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

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

   JUCE is an open source library subject to commercial or open-source
   licensing.

   By using JUCE, you agree to the terms of both the JUCE 6 End-User License
   Agreement and JUCE Privacy Policy (both effective as of the 16th June 2020).

   End User License Agreement: www.juce.com/juce-6-licence
   Privacy Policy: www.juce.com/juce-privacy-policy

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

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

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

#include <JuceHeader.h>
#include "../../Assets/DemoUtilities.h"

#include "UI/MainComponent.h"

namespace example
{
    class SplashScreen : public TopLevelWindow
    {
    public:
        SplashScreen()
            : TopLevelWindow(TRANS("Start-up Screen"), true)
        {
            setOpaque(false);

            setMouseCursor(MouseCursor::WaitCursor);
            centreWithSize(550, 320);
            setVisible(true);

            repaint();
            waitForRepaint();
        }

        void setStartupMessage(const String& m)
        {
            if (startupMessage != m)
            {
                startupMessage = m;
                repaint();
                waitForRepaint();
            }
        }

        void waitForRepaint()
        {
            const int currentCount = repaintCount;

            while (repaintCount == currentCount)
                MessageManager::getInstance()->runDispatchLoopUntil(5);
        }

        void hide()
        {
            setVisible(false);
        }

        void paint(Graphics& g) override
        {
            g.fillAll(Colours::black);

            auto r = getLocalBounds().reduced(20);

            AttributedString att;
            const Colour col(Colours::white);
            const Font f(16.0f);
            g.setFont(f);

            att.append("\n\n" + startupMessage, f, col.withMultipliedAlpha(0.8f));
            att.append("\n\n" + String(CharPointer_UTF8("\xc2\xa9")) + " " + String(Time::getCompilationDate().getYear()), 14.0f, col);

            att.setJustification(Justification::centredLeft);
            att.draw(g, r.toFloat());

            ++repaintCount;
        }

    private:
        //==============================================================================
        String startupMessage;
        int repaintCount = 0;
    };
}


//==============================================================================
#if JUCE_MAC || JUCE_WINDOWS || JUCE_LINUX || JUCE_BSD
 // Just add a simple icon to the Window system tray area or Mac menu bar..
 struct DemoTaskbarComponent  : public SystemTrayIconComponent,
                                private Timer
 {
     DemoTaskbarComponent()
     {
         setIconImage (getImageFromAssets ("juce_icon.png"),
                       getImageFromAssets ("juce_icon_template.png"));
         setIconTooltip ("JUCE demo runner!");
     }

     void mouseDown (const MouseEvent&) override
     {
         // On OSX, there can be problems launching a menu when we're not the foreground
         // process, so just in case, we'll first make our process active, and then use a
         // timer to wait a moment before opening our menu, which gives the OS some time to
         // get its act together and bring our windows to the front.

         Process::makeForegroundProcess();
         startTimer (50);
     }

     // This is invoked when the menu is clicked or dismissed
     static void menuInvocationCallback (int chosenItemID, DemoTaskbarComponent*)
     {
         if (chosenItemID == 1)
             JUCEApplication::getInstance()->systemRequestedQuit();
     }

     void timerCallback() override
     {
         stopTimer();

         PopupMenu m;
         m.addItem (1, "Quit");

         // It's always better to open menus asynchronously when possible.
         m.showMenuAsync (PopupMenu::Options(),
                          ModalCallbackFunction::forComponent (menuInvocationCallback, this));
     }
 };
#endif

std::unique_ptr<AudioDeviceManager> sharedAudioDeviceManager;

//==============================================================================
class DemoRunnerApplication  : public JUCEApplication
{
public:
    //==============================================================================
    DemoRunnerApplication() {}

    ~DemoRunnerApplication() override
    {
        sharedAudioDeviceManager.reset();
    }

    const String getApplicationName() override       { return ProjectInfo::projectName; }
    const String getApplicationVersion() override    { return ProjectInfo::versionString; }
    bool moreThanOneInstanceAllowed() override       { return true; }

    //==============================================================================
    void initialise (const String& commandLine) override
    {
        example::SplashScreen splash;
        splash.setStartupMessage("First message");
        splash.waitForRepaint();

        registerAllDemos();

        splash.setStartupMessage("Second message - demos registered");
        splash.waitForRepaint();

      #if JUCE_MAC || JUCE_WINDOWS || JUCE_LINUX || JUCE_BSD
        // (This function call is for one of the demos, which involves launching a child process)
        if (invokeChildProcessDemo (commandLine))
            return;
      #else
        ignoreUnused (commandLine);
      #endif

        mainWindow.reset (new MainAppWindow (getApplicationName()));
    }

    bool backButtonPressed() override    { mainWindow->getMainComponent().getSidePanel().showOrHide (false); return true; }
    void shutdown() override             { mainWindow = nullptr; }

    //==============================================================================
    void systemRequestedQuit() override                   { quit(); }
    void anotherInstanceStarted (const String&) override  {}

    ApplicationCommandManager& getGlobalCommandManager()  { return commandManager; }

private:
    class MainAppWindow    : public DocumentWindow
    {
    public:
        MainAppWindow (const String& name)
            : DocumentWindow (name, Desktop::getInstance().getDefaultLookAndFeel()
                                                          .findColour (ResizableWindow::backgroundColourId),
                              DocumentWindow::allButtons)
        {
            setUsingNativeTitleBar (true);
            setResizable (true, false);
            setResizeLimits (400, 400, 10000, 10000);

           #if JUCE_IOS || JUCE_ANDROID
            setFullScreen (true);

            auto& desktop = Desktop::getInstance();

            desktop.setOrientationsEnabled (Desktop::allOrientations);
            desktop.setKioskModeComponent (this);
           #else
            setBounds ((int) (0.1f * (float) getParentWidth()),
                       (int) (0.1f * (float) getParentHeight()),
                       jmax (850, (int) (0.5f * (float) getParentWidth())),
                       jmax (600, (int) (0.7f * (float) getParentHeight())));
           #endif

            setContentOwned (new MainComponent(), false);
            setVisible (true);

           #if JUCE_MAC || JUCE_WINDOWS || JUCE_LINUX || JUCE_BSD
            taskbarIcon.reset (new DemoTaskbarComponent());
           #endif
        }

        void closeButtonPressed() override    { JUCEApplication::getInstance()->systemRequestedQuit(); }

        //==============================================================================
        MainComponent& getMainComponent()    { return *dynamic_cast<MainComponent*> (getContentComponent()); }

    private:
        std::unique_ptr<Component> taskbarIcon;

        JUCE_DECLARE_NON_COPYABLE_WITH_LEAK_DETECTOR (MainAppWindow)
    };

    std::unique_ptr<MainAppWindow> mainWindow;
    ApplicationCommandManager commandManager;
};

ApplicationCommandManager& getGlobalCommandManager()
{
    return dynamic_cast<DemoRunnerApplication*> (JUCEApplication::getInstance())->getGlobalCommandManager();
}

//==============================================================================
// This macro generates the main() routine that launches the app.
START_JUCE_APPLICATION (DemoRunnerApplication)