#include "nmWxDFNExportDlg.h"
#include "nmWxDFNExportDlg.h"
#include "nmDataAnalyzeManager.h"
#include "nmDataFracture.h"

#include <QFile>
#include <QTextStream>
#include <QMessageBox>
#include <QApplication>
//#include <QClipboard>
#include <QVBoxLayout>
#include <QHBoxLayout>
#include <QGroupBox>
#include <QRadioButton>
#include <QLineEdit>
#include <QPushButton>
#include <QFileDialog>
#include <QLabel>
#include <QMessageBox>

nmWxDFNExportDlg::nmWxDFNExportDlg(QWidget *parent)
    : iDlgBase(parent)
{
    setWindowTitle(tr("Export DFN"));
    setMinimumSize(400, 200);

    initUI();
    initConnections();
    onTargetChanged();  // 初始化文件路径控件状态
}

nmWxDFNExportDlg::~nmWxDFNExportDlg() {}

void nmWxDFNExportDlg::initUI()
{
    QVBoxLayout* pMainLayout = new QVBoxLayout(this);

    // Export options group
    QGroupBox* pOptionsGroup = new QGroupBox(tr("Export options"), this);
    QVBoxLayout* pOptLayout = new QVBoxLayout(pOptionsGroup);
    m_pRoundedRadio = new QRadioButton(tr("Rounded"), pOptionsGroup);
    m_pExactRadio = new QRadioButton(tr("Exact"),   pOptionsGroup);
    m_pRoundedRadio->setChecked(true);
    pOptLayout->addWidget(m_pRoundedRadio);
    pOptLayout->addWidget(m_pExactRadio);
    pMainLayout->addWidget(pOptionsGroup);

    // Export to group
    QGroupBox* pTargetGroup = new QGroupBox(tr("Export to"), this);
    QVBoxLayout* pTgtLayout = new QVBoxLayout(pTargetGroup);

    // Clipboard option
    m_pClipboardRadio = new QRadioButton(tr("Clipboard"), pTargetGroup);
    m_pClipboardRadio->setChecked(true);
    pTgtLayout->addWidget(m_pClipboardRadio);

    // File option + path + browse on one line
    m_pFileRadio = new QRadioButton(tr("File"), pTargetGroup);
    QHBoxLayout* fileLayout = new QHBoxLayout();
    fileLayout->addWidget(m_pFileRadio);

    m_pFilePathEdit = new QLineEdit(pTargetGroup);
    m_pFilePathEdit->setEnabled(false);
    m_pFilePathEdit->setSizePolicy(QSizePolicy::Expanding, QSizePolicy::Preferred);
    fileLayout->addWidget(m_pFilePathEdit, 1);

    m_pBrowseButton = new QPushButton(tr("..."), pTargetGroup);
    m_pBrowseButton->setEnabled(false);
    fileLayout->addWidget(m_pBrowseButton);

    pTgtLayout->addLayout(fileLayout);
    pMainLayout->addWidget(pTargetGroup);

    // OK / Cancel buttons
    QHBoxLayout* pBtnLayout = new QHBoxLayout();
    pBtnLayout->addStretch();
    m_pOkButton = new QPushButton(tr("OK"), this);
    m_pCancelButton = new QPushButton(tr("Cancel"), this);
    pBtnLayout->addWidget(m_pOkButton);
    pBtnLayout->addWidget(m_pCancelButton);
    pMainLayout->addLayout(pBtnLayout);
}

void nmWxDFNExportDlg::initConnections()
{
    connect(m_pBrowseButton, SIGNAL(clicked()), this, SLOT(onBrowseClicked()));
    connect(m_pFileRadio, SIGNAL(toggled(bool)), this, SLOT(onTargetChanged()));
    connect(m_pClipboardRadio, SIGNAL(toggled(bool)), this, SLOT(onTargetChanged()));
    connect(m_pOkButton, SIGNAL(clicked()), this, SLOT(onOkClicked()));
    connect(m_pCancelButton, SIGNAL(clicked()), this, SLOT(onCancelClicked()));
}

void nmWxDFNExportDlg::onBrowseClicked()
{
    QString filter = tr("(*.txt)");
    QString file = QFileDialog::getSaveFileName(this, tr("Export to File"), QString(), filter);
    if (!file.isEmpty()) {
        m_pFilePathEdit->setText(file);
    }
}

void nmWxDFNExportDlg::onTargetChanged()
{
    bool toFile = m_pFileRadio->isChecked();
    m_pFilePathEdit->setEnabled(toFile);
    m_pBrowseButton->setEnabled(toFile);
}

void nmWxDFNExportDlg::onOkClicked()
{
    // 如果是文件导出，检查路径
    if ( m_pFileRadio->isChecked() && m_pFilePathEdit->text().isEmpty() ) {
        QMessageBox::warning(this, tr("Error"), tr("Please select a file path"));
        return;
    }

    // 准备精度和默认值
    bool rounded = m_pRoundedRadio->isChecked();
    int prec = rounded ? 2 : 4;
    double defaultWf = 0.00328084;  // m
    double defaultPhi = 0.0;         // °
    QString coordUnit = tr("m");
    QString widthUnit = tr("m");
    //QString phiUnit = tr("°");

    // 构造 CSV 头、单位行
    QStringList header;
    header << "Name" << "X1" << "Y1" << "X2" << "Y2" << "Wf" << "o";

    QStringList units;
    units << "DFN Name"
        << coordUnit
        << coordUnit
        << coordUnit
        << coordUnit
        << widthUnit ;

    QStringList lines;
    lines << header.join(",")
        << units.join(",");

    // 拿所有 DFN 类型的裂缝，拼每一行数据
    QVector<nmDataFracture*> allFracs = nmDataAnalyzeManager::getCurrentInstance()->getDFNFractureDataList();
    foreach ( nmDataFracture* f, allFracs ) {
        // 只导出 fractureType == "DFN"
        if ( f->getFractureType().getValue().toString() != tr("DFN") )
            continue;

        QVector<QPointF> pts = f->getFracturePoints();
        if ( pts.size() != 2 )
            continue;

        QStringList row;
        row << f->getFractureName()
            << QString::number(pts[0].x(), 'f', prec)
            << QString::number(pts[0].y(), 'f', prec)
            << QString::number(pts[1].x(), 'f', prec)
            << QString::number(pts[1].y(), 'f', prec)
            << QString::number(defaultWf,  'f', prec)
            << QString::number(defaultPhi, 'f', prec);

        lines << row.join(",");
    }

    QString content = lines.join("\n");

    // 导出到文件或剪贴板
    if ( m_pFileRadio->isChecked() ) {
        QString path = m_pFilePathEdit->text();
        if ( !path.endsWith(".txt", Qt::CaseInsensitive) )
            path += ".txt";

        QFile file(path);
        if ( !file.open(QIODevice::WriteOnly | QIODevice::Text) ) {
            QMessageBox::warning(this, tr("Export Error"),
                tr("Cannot write file:\n%1").arg(path));
            return;
        }
        QTextStream out(&file);
        out << content;
        file.close();

    }
    else {
        // TODO 写入剪切板
        //QClipboard *cb = QApplication::clipboard();
        //cb->setText(content);
        //QMessageBox::information(this, tr("Export"), tr("Copied to clipboard"));
    }

    accept();
}

void nmWxDFNExportDlg::onCancelClicked()
{
    reject();
}

bool nmWxDFNExportDlg::isRounded() const
{
    return m_pRoundedRadio->isChecked();
}

bool nmWxDFNExportDlg::exportToFile() const
{
    return m_pFileRadio->isChecked();
}

QString nmWxDFNExportDlg::exportFilePath() const
{
    return m_pFilePathEdit->text();
}