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#include <QDebug>

#include <QPainter>

#include <QPixmapCache>

#include <QSvgRenderer>

#include "theme.h"

Q_DECLARE_METATYPE(Theme::Themes*)

Theme::Theme(QObject *parent)

  : QObject(parent)

  , m_currentTheme()

  , m_availableThemes()

  , m_fonts()

  , m_pixmapPath()

  , m_listItemBackgroundBrushEven()

  , m_listItemBackgroundOpacityEven()

  , m_listItemBackgroundBrushOdd()

  , m_listItemBackgroundOpacityOdd()

  , m_listItemBorderPen(QPen())

  , m_listItemRounding()

#if (QT_VERSION >= 0x040600)

  , m_iconOpacityEffectEnabled()

#endif

  , m_iconRotation()

  , m_iconSmoothTransformation()

{

    m_availableThemes << "Blue" << "Lime";

    // Set blue theme as a default theme without emiting themeChanged() signal

    setBlueTheme();

}

Theme::~Theme()

{

}

Theme* Theme::p()

{

    static Theme t;

    return &t;

}

void Theme::setTheme(const QString theme)

{

    if (theme.compare("blue", Qt::CaseInsensitive) == 0)

    {

        setTheme(Theme::Blue);

    }

    else if (theme.compare("lime", Qt::CaseInsensitive) == 0)

    {

        setTheme(Theme::Lime);

    }

    else

    {

        qDebug() << "Unknown theme";

    }

}

void Theme::setTheme(const Themes theme)

{

    if (m_currentTheme == theme)

        return;

    switch (theme)

    {

        case Theme::Blue:

            setBlueTheme();

            emit themeChanged();

            break;

        case Theme::Lime:

            setLimeTheme();

            emit themeChanged();

            break;

    }

}

void Theme::setBlueTheme()

{

    m_currentTheme = Theme::Blue;

    m_fonts[ContactName].setFamily("Arial");

    m_fonts[ContactName].setPixelSize(16);

    m_fonts[ContactName].setStyle(QFont::StyleNormal);

    m_fonts[ContactName].setWeight(QFont::Normal);

    m_fonts[ContactNumber].setFamily("Arial");

    m_fonts[ContactNumber].setPixelSize(14);

    m_fonts[ContactNumber].setStyle(QFont::StyleNormal);

    m_fonts[ContactEmail].setFamily("Arial");

    m_fonts[ContactEmail].setPixelSize(14);

    m_fonts[ContactEmail].setStyle(QFont::StyleNormal);

    m_fonts[TitleBar].setFamily("Arial");

    m_fonts[TitleBar].setPixelSize(36);

    m_fonts[TitleBar].setStyle(QFont::StyleNormal);

    m_fonts[StatusBar].setFamily("Arial");

    m_fonts[StatusBar].setPixelSize(16);

    m_fonts[StatusBar].setStyle(QFont::StyleNormal);

    m_fonts[MenuItem].setFamily("Arial");

    m_fonts[MenuItem].setPixelSize(14);

    m_fonts[MenuItem].setStyle(QFont::StyleNormal);

    m_pixmapPath = ":/themes/blue/";

    m_listItemBackgroundBrushEven = QBrush(Qt::NoBrush);

    m_listItemBackgroundOpacityEven = 1.0;

    m_listItemBackgroundBrushOdd = QBrush(QColor(44,214,250), Qt::SolidPattern);

    m_listItemBackgroundOpacityOdd = 1.0;

    m_listItemBorderPen = QPen(Qt::NoPen);

    m_listItemRounding = QSize(0.0, 0.0);

#if (QT_VERSION >= 0x040600)

    m_iconOpacityEffectEnabled[ListItem::LeftIcon] = false;

    m_iconOpacityEffectEnabled[ListItem::RightIcon] = false;

#endif

    m_iconRotation[ListItem::LeftIcon] =  0.0;

    m_iconRotation[ListItem::RightIcon] = 0.0;

    m_iconSmoothTransformation[ListItem::LeftIcon] = false;

    m_iconSmoothTransformation[ListItem::RightIcon] = false;

}

void Theme::setLimeTheme()

{

    m_currentTheme = Theme::Lime;

    m_fonts[ContactName].setFamily("Arial");

    m_fonts[ContactName].setPixelSize(16);

    m_fonts[ContactName].setStyle(QFont::StyleItalic);

    m_fonts[ContactName].setWeight(QFont::Bold);

    m_fonts[ContactNumber].setFamily("Arial");

    m_fonts[ContactNumber].setPixelSize(14);

    m_fonts[ContactNumber].setStyle(QFont::StyleItalic);

    m_fonts[ContactEmail].setFamily("Arial");

    m_fonts[ContactEmail].setPixelSize(14);

    m_fonts[ContactEmail].setStyle(QFont::StyleItalic);

    m_fonts[TitleBar].setFamily("Arial");

    m_fonts[TitleBar].setPixelSize(36);

    m_fonts[TitleBar].setStyle(QFont::StyleItalic);

    m_fonts[StatusBar].setFamily("Arial");

    m_fonts[StatusBar].setPixelSize(16);

    m_fonts[StatusBar].setStyle(QFont::StyleItalic);

    m_fonts[MenuItem].setFamily("Arial");

    m_fonts[MenuItem].setPixelSize(14);

    m_fonts[MenuItem].setStyle(QFont::StyleItalic);

    m_pixmapPath = ":/themes/lime/";

    m_listItemBackgroundBrushEven = QBrush(QPixmap(":/avatars/avatar_014.png"));

    m_listItemBackgroundOpacityEven = 0.05;

    m_listItemBackgroundBrushOdd = QBrush(QPixmap(":/avatars/avatar_012.png"));

    m_listItemBackgroundOpacityOdd = 0.15;

    m_listItemBorderPen = QPen(QColor(0,0,0,55), 3, Qt::SolidLine);

    m_listItemRounding = QSize(12.0, 12.0);

#if (QT_VERSION >= 0x040600)

    m_iconOpacityEffectEnabled[ListItem::LeftIcon] = true;

    m_iconOpacityEffectEnabled[ListItem::RightIcon] = false;

#endif

    m_iconRotation[ListItem::LeftIcon] = -4.0;

    m_iconRotation[ListItem::RightIcon] = 0.0;

    m_iconSmoothTransformation[ListItem::LeftIcon] = true;

    m_iconSmoothTransformation[ListItem::RightIcon] = false;

}

QPixmap Theme::pixmap(const QString filename, QSize size)

{

    if (filename.endsWith(".svg", Qt::CaseInsensitive))

    {

        QSvgRenderer doc(m_pixmapPath+filename);

        if (size == QSize(0,0))

            size = doc.defaultSize();

        QPixmap pix(size.width(),size.height());

        pix.fill(Qt::transparent);

        QPainter painter(&pix);

        painter.setViewport(0, 0, size.width(), size.height());

        doc.render(&painter);

        return pix;

    }

    else

    {

        QPixmap pix(m_pixmapPath+filename);

        return pix.scaled(size);

    }

}