#include "dlgviscositysetting.h"
#include "ui_dlgviscositysetting.h"

#include <QDir>
#include <QSettings>
#include <QDebug>

#define WAITTIMEMAX 20

DlgViscositySetting::DlgViscositySetting(QWidget *parent) :
    QDialog(parent),
    ui(new Ui::DlgViscositySetting)
{
    ui->setupUi(this);
}

DlgViscositySetting::~DlgViscositySetting()
{
    if (timer) {
        timer->stop();
        delete timer;
        timer = nullptr;
    }
    delete ui;
}

void DlgViscositySetting::bindSysPara(SysPara *sysPara)
{
    this->sysPara = sysPara;
    init();
}

int DlgViscositySetting::getAlertValue()
{
    return ui->sb_alert->value();
}

int DlgViscositySetting::getCloseValue()
{
    return ui->sb_close->value();
}

void DlgViscositySetting::init()
{
    if (sysPara) {
        loadConfig();
        initTimer();
    }
}

void DlgViscositySetting::initTimer()
{
    if (timer == nullptr) {
        timer = new QTimer(this);
        connect(timer, &QTimer::timeout,
                this, &DlgViscositySetting::onTimeOut);
        timer->start(1000);
    }
}

void DlgViscositySetting::loadConfig()
{
    QSettings settings(kConfDir+kConfFile, QSettings::IniFormat);

    // 若 ini 中没有值，使用 SpinBox 当前默认值
    alertV = settings.value(kGroupViscosity + "/" + kKeyAlertThreshold,
                               ui->sb_alert->value()).toInt();
    closeV = settings.value(kGroupViscosity + "/" + kKeyCloseThreshold,
                               ui->sb_close->value()).toInt();
    if (alertV < 100) alertV = 250;
    if (closeV < 160) closeV = 300;
    ui->sb_alert->setValue(alertV);
    ui->sb_close->setValue(closeV);
}

void DlgViscositySetting::saveConfig()
{
    // 确保目录存在
    QDir dir(kConfDir);
    if (!dir.exists()) {
        if (!dir.mkpath(".")) {
//            qWarning() << "无法创建配置目录:" << kConfDir;
            return;
        }
    }

    QSettings settings(kConfDir+kConfFile, QSettings::IniFormat);
    settings.setValue(kGroupViscosity + "/" + kKeyAlertThreshold, ui->sb_alert->value());
    settings.setValue(kGroupViscosity + "/" + kKeyCloseThreshold, ui->sb_close->value());
    settings.sync();

    if (settings.status() != QSettings::NoError) {
        qWarning() << "写入配置文件失败:" << kConfDir+kConfFile;
    } else {
        qDebug() << "配置已保存到:" << kConfDir+kConfFile;
    }
}

short DlgViscositySetting::checkClose(int visCurr, int visSetting)
{
    if (visCurr == 0) return 0;

    if (visCurr - closeV >= visSetting) {
        return 1;
    } else if (visCurr + closeV <= visSetting) {
        return 2;
    }
    return 0;
}

short DlgViscositySetting::checkAlert(int visCurr, int visSetting)
{
    if (visCurr == 0) return 0;

    if (visCurr - alertV >= visSetting) {
        return 1;
    } else if (visCurr + alertV <= visSetting) {
        return 2;
    }
    return 0;
}

static short alertTimes = 0;
static short closeTimes = 0;
// 如果提示了，就等10分钟后再重新检查,WAITTIMEMAX = 600
static short waitTimes = 0;
void DlgViscositySetting::onTimeOut()
{
    // 1秒一次，5秒防抖
    if (sysPara) {
        visSetting = sysPara->para.viscosity;
        visCurr = sysPara->status.viscosity;
        // test
//        sysPara->status.viscosity = 1000;
//        sysPara->status.selfCheckDone = 1;
//        visCurr = sysPara->status.viscosity;

        ui->lb_settings->setText(QString::number(visSetting));
        ui->lb_current->setText(QString::number(visCurr));

        if (waitTimes-- > 0) {
            return;
        }

        // 虽然处理并不严谨，但是直接最低值切换到最高值的情况几乎不会发生
        // 是否触发关闭喷嘴
        short closeV = checkClose(visCurr, visSetting);
        if (closeV != 0) {
            if (closeTimes++ > 5) {
                bool closeFlag = closeV == 1? true : false;
                emit sig_close(closeFlag);
                closeTimes = 0;
                waitTimes = WAITTIMEMAX;
                alertTimes = 0;
                return;
            }
        } else {
            closeTimes = 0;
        }

        // 是否触发报警
        short alertV = checkAlert(visCurr, visSetting);
        if (alertV != 0) {
            if (alertTimes++ > 5) {
                bool alertFlag = alertV == 1? true : false;
                emit sig_alert(alertFlag);
                alertTimes = 0;
                waitTimes = WAITTIMEMAX;
            }
        } else {
            alertTimes = 0;
        }
    }
}


void DlgViscositySetting::on_checkBtn_clicked()
{
    saveConfig();
    visSetting = sysPara->para.viscosity;
    visCurr = sysPara->status.viscosity;
    closeV = ui->sb_close->value();
    alertV = ui->sb_alert->value();
}

void DlgViscositySetting::on_closeBtn_clicked()
{
    this->hide();
}

void DlgViscositySetting::on_sb_alert_editingFinished()
{
    int tmp = ui->sb_alert->value();
    // 告警阈值最小100，关闭阈值至少比告警大60
    if (tmp < 100) {
        ui->sb_alert->setValue(100);
        tmp = 100;
    }
    if (tmp > ui->sb_close->value()) {
        ui->sb_close->setValue(tmp+60);
    }
}

void DlgViscositySetting::on_sb_close_editingFinished()
{
    int tmp = ui->sb_close->value();
    // 告警阈值最小100，关闭阈值至少比告警大60
    if (tmp < 160) {
        ui->sb_close->setValue(160);
        tmp = 160;
    }
    if (tmp < ui->sb_alert->value()) {
        ui->sb_alert->setValue(tmp-60);
    }
}