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

   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.

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

#include "jucer_HeaderComponent.h"

#include "../../Application/jucer_Application.h"

#include "../../ProjectSaving/jucer_ProjectExporter.h"
#include "../../Project/UI/jucer_ProjectContentComponent.h"

//==============================================================================
HeaderComponent::HeaderComponent (ProjectContentComponent* pcc)
    : projectContentComponent (pcc)
{
    setTitle ("Header");
    setFocusContainerType (FocusContainerType::focusContainer);

    addAndMakeVisible (configLabel);
    addAndMakeVisible (exporterBox);

    exporterBox.onChange = [this] { updateExporterButton(); };

    juceIcon.setImage (ImageCache::getFromMemory (BinaryData::juce_icon_png, BinaryData::juce_icon_pngSize), RectanglePlacement::centred);
    addAndMakeVisible (juceIcon);

    addAndMakeVisible (userAvatar);
    userAvatar.addChangeListener (this);

    projectNameLabel.setText ({}, dontSendNotification);
    addAndMakeVisible (projectNameLabel);

    initialiseButtons();
}

//==============================================================================
void HeaderComponent::resized()
{
    auto bounds = getLocalBounds();
    configLabel.setFont ({ (float) bounds.getHeight() / 3.0f });

    {
        auto headerBounds = bounds.removeFromLeft (tabsWidth);

        const int buttonSize = 25;
        auto buttonBounds = headerBounds.removeFromRight (buttonSize);

        projectSettingsButton.setBounds (buttonBounds.removeFromBottom (buttonSize).reduced (2));

        juceIcon.setBounds (headerBounds.removeFromLeft (headerBounds.getHeight()).reduced (2));

        headerBounds.removeFromRight (5);
        projectNameLabel.setBounds (headerBounds);
    }

    {
        auto exporterWidth = jmin (400, bounds.getWidth() / 2);
        Rectangle<int> exporterBounds (0, 0, exporterWidth, bounds.getHeight());

        exporterBounds.setCentre (bounds.getCentre());

        saveAndOpenInIDEButton.setBounds (exporterBounds.removeFromRight (exporterBounds.getHeight()).reduced (2));

        exporterBounds.removeFromRight (5);
        exporterBox.setBounds (exporterBounds.removeFromBottom (roundToInt ((float) exporterBounds.getHeight() / 1.8f)));
        configLabel.setBounds (exporterBounds);
    }

    userAvatar.setBounds (bounds.removeFromRight (userAvatar.isDisplaingGPLLogo() ? roundToInt ((float) bounds.getHeight() * 1.9f)
                                                                                  : bounds.getHeight()).reduced (2));
}

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

//==============================================================================
void HeaderComponent::setCurrentProject (Project* newProject)
{
    stopTimer();
    repaint();

    projectNameLabel.setText ({}, dontSendNotification);

    project = newProject;

    if (project != nullptr)
    {
        exportersTree = project->getExporters();
        exportersTree.addListener (this);
        updateExporters();

        projectNameValue.referTo (project->getProjectValue (Ids::name));
        projectNameValue.addListener (this);
        updateName();
    }
}

//==============================================================================
void HeaderComponent::updateExporters()
{
    auto selectedExporter = getSelectedExporter();

    exporterBox.clear();
    auto preferredExporterIndex = -1;

    int i = 0;
    for (Project::ExporterIterator exporter (*project); exporter.next(); ++i)
    {
        auto exporterName = exporter->getUniqueName();

        exporterBox.addItem (exporterName, i + 1);

        if (selectedExporter != nullptr && exporterName == selectedExporter->getUniqueName())
            exporterBox.setSelectedId (i + 1);

        if (exporterName.contains (ProjectExporter::getCurrentPlatformExporterTypeInfo().displayName) && preferredExporterIndex == -1)
            preferredExporterIndex = i;
    }

    if (exporterBox.getSelectedItemIndex() == -1)
    {
        if (preferredExporterIndex == -1)
        {
            i = 0;
            for (Project::ExporterIterator exporter (*project); exporter.next(); ++i)
            {
                if (exporter->canLaunchProject())
                {
                    preferredExporterIndex = i;
                    break;
                }
            }
        }

        exporterBox.setSelectedItemIndex (preferredExporterIndex != -1 ? preferredExporterIndex : 0);
    }

    updateExporterButton();
}

std::unique_ptr<ProjectExporter> HeaderComponent::getSelectedExporter() const
{
    if (project != nullptr)
    {
        int i = 0;
        auto selectedIndex = exporterBox.getSelectedItemIndex();

        for (Project::ExporterIterator exporter (*project); exporter.next();)
            if (i++ == selectedIndex)
                return std::move (exporter.exporter);
    }

    return nullptr;
}

bool HeaderComponent::canCurrentExporterLaunchProject() const
{
    if (project != nullptr)
    {
        if (auto selectedExporter = getSelectedExporter())
        {
            for (Project::ExporterIterator exporter (*project); exporter.next();)
                if (exporter->canLaunchProject() && exporter->getUniqueName() == selectedExporter->getUniqueName())
                    return true;
        }
    }

    return false;
}

//==============================================================================
void HeaderComponent::sidebarTabsWidthChanged (int newWidth)
{
    tabsWidth = newWidth;
    resized();
}

//==============================================================================
void HeaderComponent::changeListenerCallback (ChangeBroadcaster* source)
{
    if (source == &userAvatar)
        resized();
}

void HeaderComponent::valueChanged (Value&)
{
    updateName();
}

void HeaderComponent::timerCallback()
{
    repaint();
}

//==============================================================================
void HeaderComponent::initialiseButtons()
{
    addAndMakeVisible (projectSettingsButton);
    projectSettingsButton.onClick = [this] { projectContentComponent->showProjectSettings(); };

    addAndMakeVisible (saveAndOpenInIDEButton);
    saveAndOpenInIDEButton.setBackgroundColour (Colours::white);
    saveAndOpenInIDEButton.setIconInset (7);
    saveAndOpenInIDEButton.onClick = [this]
    {
        if (project == nullptr)
            return;

        if (! project->isSaveAndExportDisabled())
        {
            projectContentComponent->openInSelectedIDE (true);
            return;
        }

        auto setWarningVisible = [this] (const Identifier& identifier)
        {
            auto child = project->getProjectMessages().getChildWithName (ProjectMessages::Ids::warning)
                                                      .getChildWithName (identifier);

            if (child.isValid())
                child.setProperty (ProjectMessages::Ids::isVisible, true, nullptr);
        };

        if (project->hasIncompatibleLicenseTypeAndSplashScreenSetting())
            setWarningVisible (ProjectMessages::Ids::incompatibleLicense);

        if (project->isFileModificationCheckPending())
            setWarningVisible (ProjectMessages::Ids::jucerFileModified);
    };

    updateExporterButton();
}

void HeaderComponent::updateName()
{
    if (project != nullptr)
        projectNameLabel.setText (project->getDocumentTitle(), dontSendNotification);
}

void HeaderComponent::updateExporterButton()
{
    if (auto selectedExporter = getSelectedExporter())
    {
        auto selectedName = selectedExporter->getUniqueName();

        for (auto info : ProjectExporter::getExporterTypeInfos())
        {
            if (selectedName.contains (info.displayName))
            {
                saveAndOpenInIDEButton.setImage (info.icon);
                saveAndOpenInIDEButton.repaint();
                saveAndOpenInIDEButton.setEnabled (canCurrentExporterLaunchProject());
            }
        }
    }
}