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

   This file is part of the JUCE 6 technical preview.
   Copyright (c) 2020 - Raw Material Software Limited

   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.

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

#pragma once


//==============================================================================
class ExporterItem   : public ProjectTreeItemBase,
                       private Value::Listener
{
public:
    ExporterItem (Project& p, ProjectExporter* e, int index)
        : project (p), exporter (e), configListTree (exporter->getConfigurations()),
          exporterIndex (index)
    {
        exporter->initialiseDependencyPathValues();
        configListTree.addListener (this);
        targetLocationValue.referTo (exporter->getTargetLocationValue());
        targetLocationValue.addListener (this);
    }

    int getItemHeight() const override        { return 25; }
    bool canBeSelected() const override       { return true; }
    bool mightContainSubItems() override      { return exporter->getNumConfigurations() > 0; }
    String getUniqueName() const override     { return "exporter_" + String (exporterIndex); }
    String getRenamingName() const override   { return getDisplayName(); }
    String getDisplayName() const override    { return exporter->getName(); }
    void setName (const String&) override     {}
    bool isMissing() const override           { return false; }
    String getTooltip() override              { return getDisplayName(); }

    static Icon getIconForExporter (ProjectExporter* e)
    {
        if (e != nullptr)
        {
            if         (e->isXcode())        return Icon (getIcons().xcode,        Colours::transparentBlack);
            else if    (e->isVisualStudio()) return Icon (getIcons().visualStudio, Colours::transparentBlack);
            else if    (e->isAndroid())      return Icon (getIcons().android,      Colours::transparentBlack);
            else if    (e->isCodeBlocks())   return Icon (getIcons().codeBlocks,   Colours::transparentBlack);
            else if    (e->isMakefile())     return Icon (getIcons().linux,        Colours::transparentBlack);
            else if    (e->isCLion())        return Icon (getIcons().clion,        Colours::transparentBlack);
        }

        return Icon();
    }

    Icon getIcon() const override
    {
        return getIconForExporter (exporter.get()).withColour (getContentColour (true));
    }

    void showDocument() override
    {
        showSettingsPage (new SettingsComp (*exporter));
    }

    void deleteItem() override
    {
        if (AlertWindow::showOkCancelBox (AlertWindow::WarningIcon, "Delete Exporter",
                                          "Are you sure you want to delete this export target?"))
        {
            closeSettingsPage();
            ValueTree parent (exporter->settings.getParent());
            parent.removeChild (exporter->settings, project.getUndoManagerFor (parent));
        }
    }

    void addSubItems() override
    {
        for (ProjectExporter::ConfigIterator config (*exporter); config.next();)
            addSubItem (new ConfigItem (config.config, *exporter));
    }

    void showPopupMenu() override
    {
        PopupMenu menu;
        menu.addItem (1, "Add a new configuration", exporter->supportsUserDefinedConfigurations());
        menu.addItem (2, "Save this exporter");
        menu.addSeparator();
        menu.addItem (3, "Delete this exporter");

        launchPopupMenu (menu);
    }

    void showAddMenu() override
    {
        PopupMenu menu;
        menu.addItem (1, "Add a new configuration", exporter->supportsUserDefinedConfigurations());

        launchPopupMenu (menu);
    }

    void handlePopupMenuResult (int resultCode) override
    {
        if (resultCode == 1)
            exporter->addNewConfiguration (false);
        else if (resultCode == 2)
            project.saveProject (exporter.get());
        else if (resultCode == 3)
            deleteAllSelectedItems();
    }

    var getDragSourceDescription() override
    {
        return getParentItem()->getUniqueName() + "/" + String (exporterIndex);
    }

    bool isInterestedInDragSource (const DragAndDropTarget::SourceDetails& dragSourceDetails) override
    {
        return dragSourceDetails.description.toString().startsWith (getUniqueName());
    }

    void itemDropped (const DragAndDropTarget::SourceDetails& dragSourceDetails, int insertIndex) override
    {
        auto oldIndex = indexOfConfig (dragSourceDetails.description.toString().fromLastOccurrenceOf ("||", false, false));

        if (oldIndex >= 0)
            configListTree.moveChild (oldIndex, insertIndex, project.getUndoManagerFor (configListTree));
    }

    int indexOfConfig (const String& configName)
    {
        int i = 0;
        for (ProjectExporter::ConfigIterator config (*exporter); config.next(); ++i)
            if (config->getName() == configName)
                return i;

        return -1;
    }

    //==============================================================================
    void valueTreeChildAdded (ValueTree& parentTree, ValueTree&) override         { refreshIfNeeded (parentTree); }
    void valueTreeChildRemoved (ValueTree& parentTree, ValueTree&, int) override  { refreshIfNeeded (parentTree); }
    void valueTreeChildOrderChanged (ValueTree& parentTree, int, int) override    { refreshIfNeeded (parentTree); }

    void refreshIfNeeded (ValueTree& changedTree)
    {
        if (changedTree == configListTree)
            refreshSubItems();
    }

private:
    Project& project;
    std::unique_ptr<ProjectExporter> exporter;
    ValueTree configListTree;
    int exporterIndex;

    Value targetLocationValue;

    void valueChanged (Value& value) override
    {
        if (value == exporter->getTargetLocationValue())
            refreshSubItems();
    }

    //==============================================================================
    struct SettingsComp  : public Component
    {
        SettingsComp (ProjectExporter& exp)
            : group (exp.getName(),
                     ExporterItem::getIconForExporter (&exp),
                     exp.getDescription())
        {
            addAndMakeVisible (group);

            PropertyListBuilder props;
            exp.createPropertyEditors (props);
            group.setProperties (props);
            parentSizeChanged();
        }

        void parentSizeChanged() override   { updateSize (*this, group); }
        void resized() override             { group.setBounds (getLocalBounds().withTrimmedLeft (12)); }

        PropertyGroupComponent group;

        JUCE_DECLARE_NON_COPYABLE_WITH_LEAK_DETECTOR (SettingsComp)
    };

    JUCE_DECLARE_NON_COPYABLE_WITH_LEAK_DETECTOR (ExporterItem)
};


//==============================================================================
class ConfigItem   : public ProjectTreeItemBase
{
public:
    ConfigItem (const ProjectExporter::BuildConfiguration::Ptr& conf, ProjectExporter& e)
        : config (conf), exporter (e), configTree (config->config)
    {
        jassert (config != nullptr);
        configTree.addListener (this);
    }

    bool isMissing() const override                 { return false; }
    bool canBeSelected() const override             { return true; }
    bool mightContainSubItems() override            { return false; }
    String getUniqueName() const override           { return "config_" + config->getName(); }
    String getRenamingName() const override         { return getDisplayName(); }
    String getDisplayName() const override          { return config->getName(); }
    void setName (const String&) override           {}
    Icon getIcon() const override                   { return Icon (getIcons().config, getContentColour (true)); }
    void itemOpennessChanged (bool) override        {}

    void showDocument() override
    {
        showSettingsPage (new SettingsComp (*config));
    }

    void deleteItem() override
    {
        if (AlertWindow::showOkCancelBox (AlertWindow::WarningIcon, "Delete Configuration",
                                          "Are you sure you want to delete this configuration?"))
        {
            closeSettingsPage();
            config->removeFromExporter();
        }
    }

    void showPopupMenu() override
    {
        bool enabled = exporter.supportsUserDefinedConfigurations();

        PopupMenu menu;
        menu.addItem (1, "Create a copy of this configuration", enabled);
        menu.addSeparator();
        menu.addItem (2, "Delete this configuration", enabled);

        launchPopupMenu (menu);
    }

    void handlePopupMenuResult (int resultCode) override
    {
        if (resultCode == 1)
            exporter.addNewConfigurationFromExisting (*config);
        else if (resultCode == 2)
            deleteAllSelectedItems();
    }

    var getDragSourceDescription() override
    {
        return getParentItem()->getUniqueName() + "||" + config->getName();
    }

    void valueTreePropertyChanged (ValueTree&, const Identifier&) override  { repaintItem(); }

private:
    ProjectExporter::BuildConfiguration::Ptr config;
    ProjectExporter& exporter;
    ValueTree configTree;

    //==============================================================================
    class SettingsComp  : public Component
    {
    public:
        SettingsComp (ProjectExporter::BuildConfiguration& conf)
            : group (conf.exporter.getName() + " - " + conf.getName(), Icon (getIcons().config, Colours::transparentBlack))
        {
            addAndMakeVisible (group);

            PropertyListBuilder props;
            conf.createPropertyEditors (props);
            group.setProperties (props);
            parentSizeChanged();
        }

        void parentSizeChanged() override  { updateSize (*this, group); }

        void resized() override { group.setBounds (getLocalBounds().withTrimmedLeft (12)); }

    private:
        PropertyGroupComponent group;

        JUCE_DECLARE_NON_COPYABLE_WITH_LEAK_DETECTOR (SettingsComp)
    };

    JUCE_DECLARE_NON_COPYABLE_WITH_LEAK_DETECTOR (ConfigItem)
};

//==============================================================================
class ExportersTreeRoot    : public ProjectTreeItemBase
{
public:
    ExportersTreeRoot (Project& p)
        : project (p),
          exportersTree (project.getExporters())
    {
        exportersTree.addListener (this);
    }

    bool isRoot() const override                     { return true; }
    bool canBeSelected() const override              { return true; }
    bool isMissing() const override                  { return false; }
    bool mightContainSubItems() override             { return project.getNumExporters() > 0; }
    String getUniqueName() const override            { return "exporters"; }
    String getRenamingName() const override          { return getDisplayName(); }
    String getDisplayName() const override           { return "Exporters"; }
    void setName (const String&) override            {}
    Icon getIcon() const override                    { return project.getMainGroup().getIcon (isOpen()).withColour (getContentColour (true)); }

    void showPopupMenu() override
    {
        if (auto* pcc = getProjectContentComponent())
            pcc->showNewExporterMenu();
    }

    void addSubItems() override
    {
        int i = 0;
        for (Project::ExporterIterator exporter (project); exporter.next(); ++i)
            addSubItem (new TreeItemTypes::ExporterItem (project, exporter.exporter.release(), i));
    }

    bool isInterestedInDragSource (const DragAndDropTarget::SourceDetails& dragSourceDetails) override
    {
        return dragSourceDetails.description.toString().startsWith (getUniqueName());
    }

    void itemDropped (const DragAndDropTarget::SourceDetails& dragSourceDetails, int insertIndex) override
    {
        int oldIndex = dragSourceDetails.description.toString().getTrailingIntValue();
        exportersTree.moveChild (oldIndex, jmax (0, insertIndex), project.getUndoManagerFor (exportersTree));
    }

    void itemOpennessChanged (bool isNowOpen) override
    {
        if (isNowOpen)
            refreshSubItems();
    }

    void removeExporter (int index)
    {
        if (auto* exporter = dynamic_cast<TreeItemTypes::ExporterItem*> (getSubItem (index)))
            exporter->deleteItem();
    }

private:
    Project& project;
    ValueTree exportersTree;

    //==============================================================================
    void valueTreeChildAdded (ValueTree& parentTree, ValueTree&) override         { refreshIfNeeded (parentTree); }
    void valueTreeChildRemoved (ValueTree& parentTree, ValueTree&, int) override  { refreshIfNeeded (parentTree); }
    void valueTreeChildOrderChanged (ValueTree& parentTree, int, int) override    { refreshIfNeeded (parentTree); }

    void refreshIfNeeded (ValueTree& changedTree)
    {
        if (changedTree == exportersTree)
            refreshSubItems();
    }

    JUCE_DECLARE_NON_COPYABLE_WITH_LEAK_DETECTOR (ExportersTreeRoot)
};