// Copyright (C) 2016 The Qt Company Ltd.
// SPDX-License-Identifier: LicenseRef-Qt-Commercial OR GPL-3.0-only WITH Qt-GPL-exception-1.0

#include "qmlprojectplugin.h"

#include "buildsystem/qmlbuildsystem.h"
#include "qdslandingpage.h"
#include "qmlproject.h"
#include "qmlprojectconstants.h"
#include "qmlprojectmanagertr.h"
#include "qmlprojectrunconfiguration.h"
#include "qmlprojectwizardpage.h"
#include "projectfilecontenttools.h"
#include "qmlprojectexporter/cmakegenerator.h"
#include "qmlprojectexporter/pythongenerator.h"

#include <coreplugin/actionmanager/actioncontainer.h>
#include <coreplugin/actionmanager/actionmanager.h>
#include <coreplugin/coreconstants.h>
#include <coreplugin/designmode.h>
#include <coreplugin/editormanager/editormanager.h>
#include <coreplugin/icore.h>
#include <coreplugin/modemanager.h>

#include <debugger/debuggerruncontrol.h>

#include <extensionsystem/iplugin.h>
#include <extensionsystem/pluginmanager.h>
#include <extensionsystem/pluginspec.h>

#include <projectexplorer/devicesupport/devicekitaspects.h>
#include <projectexplorer/devicesupport/idevice.h>
#include <projectexplorer/projectexplorer.h>
#include <projectexplorer/projectexplorerconstants.h>
#include <projectexplorer/projectmanager.h>
#include <projectexplorer/projectnodes.h>
#include <projectexplorer/projecttree.h>
#include <projectexplorer/runcontrol.h>
#include <projectexplorer/target.h>

#include <qmljs/qmljsmodelmanagerinterface.h>

#include <qmljseditor/qmljseditor.h>
#include <qmljseditor/qmljseditorconstants.h>

#include <qtsupport/qtkitaspect.h>
#include <qtsupport/qtsupportconstants.h>

#include <utils/algorithm.h>
#include <utils/fsengine/fileiconprovider.h>
#include <utils/messagebox.h>
#include <utils/mimeconstants.h>
#include <utils/qtcprocess.h>
#include <utils/qtcsettings.h>

#include <QAction>
#include <QDesktopServices>
#include <QMessageBox>
#include <QPointer>
#include <QPushButton>
#include <QTimer>
#include <QToolBar>

using namespace Core;
using namespace Debugger;
using namespace ProjectExplorer;
using namespace QmlJSEditor;
using namespace Utils;

namespace QmlProjectManager::Internal {

static bool qmlDesignerEnabled()
{
    return ExtensionSystem::PluginManager::specExistsAndIsEnabled("qmldesigner");
}

static QString alwaysOpenWithMode()
{
    return ICore::settings()
        ->value(QmlProjectManager::Constants::ALWAYS_OPEN_UI_MODE, "")
        .toString();
}

static void setAlwaysOpenWithMode(const QString &mode)
{
    ICore::settings()->setValue(QmlProjectManager::Constants::ALWAYS_OPEN_UI_MODE, mode);
}

static void clearAlwaysOpenWithMode()
{
    ICore::settings()->remove(QmlProjectManager::Constants::ALWAYS_OPEN_UI_MODE);
}

namespace {
enum class QdsMode { Lite, Full };
}

static void openQds(const FilePath &fileName, QdsMode mode)
{
    const FilePath qdsPath = qdsSettings().qdsCommand();
    bool qdsStarted = false;

    qputenv("QTC_LAUNCHED_QDS", "true");

    const QStringList modeArgument = mode == QdsMode::Lite ? QStringList("-qml-lite-designer")
                                                           : QStringList();
    qdsStarted = Process::startDetached(
        {qdsPath, modeArgument + QStringList({"-client", fileName.toUrlishString()})});

    if (!qdsStarted) {
        QMessageBox::warning(ICore::dialogParent(),
                             fileName.fileName(),
                             Tr::tr("Failed to start Qt Design Studio."));
        if (alwaysOpenWithMode() == Core::Constants::MODE_DESIGN)
            clearAlwaysOpenWithMode();
    }
}

bool qdsInstallationExists()
{
    return qdsSettings().qdsCommand().exists();
}

bool checkIfEditorIsuiQml(IEditor *editor)
{
    if (editor
        && (editor->document()->id() == ::QmlJSEditor::Constants::C_QMLJSEDITOR_ID
            || editor->document()->id() == ::QmlJSEditor::Constants::C_QTQUICKDESIGNEREDITOR_ID)) {
        QmlJS::ModelManagerInterface *modelManager = QmlJS::ModelManagerInterface::instance();
        QmlJS::Document::Ptr document = modelManager->ensuredGetDocumentForPath(
            editor->document()->filePath());
        if (!document.isNull())
            return document->language() == QmlJS::Dialect::QmlQtQuick2Ui;
    }
    return false;
}

const FilePath findQmlProject(const FilePath &folder)
{
    const FilePaths files = folder.dirEntries({QStringList("*.qmlproject"), DirFilterFlag::Files});
    if (files.isEmpty())
        return {};

    return files.constFirst();
}

const FilePath findQmlProjectUpwards(const FilePath &folder)
{
    FilePath projectFile;
    folder.searchHereAndInParents([&](const FilePath &dir) {
        projectFile = findQmlProject(dir);
        return projectFile.isEmpty() ? IterationPolicy::Continue : IterationPolicy::Stop;
    });
    return projectFile;
}

static bool findAndOpenProject(const FilePath &filePath)
{
    if (Project *project = ProjectManager::projectForFile(filePath)) {
        if (project->projectFilePath().suffix() == "qmlproject") {
            openQds(project->projectFilePath(), QdsMode::Full);
            return true;
        }
        FilePath projectFolder = project->rootProjectDirectory();
        FilePath qmlProjectFile = findQmlProject(projectFolder);
        if (qmlProjectFile.exists()) {
            openQds(qmlProjectFile, QdsMode::Full);
            return true;
        }
    }

    FilePath qmlProjectFile = findQmlProjectUpwards(filePath);
    if (qmlProjectFile.exists()) {
        openQds(qmlProjectFile, QdsMode::Full);
        return true;
    }
    return false;
}

void openInQds(const FilePath &filePath)
{
    if (findAndOpenProject(filePath)) {
        openQds(filePath, QdsMode::Full);
        //The first one might be ignored when QDS is starting up
        QTimer::singleShot(4000, [filePath] { openQds(filePath, QdsMode::Full); });
    } else {
        openQds(filePath, QdsMode::Lite);
    }
}

class ExternalDesignStudioFactory : public Core::IEditorFactory
{
public:
    ExternalDesignStudioFactory()
    {
        setId("Qt.QtDesignStudio");
        setDisplayName(Tr::tr("Qt Design Studio"));
        setMimeTypes({Utils::Constants::QMLUI_MIMETYPE});
        setEditorStarter([](const FilePath &filePath) {
            openInQds(filePath);
            return ResultOk;
        });
    }
};

void setupExternalDesignStudio()
{
    static ExternalDesignStudioFactory theExternalDesignStudioFactory;
}

class SimpleQmlProfilerRunnerFactory final : public RunWorkerFactory
{
public:
    explicit SimpleQmlProfilerRunnerFactory(const QList<Id> &runConfigs)
    {
        setId("SimpleQmlProfilerRunnerFactory");
        cloneProduct(ProjectExplorer::Constants::QML_PROFILER_RUN_FACTORY);
        addSupportedRunMode(ProjectExplorer::Constants::QML_PROFILER_RUN_MODE);
        setSupportedRunConfigs(runConfigs);
    }
};

class SimplePreviewRunnerFactory final : public RunWorkerFactory
{
public:
    explicit SimplePreviewRunnerFactory(const QList<Id> &runConfigs)
    {
        setId("SimplePreviewRunnerFactory");
        cloneProduct(ProjectExplorer::Constants::QML_PREVIEW_RUN_FACTORY);
        addSupportedRunMode(ProjectExplorer::Constants::QML_PREVIEW_RUN_MODE);
        setSupportedRunConfigs(runConfigs);
    }
};

class QmlProjectPlugin final : public ExtensionSystem::IPlugin
{
    Q_OBJECT
    Q_PLUGIN_METADATA(IID "org.qt-project.Qt.QtCreatorPlugin" FILE "QmlProjectManager.json")

public:
    ~QmlProjectPlugin() final
    {
        if (m_lastMessageBox)
            m_lastMessageBox->deleteLater();
        if (m_landingPage)
            m_landingPage->deleteLater();
        if (m_landingPageWidget)
            m_landingPageWidget->deleteLater();
    }

public slots:
    void editorModeChanged(Utils::Id newMode, Utils::Id oldMode);
    void openQtc(bool permanent = false);
    void openQds(bool permanent = false);

private:
    void initialize() final;

    void extensionsInitialized() final
    {
        // These rely on the base tool factories being present:
        static ProcessRunnerFactory runWorkerFactory{{Constants::QML_RUNCONFIG_ID}};
        static SimpleQmlProfilerRunnerFactory qmlProfilerRunWorkerFactory{{Constants::QML_RUNCONFIG_ID}};
        static SimpleDebugRunnerFactory debugRunWorkerFactory{{Constants::QML_RUNCONFIG_ID}};
        static SimplePreviewRunnerFactory previewRunWorkerFactory{{Constants::QML_RUNCONFIG_ID}};
    }

    void displayQmlLandingPage();
    void setupEditorToolButton();
    void hideQmlLandingPage();
    void updateQmlLandingPageProjectInfo(const Utils::FilePath &projectFile);

    QPointer<QMessageBox> m_lastMessageBox;
    QdsLandingPage *m_landingPage = nullptr;
    QdsLandingPageWidget *m_landingPageWidget = nullptr;
};

void QmlProjectPlugin::setupEditorToolButton()
{
    Command *cmd;
    ActionBuilder(this, "QmlProjectPlugin.OpenInQDS")
        .bindCommand(&cmd)
        .setText("Open in Qt Design Studio")
        .addOnTriggered(EditorManager::instance(), [] {
            IEditor *editor = EditorManager::currentEditor();
            if (!editor)
                return;
            if (editor->document()->mimeType() != Utils::Constants::QMLUI_MIMETYPE)
                return;
            openInQds(editor->document()->filePath());
        });
    // extend tool bar for .ui.qml file text editor
    connect(EditorManager::instance(), &EditorManager::editorOpened, this, [this, cmd](IEditor *editor) {
        if (!editor)
            return;
        if (!editor->document())
            return;
        if (editor->document()->mimeType() != Utils::Constants::QMLUI_MIMETYPE)
            return;
        auto *textEditor = qobject_cast<TextEditor::BaseTextEditor *>(editor);
        if (!textEditor)
            return;
        TextEditor::TextEditorWidget *widget = textEditor->editorWidget();
        if (!widget)
            return;
        QToolBar *toolBar = widget->toolBar();
        if (!toolBar)
            return;
        auto action = new QAction(this);
        action->setIconText("QDS");
        const auto updateQdsAction = [action] {
            if (!qdsInstallationExists()) {
                action->setText(
                    Tr::tr("Open the document in Qt Design Studio.\n\nQt Design Studio is not "
                           "configured. Configure it in Preferences > Qt Quick > QML/JS Editing."));
                action->setEnabled(false);
            } else {
                action->setText(Tr::tr("Open the document in Qt Design Studio."));
                action->setEnabled(true);
            }
        };
        updateQdsAction();
        connect(&qdsSettings(), &QdsSettings::changed, action, updateQdsAction);
        cmd->augmentActionWithShortcutToolTip(action);
        toolBar->addAction(action);
        connect(action, &QAction::triggered, editor, [editor] {
            openInQds(editor->document()->filePath());
        });
    });
}

void QmlProjectPlugin::initialize()
{
    setupQmlProjectRunConfiguration();
    setupExternalDesignStudio();

    if (!qmlDesignerEnabled()) {
        qdsSettings().setQdsSettingVisible(true);
        m_landingPage = new QdsLandingPage();
        qmlRegisterSingletonInstance<QdsLandingPage>("LandingPageApi",
                                                     1,
                                                     0,
                                                     "LandingPageApi",
                                                     m_landingPage);

        m_landingPageWidget = new QdsLandingPageWidget();

        const QStringList mimeTypes = {Utils::Constants::QMLUI_MIMETYPE};

        DesignMode::registerDesignWidget("QmlLandingPage", m_landingPageWidget, mimeTypes, {});

        connect(ModeManager::instance(), &ModeManager::currentModeChanged,
                this, &QmlProjectPlugin::editorModeChanged);

        setupEditorToolButton();
    }

    const auto issuesGenerator = [](const Kit *k) {
        Tasks result;
        const QtSupport::QtVersion *version = QtSupport::QtKitAspect::qtVersion(k);
        if (!version) {
            result.append(
                Project::createTask(Task::TaskType::Warning, Tr::tr("No Qt version set in kit.")));
        }

        IDevice::ConstPtr dev = RunDeviceKitAspect::device(k);
        if (!dev)
            result.append(Project::createTask(Task::TaskType::Error, Tr::tr("Kit has no device.")));

        if (version && version->qtVersion() < QVersionNumber(5, 0, 0))
            result.append(Project::createTask(Task::TaskType::Error, Tr::tr("Qt version is too old.")));

        if (!dev || !version)
            return result; // No need to check deeper than this

        if (dev->type() == ProjectExplorer::Constants::DESKTOP_DEVICE_TYPE) {
            if (version->type() == QtSupport::Constants::DESKTOPQT) {
                if (version->qmlRuntimeFilePath().isEmpty()) {
                    result.append(Project::createTask(Task::TaskType::Error,
                                                      Tr::tr("Qt version has no QML utility.")));
                }
            } else {
                // Non-desktop Qt on a desktop device? We don't support that.
                result.append(
                    Project::createTask(Task::TaskType::Error,
                                        Tr::tr("Non-desktop Qt is used with a desktop device.")));
            }
        } else {
            // If not a desktop device, don't check the Qt version for qml runtime binary.
            // The device is responsible for providing it and we assume qml runtime can be found
            // in $PATH if it's not explicitly given.
        }

        return result;
    };
    ProjectManager::registerProjectType<QmlProject>(Utils::Constants::QMLPROJECT_MIMETYPE,
                                                    issuesGenerator);
    setupQmlBuildConfiguration();
    FileIconProvider::registerIconOverlayForSuffix(":/qmlproject/images/qmlproject.png",
                                                   "qmlproject");
}

void QmlProjectPlugin::displayQmlLandingPage()
{
    if (!m_landingPage)
        return;

    m_landingPage->setWidget(m_landingPageWidget->widget());

    updateQmlLandingPageProjectInfo(projectFilePath());
    m_landingPage->setQdsInstalled(qdsInstallationExists());
    m_landingPage->setCmakeResources(ProjectFileContentTools::rootCmakeFiles());
    m_landingPage->show();
}

void QmlProjectPlugin::hideQmlLandingPage()
{
    if (m_landingPage)
        m_landingPage->hide();
}

static bool isDesignerMode(Id mode)
{
    return mode == Core::Constants::MODE_DESIGN;
}

void QmlProjectPlugin::editorModeChanged(Id newMode, Id oldMode)
{
    IEditor *currentEditor = EditorManager::currentEditor();
    if (checkIfEditorIsuiQml(currentEditor)) {
        if (isDesignerMode(newMode)) {
            if (alwaysOpenWithMode() == Core::Constants::MODE_DESIGN)
                openQds();
            else if (alwaysOpenWithMode() == Core::Constants::MODE_EDIT)
                openQtc();
            else
                displayQmlLandingPage();
        } else if (isDesignerMode(oldMode)) {
            hideQmlLandingPage();
        }
    }
}

void QmlProjectPlugin::openQtc(bool permanent)
{
    if (permanent)
        setAlwaysOpenWithMode(Core::Constants::MODE_EDIT);

    if (m_landingPage)
        hideQmlLandingPage();

    ModeManager::activateMode(Core::Constants::MODE_EDIT);
}

void QmlProjectPlugin::openQds(bool permanent)
{
    if (permanent)
        setAlwaysOpenWithMode(Core::Constants::MODE_DESIGN);

    if (m_landingPage)
        hideQmlLandingPage();

    if (IEditor *editor = EditorManager::currentEditor())
        openInQds(editor->document()->filePath());
}

void QmlProjectPlugin::updateQmlLandingPageProjectInfo(const FilePath &projectFile)
{
    if (!m_landingPage)
        return;

    const QString qtVersionString = ProjectFileContentTools::qtVersion(projectFile);
    const QString qdsVersionString = ProjectFileContentTools::qdsVersion(projectFile);
    m_landingPage->setProjectFileExists(projectFile.exists());
    m_landingPage->setQtVersion(qtVersionString);
    m_landingPage->setQdsVersion(qdsVersionString);
}

FilePath projectFilePath()
{
    Project *project = ProjectManager::startupProject();

    if (const QmlProject *qmlProject = qobject_cast<const QmlProject*>(project))
        return qmlProject->projectFilePath();

    if (project) {
        FilePath projectFolder = project->rootProjectDirectory();
        FilePath qmlProjectFile = findQmlProject(projectFolder);
        if (qmlProjectFile.exists())
            return qmlProjectFile;
    }

    return {};
}

} // QmlProjectManager::Internal

#include "qmlprojectplugin.moc"
