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

   This file is part of the JUCE 7 technical preview.
   Copyright (c) 2022 - Raw Material Software Limited

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

   For the technical preview this file cannot be licensed commercially.

   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);

        setFocusContainerType (FocusContainerType::focusContainer);
        setTitle ("DemoRunner Settings");

        setOpaque (true);
    }

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

    void resized() override
    {
        constexpr int minimumWidth  = 350;
        constexpr int minimumHeight = 550;

        auto r = getLocalBounds();
        const auto scrollBarWidth = getLookAndFeel().getDefaultScrollbarWidth();

        innerContent.setSize (jmax (r.getWidth() - scrollBarWidth, minimumWidth),
                              jmax (r.getHeight(), minimumHeight));

        settingsViewport.setBounds (r);
    }

private:
    static constexpr float titleLabelFontHeight = 18.0f;
    static constexpr int itemHeight = 30;
    static constexpr int itemSpacing = 7;

    class GraphicsSettingsGroup  : public Component,
                                   private ComponentMovementWatcher
    {
    public:
        GraphicsSettingsGroup (MainComponent& comp)
            : ComponentMovementWatcher (&comp),
              mainComponent (comp)
        {
            addAndMakeVisible (titleLabel);
            titleLabel.setFont (titleLabelFontHeight);

            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);

            setFocusContainerType (FocusContainerType::focusContainer);
            setTitle ("Graphics Settings");
        }

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

            titleLabel.setBounds (bounds.removeFromTop (itemHeight));
            bounds.removeFromTop (itemSpacing);

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

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

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

    private:
        void componentMovedOrResized (bool, bool) override    {}
        using ComponentListener::componentMovedOrResized;

        void componentVisibilityChanged() override            {}
        using ComponentListener::componentVisibilityChanged;

        void componentPeerChanged() override
        {
            auto* newPeer = mainComponent.getPeer();

            if (peer != newPeer)
            {
                peer = newPeer;

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

        void refreshRenderingEngineSelector()
        {
            rendererSelector.clear (NotificationType::dontSendNotification);

            rendererSelector.addItemList (mainComponent.getRenderingEngines(), 1);
            rendererSelector.setSelectedItemIndex (mainComponent.getCurrentRenderingEngine());
        }

        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()));
        }

        MainComponent& mainComponent;
        ComponentPeer* peer = nullptr;

        Label titleLabel       { {}, "Graphics" },
              lookAndFeelLabel { {}, "LookAndFeel:" },
              rendererLabel    { {}, "Renderer:" };

        ComboBox lookAndFeelSelector, rendererSelector;
        StringArray lookAndFeelNames;
        OwnedArray<LookAndFeel> lookAndFeels;
    };

    class AudioSettingsGroup  : public Component
    {
    public:
        AudioSettingsGroup()
            : deviceSelectorComp (getSharedAudioDeviceManager(), 0, 256, 0, 256, true, true, true, false)
        {
            addAndMakeVisible (titleLabel);
            titleLabel.setFont (titleLabelFontHeight);

            addAndMakeVisible (deviceSelectorComp);
            deviceSelectorComp.setItemHeight (itemHeight);

            setFocusContainerType (FocusContainerType::focusContainer);
            setTitle ("Audio Settings");
        }

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

            titleLabel.setBounds (bounds.removeFromTop (itemHeight));
            bounds.removeFromTop (itemSpacing);

            deviceSelectorComp.setBounds (bounds);
        }

    private:
        Label titleLabel { {}, "Audio" };
        AudioDeviceSelectorComponent deviceSelectorComp;
    };

    //==============================================================================
    class InnerContent    : public Component
    {
    public:
        InnerContent (MainComponent& mainComponent)
            : graphicsSettings (mainComponent)
        {
            addAndMakeVisible (graphicsSettings);
            addAndMakeVisible (audioSettings);

            setOpaque (true);
        }

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

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

            graphicsSettings.setBounds (bounds.removeFromTop (150));
            audioSettings.setBounds (bounds);
        }

    private:
        GraphicsSettingsGroup graphicsSettings;
        AudioSettingsGroup audioSettings;
    };

    Viewport settingsViewport;
    InnerContent innerContent;
};