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#include "maemorunconfigurationwidget.h"

#include "maemodeviceconfiglistmodel.h"
#include "maemomanager.h"
#include "maemoremotemountsmodel.h"
#include "maemorunconfiguration.h"
#include "maemosettingspage.h"

#include <coreplugin/icore.h>

#include <QtGui/QComboBox>
#include <QtGui/QFileDialog>
#include <QtGui/QFormLayout>
#include <QtGui/QGroupBox>
#include <QtGui/QHBoxLayout>
#include <QtGui/QHeaderView>
#include <QtGui/QLabel>
#include <QtGui/QLineEdit>
#include <QtGui/QTableView>
#include <QtGui/QToolButton>

namespace Qt4ProjectManager {
namespace Internal {

MaemoRunConfigurationWidget::MaemoRunConfigurationWidget(
        MaemoRunConfiguration *runConfiguration, QWidget *parent)
    : QWidget(parent), m_runConfiguration(runConfiguration)
{
    QVBoxLayout *mainLayout = new QVBoxLayout;
    setLayout(mainLayout);

    QFormLayout *formLayout = new QFormLayout;
    mainLayout->addLayout(formLayout);
    formLayout->setFormAlignment(Qt::AlignLeft | Qt::AlignVCenter);
    m_configNameLineEdit = new QLineEdit(m_runConfiguration->displayName());
    formLayout->addRow(tr("Run configuration name:"), m_configNameLineEdit);

    QWidget *devConfWidget = new QWidget;
    QHBoxLayout *devConfLayout = new QHBoxLayout(devConfWidget);
    m_devConfBox = new QComboBox;
    m_devConfBox->setSizeAdjustPolicy(QComboBox::AdjustToContents);
    m_devConfBox->setModel(runConfiguration->deviceConfigModel());
    devConfLayout->setMargin(0);
    devConfLayout->addWidget(m_devConfBox);
    QLabel *addDevConfLabel= new QLabel(tr("<a href=\"%1\">Manage device configurations</a>")
        .arg(QLatin1String("deviceconfig")));
    addDevConfLabel->setSizePolicy(QSizePolicy::Maximum, QSizePolicy::Preferred);
    devConfLayout->addWidget(addDevConfLabel);
    
    QLabel *debuggerConfLabel = new QLabel(tr("<a href=\"%1\">Set Debugger</a>")
        .arg(QLatin1String("debugger")));
    debuggerConfLabel->setSizePolicy(QSizePolicy::Maximum, QSizePolicy::Preferred);
    devConfLayout->addWidget(debuggerConfLabel);

    formLayout->addRow(new QLabel(tr("Device configuration:")), devConfWidget);
    m_executableLabel = new QLabel(m_runConfiguration->localExecutableFilePath());
    formLayout->addRow(tr("Executable:"), m_executableLabel);
    m_argsLineEdit = new QLineEdit(m_runConfiguration->arguments().join(" "));
    formLayout->addRow(tr("Arguments:"), m_argsLineEdit);

    mainLayout->addSpacing(20);
    QGroupBox *mountViewBox = new QGroupBox;
#ifndef Q_OS_WIN
    mainLayout->addWidget(mountViewBox);
#endif
    mountViewBox->setTitle(tr("Local Directories to mount from device"));
    QVBoxLayout *mountViewLayout = new QVBoxLayout(mountViewBox);
    QHBoxLayout *hostAddressLayout = new QHBoxLayout;
    mountViewLayout->addLayout(hostAddressLayout);
    QLabel *hostNameLabel
        = new QLabel(tr("This host's address from the device:"));
    m_hostAddressLineEdit = new QLineEdit;
    m_hostAddressLineEdit->setText(m_runConfiguration->localHostAddressFromDevice());
    connect(m_hostAddressLineEdit, SIGNAL(editingFinished()), this,
        SLOT(handleHostAddressChanged()));
    hostAddressLayout->addWidget(hostNameLabel);
    hostAddressLayout->addWidget(m_hostAddressLineEdit);
    hostAddressLayout->addStretch(1);
    QHBoxLayout *tableLayout = new QHBoxLayout;
    mountViewLayout->addLayout(tableLayout);
    m_mountView = new QTableView;
    m_mountView->horizontalHeader()->setResizeMode(QHeaderView::ResizeToContents);
    m_mountView->setSelectionBehavior(QTableView::SelectRows);
    m_mountView->setModel(m_runConfiguration->remoteMounts());
    tableLayout->addWidget(m_mountView);
    QVBoxLayout *mountViewButtonsLayout = new QVBoxLayout;
    tableLayout->addLayout(mountViewButtonsLayout);
    QToolButton *addMountButton = new QToolButton;
    QIcon plusIcon;
    plusIcon.addFile(QLatin1String(":/core/images/plus.png"));
    addMountButton->setIcon(plusIcon);
    mountViewButtonsLayout->addWidget(addMountButton);
    m_removeMountButton = new QToolButton;
    QIcon minusIcon;
    minusIcon.addFile(QLatin1String(":/core/images/minus.png"));
    m_removeMountButton->setIcon(minusIcon);
    mountViewButtonsLayout->addWidget(m_removeMountButton);
    mountViewButtonsLayout->addStretch(1);

    handleCurrentDeviceConfigChanged();
    enableOrDisableRemoveButton();
    connect(m_configNameLineEdit, SIGNAL(textEdited(QString)), this,
        SLOT(configNameEdited(QString)));
    connect(m_argsLineEdit, SIGNAL(textEdited(QString)), this,
        SLOT(argumentsEdited(QString)));
    connect(m_devConfBox, SIGNAL(activated(int)), this,
            SLOT(setCurrentDeviceConfig(int)));
    connect(runConfiguration->deviceConfigModel(), SIGNAL(currentChanged()),
        this, SLOT(handleCurrentDeviceConfigChanged()));
    connect(m_runConfiguration, SIGNAL(targetInformationChanged()), this,
        SLOT(updateTargetInformation()));
    connect(addDevConfLabel, SIGNAL(linkActivated(QString)), this,
        SLOT(showSettingsDialog(QString)));
    connect(debuggerConfLabel, SIGNAL(linkActivated(QString)), this,
        SLOT(showSettingsDialog(QString)));
    connect(addMountButton, SIGNAL(clicked()), this, SLOT(addMount()));
    connect(m_removeMountButton, SIGNAL(clicked()), this, SLOT(removeMount()));
    connect(m_mountView, SIGNAL(doubleClicked(QModelIndex)), this,
        SLOT(changeLocalMountDir(QModelIndex)));
    connect(m_mountView->selectionModel(),
        SIGNAL(selectionChanged(QItemSelection,QItemSelection)), this,
        SLOT(enableOrDisableRemoveButton()));
}

void MaemoRunConfigurationWidget::configNameEdited(const QString &text)
{
    m_runConfiguration->setDisplayName(text);
}

void MaemoRunConfigurationWidget::argumentsEdited(const QString &text)
{
    m_runConfiguration->setArguments(text.split(' ', QString::SkipEmptyParts));
}

void MaemoRunConfigurationWidget::updateTargetInformation()
{
    m_executableLabel->setText(m_runConfiguration->localExecutableFilePath());
}

void MaemoRunConfigurationWidget::showSettingsDialog(const QString &link)
{
    if (link == QLatin1String("deviceconfig")) {
        MaemoSettingsPage *page = MaemoManager::instance().settingsPage();
        Core::ICore::instance()->showOptionsDialog(page->category(), page->id());
    } else if (link == QLatin1String("debugger")) {
        Core::ICore::instance()->showOptionsDialog(QLatin1String("O.Debugger"),
            QLatin1String("M.Gdb"));
    }
}

void MaemoRunConfigurationWidget::handleCurrentDeviceConfigChanged()
{
    m_devConfBox->setCurrentIndex(m_runConfiguration->deviceConfigModel()
        ->currentIndex());
}

void MaemoRunConfigurationWidget::setCurrentDeviceConfig(int index)
{
    m_runConfiguration->deviceConfigModel()->setCurrentIndex(index);
}

void MaemoRunConfigurationWidget::enableOrDisableRemoveButton()
{
    const QModelIndexList selectedRows
        = m_mountView->selectionModel()->selectedRows();
    m_removeMountButton->setEnabled(!selectedRows.isEmpty());
}

void MaemoRunConfigurationWidget::addMount()
{
    const QString localDir = QFileDialog::getExistingDirectory(this,
        tr("Choose directory to mount"));
    if (!localDir.isEmpty()) {
        MaemoRemoteMountsModel * const mountsModel
            = m_runConfiguration->remoteMounts();
        mountsModel->addMountSpecification(localDir);
        m_mountView->edit(mountsModel->index(mountsModel->mountSpecificationCount() - 1,
            mountsModel->RemoteMountPointRow));
    }
}

void MaemoRunConfigurationWidget::removeMount()
{
    const QModelIndexList selectedRows
        = m_mountView->selectionModel()->selectedRows();
    if (!selectedRows.isEmpty()) {
        m_runConfiguration->remoteMounts()
            ->removeMountSpecificationAt(selectedRows.first().row());
    }
}

void MaemoRunConfigurationWidget::changeLocalMountDir(const QModelIndex &index)
{
    if (index.column() == MaemoRemoteMountsModel::LocalDirRow) {
        MaemoRemoteMountsModel * const mountsModel
            = m_runConfiguration->remoteMounts();
        const QString oldDir
            = mountsModel->mountSpecificationAt(index.row()).localDir;
        const QString localDir = QFileDialog::getExistingDirectory(this,
            tr("Choose directory to mount"), oldDir);
        if (!localDir.isEmpty())
            mountsModel->setLocalDir(index.row(), localDir);
    }
}

void MaemoRunConfigurationWidget::handleHostAddressChanged()
{
    m_runConfiguration->setLocalHostAddressFromDevice(m_hostAddressLineEdit->text());
}

} // namespace Internal
} // namespace Qt4ProjectManager