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

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

   JUCE is an open source framework subject to commercial or open source
   licensing.

   By downloading, installing, or using the JUCE framework, or combining the
   JUCE framework with any other source code, object code, content or any other
   copyrightable work, you agree to the terms of the JUCE End User Licence
   Agreement, and all incorporated terms including the JUCE Privacy Policy and
   the JUCE Website Terms of Service, as applicable, which will bind you. If you
   do not agree to the terms of these agreements, we will not license the JUCE
   framework to you, and you must discontinue the installation or download
   process and cease use of the JUCE framework.

   JUCE End User Licence Agreement: https://juce.com/legal/juce-8-licence/
   JUCE Privacy Policy: https://juce.com/juce-privacy-policy
   JUCE Website Terms of Service: https://juce.com/juce-website-terms-of-service/

   Or:

   You may also use this code under the terms of the AGPLv3:
   https://www.gnu.org/licenses/agpl-3.0.en.html

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

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

#include "../../Application/jucer_Headers.h"
#include "jucer_ProjucerLookAndFeel.h"

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

//==============================================================================
ProjucerLookAndFeel::ProjucerLookAndFeel()
{
    setupColours();
}

ProjucerLookAndFeel::~ProjucerLookAndFeel() {}

void ProjucerLookAndFeel::drawTabButton (TabBarButton& button, Graphics& g, bool isMouseOver, bool isMouseDown)
{
    const auto area = button.getActiveArea();
    auto backgroundColour = findColour (button.isFrontTab() ? secondaryBackgroundColourId
                                                            : inactiveTabBackgroundColourId);

    g.setColour (backgroundColour);
    g.fillRect (area);

    const auto alpha = button.isEnabled() ? ((isMouseOver || isMouseDown) ? 1.0f : 0.8f) : 0.3f;
    auto textColour = findColour (defaultTextColourId).withMultipliedAlpha (alpha);

    auto iconColour = findColour (button.isFrontTab() ? activeTabIconColourId
                                                      : inactiveTabIconColourId);

    auto isProjectTab = button.getName() == ProjectContentComponent::getProjectTabName();

    if (isProjectTab)
    {
        auto icon = Icon (getIcons().closedFolder,
                          iconColour.withMultipliedAlpha (alpha));

        auto isSingleTab = (button.getTabbedButtonBar().getNumTabs() == 1);

        if (isSingleTab)
        {
            auto activeArea = button.getActiveArea().reduced (5);

            activeArea.removeFromLeft (15);
            icon.draw (g, activeArea.removeFromLeft (activeArea.getHeight()).toFloat(), false);
            activeArea.removeFromLeft (10);

            g.setColour (textColour);
            g.drawFittedText (ProjectContentComponent::getProjectTabName(),
                              activeArea, Justification::centredLeft, 1);
        }
        else
        {
            icon.draw (g, button.getTextArea().reduced (8, 8).toFloat(), false);
        }
    }
    else
    {
        TextLayout textLayout;
        LookAndFeel_V3::createTabTextLayout (button, (float) area.getWidth(), (float) area.getHeight(), textColour, textLayout);

        textLayout.draw (g, button.getTextArea().toFloat());
    }
}

int ProjucerLookAndFeel::getTabButtonBestWidth (TabBarButton& button, int)
{
    if (TabbedButtonBar* bar = button.findParentComponentOfClass<TabbedButtonBar>())
        return bar->getWidth() / bar->getNumTabs();

    return 120;
}

void ProjucerLookAndFeel::drawPropertyComponentLabel (Graphics& g, int, int height, PropertyComponent& component)
{
    g.setColour (component.findColour (defaultTextColourId)
                          .withMultipliedAlpha (component.isEnabled() ? 1.0f : 0.6f));

    auto textWidth = getTextWidthForPropertyComponent (component);

    g.setFont (getPropertyComponentFont());
    g.drawFittedText (component.getName(), 0, 0, textWidth, height, Justification::centredLeft, 5, 1.0f);
}

Rectangle<int> ProjucerLookAndFeel::getPropertyComponentContentPosition (PropertyComponent& component)
{
    const auto paddedTextW = getTextWidthForPropertyComponent (component) + 5;
    return { paddedTextW , 0, component.getWidth() - paddedTextW, component.getHeight() - 1 };
}

void ProjucerLookAndFeel::drawButtonBackground (Graphics& g,
                                                Button& button,
                                                const Colour& backgroundColour,
                                                bool isMouseOverButton,
                                                bool isButtonDown)
{
    const auto cornerSize = button.findParentComponentOfClass<PropertyComponent>() != nullptr ? 0.0f : 3.0f;
    const auto bounds = button.getLocalBounds().toFloat();

    auto baseColour = backgroundColour.withMultipliedAlpha (button.isEnabled() ? 1.0f : 0.5f);

    if (isButtonDown || isMouseOverButton)
        baseColour = baseColour.contrasting (isButtonDown ? 0.2f : 0.05f);

    g.setColour (baseColour);

    if (button.isConnectedOnLeft() || button.isConnectedOnRight())
    {
        Path path;
        path.addRoundedRectangle (bounds.getX(), bounds.getY(),
                                  bounds.getWidth(), bounds.getHeight(),
                                  cornerSize, cornerSize,
                                  ! button.isConnectedOnLeft(),
                                  ! button.isConnectedOnRight(),
                                  ! button.isConnectedOnLeft(),
                                  ! button.isConnectedOnRight());

        g.fillPath (path);
    }
    else
    {
        g.fillRoundedRectangle (bounds, cornerSize);
    }
}

void ProjucerLookAndFeel::drawButtonText (Graphics& g, TextButton& button, bool isMouseOverButton, bool isButtonDown)
{
    ignoreUnused (isMouseOverButton, isButtonDown);

    g.setFont (getTextButtonFont (button, button.getHeight()));

    g.setColour (button.findColour (button.getToggleState() ? TextButton::textColourOnId
                                                            : TextButton::textColourOffId)
                                   .withMultipliedAlpha (button.isEnabled() ? 1.0f
                                                                            : 0.5f));

    auto xIndent = jmin (8, button.getWidth() / 10);
    auto yIndent = jmin (3,  button.getHeight() / 6);

    auto textBounds = button.getLocalBounds().reduced (xIndent, yIndent);

    g.drawFittedText (button.getButtonText(), textBounds, Justification::centred, 3, 1.0f);
}

void ProjucerLookAndFeel::drawToggleButton (Graphics& g, ToggleButton& button, bool isMouseOverButton, bool isButtonDown)
{
    ignoreUnused (isMouseOverButton, isButtonDown);

    if (! button.isEnabled())
        g.setOpacity (0.5f);

    bool isTextEmpty = button.getButtonText().isEmpty();
    bool isPropertyComponentChild = (dynamic_cast<BooleanPropertyComponent*> (button.getParentComponent()) != nullptr
                                     || dynamic_cast<MultiChoicePropertyComponent*> (button.getParentComponent()) != nullptr);

    auto bounds = button.getLocalBounds();

    auto sideLength = isPropertyComponentChild ? 25 : bounds.getHeight();

    auto rectBounds = isTextEmpty ? bounds
                                  : bounds.removeFromLeft (jmin (sideLength, bounds.getWidth() / 3));

    rectBounds = rectBounds.withSizeKeepingCentre (sideLength, sideLength).reduced (4);

    g.setColour (button.findColour (ToggleButton::tickDisabledColourId));
    g.drawRoundedRectangle (rectBounds.toFloat(), 2.0f, 1.0f);

    if (button.getToggleState())
    {
        g.setColour (button.findColour (ToggleButton::tickColourId));
        const auto tick = getTickShape (0.75f);
        g.fillPath (tick, tick.getTransformToScaleToFit (rectBounds.reduced (2).toFloat(), false));
    }

    if (! isTextEmpty)
    {
        bounds.removeFromLeft (5);

        const auto fontSize = jmin (15.0f, (float) button.getHeight() * 0.75f);

        g.setFont (fontSize);
        g.setColour (isPropertyComponentChild ? findColour (widgetTextColourId)
                                              : button.findColour (ToggleButton::textColourId));

        g.drawFittedText (button.getButtonText(), bounds, Justification::centredLeft, 2);
    }
}

void ProjucerLookAndFeel::fillTextEditorBackground (Graphics& g, int width, int height, TextEditor& textEditor)
{
    g.setColour (textEditor.findColour (TextEditor::backgroundColourId));
    g.fillRect (0, 0, width, height);

    g.setColour (textEditor.findColour (TextEditor::outlineColourId));
    g.drawHorizontalLine (height - 1, 0.0f, static_cast<float> (width));
}

void ProjucerLookAndFeel::layoutFileBrowserComponent (FileBrowserComponent& browserComp,
                                                      DirectoryContentsDisplayComponent* fileListComponent,
                                                      FilePreviewComponent* previewComp,
                                                      ComboBox* currentPathBox,
                                                      TextEditor* filenameBox,
                                                      Button* goUpButton)
{
    const auto sectionHeight = 22;
    const auto buttonWidth = 50;

    auto b = browserComp.getLocalBounds().reduced (20, 5);

    auto topSlice    = b.removeFromTop (sectionHeight);
    auto bottomSlice = b.removeFromBottom (sectionHeight);

    currentPathBox->setBounds (topSlice.removeFromLeft (topSlice.getWidth() - buttonWidth));
    currentPathBox->setColour (ComboBox::backgroundColourId,    findColour (backgroundColourId));
    currentPathBox->setColour (ComboBox::textColourId,          findColour (defaultTextColourId));
    currentPathBox->setColour (ComboBox::arrowColourId,         findColour (defaultTextColourId));

    topSlice.removeFromLeft (6);
    goUpButton->setBounds (topSlice);

    bottomSlice.removeFromLeft (50);
    filenameBox->setBounds (bottomSlice);
    filenameBox->setColour (TextEditor::backgroundColourId, findColour (backgroundColourId));
    filenameBox->setColour (TextEditor::textColourId,       findColour (defaultTextColourId));
    filenameBox->setColour (TextEditor::outlineColourId,    findColour (defaultTextColourId));
    filenameBox->applyFontToAllText (filenameBox->getFont());

    if (previewComp != nullptr)
        previewComp->setBounds (b.removeFromRight (b.getWidth() / 3));

    if (auto listAsComp = dynamic_cast<Component*> (fileListComponent))
        listAsComp->setBounds (b.reduced (0, 10));
}

void ProjucerLookAndFeel::drawFileBrowserRow (Graphics& g, int width, int height,
                                              const File& file, const String& filename, Image* icon,
                                              const String& fileSizeDescription,
                                              const String& fileTimeDescription,
                                              bool isDirectory, bool isItemSelected,
                                              int itemIndex, DirectoryContentsDisplayComponent& dcc)
{
    if (auto fileListComp = dynamic_cast<Component*> (&dcc))
    {
        fileListComp->setColour (DirectoryContentsDisplayComponent::textColourId,
                                 findColour (isItemSelected ? defaultHighlightedTextColourId : defaultTextColourId));

        fileListComp->setColour (DirectoryContentsDisplayComponent::highlightColourId,
                                 findColour (defaultHighlightColourId).withAlpha (0.75f));
    }


    LookAndFeel_V2::drawFileBrowserRow (g, width, height, file, filename, icon,
                                        fileSizeDescription, fileTimeDescription,
                                        isDirectory, isItemSelected, itemIndex, dcc);
}

void ProjucerLookAndFeel::drawCallOutBoxBackground (CallOutBox&, Graphics& g, const Path& path, Image&)
{
    g.setColour (findColour (secondaryBackgroundColourId));
    g.fillPath (path);

    g.setColour (findColour (userButtonBackgroundColourId));
    g.strokePath (path, PathStrokeType (2.0f));
}

void ProjucerLookAndFeel::drawMenuBarBackground (Graphics& g, int width, int height,
                                                 bool, MenuBarComponent& menuBar)
{
    const auto colour = menuBar.findColour (backgroundColourId).withAlpha (0.75f);

    Rectangle<int> r (width, height);

    g.setColour (colour.contrasting (0.15f));
    g.fillRect  (r.removeFromTop (1));
    g.fillRect  (r.removeFromBottom (1));

    g.setGradientFill (ColourGradient (colour, 0, 0, colour.darker (0.2f), 0, (float)height, false));
    g.fillRect (r);
}

void ProjucerLookAndFeel::drawMenuBarItem (Graphics& g, int width, int height,
                                           int itemIndex, const String& itemText,
                                           bool isMouseOverItem, bool isMenuOpen,
                                           bool /*isMouseOverBar*/, MenuBarComponent& menuBar)
{
    if (! menuBar.isEnabled())
    {
        g.setColour (menuBar.findColour (defaultTextColourId)
                            .withMultipliedAlpha (0.5f));
    }
    else if (isMenuOpen || isMouseOverItem)
    {
        g.fillAll   (menuBar.findColour (defaultHighlightColourId).withAlpha (0.75f));
        g.setColour (menuBar.findColour (defaultHighlightedTextColourId));
    }
    else
    {
        g.setColour (menuBar.findColour (defaultTextColourId));
    }

    g.setFont (getMenuBarFont (menuBar, itemIndex, itemText));
    g.drawFittedText (itemText, 0, 0, width, height, Justification::centred, 1);
}

void ProjucerLookAndFeel::drawResizableFrame (Graphics& g, int w, int h, const BorderSize<int>& border)
{
    ignoreUnused (g, w, h, border);
}

void ProjucerLookAndFeel::drawComboBox (Graphics& g, int width, int height, bool,
                                        int, int, int, int, ComboBox& box)
{
    const auto cornerSize = box.findParentComponentOfClass<ChoicePropertyComponent>() != nullptr ? 0.0f : 1.5f;
    Rectangle<int> boxBounds (0, 0, width, height);

    auto isChoiceCompChild = (box.findParentComponentOfClass<ChoicePropertyComponent>() != nullptr);

    if (isChoiceCompChild)
    {
        box.setColour (ComboBox::textColourId, findColour (widgetTextColourId));

        g.setColour (findColour (widgetBackgroundColourId));
        g.fillRect (boxBounds);

        auto arrowZone = boxBounds.removeFromRight (boxBounds.getHeight()).reduced (0, 2).toFloat();
        g.setColour (Colours::black);
        g.fillPath (getChoiceComponentArrowPath (arrowZone));
    }
    else
    {
        g.setColour (box.findColour (ComboBox::outlineColourId));
        g.drawRoundedRectangle (boxBounds.toFloat().reduced (0.5f, 0.5f), cornerSize, 1.0f);

        auto arrowZone = boxBounds.removeFromRight (boxBounds.getHeight()).toFloat();
        g.setColour (box.findColour (ComboBox::arrowColourId).withAlpha ((box.isEnabled() ? 0.9f : 0.2f)));
        g.fillPath (getArrowPath (arrowZone, 2, true, Justification::centred));

    }
}

void ProjucerLookAndFeel::drawTreeviewPlusMinusBox (Graphics& g, const Rectangle<float>& area,
                                                    Colour, bool isOpen, bool /**isMouseOver*/)
{
    g.strokePath (getArrowPath (area, isOpen ? 2 : 1, false, Justification::centredRight), PathStrokeType (2.0f));
}

ProgressBar::Style ProjucerLookAndFeel::getDefaultProgressBarStyle (const ProgressBar&)
{
    return ProgressBar::Style::circular;
}

//==============================================================================
Path ProjucerLookAndFeel::getArrowPath (Rectangle<float> arrowZone, const int direction,
                                        bool filled, const Justification justification)
{
    auto w = jmin (arrowZone.getWidth(),  (direction == 0 || direction == 2) ? 8.0f : filled ? 5.0f : 8.0f);
    auto h = jmin (arrowZone.getHeight(), (direction == 0 || direction == 2) ? 5.0f : filled ? 8.0f : 5.0f);

    if (justification == Justification::centred)
    {
        arrowZone.reduce ((arrowZone.getWidth() - w) / 2, (arrowZone.getHeight() - h) / 2);
    }
    else if (justification == Justification::centredRight)
    {
        arrowZone.removeFromLeft (arrowZone.getWidth() - w);
        arrowZone.reduce (0, (arrowZone.getHeight() - h) / 2);
    }
    else if (justification == Justification::centredLeft)
    {
        arrowZone.removeFromRight (arrowZone.getWidth() - w);
        arrowZone.reduce (0, (arrowZone.getHeight() - h) / 2);
    }
    else
    {
        jassertfalse; // currently only supports centred justifications
    }

    Path path;
    path.startNewSubPath (arrowZone.getX(), arrowZone.getBottom());
    path.lineTo (arrowZone.getCentreX(), arrowZone.getY());
    path.lineTo (arrowZone.getRight(), arrowZone.getBottom());

    if (filled)
        path.closeSubPath();

    path.applyTransform (AffineTransform::rotation ((float) direction * MathConstants<float>::halfPi,
                                                    arrowZone.getCentreX(), arrowZone.getCentreY()));

    return path;
}

Path ProjucerLookAndFeel::getChoiceComponentArrowPath (Rectangle<float> arrowZone)
{
    auto topBounds = arrowZone.removeFromTop (arrowZone.getHeight() * 0.5f);
    auto bottomBounds = arrowZone;

    auto topArrow = getArrowPath (topBounds, 0, true, Justification::centred);
    auto bottomArrow = getArrowPath (bottomBounds, 2, true, Justification::centred);

    topArrow.addPath (bottomArrow);

    return topArrow;
}

//==============================================================================
void ProjucerLookAndFeel::setupColours()
{
    auto& colourScheme = getCurrentColourScheme();

    if (colourScheme == getDarkColourScheme() || colourScheme == getProjucerDarkColourScheme())
    {
        setColour (backgroundColourId,                   Colour (0xff323e44));
        setColour (secondaryBackgroundColourId,          Colour (0xff263238));
        setColour (defaultTextColourId,                  Colours::white);
        setColour (widgetTextColourId,                   Colours::white);
        setColour (defaultButtonBackgroundColourId,      Colour (0xffa45c94));
        setColour (secondaryButtonBackgroundColourId,    Colours::black);
        setColour (userButtonBackgroundColourId,         Colour (0xffa45c94));
        setColour (defaultIconColourId,                  Colours::white);
        setColour (treeIconColourId,                     Colour (0xffa9a9a9));
        setColour (defaultHighlightColourId,             Colour (0xffe0ec65));
        setColour (defaultHighlightedTextColourId,       Colours::black);
        setColour (codeEditorLineNumberColourId,         Colour (0xffaaaaaa));
        setColour (activeTabIconColourId,                Colours::white);
        setColour (inactiveTabBackgroundColourId,        Colour (0xff181f22));
        setColour (inactiveTabIconColourId,              Colour (0xffa9a9a9));
        setColour (contentHeaderBackgroundColourId,      Colours::black);
        setColour (widgetBackgroundColourId,             Colour (0xff495358));
        setColour (secondaryWidgetBackgroundColourId,    Colour (0xff303b41));

        colourScheme = getProjucerDarkColourScheme();
    }
    else if (colourScheme == getGreyColourScheme())
    {
        setColour (backgroundColourId,                   Colour (0xff505050));
        setColour (secondaryBackgroundColourId,          Colour (0xff424241));
        setColour (defaultTextColourId,                  Colours::white);
        setColour (widgetTextColourId,                   Colours::black);
        setColour (defaultButtonBackgroundColourId,      Colour (0xff26ba90));
        setColour (secondaryButtonBackgroundColourId,    Colours::black);
        setColour (userButtonBackgroundColourId,         Colour (0xff26ba90));
        setColour (defaultIconColourId,                  Colours::white);
        setColour (treeIconColourId,                     Colour (0xffa9a9a9));
        setColour (defaultHighlightColourId,             Colour (0xffe0ec65));
        setColour (defaultHighlightedTextColourId,       Colours::black);
        setColour (codeEditorLineNumberColourId,         Colour (0xffaaaaaa));
        setColour (activeTabIconColourId,                Colours::white);
        setColour (inactiveTabBackgroundColourId,        Colour (0xff373737));
        setColour (inactiveTabIconColourId,              Colour (0xffa9a9a9));
        setColour (contentHeaderBackgroundColourId,      Colours::black);
        setColour (widgetBackgroundColourId,             Colours::white);
        setColour (secondaryWidgetBackgroundColourId,    Colour (0xffdddddd));
    }
    else if (colourScheme == getLightColourScheme())
    {
        setColour (backgroundColourId,                   Colour (0xffefefef));
        setColour (secondaryBackgroundColourId,          Colour (0xfff9f9f9));
        setColour (defaultTextColourId,                  Colours::black);
        setColour (widgetTextColourId,                   Colours::black);
        setColour (defaultButtonBackgroundColourId,      Colour (0xff42a2c8));
        setColour (secondaryButtonBackgroundColourId,    Colour (0xffa1c677));
        setColour (userButtonBackgroundColourId,         Colour (0xff42a2c8));
        setColour (defaultIconColourId,                  Colours::white);
        setColour (treeIconColourId,                     Colour (0xffa9a9a9));
        setColour (defaultHighlightColourId,             Colours::orange);
        setColour (defaultHighlightedTextColourId,       Colour (0xff585656));
        setColour (codeEditorLineNumberColourId,         Colour (0xff888888));
        setColour (activeTabIconColourId,                Colour (0xff42a2c8));
        setColour (inactiveTabBackgroundColourId,        Colour (0xffd5d5d5));
        setColour (inactiveTabIconColourId,              Colour (0xffa9a9a9));
        setColour (contentHeaderBackgroundColourId,      Colour (0xff42a2c8));
        setColour (widgetBackgroundColourId,             Colours::white);
        setColour (secondaryWidgetBackgroundColourId,    Colour (0xfff4f4f4));
    }

    setColour (Label::textColourId,                             findColour (defaultTextColourId));
    setColour (Label::textWhenEditingColourId,                  findColour (widgetTextColourId));
    setColour (TextEditor::highlightColourId,                   findColour (defaultHighlightColourId).withAlpha (0.75f));
    setColour (TextEditor::highlightedTextColourId,             findColour (defaultHighlightedTextColourId));
    setColour (TextEditor::outlineColourId,                     Colours::transparentBlack);
    setColour (TextEditor::focusedOutlineColourId,              Colours::transparentBlack);
    setColour (TextEditor::backgroundColourId,                  findColour (widgetBackgroundColourId));
    setColour (TextEditor::textColourId,                        findColour (widgetTextColourId));
    setColour (TextButton::buttonColourId,                      findColour (defaultButtonBackgroundColourId));
    setColour (ScrollBar::ColourIds::thumbColourId,             Colour (0xffd0d8e0));
    setColour (TextPropertyComponent::outlineColourId,          Colours::transparentBlack);
    setColour (TextPropertyComponent::backgroundColourId,       findColour (widgetBackgroundColourId));
    setColour (TextPropertyComponent::textColourId,             findColour (widgetTextColourId));
    setColour (BooleanPropertyComponent::outlineColourId,       Colours::transparentBlack);
    setColour (BooleanPropertyComponent::backgroundColourId,    findColour (widgetBackgroundColourId));
    setColour (ToggleButton::tickDisabledColourId,              Colour (0xffa9a9a9));
    setColour (ToggleButton::tickColourId,                      findColour (defaultButtonBackgroundColourId).withMultipliedBrightness (1.3f));
    setColour (CodeEditorComponent::backgroundColourId,         findColour (secondaryBackgroundColourId));
    setColour (CodeEditorComponent::lineNumberTextId,           findColour (codeEditorLineNumberColourId));
    setColour (CodeEditorComponent::lineNumberBackgroundId,     findColour (backgroundColourId));
    setColour (CodeEditorComponent::highlightColourId,          findColour (defaultHighlightColourId).withAlpha (0.5f));
    setColour (CaretComponent::caretColourId,                   findColour (defaultButtonBackgroundColourId));
    setColour (TreeView::selectedItemBackgroundColourId,        findColour (defaultHighlightColourId));
    setColour (PopupMenu::highlightedBackgroundColourId,        findColour (defaultHighlightColourId).withAlpha (0.75f));
    setColour (PopupMenu::highlightedTextColourId,              findColour (defaultHighlightedTextColourId));
    setColour (ProgressBar::foregroundColourId,                 findColour (defaultButtonBackgroundColourId));
    setColour (0x1000440, /*LassoComponent::lassoFillColourId*/ findColour (defaultHighlightColourId).withAlpha (0.3f));
}