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#include "autotestconstants.h"
#include "testframeworkmanager.h"
#include "testsettingspage.h"
#include "testsettings.h"
#include "testtreemodel.h"

#include <coreplugin/icore.h>
#include <coreplugin/coreicons.h>

#include <utils/hostosinfo.h>

namespace Autotest {
namespace Internal {

TestSettingsWidget::TestSettingsWidget(QWidget *parent)
    : QWidget(parent)
{
    m_ui.setupUi(this);
    m_ui.callgrindRB->setEnabled(Utils::HostOsInfo::isAnyUnixHost()); // valgrind available on UNIX
    m_ui.perfRB->setEnabled(Utils::HostOsInfo::isLinuxHost()); // according to docs perf Linux only

    m_ui.frameworksWarnIcon->setVisible(false);
    m_ui.frameworksWarnIcon->setPixmap(Core::Icons::WARNING.pixmap());
    m_ui.frameworksWarn->setVisible(false);
    m_ui.frameworksWarn->setText(tr("No active test frameworks."));
    m_ui.frameworksWarn->setToolTip(tr("You will not be able to use the AutoTest plugin without "
                                       "having at least one active test framework."));
    connect(m_ui.repeatGTestsCB, &QCheckBox::toggled, m_ui.repetitionSpin, &QSpinBox::setEnabled);
    connect(m_ui.shuffleGTestsCB, &QCheckBox::toggled, m_ui.seedSpin, &QSpinBox::setEnabled);
    connect(m_ui.frameworkListWidget, &QListWidget::itemChanged,
            this, &TestSettingsWidget::onFrameworkItemChanged);
}

void TestSettingsWidget::setSettings(const TestSettings &settings)
{
    m_ui.timeoutSpin->setValue(settings.timeout / 1000); // we store milliseconds
    m_ui.omitInternalMsgCB->setChecked(settings.omitInternalMssg);
    m_ui.omitRunConfigWarnCB->setChecked(settings.omitRunConfigWarn);
    m_ui.limitResultOutputCB->setChecked(settings.limitResultOutput);
    m_ui.autoScrollCB->setChecked(settings.autoScroll);
    m_ui.alwaysParseCB->setChecked(settings.alwaysParse);
    m_ui.runDisabledGTestsCB->setChecked(settings.gtestRunDisabled);
    m_ui.repeatGTestsCB->setChecked(settings.gtestRepeat);
    m_ui.shuffleGTestsCB->setChecked(settings.gtestShuffle);
    m_ui.repetitionSpin->setValue(settings.gtestIterations);
    m_ui.seedSpin->setValue(settings.gtestSeed);

    switch (settings.metrics) {
    case MetricsType::Walltime:
        m_ui.walltimeRB->setChecked(true);
        break;
    case MetricsType::TickCounter:
        m_ui.tickcounterRB->setChecked(true);
        break;
    case MetricsType::EventCounter:
        m_ui.eventCounterRB->setChecked(true);
        break;
    case MetricsType::CallGrind:
        m_ui.callgrindRB->setChecked(true);
        break;
    case MetricsType::Perf:
        m_ui.perfRB->setChecked(true);
        break;
    default:
        m_ui.walltimeRB->setChecked(true);
    }
    populateFrameworksListWidget(settings.frameworks);
}

TestSettings TestSettingsWidget::settings() const
{
    TestSettings result;
    result.timeout = m_ui.timeoutSpin->value() * 1000; // we display seconds
    result.omitInternalMssg = m_ui.omitInternalMsgCB->isChecked();
    result.omitRunConfigWarn = m_ui.omitRunConfigWarnCB->isChecked();
    result.limitResultOutput = m_ui.limitResultOutputCB->isChecked();
    result.autoScroll = m_ui.autoScrollCB->isChecked();
    result.alwaysParse = m_ui.alwaysParseCB->isChecked();
    result.gtestRunDisabled = m_ui.runDisabledGTestsCB->isChecked();
    result.gtestRepeat = m_ui.repeatGTestsCB->isChecked();
    result.gtestShuffle = m_ui.shuffleGTestsCB->isChecked();
    result.gtestIterations = m_ui.repetitionSpin->value();
    result.gtestSeed = m_ui.seedSpin->value();

    if (m_ui.walltimeRB->isChecked())
        result.metrics = MetricsType::Walltime;
    else if (m_ui.tickcounterRB->isChecked())
        result.metrics = MetricsType::TickCounter;
    else if (m_ui.eventCounterRB->isChecked())
        result.metrics = MetricsType::EventCounter;
    else if (m_ui.callgrindRB->isChecked())
        result.metrics = MetricsType::CallGrind;
    else if (m_ui.perfRB->isChecked())
        result.metrics = MetricsType::Perf;

    result.frameworks = frameworks();

    return result;
}

void TestSettingsWidget::populateFrameworksListWidget(const QHash<Core::Id, bool> &frameworks)
{
    TestFrameworkManager *frameworkManager = TestFrameworkManager::instance();
    const QList<Core::Id> &registered = frameworkManager->sortedRegisteredFrameworkIds();
    m_ui.frameworkListWidget->clear();
    for (const Core::Id &id : registered) {
        QListWidgetItem *item = new QListWidgetItem(frameworkManager->frameworkNameForId(id),
                                                    m_ui.frameworkListWidget);
        item->setFlags(Qt::ItemIsEnabled | Qt::ItemIsSelectable | Qt::ItemIsUserCheckable);
        item->setCheckState(frameworks.value(id) ? Qt::Checked : Qt::Unchecked);
        item->setData(Qt::UserRole, id.toSetting());
    }
}

QHash<Core::Id, bool> TestSettingsWidget::frameworks() const
{
    const int itemCount = m_ui.frameworkListWidget->count();
    QHash<Core::Id, bool> frameworks;
    for (int row = 0; row < itemCount; ++row) {
        if (QListWidgetItem *item = m_ui.frameworkListWidget->item(row)) {
            frameworks.insert(Core::Id::fromSetting(item->data(Qt::UserRole)),
                              item->checkState() == Qt::Checked);
        }
    }
    return frameworks;
}

void TestSettingsWidget::onFrameworkItemChanged()
{
    for (int row = 0, count = m_ui.frameworkListWidget->count(); row < count; ++row) {
        if (m_ui.frameworkListWidget->item(row)->checkState() == Qt::Checked) {
            m_ui.frameworksWarn->setVisible(false);
            m_ui.frameworksWarnIcon->setVisible(false);
            return;
        }
    }
    m_ui.frameworksWarn->setVisible(true);
    m_ui.frameworksWarnIcon->setVisible(true);
}

TestSettingsPage::TestSettingsPage(const QSharedPointer<TestSettings> &settings)
    : m_settings(settings), m_widget(0)
{
    setId("A.AutoTest.General");
    setDisplayName(tr("General"));
    setCategory(Constants::AUTOTEST_SETTINGS_CATEGORY);
    setDisplayCategory(tr("Test Settings"));
    setCategoryIcon(QLatin1String(":/images/autotest.png"));
}

TestSettingsPage::~TestSettingsPage()
{
}

QWidget *TestSettingsPage::widget()
{
    if (!m_widget) {
        m_widget = new TestSettingsWidget;
        m_widget->setSettings(*m_settings);
    }
    return m_widget;
}

void TestSettingsPage::apply()
{
    if (!m_widget) // page was not shown at all
        return;
    const TestSettings newSettings = m_widget->settings();
    if (newSettings != *m_settings) {
        bool frameworkSyncNecessary = newSettings.frameworks != m_settings->frameworks;
        *m_settings = newSettings;
        m_settings->toSettings(Core::ICore::settings());
        if (m_settings->alwaysParse)
            TestTreeModel::instance()->enableParsingFromSettings();
        else
            TestTreeModel::instance()->disableParsingFromSettings();
        TestFrameworkManager::instance()->activateFrameworksFromSettings(m_settings);
        if (frameworkSyncNecessary)
            TestTreeModel::instance()->syncTestFrameworks();
    }
}

} // namespace Internal
} // namespace Autotest