/****************************************************************************
**
** Copyright (C) 2016 BogDan Vatra <bog_dan_ro@yahoo.com>
** Contact: https://www.qt.io/licensing/
**
** This file is part of Qt Creator.
**
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** accordance with the commercial license agreement provided with the
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**
** GNU General Public License Usage
** Alternatively, this file may be used under the terms of the GNU
** General Public License version 3 as published by the Free Software
** Foundation with exceptions as appearing in the file LICENSE.GPL3-EXCEPT
** included in the packaging of this file. Please review the following
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** be met: https://www.gnu.org/licenses/gpl-3.0.html.
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****************************************************************************/

#include "androidsettingswidget.h"

#include "ui_androidsettingswidget.h"

#include "androidconfigurations.h"
#include "androidconstants.h"
#include "androidtoolchain.h"
#include "androidavdmanager.h"
#include "androidsdkmanager.h"
#include "avddialog.h"
#include "androidsdkmanagerwidget.h"

#include <utils/qtcassert.h>
#include <utils/environment.h>
#include <utils/elidinglabel.h>
#include <utils/hostosinfo.h>
#include <utils/pathchooser.h>
#include <utils/runextensions.h>
#include <utils/utilsicons.h>
#include <projectexplorer/toolchainmanager.h>
#include <projectexplorer/kitmanager.h>
#include <projectexplorer/kitinformation.h>
#include <projectexplorer/projectexplorerconstants.h>
#include <qtsupport/qtkitinformation.h>
#include <qtsupport/qtversionmanager.h>

#include <QFile>
#include <QTextStream>
#include <QProcess>
#include <QTimer>
#include <QTime>

#include <QDesktopServices>
#include <QFileDialog>
#include <QMessageBox>
#include <QModelIndex>
#include <QtCore/QUrl>

namespace Android {
namespace Internal {

namespace {
enum JavaValidation {
    JavaPathExistsRow,
    JavaJdkValidRow
};

enum AndroidValidation {
    SdkPathExistsRow,
    SdkPathWritableRow,
    SdkToolsInstalledRow,
    PlatformToolsInstalledRow,
    BuildToolsInstalledRow,
    SdkManagerSuccessfulRow,
    PlatformSdkInstalledRow,
    NdkPathExistsRow,
    NdkDirStructureRow,
    NdkinstallDirOkRow
};
}

class SummaryWidget : public QWidget
{
    class RowData {
    public:
        QLabel *m_iconLabel = nullptr;
        Utils::ElidingLabel *m_textLabel = nullptr;
        bool m_valid = false;
    };

public:
    SummaryWidget(const QMap<int, QString> &validationPoints, const QString &validText,
                  const QString &invalidText, Utils::DetailsWidget *detailsWidget) :
        QWidget(detailsWidget),
        m_validText(validText),
        m_invalidText(invalidText),
        m_detailsWidget(detailsWidget)
    {
        QTC_CHECK(m_detailsWidget);
        auto layout = new QGridLayout(this);
        layout->setContentsMargins(12, 12, 12, 12);
        int row = 0;
        for (auto itr = validationPoints.cbegin(); itr != validationPoints.cend(); ++itr) {
            RowData data;
            data.m_iconLabel = new QLabel(this);
            layout->addWidget(data.m_iconLabel, row, 0, 1, 1);
            data.m_textLabel = new Utils::ElidingLabel(itr.value(), this);
            data.m_textLabel->setElideMode(Qt::ElideRight);
            data.m_textLabel->setSizePolicy(QSizePolicy::Expanding, QSizePolicy::Preferred);
            layout->addWidget(data.m_textLabel, row, 1, 1, 1);
            m_validationData[itr.key()] = data;
            setPointValid(itr.key(), true);
            ++row;
        }
    }

    void setPointValid(int key, bool valid)
    {
        if (!m_validationData.contains(key))
            return;
        RowData& data = m_validationData[key];
        data.m_valid = valid;
        data.m_iconLabel->setPixmap(data.m_valid ? Utils::Icons::OK.pixmap() :
                                                   Utils::Icons::BROKEN.pixmap());
        updateUi();
    }

    bool rowsOk(QList<int> keys) const
    {
        for (auto key : keys) {
            if (!m_validationData[key].m_valid)
                return false;
        }
        return true;
    }

    bool allRowsOk() const { return rowsOk(m_validationData.keys()); }
    void setInfoText(const QString &text) {
        m_infoText = text;
        updateUi();
    }

private:
    void updateUi() {
        bool ok = allRowsOk();
        m_detailsWidget->setIcon(ok ? Utils::Icons::OK.icon() :
                                      Utils::Icons::CRITICAL.icon());
        m_detailsWidget->setSummaryText(ok ? QString("%1 %2").arg(m_validText).arg(m_infoText)
                                           : m_invalidText);
    }
    QString m_validText;
    QString m_invalidText;
    QString m_infoText;
    Utils::DetailsWidget *m_detailsWidget = nullptr;
    QMap<int, RowData> m_validationData;
};

void AvdModel::setAvdList(const AndroidDeviceInfoList &list)
{
    beginResetModel();
    m_list = list;
    endResetModel();
}

QModelIndex AvdModel::indexForAvdName(const QString &avdName) const
{
    for (int i = 0; i < m_list.size(); ++i) {
        if (m_list.at(i).serialNumber == avdName)
            return index(i, 0);
    }
    return QModelIndex();
}

QString AvdModel::avdName(const QModelIndex &index) const
{
    return m_list.at(index.row()).avdname;
}

QVariant AvdModel::data(const QModelIndex &index, int role) const
{
    if (role != Qt::DisplayRole || !index.isValid())
        return QVariant();
    switch (index.column()) {
        case 0:
            return m_list[index.row()].avdname;
        case 1:
            return QString::fromLatin1("API %1").arg(m_list[index.row()].sdk);
        case 2: {
            QStringList cpuAbis = m_list[index.row()].cpuAbi;
            return cpuAbis.isEmpty() ? QVariant() : QVariant(cpuAbis.first());
        }
    }
    return QVariant();
}

QVariant AvdModel::headerData(int section, Qt::Orientation orientation, int role) const
{
    if (orientation == Qt::Horizontal && role == Qt::DisplayRole) {
        switch (section) {
            case 0:
                //: AVD - Android Virtual Device
                return tr("AVD Name");
            case 1:
                return tr("AVD Target");
            case 2:
                return tr("CPU/ABI");
        }
    }
    return QAbstractItemModel::headerData(section, orientation, role );
}

int AvdModel::rowCount(const QModelIndex &/*parent*/) const
{
    return m_list.size();
}

int AvdModel::columnCount(const QModelIndex &/*parent*/) const
{
    return 3;
}

AndroidSettingsWidget::AndroidSettingsWidget(QWidget *parent)
    : QWidget(parent),
      m_ui(new Ui_AndroidSettingsWidget),
      m_androidConfig(AndroidConfigurations::currentConfig()),
      m_avdManager(new AndroidAvdManager(m_androidConfig)),
      m_sdkManager(new AndroidSdkManager(m_androidConfig))
{
    m_ui->setupUi(this);
    m_sdkManagerWidget = new AndroidSdkManagerWidget(m_androidConfig, m_sdkManager.get(),
                                                     m_ui->sdkManagerTab);
    auto sdkMangerLayout = new QVBoxLayout(m_ui->sdkManagerTab);
    sdkMangerLayout->setContentsMargins(0, 0, 0, 0);
    sdkMangerLayout->addWidget(m_sdkManagerWidget);
    connect(m_sdkManagerWidget, &AndroidSdkManagerWidget::updatingSdk, [this]() {
        m_ui->SDKLocationPathChooser->setEnabled(false);
        // Disable the tab bar to restrict the user moving away from sdk manager tab untill
        // operations finish.
        m_ui->managerTabWidget->tabBar()->setEnabled(false);
    });
    connect(m_sdkManagerWidget, &AndroidSdkManagerWidget::updatingSdkFinished, [this]() {
        m_ui->SDKLocationPathChooser->setEnabled(true);
        m_ui->managerTabWidget->tabBar()->setEnabled(true);
    });

    QMap<int, QString> javaValidationPoints;
    javaValidationPoints[JavaPathExistsRow] = tr("JDK path exists.");
    javaValidationPoints[JavaJdkValidRow] = tr("JDK path is a valid JDK root folder.");
    auto javaSummary = new SummaryWidget(javaValidationPoints, tr("Java Settings are OK."),
                                         tr("Java settings have errors."), m_ui->javaDetailsWidget);
    m_ui->javaDetailsWidget->setWidget(javaSummary);

    QMap<int, QString> androidValidationPoints;
    androidValidationPoints[SdkPathExistsRow] = tr("Android SDK path exists.");
    androidValidationPoints[SdkPathWritableRow] = tr("Android SDK path writable.");
    androidValidationPoints[SdkToolsInstalledRow] = tr("SDK tools installed.");
    androidValidationPoints[PlatformToolsInstalledRow] = tr("Platform tools installed.");
    androidValidationPoints[SdkManagerSuccessfulRow] = tr(
        "SDK manager runs (requires exactly Java 1.8).");
    androidValidationPoints[BuildToolsInstalledRow] = tr("Build tools installed.");
    androidValidationPoints[PlatformSdkInstalledRow] = tr("Platform SDK installed.");
    androidValidationPoints[NdkPathExistsRow] = tr("Android NDK path exists.");
    androidValidationPoints[NdkDirStructureRow] = tr("Android NDK directory structure is correct.");
    androidValidationPoints[NdkinstallDirOkRow] = tr("Android NDK installed into a path without "
                                                     "spaces.");
    auto androidSummary = new SummaryWidget(androidValidationPoints, tr("Android settings are OK."),
                                            tr("Android settings have errors."),
                                            m_ui->androidDetailsWidget);
    m_ui->androidDetailsWidget->setWidget(androidSummary);

    m_ui->SDKLocationPathChooser->setFileName(m_androidConfig.sdkLocation());
    m_ui->SDKLocationPathChooser->setPromptDialogTitle(tr("Select Android SDK folder"));
    m_ui->NDKLocationPathChooser->setFileName(m_androidConfig.ndkLocation());
    m_ui->NDKLocationPathChooser->setPromptDialogTitle(tr("Select Android NDK folder"));

    m_ui->OpenJDKLocationPathChooser->setFileName(m_androidConfig.openJDKLocation());
    m_ui->OpenJDKLocationPathChooser->setPromptDialogTitle(tr("Select JDK Path"));
    m_ui->DataPartitionSizeSpinBox->setValue(m_androidConfig.partitionSize());
    m_ui->CreateKitCheckBox->setChecked(m_androidConfig.automaticKitCreation());
    m_ui->AVDTableView->setModel(&m_AVDModel);
    m_ui->AVDTableView->horizontalHeader()->setSectionResizeMode(QHeaderView::Stretch);
    m_ui->AVDTableView->horizontalHeader()->setSectionResizeMode(1, QHeaderView::ResizeToContents);

    m_ui->downloadOpenJDKToolButton->setVisible(!Utils::HostOsInfo::isLinuxHost());

    const QIcon downloadIcon = Utils::Icons::DOWNLOAD.icon();
    m_ui->downloadSDKToolButton->setIcon(downloadIcon);
    m_ui->downloadNDKToolButton->setIcon(downloadIcon);
    m_ui->downloadOpenJDKToolButton->setIcon(downloadIcon);

    connect(&m_virtualDevicesWatcher, &QFutureWatcherBase::finished,
            this, &AndroidSettingsWidget::updateAvds);
    connect(&m_futureWatcher, &QFutureWatcherBase::finished,
            this, &AndroidSettingsWidget::avdAdded);
    connect(m_ui->NDKLocationPathChooser, &Utils::PathChooser::rawPathChanged,
            this, &AndroidSettingsWidget::validateNdk);
    connect(m_ui->SDKLocationPathChooser, &Utils::PathChooser::rawPathChanged,
            this, &AndroidSettingsWidget::onSdkPathChanged);
    connect(m_ui->OpenJDKLocationPathChooser, &Utils::PathChooser::rawPathChanged,
            this, &AndroidSettingsWidget::validateJdk);
    connect(m_ui->AVDAddPushButton, &QAbstractButton::clicked,
            this, &AndroidSettingsWidget::addAVD);
    connect(m_ui->AVDRemovePushButton, &QAbstractButton::clicked,
            this, &AndroidSettingsWidget::removeAVD);
    connect(m_ui->AVDStartPushButton, &QAbstractButton::clicked,
            this, &AndroidSettingsWidget::startAVD);
    connect(m_ui->AVDTableView, &QAbstractItemView::activated,
            this, &AndroidSettingsWidget::avdActivated);
    connect(m_ui->AVDTableView, &QAbstractItemView::clicked,
            this, &AndroidSettingsWidget::avdActivated);
    connect(m_ui->DataPartitionSizeSpinBox, &QAbstractSpinBox::editingFinished,
            this, &AndroidSettingsWidget::dataPartitionSizeEditingFinished);
    connect(m_ui->nativeAvdManagerButton, &QAbstractButton::clicked,
            this, &AndroidSettingsWidget::manageAVD);
    connect(m_ui->CreateKitCheckBox, &QAbstractButton::toggled,
            this, &AndroidSettingsWidget::createKitToggled);
    connect(m_ui->downloadSDKToolButton, &QAbstractButton::clicked,
            this, &AndroidSettingsWidget::openSDKDownloadUrl);
    connect(m_ui->downloadNDKToolButton, &QAbstractButton::clicked,
            this, &AndroidSettingsWidget::openNDKDownloadUrl);
    connect(m_ui->downloadOpenJDKToolButton, &QAbstractButton::clicked,
            this, &AndroidSettingsWidget::openOpenJDKDownloadUrl);
    // Validate SDK again after any change in SDK packages.
    connect(m_sdkManager.get(), &AndroidSdkManager::packageReloadFinished,
            this, &AndroidSettingsWidget::validateSdk);
    validateJdk();
    validateNdk();
    // Reloading SDK packages is still synchronous. Use zero timer to let settings dialog open
    // first.
    QTimer::singleShot(0, std::bind(&AndroidSdkManager::reloadPackages, m_sdkManager.get(), false));
}

AndroidSettingsWidget::~AndroidSettingsWidget()
{
    // Deleting m_sdkManagerWidget will cancel all ongoing and pending sdkmanager operations.
    delete m_sdkManagerWidget;
    delete m_ui;
    m_futureWatcher.waitForFinished();
}

void AndroidSettingsWidget::disableAvdControls()
{
    m_ui->AVDAddPushButton->setEnabled(false);
    m_ui->AVDTableView->setEnabled(false);
    m_ui->AVDRemovePushButton->setEnabled(false);
    m_ui->AVDStartPushButton->setEnabled(false);
}

void AndroidSettingsWidget::enableAvdControls()
{
    m_ui->AVDTableView->setEnabled(true);
    m_ui->AVDAddPushButton->setEnabled(true);
    avdActivated(m_ui->AVDTableView->currentIndex());
}

void AndroidSettingsWidget::startUpdateAvd()
{
    disableAvdControls();
    m_virtualDevicesWatcher.setFuture(m_avdManager->avdList());
}

void AndroidSettingsWidget::updateAvds()
{
    m_AVDModel.setAvdList(m_virtualDevicesWatcher.result());
    if (!m_lastAddedAvd.isEmpty()) {
        m_ui->AVDTableView->setCurrentIndex(m_AVDModel.indexForAvdName(m_lastAddedAvd));
        m_lastAddedAvd.clear();
    }
    enableAvdControls();
}

void AndroidSettingsWidget::saveSettings()
{
    AndroidConfigurations::setConfig(m_androidConfig);
}

void AndroidSettingsWidget::validateJdk()
{
    auto javaPath = Utils::FilePath::fromUserInput(m_ui->OpenJDKLocationPathChooser->rawPath());
    m_androidConfig.setOpenJDKLocation(javaPath);
    bool jdkPathExists = m_androidConfig.openJDKLocation().exists();
    auto summaryWidget = static_cast<SummaryWidget *>(m_ui->javaDetailsWidget->widget());
    summaryWidget->setPointValid(JavaPathExistsRow, jdkPathExists);

    const Utils::FilePath bin = m_androidConfig.openJDKLocation().pathAppended("bin/javac" QTC_HOST_EXE_SUFFIX);
    summaryWidget->setPointValid(JavaJdkValidRow, jdkPathExists && bin.exists());
    updateUI();
}

void AndroidSettingsWidget::validateNdk()
{
    auto ndkPath = Utils::FilePath::fromUserInput(m_ui->NDKLocationPathChooser->rawPath());
    m_androidConfig.setNdkLocation(ndkPath);

    auto summaryWidget = static_cast<SummaryWidget *>(m_ui->androidDetailsWidget->widget());
    summaryWidget->setPointValid(NdkPathExistsRow, m_androidConfig.ndkLocation().exists());

    const Utils::FilePath ndkPlatformsDir = ndkPath.pathAppended("platforms");
    const Utils::FilePath ndkToolChainsDir = ndkPath.pathAppended("toolchains");
    const Utils::FilePath ndkSourcesDir = ndkPath.pathAppended("sources/cxx-stl");
    summaryWidget->setPointValid(NdkDirStructureRow,
                                 ndkPlatformsDir.exists()
                                 && ndkToolChainsDir.exists()
                                 && ndkSourcesDir.exists());
    summaryWidget->setPointValid(NdkinstallDirOkRow,
                                 ndkPlatformsDir.exists() &&
                                 !ndkPlatformsDir.toString().contains(' '));
    updateUI();
}

void AndroidSettingsWidget::onSdkPathChanged()
{
    auto sdkPath = Utils::FilePath::fromUserInput(m_ui->SDKLocationPathChooser->rawPath());
    m_androidConfig.setSdkLocation(sdkPath);
    // Package reload will trigger validateSdk.
    m_sdkManager->reloadPackages();
}

void AndroidSettingsWidget::validateSdk()
{
    auto summaryWidget = static_cast<SummaryWidget *>(m_ui->androidDetailsWidget->widget());
    summaryWidget->setPointValid(SdkPathExistsRow, m_androidConfig.sdkLocation().exists());
    summaryWidget->setPointValid(SdkPathWritableRow, m_androidConfig.sdkLocation().isWritablePath());
    summaryWidget->setPointValid(SdkToolsInstalledRow,
                                 !m_androidConfig.sdkToolsVersion().isNull());
    summaryWidget->setPointValid(PlatformToolsInstalledRow,
                                 m_androidConfig.adbToolPath().exists());
    summaryWidget->setPointValid(BuildToolsInstalledRow,
                                 !m_androidConfig.buildToolsVersion().isNull());

    summaryWidget->setPointValid(SdkManagerSuccessfulRow, m_sdkManager->packageListingSuccessful());
    // installedSdkPlatforms should not trigger a package reload as validate SDK is only called
    // after AndroidSdkManager::packageReloadFinished.
    summaryWidget->setPointValid(PlatformSdkInstalledRow,
                                 !m_sdkManager->installedSdkPlatforms().isEmpty());
    updateUI();
    bool sdkToolsOk = summaryWidget->rowsOk(
        {SdkPathExistsRow, SdkPathWritableRow, SdkToolsInstalledRow, SdkManagerSuccessfulRow});
    bool componentsOk = summaryWidget->rowsOk({PlatformToolsInstalledRow,
                                                      BuildToolsInstalledRow,
                                                      PlatformSdkInstalledRow});

    if (sdkToolsOk && !componentsOk && !m_androidConfig.useNativeUiTools()) {
        // Ask user to install essential SDK components. Works only for sdk tools version >= 26.0.0
        QString message = tr("Android SDK installation is missing necessary packages. Do you "
                             "want to install the missing packages?");
        auto userInput = QMessageBox::information(this, tr("Missing Android SDK packages"),
                                                  message, QMessageBox::Yes | QMessageBox::No);
        if (userInput == QMessageBox::Yes) {
            m_ui->managerTabWidget->setCurrentWidget(m_ui->sdkManagerTab);
            m_sdkManagerWidget->installEssentials();
        }
    }
}

void AndroidSettingsWidget::openSDKDownloadUrl()
{
    QDesktopServices::openUrl(QUrl::fromUserInput("https://developer.android.com/studio/"));
}

void AndroidSettingsWidget::openNDKDownloadUrl()
{
    QDesktopServices::openUrl(QUrl::fromUserInput("https://developer.android.com/ndk/downloads/"));
}

void AndroidSettingsWidget::openOpenJDKDownloadUrl()
{
    QDesktopServices::openUrl(QUrl::fromUserInput("http://www.oracle.com/technetwork/java/javase/downloads/"));
}

void AndroidSettingsWidget::addAVD()
{
    disableAvdControls();
    CreateAvdInfo info = AvdDialog::gatherCreateAVDInfo(this, m_sdkManager.get());

    if (!info.isValid()) {
        enableAvdControls();
        return;
    }

    m_futureWatcher.setFuture(m_avdManager->createAvd(info));
}

void AndroidSettingsWidget::avdAdded()
{
    CreateAvdInfo info = m_futureWatcher.result();
    if (!info.error.isEmpty()) {
        enableAvdControls();
        QMessageBox::critical(this, QApplication::translate("AndroidConfig", "Error Creating AVD"), info.error);
        return;
    }

    startUpdateAvd();
    m_lastAddedAvd = info.name;
}

void AndroidSettingsWidget::removeAVD()
{
    disableAvdControls();
    QString avdName = m_AVDModel.avdName(m_ui->AVDTableView->currentIndex());
    if (QMessageBox::question(this, tr("Remove Android Virtual Device"),
                              tr("Remove device \"%1\"? This cannot be undone.").arg(avdName),
                              QMessageBox::Yes | QMessageBox::No)
            == QMessageBox::No) {
        enableAvdControls();
        return;
    }

    m_avdManager->removeAvd(avdName);
    startUpdateAvd();
}

void AndroidSettingsWidget::startAVD()
{
    m_avdManager->startAvdAsync(m_AVDModel.avdName(m_ui->AVDTableView->currentIndex()));
}

void AndroidSettingsWidget::avdActivated(const QModelIndex &index)
{
    m_ui->AVDRemovePushButton->setEnabled(index.isValid());
    m_ui->AVDStartPushButton->setEnabled(index.isValid());
}

void AndroidSettingsWidget::dataPartitionSizeEditingFinished()
{
    m_androidConfig.setPartitionSize(m_ui->DataPartitionSizeSpinBox->value());
}

void AndroidSettingsWidget::createKitToggled()
{
    m_androidConfig.setAutomaticKitCreation(m_ui->CreateKitCheckBox->isChecked());
}

void AndroidSettingsWidget::updateUI()
{
    auto javaSummaryWidget = static_cast<SummaryWidget *>(m_ui->javaDetailsWidget->widget());
    auto androidSummaryWidget = static_cast<SummaryWidget *>(m_ui->androidDetailsWidget->widget());
    bool javaSetupOk = javaSummaryWidget->allRowsOk();
    bool sdkToolsOk = androidSummaryWidget->rowsOk({SdkPathExistsRow, SdkPathWritableRow, SdkToolsInstalledRow});
    bool androidSetupOk = androidSummaryWidget->allRowsOk();

    m_ui->avdManagerTab->setEnabled(javaSetupOk && androidSetupOk);
    m_ui->sdkManagerTab->setEnabled(sdkToolsOk);
    m_sdkManagerWidget->setSdkManagerControlsEnabled(!m_androidConfig.useNativeUiTools());

    auto infoText = tr("(SDK Version: %1, NDK Version: %2)")
            .arg(m_androidConfig.sdkToolsVersion().toString())
            .arg(m_androidConfig.ndkVersion().toString());
    androidSummaryWidget->setInfoText(androidSetupOk ? infoText : "");

    m_ui->javaDetailsWidget->setState(javaSetupOk ? Utils::DetailsWidget::Collapsed :
                                                    Utils::DetailsWidget::Expanded);
    m_ui->androidDetailsWidget->setState(androidSetupOk ? Utils::DetailsWidget::Collapsed :
                                                          Utils::DetailsWidget::Expanded);
    startUpdateAvd();
}

void AndroidSettingsWidget::manageAVD()
{
    if (m_androidConfig.useNativeUiTools()) {
        m_avdManager->launchAvdManagerUiTool();
    } else {
        QMessageBox::warning(this, tr("AVD Manager Not Available"),
                             tr("AVD manager UI tool is not available in the installed SDK tools"
                                "(version %1). Use the command line tool \"avdmanager\" for "
                                "advanced AVD management.")
                             .arg(m_androidConfig.sdkToolsVersion().toString()));
    }
}


} // namespace Internal
} // namespace Android
