pTask->execParams.nExecCount));
	m_pMonitorTable->setItem(nCount, TABLE_MONITOR_INDEX_EXECCOUNT, newItem);
	pNewItems.push_back(newItem);

	newItem = new QTableWidgetItem(QString::number(pTask->execParams.nErrorCount));
	m_pMonitorTable->setItem(nCount, TABLE_MONITOR_INDEX_ERRORCOUNT, newItem);
	pNewItems.push_back(newItem);

	for (int i = 0; i < TABLE_MONITOR_COLUMN_COUNT; i++)
	{
		m_pMonitorTable->item(nCount, i)->setTextAlignment(Qt::AlignHCenter | Qt::AlignVCenter);
	}

	// 保存Task的名字和每一个表格单元的指针
	m_TaskTableWidgetItems.insert(pTask->strName, pNewItems);

	// 将Task 的名字存如下拉控件中
	ui.comboBox->addItem(pTask->strName);

	QVector<QColor> m_defaultColors;
	m_defaultColors 
		<< QColor(0, 176, 180)
		<< QColor(255, 192, 0)
		<< QColor(0, 113, 193)
		<< QColor(72, 103, 149)
		<< QColor(185, 87, 86)
		<< QColor(0, 177, 125)
		<< QColor(214, 77, 84)
		<< QColor(71, 164, 233)
		<< QColor(34, 163, 169)
		<< QColor(40, 45, 48)
		<< QColor(162, 121, 197)
		<< QColor(72, 202, 245)
		<< QColor(0, 150, 121)
		<< QColor(111, 9, 176)
		<< QColor(250, 170, 20);

	// 防止取颜色超出预设表
	if (nCount > m_defaultColors.size())
	{
		nCount = 0;
	}

	// 创建曲线
	m_pCustomPlotTask->addGraph(pTask->strName, m_defaultColors.at(nCount));

}


/// <summary>
/// 删除一个Task信息
/// </summary>
/// <param name="strTaskName"></param>
void WindowAppTaskMonitorView::delTask(const QString& strTaskName)
{
	int nRow = m_allTaskNames.indexOf(strTaskName);

	m_pMonitorTable->removeRow(nRow);

	m_pCustomPlotTask->delGraph(strTaskName);
}


/// <summary>
/// 更新Task信息
/// </summary>
/// <param name="pTask"></param>
void WindowAppTaskMonitorView::updateTask(const TASK* pTask)
{
	const QVector<QTableWidgetItem*>& pTaskItems = m_TaskTableWidgetItems.value(pTask->strName);	
	const TASK_PARAMS& params = pTask->execParams;

	// 根据Task的执行状态更新这个表格对应的数据
	
	pTaskItems[TABLE_MONITOR_INDEX_STATUS]->setText(emExecStatus.key((short)pTask->execParams.nStatus));
	pTaskItems[TABLE_MONITOR_INDEX_EXECTIME]->setText( QString::number(params.nExecTime) + " (" + QString::number(1000.0 / (params.nExecTime+ 0.0001), 'f', 1) + "fps)");
	pTaskItems[TABLE_MONITOR_INDEX_EXECCOUNT]->setText(QString::number(params.nExecCount));
	pTaskItems[TABLE_MONITOR_INDEX_ERRORCOUNT]->setText("Error( " + QString::number(params.nErrorCount) +")  TimtOut("+ QString::number(params.nTriggerFailedCount) + ")");
	
	// this->m_pMonitorTable->viewport()->update(); 

	m_pCustomPlotTask->addValve(pTask->strName, (double)m_nCustomPlotKey, (double)params.nExecTime);

	m_nCustomPlotKey++;

	// 当选择了该Task 后，该Task 执行曲线刷新动作
	QString strName = ui.comboBox->currentText();
	if (strName == pTask->strName)
	{
		if (!m_pCustomPlotTask->isHidden())
		{
			m_pCustomPlotTask->replot(QCustomPlot::rpQueuedReplot);
		}
	}
	
}


/// <summary>
/// 更新Task的Mode参数
/// </summary>
/// <param name="pTask"></param>
void WindowAppTaskMonitorView::updateTaskMode(const TASK* pTask)
{
	const QVector<QTableWidgetItem*>& pTaskItems = m_TaskTableWidgetItems.value(pTask->strName);

	pTaskItems[TABLE_MONITOR_INDEX_MODE]->setText(pTask->strModeName);
}


/// <summary>
/// 更新Task的状态参数
/// </summary>
/// <param name="pTask"></param>
void WindowAppTaskMonitorView::updateTaskStatus(const TASK* pTask)
{
	const QVector<QTableWidgetItem*>& pTaskItems = m_TaskTableWidgetItems.value(pTask->strName);
	const TASK_PARAMS& params = pTask->execParams;

	pTaskItems[TABLE_MONITOR_INDEX_STATUS]->setText(emExecStatus.key((short)params.nStatus));
}


/// <summary>
/// 更新Task的配置参数
/// </summary>
/// <param name="pTask"></param>
void WindowAppTaskMonitorView::updateTaskOption(const TASK* pTask)
{
	const QVector<QTableWidgetItem*>& pTaskItems = m_TaskTableWidgetItems.value(pTask->strName);
//	const TASK_PARAMS& params = pTask->execParams;

	pTaskItems[TABLE_MONITOR_INDEX_MODE]->setText(pTask->strModeName);
// 	pTaskItems[TABLE_MONITOR_INDEX_PRIORITY]->setText(emPriority.key((short)params.nPriority));
// 	pTaskItems[TABLE_MONITOR_INDEX_TASKINTERV]->setText(QString::number(params.nPostDelay));
}



/// <summary>
/// 
/// </summary>
void WindowAppTaskMonitorView::getCPU()
{
#ifdef Q_OS_WIN
	static FILETIME preidleTime;
	static FILETIME prekernelTime;
	static FILETIME preuserTime;

	FILETIME idleTime;
	FILETIME kernelTime;
	FILETIME userTime;

	GetSystemTimes(&idleTime, &kernelTime, &userTime);

	quint64 a, b;
	quint64 idle, kernel, user;

	a = (preidleTime.dwHighDateTime << 31) | preidleTime.dwLowDateTime;
	b = (idleTime.dwHighDateTime << 31) | idleTime.dwLowDateTime;
	idle = b - a;

	a = (prekernelTime.dwHighDateTime << 31) | prekernelTime.dwLowDateTime;
	b = (kernelTime.dwHighDateTime << 31) | kernelTime.dwLowDateTime;
	kernel = b - a;

	a = (preuserTime.dwHighDateTime << 31) | preuserTime.dwLowDateTime;
	b = (userTime.dwHighDateTime << 31) | userTime.dwLowDateTime;
	user = b - a;
	
	if ((kernel + user) == 0)
	{
		return;
	}

	cpuPercent = (kernel + user - idle + 0.0001) * 100 / (kernel + user + 0.0001);



	preidleTime = idleTime;
	prekernelTime = kernelTime;
	preuserTime = userTime;
#else
	if (process->state() == QProcess::NotRunning) {
		totalNew = idleNew = 0;
		process->start("cat /proc/stat");
	}
#endif
}


/// <summary>
/// 
/// </summary>
void WindowAppTaskMonitorView::getMemory()
{
#ifdef Q_OS_WIN
	MEMORYSTATUSEX statex;
	statex.dwLength = sizeof(statex);
	GlobalMemoryStatusEx(&statex);
	memoryPercent = statex.dwMemoryLoad;
	memoryAll = statex.ullTotalPhys / MB;
	memoryFree = statex.ullAvailPhys / MB;
	memoryUse = memoryAll - memoryFree;
#else
	if (process->state() == QProcess::NotRunning) {
		process->start("cat /proc/meminfo");
	}
#endif
}


/// <summary>
/// 
/// </summary>
void WindowAppTaskMonitorView::slotReadData()
{
	while (!process->atEnd()) 
	{
		QString s = QLatin1String(process->readLine());

		if (s.startsWith("cpu")) 
		{
			QStringList list = s.split(" ");
			idleNew = list.at(5).toUInt();

			foreach(QString value, list) {
				totalNew += value.toUInt();
			}

			quint64 total = totalNew - totalOld;
			quint64 idle = idleNew - idleOld;
			cpuPercent = 100 * (total - idle) / total;
			totalOld = totalNew;
			idleOld = idleNew;
			break;
		}
		else if (s.startsWith("MemTotal"))
		{
			s.replace(" ", "");
			s = s.split(":").at(1);
			memoryAll = s.left(s.length() - 3).toUInt() / KB;
		}
		else if (s.startsWith("MemFree")) 
		{
			s.replace(" ", "");
			s = s.split(":").at(1);
			memoryFree = s.left(s.length() - 3).toUInt() / KB;
		}
		else if (s.startsWith("Buffers")) 
		{
			s.replace(" ", "");
			s = s.split(":").at(1);
			memoryFree += s.left(s.length() - 3).toUInt() / KB;
		}
		else if (s.startsWith("Cached")) 
		{
			s.replace(" ", "");
			s = s.split(":").at(1);
			memoryFree += s.left(s.length() - 3).toUInt() / KB;
			memoryUse = memoryAll - memoryFree;
			memoryPercent = 100 * memoryUse / memoryAll;
			break;
		}
	}
}


void WindowAppTaskMonitorView::showEvent(QShowEvent* event)
{
	Q_UNUSED(event);

	// qDebug() << "WindowAppVariableTable::resizeEvent";
	int nTotalSize = m_pMonitorTable->size().width();

	m_pMonitorTable->setColumnWidth(TABLE_MONITOR_INDEX_INDEX, nTotalSize * 0.05);
	m_pMonitorTable->setColumnWidth(TABLE_MONITOR_INDEX_NAME, nTotalSize * 0.2);
	m_pMonitorTable->setColumnWidth(TABLE_MONITOR_INDEX_MODE, nTotalSize * 0.2);
	m_pMonitorTable->setColumnWidth(TABLE_MONITOR_INDEX_STATUS, nTotalSize * 0.1);
	m_pMonitorTable->setColumnWidth(TABLE_MONITOR_INDEX_EXECTIME, nTotalSize * 0.15);
	m_pMonitorTable->setColumnWidth(TABLE_MONITOR_INDEX_EXECCOUNT, nTotalSize * 0.15);
	m_pMonitorTable->setColumnWidth(TABLE_MONITOR_INDEX_ERRORCOUNT, nTotalSize * 0.15);


	m_pMonitorTable->resize(ui.tabMonitor->size());
}


void WindowAppTaskMonitorView::changeEvent(QEvent* event)
{
	Q_UNUSED(event);
	if (this->m_pMonitorTable != nullptr)
	{
		this->m_pMonitorTable->update();
	}
	
}