/*
  ==============================================================================

   This file is part of the JUCE 6 technical preview.
   Copyright (c) 2017 - ROLI Ltd.

   You may use this code under the terms of the GPL v3
   (see www.gnu.org/licenses).

   For this technical preview, this file is not subject to commercial licensing.

   JUCE IS PROVIDED "AS IS" WITHOUT ANY WARRANTY, AND ALL WARRANTIES, WHETHER
   EXPRESSED OR IMPLIED, INCLUDING MERCHANTABILITY AND FITNESS FOR PURPOSE, ARE
   DISCLAIMED.

  ==============================================================================
*/

#include "../../Application/jucer_Headers.h"
#include "jucer_ProjectContentComponent.h"
#include "../../LiveBuildEngine/jucer_DownloadCompileEngineThread.h"
#include "../../LiveBuildEngine/jucer_CompileEngineSettings.h"

#include "jucer_HeaderComponent.h"
#include "Sidebar/jucer_TabComponents.h"
#include "Sidebar/jucer_ProjectTab.h"
#include "Sidebar/jucer_LiveBuildTab.h"

//==============================================================================
struct LogoComponent  : public Component
{
    LogoComponent()
    {
        if (auto svg = parseXML (BinaryData::background_logo_svg))
            logo = Drawable::createFromSVG (*svg);
        else
            jassertfalse;
    }

    void paint (Graphics& g) override
    {
        g.setColour (findColour (defaultTextColourId));

        auto r = getLocalBounds();

        g.setFont (15.0f);
        g.drawFittedText (getVersionInfo(), r.removeFromBottom (50), Justification::centredBottom, 3);

        logo->drawWithin (g, r.withTrimmedBottom (r.getHeight() / 4).toFloat(),
                          RectanglePlacement (RectanglePlacement::centred), 1.0f);
    }

    static String getVersionInfo()
    {
        return SystemStats::getJUCEVersion()
                + newLine
                + ProjucerApplication::getApp().getVersionDescription();
    }

    std::unique_ptr<Drawable> logo;
};

//==============================================================================
ProjectContentComponent::ProjectContentComponent()
{
    setOpaque (true);
    setWantsKeyboardFocus (true);

    logo.reset (new LogoComponent());
    addAndMakeVisible (logo.get());

    header.reset (new HeaderComponent());
    addAndMakeVisible (header.get());

    fileNameLabel.reset (new Label());
    addAndMakeVisible (fileNameLabel.get());
    fileNameLabel->setJustificationType (Justification::centred);

    sidebarSizeConstrainer.setMinimumWidth (200);
    sidebarSizeConstrainer.setMaximumWidth (500);

    sidebarTabs.setOutline (0);
    sidebarTabs.getTabbedButtonBar().setMinimumTabScaleFactor (0.5);

    ProjucerApplication::getApp().openDocumentManager.addListener (this);

    Desktop::getInstance().addFocusChangeListener (this);
    startTimer (1600);
}

ProjectContentComponent::~ProjectContentComponent()
{
    Desktop::getInstance().removeFocusChangeListener (this);
    killChildProcess();

    ProjucerApplication::getApp().openDocumentManager.removeListener (this);

    logo.reset();
    header.reset();
    setProject (nullptr);
    contentView.reset();
    fileNameLabel.reset();
    removeChildComponent (&bubbleMessage);
    jassert (getNumChildComponents() <= 1);
}

void ProjectContentComponent::paint (Graphics& g)
{
    g.fillAll (findColour (backgroundColourId));
}

void ProjectContentComponent::resized()
{
    auto r = getLocalBounds();

    r.removeFromRight (10);
    r.removeFromLeft (15);
    r.removeFromBottom (40);
    r.removeFromTop (5);

    if (header != nullptr)
        header->setBounds (r.removeFromTop (40));

    r.removeFromTop (10);

    auto sidebarArea = r.removeFromLeft (sidebarTabs.getWidth() != 0 ? sidebarTabs.getWidth()
                                                                     : r.getWidth() / 4);

    if (sidebarTabs.isVisible())
        sidebarTabs.setBounds (sidebarArea);

    if (resizerBar != nullptr)
        resizerBar->setBounds (r.withWidth (4));

    if (auto* h = dynamic_cast<HeaderComponent*> (header.get()))
        h->sidebarTabsWidthChanged (sidebarTabs.getWidth());

    if (contentView != nullptr)
    {
        if (fileNameLabel != nullptr && fileNameLabel->isVisible())
            fileNameLabel->setBounds (r.removeFromTop (15));

        contentView->setBounds (r);
    }

    if (logo != nullptr)
        logo->setBounds (r.reduced (r.getWidth() / 6, r.getHeight() / 6));
}

void ProjectContentComponent::lookAndFeelChanged()
{
    repaint();

    if (translationTool != nullptr)
        translationTool->repaint();
}

void ProjectContentComponent::childBoundsChanged (Component* child)
{
    if (child == &sidebarTabs)
        resized();
}

void ProjectContentComponent::setProject (Project* newProject)
{
    if (project != newProject)
    {
        lastCrashMessage = String();
        killChildProcess();

        if (project != nullptr)
            project->removeChangeListener (this);

        contentView.reset();
        resizerBar.reset();

        deleteProjectTabs();
        project = newProject;

        if (project != nullptr)
            rebuildProjectTabs();
    }
}

//==============================================================================
static LiveBuildTab* findBuildTab (const TabbedComponent& tabs)
{
    return dynamic_cast<LiveBuildTab*> (tabs.getTabContentComponent (1));
}

bool ProjectContentComponent::isBuildTabEnabled() const
{
    auto bt = findBuildTab (sidebarTabs);

    return bt != nullptr && bt->isEnabled;
}

void ProjectContentComponent::createProjectTabs()
{
    jassert (project != nullptr);

    auto tabColour = Colours::transparentBlack;

    auto* pTab = new ProjectTab (project);
    sidebarTabs.addTab ("Project", tabColour, pTab, true);

    CompileEngineChildProcess::Ptr childProc (getChildProcess());

    sidebarTabs.addTab ("Build", tabColour, new LiveBuildTab (childProc, lastCrashMessage), true);

    if (childProc != nullptr)
    {
        childProc->crashHandler = [this] (const String& m) { this->handleCrash (m); };

        sidebarTabs.getTabbedButtonBar().getTabButton (1)->setExtraComponent (new BuildStatusTabComp (childProc->errorList,
                                                                                                      childProc->activityList),
                                                                                                      TabBarButton::afterText);
    }
}

void ProjectContentComponent::deleteProjectTabs()
{
    if (project != nullptr && sidebarTabs.getNumTabs() > 0)
    {
        auto& settings = project->getStoredProperties();

        if (sidebarTabs.getWidth() > 0)
            settings.setValue ("projectPanelWidth", sidebarTabs.getWidth());

        settings.setValue ("lastViewedTabIndex", sidebarTabs.getCurrentTabIndex());

        for (int i = 0; i < 3; ++i)
            settings.setValue ("projectTabPanelHeight" + String (i),
                               getProjectTab()->getPanelHeightProportion (i));
    }

    sidebarTabs.clearTabs();
}

void ProjectContentComponent::rebuildProjectTabs()
{
    deleteProjectTabs();

    if (project != nullptr)
    {
        addAndMakeVisible (sidebarTabs);
        createProjectTabs();

        //==============================================================================
        auto& settings = project->getStoredProperties();

        auto lastTreeWidth = settings.getValue ("projectPanelWidth").getIntValue();
        if (lastTreeWidth < 150)
            lastTreeWidth = 240;

        sidebarTabs.setBounds (0, 0, lastTreeWidth, getHeight());

        sidebarTabs.setCurrentTabIndex (settings.getValue ("lastViewedTabIndex", "0").getIntValue());

        auto* projectTab = getProjectTab();
        for (int i = 2; i >= 0; --i)
            projectTab->setPanelHeightProportion (i, settings.getValue ("projectTabPanelHeight" + String (i), "1")
                                                             .getFloatValue());

        //==============================================================================
        resizerBar.reset (new ResizableEdgeComponent (&sidebarTabs, &sidebarSizeConstrainer,
                                                      ResizableEdgeComponent::rightEdge));
        addAndMakeVisible (resizerBar.get());
        resizerBar->setAlwaysOnTop (true);

        project->addChangeListener (this);

        updateMissingFileStatuses();

        if (auto* h = dynamic_cast<HeaderComponent*> (header.get()))
        {
            h->setVisible (true);
            h->setCurrentProject (project);
        }
    }
    else
    {
        sidebarTabs.setVisible (false);
        header->setVisible (false);
    }

    resized();
}

void ProjectContentComponent::saveTreeViewState()
{
}

void ProjectContentComponent::saveOpenDocumentList()
{
    if (project != nullptr)
    {
        std::unique_ptr<XmlElement> xml (recentDocumentList.createXML());

        if (xml != nullptr)
            project->getStoredProperties().setValue ("lastDocs", xml.get());
    }
}

void ProjectContentComponent::reloadLastOpenDocuments()
{
    if (project != nullptr)
    {
        if (auto xml = project->getStoredProperties().getXmlValue ("lastDocs"))
        {
            recentDocumentList.restoreFromXML (*project, *xml);
            showDocument (recentDocumentList.getCurrentDocument(), true);
        }
    }
}

bool ProjectContentComponent::documentAboutToClose (OpenDocumentManager::Document* document)
{
    hideDocument (document);
    return true;
}

void ProjectContentComponent::changeListenerCallback (ChangeBroadcaster*)
{
    updateMissingFileStatuses();
}

void ProjectContentComponent::refreshProjectTreeFileStatuses()
{
    if (auto* projectTab = getProjectTab())
        if (auto* fileTree = projectTab->getFileTreePanel())
            fileTree->repaint();
}

void ProjectContentComponent::updateMissingFileStatuses()
{
    if (auto* pTab = getProjectTab())
        if (auto* tree = pTab->getFileTreePanel())
            tree->updateMissingFileStatuses();
}

bool ProjectContentComponent::showEditorForFile (const File& f, bool grabFocus)
{
    if (getCurrentFile() == f
            || showDocument (ProjucerApplication::getApp().openDocumentManager.openFile (project, f), grabFocus))
    {
        fileNameLabel->setText (f.getFileName(), dontSendNotification);

        return true;
    }

    return false;
}

bool ProjectContentComponent::hasFileInRecentList (const File& f) const
{
    return recentDocumentList.contains (f);
}

File ProjectContentComponent::getCurrentFile() const
{
    return currentDocument != nullptr ? currentDocument->getFile()
                                      : File();
}

bool ProjectContentComponent::showDocument (OpenDocumentManager::Document* doc, bool grabFocus)
{
    if (doc == nullptr)
        return false;

    if (doc->hasFileBeenModifiedExternally())
        doc->reloadFromFile();

    if (doc == getCurrentDocument() && contentView != nullptr)
    {
        if (grabFocus)
            contentView->grabKeyboardFocus();

        return true;
    }

    recentDocumentList.newDocumentOpened (doc);

    auto opened = setEditorComponent (doc->createEditor(), doc);

    if (opened && grabFocus && isShowing())
        contentView->grabKeyboardFocus();

    return opened;
}

void ProjectContentComponent::hideEditor()
{
    currentDocument = nullptr;
    contentView.reset();

    if (fileNameLabel != nullptr)
        fileNameLabel->setVisible (false);

    ProjucerApplication::getCommandManager().commandStatusChanged();
    resized();
}

void ProjectContentComponent::hideDocument (OpenDocumentManager::Document* doc)
{
    if (doc == currentDocument)
    {
        if (auto* replacement = recentDocumentList.getClosestPreviousDocOtherThan (doc))
            showDocument (replacement, true);
        else
            hideEditor();
    }
}

bool ProjectContentComponent::setEditorComponent (Component* editor,
                                                  OpenDocumentManager::Document* doc)
{
    if (editor != nullptr)
    {
        contentView.reset();

        if (doc == nullptr)
        {
            auto* viewport = new ContentViewport (editor);

            contentView.reset (viewport);
            currentDocument = nullptr;
            fileNameLabel->setVisible (false);

            addAndMakeVisible (viewport);
        }
        else
        {
            contentView.reset (editor);
            currentDocument = doc;
            fileNameLabel->setText (doc->getFile().getFileName(), dontSendNotification);
            fileNameLabel->setVisible (true);

            addAndMakeVisible (editor);
        }

        resized();

        ProjucerApplication::getCommandManager().commandStatusChanged();
        return true;
    }

    return false;
}

Component* ProjectContentComponent::getEditorComponentContent() const
{
    if (contentView != nullptr)
        if (auto* vp = dynamic_cast<ContentViewport*> (contentView.get()))
            return vp->viewport.getViewedComponent();

    return nullptr;
}

void ProjectContentComponent::closeDocument()
{
    if (currentDocument != nullptr)
        ProjucerApplication::getApp().openDocumentManager.closeDocument (currentDocument, true);
    else if (contentView != nullptr)
        if (! goToPreviousFile())
            hideEditor();
}

static void showSaveWarning (OpenDocumentManager::Document* currentDocument)
{
    AlertWindow::showMessageBox (AlertWindow::WarningIcon,
                                 TRANS("Save failed!"),
                                 TRANS("Couldn't save the file:")
                                   + "\n" + currentDocument->getFile().getFullPathName());
}

void ProjectContentComponent::saveDocument()
{
    if (currentDocument != nullptr)
    {
        if (! currentDocument->save())
            showSaveWarning (currentDocument);

        refreshProjectTreeFileStatuses();
    }
    else
    {
        saveProject();
    }
}

void ProjectContentComponent::saveAs()
{
    if (currentDocument != nullptr)
    {
        if (! currentDocument->saveAs())
            showSaveWarning (currentDocument);

        refreshProjectTreeFileStatuses();
    }
}

bool ProjectContentComponent::goToPreviousFile()
{
    auto* doc = recentDocumentList.getCurrentDocument();

    if (doc == nullptr || doc == getCurrentDocument())
        doc = recentDocumentList.getPrevious();

    return showDocument (doc, true);
}

bool ProjectContentComponent::goToNextFile()
{
    return showDocument (recentDocumentList.getNext(), true);
}

bool ProjectContentComponent::canGoToCounterpart() const
{
    return currentDocument != nullptr
            && currentDocument->getCounterpartFile().exists();
}

bool ProjectContentComponent::goToCounterpart()
{
    if (currentDocument != nullptr)
    {
        auto file = currentDocument->getCounterpartFile();

        if (file.exists())
            return showEditorForFile (file, true);
    }

    return false;
}

bool ProjectContentComponent::saveProject (bool shouldWait, bool openInIDE)
{
    if (project != nullptr)
    {
        const ScopedValueSetter<bool> valueSetter (project->shouldWaitAfterSaving, shouldWait, false);
        project->setOpenInIDEAfterSaving (openInIDE);

        return (project->save (true, true) == FileBasedDocument::savedOk);
    }

    return false;
}

void ProjectContentComponent::closeProject()
{
    if (auto* mw = findParentComponentOfClass<MainWindow>())
        mw->closeCurrentProject (true);
}

void ProjectContentComponent::showProjectSettings()
{
    setEditorComponent (new ProjectSettingsComponent (*project), nullptr);
}

void ProjectContentComponent::showCurrentExporterSettings()
{
    if (auto* h = dynamic_cast<HeaderComponent*> (header.get()))
        showExporterSettings (h->getSelectedExporterName());
}

void ProjectContentComponent::showExporterSettings (const String& exporterName)
{
    if (exporterName.isEmpty())
        return;

    showExportersPanel();

    if (auto* exportersPanel = getProjectTab()->getExportersTreePanel())
    {
        if (auto* exporters = dynamic_cast<TreeItemTypes::ExportersTreeRoot*>(exportersPanel->rootItem.get()))
        {
            for (auto i = exporters->getNumSubItems(); i >= 0; --i)
            {
                if (auto* e = dynamic_cast<TreeItemTypes::ExporterItem*> (exporters->getSubItem (i)))
                {
                    if (e->getDisplayName() == exporterName)
                    {
                        if (e->isSelected())
                            e->setSelected (false, true);

                        e->setSelected (true, true);
                    }
                }
            }
        }
    }
}

void ProjectContentComponent::showModule (const String& moduleID)
{
    showModulesPanel();

    if (auto* modsPanel = getProjectTab()->getModuleTreePanel())
    {
        if (auto* mods = dynamic_cast<TreeItemTypes::EnabledModulesItem*> (modsPanel->rootItem.get()))
        {
            for (auto i = mods->getNumSubItems(); --i >= 0;)
            {
                if (auto* m = dynamic_cast<TreeItemTypes::ModuleItem*> (mods->getSubItem (i)))
                {
                    if (m->moduleID == moduleID)
                    {
                        if (m->isSelected())
                            m->setSelected (false, true);

                        m->setSelected (true, true);
                    }
                }
            }
        }
    }
}

void ProjectContentComponent::showLiveBuildSettings()
{
    setEditorComponent (new LiveBuildSettingsComponent (*project), nullptr);
}

StringArray ProjectContentComponent::getExportersWhichCanLaunch() const
{
    StringArray s;

    if (project != nullptr)
        for (Project::ExporterIterator exporter (*project); exporter.next();)
            if (exporter->canLaunchProject())
                s.add (exporter->getName());

    return s;
}

void ProjectContentComponent::openInSelectedIDE (bool saveFirst)
{
    if (project != nullptr)
    {
        if (auto* headerComp = dynamic_cast<HeaderComponent*> (header.get()))
        {
            auto selectedIDE = headerComp->getSelectedExporterName();

            for (Project::ExporterIterator exporter (*project); exporter.next();)
            {
                if (exporter->canLaunchProject() && exporter->getName().contains (selectedIDE))
                {
                    auto tempProject = project->isTemporaryProject(); // store this before saving as it will always be false after

                    if (saveFirst && ! saveProject (exporter->isXcode(), true))
                        return;

                    if (tempProject)
                        return;

                    exporter->launchProject();
                    return;
                }
            }
        }
    }
}

static void newExporterMenuCallback (int result, ProjectContentComponent* comp)
{
    if (comp != nullptr && result > 0)
    {
        if (auto* p = comp->getProject())
        {
            auto exporterName= ProjectExporter::getExporterNames() [result - 1];

            if (exporterName.isNotEmpty())
                p->addNewExporter (exporterName);
        }
    }
}

void ProjectContentComponent::showNewExporterMenu()
{
    if (project != nullptr)
    {
        PopupMenu menu;

        menu.addSectionHeader ("Create a new export target:");

        auto exporters = ProjectExporter::getExporterTypes();

        for (int i = 0; i < exporters.size(); ++i)
        {
            auto& type = exporters.getReference(i);

            menu.addItem (i + 1, type.name, true, false, type.getIcon());
        }

        menu.showMenuAsync (PopupMenu::Options(),
                            ModalCallbackFunction::forComponent (newExporterMenuCallback, this));
    }
}

void ProjectContentComponent::deleteSelectedTreeItems()
{
    if (auto*  tree = getProjectTab()->getTreeWithSelectedItems())
        tree->deleteSelectedItems();
}

void ProjectContentComponent::showBubbleMessage (Rectangle<int> pos, const String& text)
{
    addChildComponent (bubbleMessage);
    bubbleMessage.setColour (BubbleComponent::backgroundColourId, Colours::white.withAlpha (0.7f));
    bubbleMessage.setColour (BubbleComponent::outlineColourId, Colours::black.withAlpha (0.8f));
    bubbleMessage.setAlwaysOnTop (true);

    bubbleMessage.showAt (pos, AttributedString (text), 3000, true, false);
}

//==============================================================================
void ProjectContentComponent::showTranslationTool()
{
    if (translationTool != nullptr)
    {
        translationTool->toFront (true);
    }
    else if (project != nullptr)
    {
        new FloatingToolWindow ("Translation File Builder",
                                "transToolWindowPos",
                                new TranslationToolComponent(),
                                translationTool, true,
                                600, 700,
                                600, 400, 10000, 10000);
    }
}

//==============================================================================
struct AsyncCommandRetrier  : public Timer
{
    AsyncCommandRetrier (const ApplicationCommandTarget::InvocationInfo& i)  : info (i)
    {
        info.originatingComponent = nullptr;
        startTimer (500);
    }

    void timerCallback() override
    {
        stopTimer();
        ProjucerApplication::getCommandManager().invoke (info, true);
        delete this;
    }

    ApplicationCommandTarget::InvocationInfo info;

    JUCE_DECLARE_NON_COPYABLE (AsyncCommandRetrier)
};

static bool reinvokeCommandAfterCancellingModalComps (const ApplicationCommandTarget::InvocationInfo& info)
{
    if (ModalComponentManager::getInstance()->cancelAllModalComponents())
    {
        new AsyncCommandRetrier (info);
        return true;
    }

    return false;
}

//==============================================================================
ApplicationCommandTarget* ProjectContentComponent::getNextCommandTarget()
{
    return findFirstTargetParentComponent();
}

void ProjectContentComponent::getAllCommands (Array <CommandID>& commands)
{
    commands.addArray ({ CommandIDs::saveProject,
                         CommandIDs::closeProject,
                         CommandIDs::saveDocument,
                         CommandIDs::saveDocumentAs,
                         CommandIDs::closeDocument,
                         CommandIDs::goToPreviousDoc,
                         CommandIDs::goToNextDoc,
                         CommandIDs::goToCounterpart,
                         CommandIDs::showProjectSettings,
                         CommandIDs::showProjectTab,
                         CommandIDs::showBuildTab,
                         CommandIDs::showFileExplorerPanel,
                         CommandIDs::showModulesPanel,
                         CommandIDs::showExportersPanel,
                         CommandIDs::showExporterSettings,
                         CommandIDs::openInIDE,
                         CommandIDs::saveAndOpenInIDE,
                         CommandIDs::createNewExporter,
                         CommandIDs::deleteSelectedItem,
                         CommandIDs::showTranslationTool,
                         CommandIDs::cleanAll,
                         CommandIDs::toggleBuildEnabled,
                         CommandIDs::buildNow,
                         CommandIDs::toggleContinuousBuild,
                         CommandIDs::launchApp,
                         CommandIDs::killApp,
                         CommandIDs::reinstantiateComp,
                         CommandIDs::showWarnings,
                         CommandIDs::nextError,
                         CommandIDs::prevError });
}

void ProjectContentComponent::getCommandInfo (const CommandID commandID, ApplicationCommandInfo& result)
{
    String documentName;
    if (currentDocument != nullptr)
        documentName = " '" + currentDocument->getName().substring (0, 32) + "'";

   #if JUCE_MAC
    auto cmdCtrl = (ModifierKeys::ctrlModifier | ModifierKeys::commandModifier);
   #else
    auto cmdCtrl = (ModifierKeys::ctrlModifier | ModifierKeys::altModifier);
   #endif

    switch (commandID)
    {
    case CommandIDs::saveProject:
        result.setInfo ("Save Project",
                        "Saves the current project",
                        CommandCategories::general, 0);
        result.setActive (project != nullptr && ! project->isCurrentlySaving());
        result.defaultKeypresses.add ({ 'p', ModifierKeys::commandModifier, 0 });
        break;

    case CommandIDs::closeProject:
        result.setInfo ("Close Project",
                        "Closes the current project",
                        CommandCategories::general, 0);
        result.setActive (project != nullptr);
        break;

    case CommandIDs::saveDocument:
        result.setInfo ("Save" + documentName,
                        "Saves the current document",
                        CommandCategories::general, 0);
        result.setActive (currentDocument != nullptr || (project != nullptr && ! project->isCurrentlySaving()));
        result.defaultKeypresses.add ({ 's', ModifierKeys::commandModifier, 0 });
        break;

    case CommandIDs::saveDocumentAs:
        result.setInfo ("Save As...",
                        "Saves the current document to a new location",
                        CommandCategories::general, 0);
        result.setActive (currentDocument != nullptr);
        result.defaultKeypresses.add ({ 's', ModifierKeys::commandModifier | ModifierKeys::shiftModifier, 0 });
        break;

    case CommandIDs::closeDocument:
        result.setInfo ("Close" + documentName,
                        "Closes the current document",
                        CommandCategories::general, 0);
        result.setActive (contentView != nullptr);
        result.defaultKeypresses.add ({ 'w', cmdCtrl, 0 });
        break;

    case CommandIDs::goToPreviousDoc:
        result.setInfo ("Previous Document",
                        "Go to previous document",
                        CommandCategories::general, 0);
        result.setActive (recentDocumentList.canGoToPrevious());
        result.defaultKeypresses.add ({ KeyPress::leftKey, cmdCtrl, 0 });
        break;

    case CommandIDs::goToNextDoc:
        result.setInfo ("Next Document",
                        "Go to next document",
                        CommandCategories::general, 0);
        result.setActive (recentDocumentList.canGoToNext());
        result.defaultKeypresses.add ({ KeyPress::rightKey, cmdCtrl, 0 });
        break;

    case CommandIDs::goToCounterpart:
        result.setInfo ("Open Counterpart File",
                        "Open corresponding header or cpp file",
                        CommandCategories::general, 0);
        result.setActive (canGoToCounterpart());
        result.defaultKeypresses.add ({ KeyPress::upKey, cmdCtrl, 0 });
        break;

    case CommandIDs::showProjectSettings:
        result.setInfo ("Show Project Settings",
                        "Shows the main project options page",
                        CommandCategories::general, 0);
        result.setActive (project != nullptr);
        result.defaultKeypresses.add ({ 'x', cmdCtrl, 0 });
        break;

    case CommandIDs::showProjectTab:
        result.setInfo ("Show Project Tab",
                        "Shows the tab containing the project information",
                        CommandCategories::general, 0);
        result.setActive (project != nullptr);
        result.defaultKeypresses.add ({ 'p', cmdCtrl, 0 });
        break;

    case CommandIDs::showBuildTab:
        result.setInfo ("Show Build Tab",
                        "Shows the tab containing the build panel",
                        CommandCategories::general, 0);
        result.setActive (project != nullptr);
        result.defaultKeypresses.add ({ 'b', cmdCtrl, 0 });
        break;

    case CommandIDs::showFileExplorerPanel:
        result.setInfo ("Show File Explorer Panel",
                        "Shows the panel containing the tree of files for this project",
                        CommandCategories::general, 0);
        result.setActive (project != nullptr);
        result.defaultKeypresses.add ({ 'f', cmdCtrl, 0 });
        break;

    case CommandIDs::showModulesPanel:
        result.setInfo ("Show Modules Panel",
                        "Shows the panel containing the project's list of modules",
                        CommandCategories::general, 0);
        result.setActive (project != nullptr);
        result.defaultKeypresses.add ({ 'm', cmdCtrl, 0 });
        break;

    case CommandIDs::showExportersPanel:
        result.setInfo ("Show Exporters Panel",
                        "Shows the panel containing the project's list of exporters",
                        CommandCategories::general, 0);
        result.setActive (project != nullptr);
        result.defaultKeypresses.add ({ 'e', cmdCtrl, 0 });
        break;

    case CommandIDs::showExporterSettings:
        result.setInfo ("Show Exporter Settings",
                        "Shows the settings page for the currently selected exporter",
                        CommandCategories::general, 0);
        result.setActive (project != nullptr);
        result.defaultKeypresses.add ({ 'e', ModifierKeys::commandModifier | ModifierKeys::shiftModifier, 0 });
        break;

    case CommandIDs::openInIDE:
        result.setInfo ("Open in IDE...",
                        "Launches the project in an external IDE",
                        CommandCategories::general, 0);
        result.setActive (ProjectExporter::canProjectBeLaunched (project));
        break;

    case CommandIDs::saveAndOpenInIDE:
        result.setInfo ("Save Project and Open in IDE...",
                        "Saves the project and launches it in an external IDE",
                        CommandCategories::general, 0);
        result.setActive (ProjectExporter::canProjectBeLaunched (project) && ! project->isCurrentlySaving());
        result.defaultKeypresses.add ({ 'l', ModifierKeys::commandModifier | ModifierKeys::shiftModifier, 0 });
        break;

    case CommandIDs::createNewExporter:
        result.setInfo ("Create New Exporter...",
                        "Creates a new exporter for a compiler type",
                        CommandCategories::general, 0);
        result.setActive (project != nullptr);
        break;

    case CommandIDs::deleteSelectedItem:
        result.setInfo ("Delete Selected File",
                        String(),
                        CommandCategories::general, 0);
        result.defaultKeypresses.add ({ KeyPress::deleteKey, 0, 0 });
        result.defaultKeypresses.add ({ KeyPress::backspaceKey, 0, 0 });
        result.setActive (sidebarTabs.getCurrentTabIndex() == 0);
        break;

    case CommandIDs::showTranslationTool:
        result.setInfo ("Translation File Builder",
                        "Shows the translation file helper tool",
                        CommandCategories::general, 0);
        break;

    case CommandIDs::cleanAll:
        result.setInfo ("Clean All",
                        "Cleans all intermediate files",
                        CommandCategories::general, 0);
        result.defaultKeypresses.add ({ 'k', ModifierKeys::commandModifier | ModifierKeys::shiftModifier, 0 });
        result.setActive (project != nullptr);
        break;

    case CommandIDs::toggleBuildEnabled:
        result.setInfo ("Enable Compilation",
                        "Enables/disables the compiler",
                        CommandCategories::general, 0);
        result.defaultKeypresses.add ({ 'b', ModifierKeys::commandModifier | ModifierKeys::shiftModifier, 0 });
        result.setActive (project != nullptr);
        result.setTicked (childProcess != nullptr);
        break;

    case CommandIDs::buildNow:
        result.setInfo ("Build Now",
                        "Recompiles any out-of-date files and updates the JIT engine",
                        CommandCategories::general, 0);
        result.defaultKeypresses.add ({ 'b', ModifierKeys::commandModifier, 0 });
        result.setActive (childProcess != nullptr);
        break;

    case CommandIDs::toggleContinuousBuild:
        result.setInfo ("Enable Continuous Recompiling",
                        "Continuously recompiles any changes made in code editors",
                        CommandCategories::general, 0);
        result.setActive (childProcess != nullptr);
        result.setTicked (isContinuousRebuildEnabled());
        break;

    case CommandIDs::launchApp:
        result.setInfo ("Launch Application",
                        "Invokes the app's main() function",
                        CommandCategories::general, 0);
        result.defaultKeypresses.add ({ 'r', ModifierKeys::commandModifier, 0 });
        result.setActive (childProcess != nullptr && childProcess->canLaunchApp());
        break;

    case CommandIDs::killApp:
        result.setInfo ("Stop Application",
                        "Kills the app if it's running",
                        CommandCategories::general, 0);
        result.defaultKeypresses.add ({ '.', ModifierKeys::commandModifier, 0 });
        result.setActive (childProcess != nullptr && childProcess->canKillApp());
        break;

    case CommandIDs::reinstantiateComp:
        result.setInfo ("Re-instantiate Components",
                        "Re-loads any component editors that are open",
                        CommandCategories::general, 0);
        result.defaultKeypresses.add ({ 'r', ModifierKeys::commandModifier | ModifierKeys::shiftModifier, 0 });
        result.setActive (childProcess != nullptr);
        break;

    case CommandIDs::showWarnings:
        result.setInfo ("Show Warnings",
                        "Shows or hides compilation warnings",
                        CommandCategories::general, 0);
        result.setActive (project != nullptr);
        result.setTicked (areWarningsEnabled());
        break;

    case CommandIDs::nextError:
        result.setInfo ("Highlight next error",
                        "Jumps to the next error or warning",
                        CommandCategories::general, 0);
        result.defaultKeypresses.add ({ '\'', ModifierKeys::commandModifier, 0 });
        result.setActive (childProcess != nullptr && ! childProcess->errorList.isEmpty());
        break;

    case CommandIDs::prevError:
        result.setInfo ("Highlight previous error",
                        "Jumps to the last error or warning",
                        CommandCategories::general, 0);
        result.defaultKeypresses.add ({ '\"', ModifierKeys::commandModifier, 0 });
        result.setActive (childProcess != nullptr && ! childProcess->errorList.isEmpty());
        break;

    default:
        break;
    }
}

bool ProjectContentComponent::perform (const InvocationInfo& info)
{
    // don't allow the project to be saved again if it's currently saving
    if (isSaveCommand (info.commandID) && (project != nullptr && project->isCurrentlySaving()))
        return false;

    switch (info.commandID)
    {
        case CommandIDs::saveProject:
        case CommandIDs::closeProject:
        case CommandIDs::saveDocument:
        case CommandIDs::saveDocumentAs:
        case CommandIDs::closeDocument:
        case CommandIDs::goToPreviousDoc:
        case CommandIDs::goToNextDoc:
        case CommandIDs::goToCounterpart:
        case CommandIDs::saveAndOpenInIDE:
            if (reinvokeCommandAfterCancellingModalComps (info))
            {
                grabKeyboardFocus(); // to force any open labels to close their text editors
                return true;
            }

            break;

        default:
            break;
    }

    if (isCurrentlyBlockedByAnotherModalComponent())
        return false;

    switch (info.commandID)
    {
        case CommandIDs::saveProject:               saveProject();      break;
        case CommandIDs::closeProject:              closeProject();     break;
        case CommandIDs::saveDocument:              saveDocument();     break;
        case CommandIDs::saveDocumentAs:            saveAs();           break;
        case CommandIDs::closeDocument:             closeDocument();    break;
        case CommandIDs::goToPreviousDoc:           goToPreviousFile(); break;
        case CommandIDs::goToNextDoc:               goToNextFile();     break;
        case CommandIDs::goToCounterpart:           goToCounterpart();  break;

        case CommandIDs::showProjectSettings:       showProjectSettings();         break;
        case CommandIDs::showProjectTab:            showProjectTab();              break;
        case CommandIDs::showBuildTab:              showBuildTab();                break;
        case CommandIDs::showFileExplorerPanel:     showFilesPanel();              break;
        case CommandIDs::showModulesPanel:          showModulesPanel();            break;
        case CommandIDs::showExportersPanel:        showExportersPanel();          break;
        case CommandIDs::showExporterSettings:      showCurrentExporterSettings(); break;

        case CommandIDs::openInIDE:                 openInSelectedIDE (false); break;
        case CommandIDs::saveAndOpenInIDE:          openInSelectedIDE (true);  break;

        case CommandIDs::createNewExporter:         showNewExporterMenu(); break;

        case CommandIDs::deleteSelectedItem:        deleteSelectedTreeItems(); break;

        case CommandIDs::showTranslationTool:       showTranslationTool(); break;

        case CommandIDs::cleanAll:                  cleanAll();                                                   break;
        case CommandIDs::toggleBuildEnabled:        setBuildEnabled (! isBuildEnabled());                         break;
        case CommandIDs::buildNow:                  rebuildNow();                                                 break;
        case CommandIDs::toggleContinuousBuild:     setContinuousRebuildEnabled (! isContinuousRebuildEnabled()); break;
        case CommandIDs::launchApp:                 launchApp();                                                  break;
        case CommandIDs::killApp:                   killApp();                                                    break;
        case CommandIDs::reinstantiateComp:         reinstantiateLivePreviewWindows();                            break;
        case CommandIDs::showWarnings:              toggleWarnings();                                             break;
        case CommandIDs::nextError:                 showNextError();                                              break;
        case CommandIDs::prevError:                 showPreviousError();                                          break;

        default:
            return false;
    }

    return true;
}

bool ProjectContentComponent::isSaveCommand (const CommandID id)
{
    return (id == CommandIDs::saveProject || id == CommandIDs::saveDocument || id == CommandIDs::saveAndOpenInIDE);
}

void ProjectContentComponent::getSelectedProjectItemsBeingDragged (const DragAndDropTarget::SourceDetails& dragSourceDetails,
                                                                   OwnedArray<Project::Item>& selectedNodes)
{
    TreeItemTypes::FileTreeItemBase::getSelectedProjectItemsBeingDragged (dragSourceDetails, selectedNodes);
}

//==============================================================================
void ProjectContentComponent::killChildProcess()
{
    if (childProcess != nullptr)
    {
        deleteProjectTabs();
        childProcess = nullptr;
        ProjucerApplication::getApp().childProcessCache->removeOrphans();
    }
}

void ProjectContentComponent::setBuildEnabled (bool isEnabled, bool displayError)
{
    if (project != nullptr && isEnabled != isBuildEnabled())
    {
        if (! displayError)
            lastCrashMessage = {};

        project->getCompileEngineSettings().setBuildEnabled (isEnabled);
        killChildProcess();
        refreshTabsIfBuildStatusChanged();
    }
}

void ProjectContentComponent::cleanAll()
{
    lastCrashMessage = String();

    if (childProcess != nullptr)
        childProcess->cleanAll();
    else if (auto* p = getProject())
        CompileEngineChildProcess::cleanAllCachedFilesForProject (*p);
}

void ProjectContentComponent::handleCrash (const String& message)
{
    lastCrashMessage = message.isEmpty() ? TRANS("JIT process stopped responding!")
                                         : (TRANS("JIT process crashed!") + ":\n\n" + message);

    if (project != nullptr)
    {
        setBuildEnabled (false, true);
        showBuildTab();
    }
}

bool ProjectContentComponent::isBuildEnabled() const
{
    return project != nullptr && project->getCompileEngineSettings().isBuildEnabled()
            && CompileEngineDLL::getInstance()->isLoaded();
}

void ProjectContentComponent::refreshTabsIfBuildStatusChanged()
{
    if (project != nullptr
         && (sidebarTabs.getNumTabs() < 2
            || isBuildEnabled() != isBuildTabEnabled()))
        rebuildProjectTabs();
}

bool ProjectContentComponent::areWarningsEnabled() const
{
    return project != nullptr && project->getCompileEngineSettings().areWarningsEnabled();
}

void ProjectContentComponent::updateWarningState()
{
    if (childProcess != nullptr)
        childProcess->errorList.setWarningsEnabled (areWarningsEnabled());
}

void ProjectContentComponent::toggleWarnings()
{
    if (project != nullptr)
    {
        project->getCompileEngineSettings().setWarningsEnabled (! areWarningsEnabled());
        updateWarningState();
    }
}

static ProjucerAppClasses::ErrorListComp* findErrorListComp (const TabbedComponent& tabs)
{
    if (auto* bt = findBuildTab (tabs))
        return bt->errorListComp;

    return nullptr;
}

void ProjectContentComponent::showNextError()
{
    if (auto* el = findErrorListComp (sidebarTabs))
    {
        showBuildTab();
        el->showNext();
    }
}

void ProjectContentComponent::showPreviousError()
{
    if (auto* el = findErrorListComp (sidebarTabs))
    {
        showBuildTab();
        el->showPrevious();
    }
}

void ProjectContentComponent::reinstantiateLivePreviewWindows()
{
    if (childProcess != nullptr)
        childProcess->reinstantiatePreviews();
}

void ProjectContentComponent::launchApp()
{
    if (childProcess != nullptr)
        childProcess->launchApp();
}

void ProjectContentComponent::killApp()
{
    if (childProcess != nullptr)
        childProcess->killApp();
}

void ProjectContentComponent::rebuildNow()
{
    if (childProcess != nullptr)
        childProcess->flushEditorChanges();
}

void ProjectContentComponent::globalFocusChanged (Component* focusedComponent)
{
    auto nowForeground = (Process::isForegroundProcess()
                            && (focusedComponent == this || isParentOf (focusedComponent)));

    if (nowForeground != isForeground)
    {
        isForeground = nowForeground;

        if (childProcess != nullptr)
            childProcess->processActivationChanged (isForeground);
    }
}

void ProjectContentComponent::timerCallback()
{
    if (! isBuildEnabled())
        killChildProcess();

    refreshTabsIfBuildStatusChanged();
}

bool ProjectContentComponent::isContinuousRebuildEnabled()
{
    return project != nullptr && project->getCompileEngineSettings().isContinuousRebuildEnabled();
}

void ProjectContentComponent::setContinuousRebuildEnabled (bool b)
{
    if (project != nullptr && childProcess != nullptr)
    {
        project->getCompileEngineSettings().setContinuousRebuildEnabled (b);
        ProjucerApplication::getCommandManager().commandStatusChanged();
    }
}

ReferenceCountedObjectPtr<CompileEngineChildProcess> ProjectContentComponent::getChildProcess()
{
    if (childProcess == nullptr && isBuildEnabled())
        childProcess = ProjucerApplication::getApp().childProcessCache->getOrCreate (*project);

    return childProcess;
}

void ProjectContentComponent::handleMissingSystemHeaders()
{
   #if JUCE_MAC
    String tabMessage ("Compiler not available due to missing system headers\nPlease install a recent version of Xcode");
    String alertWindowMessage ("Missing system headers\nPlease install a recent version of Xcode");
   #elif JUCE_WINDOWS
    String tabMessage ("Compiler not available due to missing system headers\nPlease install a recent version of Visual Studio and the Windows Desktop SDK");
    String alertWindowMessage ("Missing system headers\nPlease install a recent version of Visual Studio and the Windows Desktop SDK");
   #elif JUCE_LINUX
    String tabMessage ("Compiler not available due to missing system headers\nPlease do a sudo apt-get install ...");
    String alertWindowMessage ("Missing system headers\nPlease do sudo apt-get install ...");
   #endif

    setBuildEnabled (false, true);

    deleteProjectTabs();
    createProjectTabs();

    if (auto* bt = getLiveBuildTab())
    {
        bt->isEnabled = false;
        bt->errorMessage = tabMessage;
    }

    showBuildTab();

    AlertWindow::showMessageBox (AlertWindow::AlertIconType::WarningIcon,
                                 "Missing system headers", alertWindowMessage);
}

//==============================================================================
void ProjectContentComponent::showProjectPanel (const int index)
{
    showProjectTab();

    if (auto* pTab = getProjectTab())
        pTab->showPanel (index);
}

ProjectTab* ProjectContentComponent::getProjectTab()
{
    return dynamic_cast<ProjectTab*> (sidebarTabs.getTabContentComponent (0));
}

LiveBuildTab* ProjectContentComponent::getLiveBuildTab()
{
    return dynamic_cast<LiveBuildTab*> (sidebarTabs.getTabContentComponent (1));
}