/****************************************************************************
**
** Copyright (C) 2016 The Qt Company Ltd.
** Contact: https://www.qt.io/licensing/
**
** This file is part of Qt Creator.
**
** Commercial License Usage
** Licensees holding valid commercial Qt licenses may use this file in
** accordance with the commercial license agreement provided with the
** Software or, alternatively, in accordance with the terms contained in
** a written agreement between you and The Qt Company. For licensing terms
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** information use the contact form at https://www.qt.io/contact-us.
**
** 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
** information to ensure the GNU General Public License requirements will
** be met: https://www.gnu.org/licenses/gpl-3.0.html.
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****************************************************************************/

#include "settingspage.h"
#include "qmldesignerconstants.h"
#include "qmldesignerplugin.h"
#include "designersettings.h"
#include "puppetcreator.h"
#include "ui_settingspage.h"

#include <app/app_version.h>

#include <coreplugin/icore.h>

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

#include <utils/qtcassert.h>

#include <QLineEdit>
#include <QTextStream>
#include <QMessageBox>

namespace QmlDesigner {
namespace Internal {

static QStringList puppetModes()
{
    static QStringList puppetModeList{"", "all", "editormode", "rendermode", "previewmode"};
    return puppetModeList;
}

class SettingsPageWidget final : public Core::IOptionsPageWidget
{
    Q_DECLARE_TR_FUNCTIONS(QmlDesigner::Internal::SettingsPage)

public:
    explicit SettingsPageWidget();

    void apply() final;

    DesignerSettings settings() const;
    void setSettings(const DesignerSettings &settings);

private:
    Ui::SettingsPage m_ui;
};

SettingsPageWidget::SettingsPageWidget()
{
    m_ui.setupUi(this);

    connect(m_ui.designerEnableDebuggerCheckBox, &QCheckBox::toggled, [=](bool checked) {
        if (checked && ! m_ui.designerShowDebuggerCheckBox->isChecked())
            m_ui.designerShowDebuggerCheckBox->setChecked(true);
        }
    );
    connect(m_ui.resetFallbackPuppetPathButton, &QPushButton::clicked, [=]() {
        m_ui.fallbackPuppetPathLineEdit->setPath(
            PuppetCreator::defaultPuppetFallbackDirectory());
        }
    );
    m_ui.fallbackPuppetPathLineEdit->lineEdit()->setPlaceholderText(PuppetCreator::defaultPuppetFallbackDirectory());

    connect(m_ui.resetQmlPuppetBuildPathButton, &QPushButton::clicked, [=]() {
        m_ui.puppetBuildPathLineEdit->setPath(
            PuppetCreator::defaultPuppetToplevelBuildDirectory());
        }
    );
    connect(m_ui.useDefaultPuppetRadioButton, &QRadioButton::toggled,
        m_ui.fallbackPuppetPathLineEdit, &QLineEdit::setEnabled);
    connect(m_ui.useQtRelatedPuppetRadioButton, &QRadioButton::toggled,
        m_ui.puppetBuildPathLineEdit, &QLineEdit::setEnabled);
    connect(m_ui.resetStyle, &QPushButton::clicked,
        m_ui.styleLineEdit, &QLineEdit::clear);
    connect(m_ui.controls2StyleComboBox, &QComboBox::currentTextChanged, [=]() {
            m_ui.styleLineEdit->setText(m_ui.controls2StyleComboBox->currentText());
        }
    );

    m_ui.forwardPuppetOutputComboBox->addItems(puppetModes());
    m_ui.debugPuppetComboBox->addItems(puppetModes());

    setSettings(QmlDesignerPlugin::instance()->settings());
}

DesignerSettings SettingsPageWidget::settings() const
{
    DesignerSettings settings = QmlDesignerPlugin::instance()->settings();
    settings.insert(DesignerSettingsKey::ITEMSPACING, m_ui.spinItemSpacing->value());
    settings.insert(DesignerSettingsKey::CONTAINERPADDING, m_ui.spinSnapMargin->value());
    settings.insert(DesignerSettingsKey::CANVASWIDTH, m_ui.spinCanvasWidth->value());
    settings.insert(DesignerSettingsKey::CANVASHEIGHT, m_ui.spinCanvasHeight->value());
    settings.insert(DesignerSettingsKey::ROOT_ELEMENT_INIT_WIDTH, m_ui.spinRootItemInitWidth->value());
    settings.insert(DesignerSettingsKey::ROOT_ELEMENT_INIT_HEIGHT, m_ui.spinRootItemInitHeight->value());
    settings.insert(DesignerSettingsKey::WARNING_FOR_FEATURES_IN_DESIGNER,
                    m_ui.designerWarningsCheckBox->isChecked());
    settings.insert(DesignerSettingsKey::WARNING_FOR_QML_FILES_INSTEAD_OF_UIQML_FILES,
                    m_ui.designerWarningsUiQmlfiles->isChecked());

    settings.insert(DesignerSettingsKey::WARNING_FOR_DESIGNER_FEATURES_IN_EDITOR,
        m_ui.designerWarningsInEditorCheckBox->isChecked());
    settings.insert(DesignerSettingsKey::SHOW_DEBUGVIEW,
        m_ui.designerShowDebuggerCheckBox->isChecked());
    settings.insert(DesignerSettingsKey::ENABLE_DEBUGVIEW,
        m_ui.designerEnableDebuggerCheckBox->isChecked());
    settings.insert(DesignerSettingsKey::USE_DEFAULT_PUPPET,
        m_ui.useDefaultPuppetRadioButton->isChecked());

    int typeOfQsTrFunction;

    if (m_ui.useQsTrFunctionRadioButton->isChecked())
        typeOfQsTrFunction = 0;
    else if (m_ui.useQsTrIdFunctionRadioButton->isChecked())
        typeOfQsTrFunction = 1;
    else if (m_ui.useQsTranslateFunctionRadioButton->isChecked())
        typeOfQsTrFunction = 2;
    else
        typeOfQsTrFunction = 0;

    settings.insert(DesignerSettingsKey::TYPE_OF_QSTR_FUNCTION, typeOfQsTrFunction);
    settings.insert(DesignerSettingsKey::CONTROLS_STYLE, m_ui.styleLineEdit->text());
    settings.insert(DesignerSettingsKey::FORWARD_PUPPET_OUTPUT,
        m_ui.forwardPuppetOutputComboBox->currentText());
    settings.insert(DesignerSettingsKey::DEBUG_PUPPET,
        m_ui.debugPuppetComboBox->currentText());

    QString newFallbackPuppetPath = m_ui.fallbackPuppetPathLineEdit->path();
    QTC_CHECK(PuppetCreator::defaultPuppetFallbackDirectory() ==
              m_ui.fallbackPuppetPathLineEdit->lineEdit()->placeholderText());
    if (newFallbackPuppetPath.isEmpty())
        newFallbackPuppetPath = m_ui.fallbackPuppetPathLineEdit->lineEdit()->placeholderText();
    QString oldFallbackPuppetPath = PuppetCreator::qmlPuppetFallbackDirectory(settings);

    if (oldFallbackPuppetPath != newFallbackPuppetPath && QFileInfo::exists(newFallbackPuppetPath)) {
        if (newFallbackPuppetPath == PuppetCreator::defaultPuppetFallbackDirectory())
            settings.insert(DesignerSettingsKey::PUPPET_DEFAULT_DIRECTORY, QString());
        else
            settings.insert(DesignerSettingsKey::PUPPET_DEFAULT_DIRECTORY, newFallbackPuppetPath);
    } else if (!QFileInfo::exists(oldFallbackPuppetPath) || !QFileInfo::exists(newFallbackPuppetPath)){
        settings.insert(DesignerSettingsKey::PUPPET_DEFAULT_DIRECTORY, QString());
    }

    if (!m_ui.puppetBuildPathLineEdit->path().isEmpty() &&
        m_ui.puppetBuildPathLineEdit->path() != PuppetCreator::defaultPuppetToplevelBuildDirectory()) {
        settings.insert(DesignerSettingsKey::PUPPET_TOPLEVEL_BUILD_DIRECTORY,
            m_ui.puppetBuildPathLineEdit->path());
    }
    settings.insert(DesignerSettingsKey::ALWAYS_SAVE_IN_CRUMBLEBAR,
        m_ui.alwaysSaveSubcomponentsCheckBox->isChecked());
    settings.insert(DesignerSettingsKey::SHOW_PROPERTYEDITOR_WARNINGS,
        m_ui.showPropertyEditorWarningsCheckBox->isChecked());
    settings.insert(DesignerSettingsKey::ENABLE_MODEL_EXCEPTION_OUTPUT,
        m_ui.showWarnExceptionsCheckBox->isChecked());
    settings.insert(DesignerSettingsKey::ENABLE_TIMELINEVIEW,
                    m_ui.featureTimelineEditorCheckBox->isChecked());
    settings.insert(DesignerSettingsKey::ALWAYS_DESIGN_MODE,
                    m_ui.designerAlwaysDesignModeCheckBox->isChecked());

    return settings;
}

void SettingsPageWidget::setSettings(const DesignerSettings &settings)
{
    m_ui.spinItemSpacing->setValue(settings.value(
        DesignerSettingsKey::ITEMSPACING).toInt());
    m_ui.spinSnapMargin->setValue(settings.value(
        DesignerSettingsKey::CONTAINERPADDING).toInt());
    m_ui.spinCanvasWidth->setValue(settings.value(
        DesignerSettingsKey::CANVASWIDTH).toInt());
    m_ui.spinCanvasHeight->setValue(settings.value(
        DesignerSettingsKey::CANVASHEIGHT).toInt());
    m_ui.spinRootItemInitWidth->setValue(settings.value(
        DesignerSettingsKey::ROOT_ELEMENT_INIT_WIDTH).toInt());
    m_ui.spinRootItemInitHeight->setValue(settings.value(
        DesignerSettingsKey::ROOT_ELEMENT_INIT_HEIGHT).toInt());
    m_ui.designerWarningsCheckBox->setChecked(settings.value(
        DesignerSettingsKey::WARNING_FOR_FEATURES_IN_DESIGNER).toBool());
    m_ui.designerWarningsUiQmlfiles->setChecked(settings.value(
        DesignerSettingsKey::WARNING_FOR_QML_FILES_INSTEAD_OF_UIQML_FILES).toBool());
    m_ui.designerWarningsInEditorCheckBox->setChecked(settings.value(
        DesignerSettingsKey::WARNING_FOR_DESIGNER_FEATURES_IN_EDITOR).toBool());
    m_ui.designerShowDebuggerCheckBox->setChecked(settings.value(
        DesignerSettingsKey::SHOW_DEBUGVIEW).toBool());
    m_ui.designerEnableDebuggerCheckBox->setChecked(settings.value(
        DesignerSettingsKey::ENABLE_DEBUGVIEW).toBool());
    m_ui.useDefaultPuppetRadioButton->setChecked(settings.value(
        DesignerSettingsKey::USE_DEFAULT_PUPPET).toBool());
    m_ui.useQtRelatedPuppetRadioButton->setChecked(!settings.value(
        DesignerSettingsKey::USE_DEFAULT_PUPPET).toBool());
    m_ui.useQsTrFunctionRadioButton->setChecked(settings.value(
        DesignerSettingsKey::TYPE_OF_QSTR_FUNCTION).toInt() == 0);
    m_ui.useQsTrIdFunctionRadioButton->setChecked(settings.value(
        DesignerSettingsKey::TYPE_OF_QSTR_FUNCTION).toInt() == 1);
    m_ui.useQsTranslateFunctionRadioButton->setChecked(settings.value(
        DesignerSettingsKey::TYPE_OF_QSTR_FUNCTION).toInt() == 2);
    m_ui.styleLineEdit->setText(settings.value(
        DesignerSettingsKey::CONTROLS_STYLE).toString());

    QString puppetFallbackDirectory = settings.value(
        DesignerSettingsKey::PUPPET_DEFAULT_DIRECTORY,
        PuppetCreator::defaultPuppetFallbackDirectory()).toString();
    m_ui.fallbackPuppetPathLineEdit->setPath(puppetFallbackDirectory);

    QString puppetToplevelBuildDirectory = settings.value(
        DesignerSettingsKey::PUPPET_TOPLEVEL_BUILD_DIRECTORY,
        PuppetCreator::defaultPuppetToplevelBuildDirectory()).toString();
    m_ui.puppetBuildPathLineEdit->setPath(puppetToplevelBuildDirectory);

    m_ui.forwardPuppetOutputComboBox->setCurrentText(settings.value(
        DesignerSettingsKey::FORWARD_PUPPET_OUTPUT).toString());
    m_ui.debugPuppetComboBox->setCurrentText(settings.value(
        DesignerSettingsKey::DEBUG_PUPPET).toString());

    m_ui.alwaysSaveSubcomponentsCheckBox->setChecked(settings.value(
        DesignerSettingsKey::ALWAYS_SAVE_IN_CRUMBLEBAR).toBool());
    m_ui.showPropertyEditorWarningsCheckBox->setChecked(settings.value(
        DesignerSettingsKey::SHOW_PROPERTYEDITOR_WARNINGS).toBool());
    m_ui.showWarnExceptionsCheckBox->setChecked(settings.value(
        DesignerSettingsKey::ENABLE_MODEL_EXCEPTION_OUTPUT).toBool());

    m_ui.controls2StyleComboBox->setCurrentText(m_ui.styleLineEdit->text());

    m_ui.designerAlwaysDesignModeCheckBox->setChecked(settings.value(
        DesignerSettingsKey::ALWAYS_DESIGN_MODE).toBool());
    m_ui.featureTimelineEditorCheckBox->setChecked(settings.value(
        DesignerSettingsKey::ENABLE_TIMELINEVIEW).toBool());

    if (settings.value(DesignerSettingsKey::STANDALONE_MODE).toBool()) {
        m_ui.emulationGroupBox->hide();
        m_ui.debugGroupBox->hide();
        m_ui.featureTimelineEditorCheckBox->hide();
    }
}

void SettingsPageWidget::apply()
{
    DesignerSettings currentSettings(QmlDesignerPlugin::instance()->settings());
    DesignerSettings newSettings = settings();

    const auto restartNecessaryKeys = {
      DesignerSettingsKey::PUPPET_DEFAULT_DIRECTORY,
      DesignerSettingsKey::PUPPET_TOPLEVEL_BUILD_DIRECTORY,
      DesignerSettingsKey::ENABLE_MODEL_EXCEPTION_OUTPUT,
      DesignerSettingsKey::PUPPET_KILL_TIMEOUT,
      DesignerSettingsKey::FORWARD_PUPPET_OUTPUT,
      DesignerSettingsKey::DEBUG_PUPPET,
      DesignerSettingsKey::ENABLE_MODEL_EXCEPTION_OUTPUT,
      DesignerSettingsKey::ENABLE_TIMELINEVIEW
    };

    for (const QByteArray &key : restartNecessaryKeys) {
        if (currentSettings.value(key) != newSettings.value(key)) {
            QMessageBox::information(Core::ICore::dialogParent(), tr("Restart Required"),
                tr("The made changes will take effect after a "
                   "restart of the QML Emulation layer or %1.")
                .arg(Core::Constants::IDE_DISPLAY_NAME));
            break;
        }
    }

    QmlDesignerPlugin::instance()->setSettings(newSettings);
}

SettingsPage::SettingsPage()
{
    setId("B.QmlDesigner");
    setDisplayName(SettingsPageWidget::tr("Qt Quick Designer"));
    setCategory(QmlJSEditor::Constants::SETTINGS_CATEGORY_QML);
    setWidgetCreator([] { return new SettingsPageWidget; });
}

} // Internal
} // QmlDesigner