#include "mainwidget.h"
#include "ui_mainwidget.h"
#include <QtCore>
#include "mainconfig.h"

#define NAMELIST_LENGTH 4
QString namelist[] = {"传十一","传十三","传十五","传十七"};
qint8 gindex = 0;

MainWidget::MainWidget(HttpService *httpService,
                       WebsocketService *websocketService,
                       DeviceService *deviceService,
                       QWidget *parent) :
    m_httpService(httpService),
    m_websocketService(websocketService),
    m_deviceService(deviceService),
    QWidget(parent),
    ui(new Ui::MainWidget)
{
    ui->setupUi(this);
    m_patientIndex = 0;
    m_wsConnectedStatus = 0;
    m_maxPatientNum = MainConfig::maxPatientNum.toInt();
    m_switchPatientInterval = MainConfig::switchPatientInterval.toInt();
    keyDownPInfo = Q_NULLPTR;//zhixiang kongzhizhen

    //1s倒计时
    m_countDownTimer.setInterval(1000);
    m_countDownTimer.start();
    connect(&m_countDownTimer, &QTimer::timeout,[=](){
        for(PatientEmergencyInfo *info : m_patientEmergencyInfos){
            if(info->realCountDownInSeconds > 0){
                info->realCountDownInSeconds--;
            }
        }
        updateUi();
    });

    //切换病人
    m_switchPatientTimer.setInterval(m_switchPatientInterval * 1000);
    m_switchPatientTimer.start();
    connect(&m_switchPatientTimer, &QTimer::timeout,[=](){
        if(++m_patientIndex >= m_patientEmergencyInfos.length()){
            m_patientIndex = 0;
        }
        updateUi();
        m_curX = 0;
    });

    //LED闪烁
    m_ledTurnTimer.setInterval(1000);
    connect(&m_ledTurnTimer, &QTimer::timeout,[=](){
        m_deviceService->m_ledStatus ^= 1;
        m_deviceService->ledSet(m_deviceService->m_ledStatus);
    });

    //显示连接状态
    ui->statusLabel->setText("Not Connected");

    //显示设置
    font1.setPointSize(180);
    font2.setPointSize(180);
    font3.setPointSize(20);
    ui->textLabel->setFont(font1);
    ui->countdownLabel->setFont(font2);
    ui->statusLabel->setFont(font3);
    ui->textLabel->setStyleSheet("QLabel {color: rgb(255,0,0);}");//设置文本红色
    ui->countdownLabel->setStyleSheet("QLabel {color: rgb(255,0,0);}");//设置文本红色
    ui->statusLabel->setStyleSheet("QLabel {color: rgb(85,255,0);}");//设置文本绿色
    //    ui->textLabel->setAlignment(Qt::AlignHCenter);
    //    ui->countdownLabel->setAlignment(Qt::AlignHCenter);
    //    ui->statusLabel->setAlignment(Qt::AlignRight);

    isFenzhen = false;
    m_curX = 0;
    connect(&m_lableScrollTimer,SIGNAL(timeout()),this,SLOT(lableScrollDisplay()));
    m_lableScrollTimer.start(10);

    this->setCursor(Qt::BlankCursor);
}

MainWidget::~MainWidget()
{
    delete ui;
}

void MainWidget::updateUi()
{
//    m_curX = 0;//内容超出显示区域时，更新患者信息显示从头开始滚动

    //更新statusLabel
//    ui->statusLabel->setText(QString("%1 | %2")
//                             .arg(m_wsConnectedStatus == 0 ? "未连接" : "已连接")
//                             .arg(m_patientEmergencyInfos.length())
//                    );
    if(m_wsConnectedStatus){
        ui->LEDLabel->setStyleSheet("border-image: url(:/image/1LED_green.png);");
    }else{
        ui->LEDLabel->setStyleSheet("border-image: url(::/image/1LED_gray.png);");
    }
    if(m_patientEmergencyInfos.length() == 0){
        ui->statusLabel->setText(QString::number(m_patientEmergencyInfos.length()));
    }else{
        ui->statusLabel->setText(QString::number(m_patientIndex+1) + "/" +  QString::number(m_patientEmergencyInfos.length()));
    }

    if(m_patientEmergencyInfos.length() == 0){
        //不显示
        ui->textLabel->setText("");
        ui->countdownLabel->setText("");
        return;
    }

    //获取当前病人
    if(m_patientIndex >= m_patientEmergencyInfos.length()){
        m_patientIndex = 0;
    }
    PatientEmergencyInfo *pInfo = m_patientEmergencyInfos[m_patientIndex];

    //显示文本
    ui->textLabel->setText(pInfo->text);

    //显示倒计时
    QString str = "";
    if(pInfo->realCountDownInSeconds < 0){
        str = "";
        isFenzhen = true;
    }else{
        int hour,min,sec,nTotalSecs;
        nTotalSecs = pInfo->realCountDownInSeconds;
        sec  = nTotalSecs % 60;
        //    min  = nTotalSecs / 60 % 60;
        min  = nTotalSecs / 60 ;  //min显示大于60
        hour = nTotalSecs / 3600;
        str = QString("%1:%2").arg(min,2,10,QLatin1Char('0')).arg(sec,2,10,QLatin1Char('0'));
    }
    ui->countdownLabel->setText(str);
}

void MainWidget::paintEvent(QPaintEvent *event)
{
    //设置背景图片
    QPainter p(this);
    p.drawPixmap(0,0,this->width(),this->height(),QPixmap(":/image/black_bg.jpg"));
    //    qDebug() << "MainWidget::paintEvent";

    //重新调整label字体大小
    //TODO
}

void MainWidget::resizeEvent(QResizeEvent *event)
{
    QWidget::resizeEvent(event);

    //标题
//        ui->textLabel->setGeometry(0,0,this->width(),(this->height()-30)/2);
    ui->countdownLabel->setGeometry(0,(this->height()-30)/2,this->width(),(this->height()-30)/2);
    ui->LEDLabel->setGeometry(this->width()-110,this->height()-30,30,30);
    ui->statusLabel->setGeometry(this->width()-80,this->height()-30,55,30);
}

void MainWidget::lableScrollDisplay()
{
//    qDebug()<<"m_curX = "<<m_curX;

    if(m_patientEmergencyInfos.length() == 0){
        return;
    }
    QFontMetrics fm(font1);
    m_width = fm.width(ui->textLabel->text());
    m_height = ui->textLabel->height();
    if(isFenzhen){
        m_y = (this->height()-m_height)/2;
    }
    else{
        int m_y = 0;
    }
    if(this->width() > m_width){
        ui->textLabel->setGeometry((this->width()-m_width)/2, m_y,m_width,(this->height()-30)/2);
    }
    else{
        m_curX ++;
        ui->textLabel->setGeometry(150-m_curX*5,m_y,m_width,(this->height()-30)/2);
    }
    if(m_curX > m_width){
        m_curX = 0;
    }
}

void MainWidget::onWsConnectedStatusChanged(int status)
{
    qDebug() << "MainWidget::onWsConnectedStatusChanged " << status;
    m_wsConnectedStatus = status;
    updateUi();
}

void MainWidget::onNewPatientMergencyInfo(QString firstAidId, QString name, QString content, qint64 realCountDownInSeconds)
{
    //TODO 此处是否需要加锁处理
    PatientEmergencyInfo *pInfo = new PatientEmergencyInfo(firstAidId,name,content,realCountDownInSeconds);
    addPatientToList(pInfo);
    qDebug() << "MainWidget::onNewPatientMergencyInfo " << firstAidId << name << content << realCountDownInSeconds;
    m_ledTurnTimer.start();
}

void MainWidget::onPatientMergencyStatusChanged(QString firstAidId,QString time, QString status)
{
    //TODO firstAidId == null 选择倒计时最小的急救

    qDebug() << "MainWidget::onPatientMergencyStatusChanged " << firstAidId << time << status;

    if(status == 0){
        return;
    }

    //发送信号，该信号与httpservice的updatestatus请求绑定
    emit statusChanged(firstAidId,status);

    //处理状态改变
    if(status == 1){ //进行中（拍了一下按键）

    }else if(status == 2){//服务环节结束
        deletePatientFromList(firstAidId);
    }
}

void MainWidget::onKeyClicked()
{
    emit complexOneKeyStart("142733198703123918",::namelist[::gindex],"1","汉族");
    qDebug() << "Key Clicked";

    if(++::gindex >= NAMELIST_LENGTH){
        ::gindex = 0;
    }
}

void MainWidget::onKeyDown()
{
    qDebug() << "emit keyDown()";
    if(m_patientEmergencyInfos.length() > 0){
        keyDownPInfo = m_patientEmergencyInfos[m_patientIndex];
    }
}

void MainWidget::onKeyWorked(KeyFlag flag)
{
    qDebug() << "emit keyWork()" << flag;
    if(flag == Click){
        m_ledTurnTimer.stop();
        m_deviceService->m_ledStatus = 0;
        m_deviceService->ledSet(m_deviceService->m_ledStatus);
        onKeyClicked();
    }else if(flag == Dbl_Click){
        qDebug()<<"Key Dbl_Clicked";
        //切换病人
        if(++m_patientIndex >= m_patientEmergencyInfos.length()){
            m_patientIndex = 0;
        }
        updateUi();
        m_curX = 0;
    }else if(flag == Press){
        qDebug()<<"Key Press";
        if(keyDownPInfo != Q_NULLPTR){
            deletePatientFromList(keyDownPInfo->id);
            keyDownPInfo = Q_NULLPTR;
        }
        m_deviceService->m_ledStatus = 1;
        m_deviceService->ledSet(m_deviceService->m_ledStatus);
    }
}

void MainWidget::addPatientToList(PatientEmergencyInfo *info)
{
    //1.如果有就删除，以保证同一个病人按两次应该重新开始计时
    deletePatientFromList(info->id);

    //2.如果超过长度，就删除第一个，取后来的
    if(m_patientEmergencyInfos.length() >= m_maxPatientNum){
        delete m_patientEmergencyInfos[0];
        m_patientEmergencyInfos.pop_front();
    }

    //3.加入链表
    m_patientEmergencyInfos.push_back(info);

    onKeyDown();//模拟按键按下
}

void MainWidget::deletePatientFromList(QString firstAidId)
{
    for(int i=0;i<m_patientEmergencyInfos.length();i++){
        if(m_patientEmergencyInfos[i]->id == firstAidId){
            delete m_patientEmergencyInfos[i];
            m_patientEmergencyInfos.removeAt(i);
            break;
        }
    }
}

void MainWidget::mousePressEvent(QMouseEvent *event)
{

    if(event->button()==Qt::LeftButton){
        //TODO
    }
    else if(event->button()==Qt::RightButton){

    }
}
//鼠标左键双击，代替按键一下
//鼠标右键双击，代替按键两下
void MainWidget::mouseDoubleClickEvent(QMouseEvent *event)
{
    if(event->button()==Qt::LeftButton){
        //TODO
        m_deviceService->key.flag = Click;
        onKeyWorked(m_deviceService->key.flag);
    }
    else if(event->button()==Qt::RightButton){
        m_deviceService->key.flag = Dbl_Click;
        onKeyWorked(m_deviceService->key.flag);
    }
}
//鼠标滚动,代替长按
void MainWidget::wheelEvent(QWheelEvent *event)
{    // 当滚轮远离使用者时
        if(event->delta() > 0){
            //TODO
        }else{//当滚轮向使用者方向旋转时
            m_deviceService->key.flag = Press;
            onKeyWorked(m_deviceService->key.flag);
        }
}