#include "UserOperationLogForm.h"
#include <QVBoxLayout>
#include <QHBoxLayout>
#include <QAbstractListModel>
#include <QScrollBar>
#include "log/LogManager.h"
#include "log/LogFileTableModel.h"
#include <QHeaderView>
#include <QLabel>
#include <QTableView>
#include "components/SlideTableView.h"
#include <QPushButton>
#include "src/dialogs/SelectDialog.h"
#include "windows/MainWindow.h"
#include "event/EventCenter.h"

QString fileNameToDate(QString fileName)
{
    return fileName.split("log/UserOperationLog/")[1].replace("-op.log", "");
}
QString dateToFileName(QString date)
{
    return QString("./log/UserOperationLog/") + date + QString("-op.log");
}

UserOperationLogForm::UserOperationLogForm(QWidget* parent)
    : QWidget (parent)
{
    mLayout = new QVBoxLayout(this);
	QWidget* header = new QWidget(this);
	QHBoxLayout* headerLayout = new QHBoxLayout(header);
	QLabel* logdate = new QLabel(tr("Log Date:"));
	headerLayout->addWidget(logdate);
    mDateButton = new QPushButton(header);
    headerLayout->addWidget(mDateButton, 0, Qt::AlignLeft);
	headerLayout->addSpacerItem(new QSpacerItem(20, 20, QSizePolicy::Expanding));

    mModel = new LogFileTableModel(this);
    mModel->setHeader(QStringList()<< tr("Operation Date") << tr("Operation Time") << tr("User") << tr("Operation"));
    loadUserOperationLog();
    mLogTable = new SlideTableView(this);
    mLayout->addWidget(header);
    mLayout->addWidget(mLogTable);
    mLogTable->setModel(mModel);
    mLogTable->setAlternatingRowColors(true);
    mLogTable->setSelectionMode(QAbstractItemView::NoSelection);
    mLogTable->setEditTriggers(QAbstractItemView::NoEditTriggers);
    mLogTable->verticalHeader()->setDefaultSectionSize(38);
    mLogTable->horizontalHeader()->setStretchLastSection(true);
    mLogTable->horizontalHeader()->setSectionResizeMode(QHeaderView::Fixed);
    mLogTable->setColumnWidth(0, 250);
    mLogTable->setColumnWidth(1, 250);
    mLogTable->setColumnWidth(2, 200);
    mLogTable->verticalScrollBar()->setStyleSheet("QScrollBar:vertical { width: 40px; }");;

	//暂时先放构造函数，之后需要移除，等需要时再调用

    connect(mDateButton, &QPushButton::clicked, [=]() {
		auto files = UserOperationLog::getHistoryLogFiles();
		QStringList dates;
		for (auto f : files)
		{
			dates << fileNameToDate(f);
		}
        if (!mSelectDateDialog) {
            mSelectDateDialog = new SelectDialog(this);
            mSelectDateDialog->setWindowModality(Qt::WindowModal);
		}
        mSelectDateDialog->setValues(dates);
        if (!mSelectedDateStr.isEmpty()) mSelectDateDialog->setSelectedValue(mSelectedDateStr);
        if (mSelectDateDialog->exec() == QDialog::Accepted)
		{
            QString date = mSelectDateDialog->getSelectedValue();
			QString f = dateToFileName(date);
			this->loadUserOperationLog(f, date);
		}
		});

	connect(EventCenter::Default(), &EventCenter::ReloadLanguage, [=]() {
		logdate->setText(tr("Log Date:"));
        mModel->setHeader(QStringList()<< tr("Operation Date") << tr("Operation Time") << tr("User") << tr("Operation"));
		});


}

UserOperationLogForm::~UserOperationLogForm() {

}

void UserOperationLogForm::loadUserOperationLog()
{
    QString filePath = LogManager::getInstance()->getCurrentUserOperationLogFile();
    mDateButton->setText(fileNameToDate(filePath));
	loadUserOperationLog(filePath, fileNameToDate(filePath));
    mSelectedDateStr = fileNameToDate(filePath);
}

void UserOperationLogForm::loadUserOperationLog(const QString& fileName, const QString& date) {
    mSelectedDateStr = date;
    mModel->setFileName(dateToFileName(date));
    mDateButton->setText(date);
}

void UserOperationLogForm::showEvent(QShowEvent *aEvent)
{
    loadUserOperationLog("", mSelectedDateStr);
    QWidget::showEvent(aEvent);
}