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

   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.

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

#pragma once

#include "MainComponent.h"

//==============================================================================
class SettingsContent    : public Component
{
public:
    SettingsContent (MainComponent& topLevelComponent)
        : innerContent (topLevelComponent)
    {
        settingsViewport.setViewedComponent (&innerContent, false);
        addAndMakeVisible (settingsViewport);

        setOpaque (true);
    }

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

    void resized() override
    {
        auto r = getLocalBounds();
        auto scrollBarWidth = getLookAndFeel().getDefaultScrollbarWidth();

        innerContent.setSize (jmax (r.getWidth() - scrollBarWidth, innerContent.getMinimumWidth()),
                              jmax (r.getHeight(), innerContent.getMinimumHeight()));

        settingsViewport.setBounds (r);
    }

private:
    Viewport settingsViewport;

    //==============================================================================
    class InnerContent    : public Component,
                            public ComponentMovementWatcher
    {
    public:
        InnerContent (MainComponent& topLevelComponent)
            : ComponentMovementWatcher (this), mainComponent (topLevelComponent)
        {
            addAndMakeVisible (graphicsTitleLabel);
            graphicsTitleLabel.setFont (18.0f);

            addAndMakeVisible (audioTitleLabel);
            audioTitleLabel.setFont (18.0f);

            addLookAndFeels();

            addAndMakeVisible (lookAndFeelSelector);
            for (int i = 0; i < lookAndFeelNames.size(); ++i)
                lookAndFeelSelector.addItem (lookAndFeelNames.getReference (i), i + 1);

            lookAndFeelSelector.setSelectedItemIndex (lookAndFeelNames.indexOf ("LookAndFeel_V4 (Dark)"));
            lookAndFeelSelector.onChange = [this]
            {
                auto* lf = lookAndFeels.getUnchecked (lookAndFeelSelector.getSelectedItemIndex());
                Desktop::getInstance().setDefaultLookAndFeel (lf);
            };

            addAndMakeVisible (lookAndFeelLabel);
            lookAndFeelLabel.setJustificationType (Justification::centredRight);
            lookAndFeelLabel.attachToComponent (&lookAndFeelSelector, true);

            addAndMakeVisible (rendererSelector);
            rendererSelector.onChange = [this] { mainComponent.setRenderingEngine (rendererSelector.getSelectedItemIndex()); };

            addAndMakeVisible (rendererLabel);
            rendererLabel.setJustificationType (Justification::centredRight);
            rendererLabel.attachToComponent (&rendererSelector, true);

            audioSettings.reset (new AudioDeviceSelectorComponent (getSharedAudioDeviceManager(),
                                                                   0, 256, 0, 256, true, true, true, false));
            addAndMakeVisible (audioSettings.get());
            audioSettings->setItemHeight (itemHeight);

            setOpaque (true);
        }

        void paint (Graphics& g) override
        {
            g.fillAll (findColour (ResizableWindow::backgroundColourId).contrasting (0.2f));
        }

        void resized() override
        {
            auto bounds = getLocalBounds();

            auto space = itemHeight / 4;

            graphicsTitleLabel.setBounds (bounds.removeFromTop (30));
            bounds.removeFromTop (space);

            auto xPos = bounds.getX() + (bounds.getWidth() * 0.35f);
            auto width = bounds.getWidth() * 0.6f;

            lookAndFeelSelector.setBounds (bounds.removeFromTop (itemHeight).withWidth ((int) width).withX ((int) xPos));

            bounds.removeFromTop (space);

            rendererSelector.setBounds (bounds.removeFromTop (itemHeight).withWidth ((int) width).withX ((int) xPos));

            bounds.removeFromTop (space);
            audioTitleLabel.setBounds (bounds.removeFromTop (30));
            bounds.removeFromTop (space);

            audioSettings->setBounds (bounds);
        }

        //==============================================================================
        int getMinimumHeight() const noexcept    { return 550; }
        int getMinimumWidth() const noexcept     { return 350; }

    private:
        MainComponent& mainComponent;
        ComponentPeer* peer = nullptr;

        const int itemHeight = 30;

        Label graphicsTitleLabel  { {}, "Graphics" },
              audioTitleLabel     { {}, "Audio" },
              lookAndFeelLabel    { {}, "LookAndFeel:" },
              rendererLabel       { {}, "Renderer:" };

        ComboBox lookAndFeelSelector, rendererSelector;

        StringArray lookAndFeelNames;
        OwnedArray<LookAndFeel> lookAndFeels;

        std::unique_ptr<AudioDeviceSelectorComponent> audioSettings;

        //==============================================================================
        void refreshRenderingEngineSelector()
        {
            StringArray renderingEngines (mainComponent.getRenderingEngines());

            rendererSelector.clear (NotificationType::dontSendNotification);

            for (int i = 0; i < renderingEngines.size(); ++i)
                rendererSelector.addItem (renderingEngines.getReference (i), i + 1);

            rendererSelector.setSelectedItemIndex (mainComponent.getCurrentRenderingEngine());
        }

        //==============================================================================
        void componentMovedOrResized (bool, bool) override    {}
        using ComponentListener::componentMovedOrResized;
        void componentVisibilityChanged() override            {}
        using ComponentListener::componentVisibilityChanged;
        void componentPeerChanged() override
        {
            auto* newPeer = getPeer();
            if (peer != newPeer)
            {
                peer = newPeer;

                if (peer != nullptr)
                    refreshRenderingEngineSelector();
            }
        }

        //==============================================================================
        void addLookAndFeels()
        {
            lookAndFeelNames.addArray ({ "LookAndFeel_V1", "LookAndFeel_V2", "LookAndFeel_V3",
                                         "LookAndFeel_V4 (Dark)", "LookAndFeel_V4 (Midnight)",
                                         "LookAndFeel_V4 (Grey)", "LookAndFeel_V4 (Light)" });

            lookAndFeels.add (new LookAndFeel_V1());
            lookAndFeels.add (new LookAndFeel_V2());
            lookAndFeels.add (new LookAndFeel_V3());
            lookAndFeels.add (new LookAndFeel_V4 (LookAndFeel_V4::getDarkColourScheme()));
            lookAndFeels.add (new LookAndFeel_V4 (LookAndFeel_V4::getMidnightColourScheme()));
            lookAndFeels.add (new LookAndFeel_V4 (LookAndFeel_V4::getGreyColourScheme()));
            lookAndFeels.add (new LookAndFeel_V4 (LookAndFeel_V4::getLightColourScheme()));
        }
    };

    InnerContent innerContent;
};