HX_CoalFlowDetect/view/coalstatisticschartwidget.cpp

#include "coalstatisticschartwidget.h"
#include "ui_coalstatisticschartwidget.h"

#include <QHttpPart>
#include <QJsonDocument>
#include <QJsonObject>
#include <QNetworkAccessManager>
#include <QNetworkReply>
#include <QNetworkRequest>
#include <QUrl>
#include <QUrlQuery>

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

    m_systemSetting = new QSettings("system.ini", QSettings::IniFormat);

    initCoalStatisticsBarChart();

    getCoalStatisInfoByHttpRequest("2024-09-01 08", "2024-09-02 08");
}

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

void CoalStatisticsChartWidget::on_pushButton_coalStatisOk_clicked()
{
    // 时间范围
    QString beginTimeStr = ui->dateTimeEdit_startTime->text();
    QString endTimeStr = ui->dateTimeEdit_endTime->text();

    qDebug() << "beginTimeStr" << beginTimeStr;
    qDebug() << "endTimeStr" << endTimeStr;

    // 创建 QDateTime 对象
    QDateTime beginTime = QDateTime::fromString(beginTimeStr, "yyyy/MM/d HH:mm");
    QDateTime endTime = QDateTime::fromString(endTimeStr, "yyyy/MM/d HH:mm");

    // 判断是否转换成功
    if (!beginTime.isValid() || !endTime.isValid()) {
        qDebug() << "Invalid date/time format!";
        return;
    }

    int unitIndex = ui->comboBox_unit->currentIndex();

    // 选择的时间单位
    switch (unitIndex) {
    case TimeUnit::Hour: {
        // 计算整时
        QList<QDateTime> dateTimes;
        int minutes = beginTime.time().minute(); // 获取分钟部分
        beginTime = beginTime.addSecs(-minutes * 60); // 向下取整

        // 遍历时间范围
        while (beginTime <= endTime) {
            dateTimes.append(beginTime);
            beginTime = beginTime.addSecs(3600); // 增加1小时
        }

        // 输出结果
        for (const QDateTime& dateTime : dateTimes) {
            qDebug() << "整小时数" << dateTime.toString("yyyy/MM/d HH:mm");
        }
        break;
    }
    case TimeUnit::Day: {
        // 计算整天
        QList<QDateTime> dateTimes;
        beginTime.setTime(QTime(0, 0)); // 将起始时间设置为当天的00:00:00

        // 遍历时间范围
        while (beginTime <= endTime) {
            dateTimes.append(beginTime);
            beginTime = beginTime.addDays(1); // 增加1天
        }

        // 输出结果
        for (const QDateTime& dateTime : dateTimes) {
            qDebug() << "整天数" << dateTime.toString("yyyy/MM/d");
        }
        break;
    }
    case TimeUnit::Month: {
        // 计算整月
        QList<QDateTime> dateTimes;
        beginTime.setDate(QDate(beginTime.date().year(), beginTime.date().month(), 1)); // 设置为当月的1号

        // 遍历时间范围
        while (beginTime <= endTime) {
            dateTimes.append(beginTime);
            beginTime = beginTime.addMonths(1); // 增加1个月
        }

        // 输出结果
        for (const QDateTime& dateTime : dateTimes) {
            qDebug() << "整月数" << dateTime.toString("yyyy/MM");
        }
        break;
    }
    case TimeUnit::Year: {
        // 计算整年
        QList<QDateTime> dateTimes;
        beginTime.setDate(QDate(beginTime.date().year(), 1, 1)); // 设置为当年的1月1日

        // 遍历时间范围
        while (beginTime <= endTime) {
            dateTimes.append(beginTime);
            beginTime = beginTime.addYears(1); // 增加1年
        }

        // 输出结果
        for (const QDateTime& dateTime : dateTimes) {
            qDebug() << "整年数" << dateTime.toString("yyyy");
        }
        break;
    }
    default:
        qDebug() << "无效的时间单位!";
        break;
    }
}

void CoalStatisticsChartWidget::initCoalStatisticsBarChart()
{
    // 创建图表
    m_chart = new QChart();
    m_chart->setBackgroundBrush(Qt::transparent);
    m_chart->setMargins(QMargins(0, 0, 0, 0));
    m_chart->legend()->hide();

    // 创建图表视图并设置
    m_chartView = new QChartView(m_chart);
    m_chartView->setBackgroundBrush(Qt::transparent);
    m_chartView->setStyleSheet("background: transparent;");
    m_chartView->setRenderHint(QPainter::Antialiasing);
    m_chartView->setSizePolicy(QSizePolicy::Expanding, QSizePolicy::Expanding);

    // 创建柱状图
    m_series = new QBarSeries();
    m_chart->addSeries(m_series);

    // 设置X轴为时间
    m_axisX = new QDateTimeAxis;
    m_axisX->setFormat("yyyy/MM/d H"); // 设置日期时间格式
    //    m_axisX->setTitleText("时间");
    m_axisX->setTitleBrush(QBrush(Qt::gray));
    m_axisX->setLinePen(QPen(Qt::gray));
    m_axisX->setLabelsColor(Qt::gray);

    // 获取当前时间并设置时间范围为最近六个小时
    QDateTime currentTime = QDateTime::currentDateTime();
    QDateTime startTime = currentTime.addSecs(-6 * 3600); // 当前时间减去六个小时

    //    m_axisX->setLabelsAngle(45);

    // 设置X轴时间范围
    m_axisX->setRange(startTime, currentTime);
    m_chart->addAxis(m_axisX, Qt::AlignBottom);
    m_series->attachAxis(m_axisX);

    // 设置Y轴为百分比
    m_axisY = new QValueAxis;
    m_axisY->setTitleText("吨");
    m_axisY->setTitleBrush(QBrush(Qt::gray));
    m_axisY->setLinePen(QPen(Qt::gray));
    m_axisY->setLabelsColor(Qt::gray);
    m_axisY->setRange(0, 100);
    m_chart->addAxis(m_axisY, Qt::AlignLeft);
    m_series->attachAxis(m_axisY);
    m_axisY->setTitleFont(QFont("Arial", 10));
    m_axisY->setTitleVisible(true);

    // 获取 widget_coalChart 的布局
    QVBoxLayout* layout = static_cast<QVBoxLayout*>(ui->widget_coalChart->layout());
    if (!layout) {
        // 如果没有布局，创建一个新的布局并设置
        layout = new QVBoxLayout(ui->widget_coalChart);
        ui->widget_coalChart->setLayout(layout);
    }

    // 设置布局参数
    layout->setContentsMargins(0, 0, 0, 0);
    layout->setSpacing(0);

    // 确保视图只添加一次
    if (!layout->indexOf(m_chartView) != -1) {
        layout->addWidget(m_chartView);
    }
}

void CoalStatisticsChartWidget::getCoalStatisInfoByHttpRequest(const QString& beginTime, const QString& endTime)
{
    // 使用类成员变量 QNetworkAccessManager
    QNetworkAccessManager* manager = new QNetworkAccessManager(this);

    QString coalStaticUrl = m_systemSetting->value("coalStaticInterface/url").toString();

    // URL
    QUrl url(coalStaticUrl);
    QNetworkRequest request(url);

    // Form data
    QHttpMultiPart* multiPart = new QHttpMultiPart(QHttpMultiPart::FormDataType);

    // begin_time 参数
    QHttpPart beginTimePart;
    beginTimePart.setHeader(QNetworkRequest::ContentDispositionHeader, QVariant("form-data; name=\"begin_time\""));
    beginTimePart.setBody(beginTime.toUtf8());

    // end_time 参数
    QHttpPart endTimePart;
    endTimePart.setHeader(QNetworkRequest::ContentDispositionHeader, QVariant("form-data; name=\"end_time\""));
    endTimePart.setBody(endTime.toUtf8());

    // 将表单字段附加到 multipart 请求体中
    multiPart->append(beginTimePart);
    multiPart->append(endTimePart);

    // 发送 POST 请求
    QNetworkReply* reply = manager->post(request, multiPart);

    // 连接信号和槽
    QObject::connect(reply, &QNetworkReply::finished, [this, reply, multiPart]() {
        if (reply->error() == QNetworkReply::NoError) {
            // 处理成功的响应
            QByteArray responseData = reply->readAll();
            QJsonDocument jsonResponse = QJsonDocument::fromJson(responseData);
            QJsonObject jsonObj = jsonResponse.object();

            int code = jsonObj["code"].toInt();
            QString message = jsonObj["message"].toString();
            QJsonObject data = jsonObj["data"].toObject();
            double totalVolume = data["total_volum"].toDouble();

            qDebug() << "Code:" << code;
            qDebug() << "Message:" << message;
            qDebug() << "Total Volume:" << totalVolume;
        } else {
            // 处理错误
            QString errorString = reply->errorString();
            qDebug() << "Error:" << errorString;
        }

        // 清理资源
        reply->deleteLater();
        multiPart->deleteLater();
    });
}