#include "ToggleButton.h"

namespace serum
{

ToggleButton::ToggleButton (const juce::String& lbl) : label (lbl)
{
    setRepaintsOnMouseActivity (true);
}

void ToggleButton::attach (juce::AudioProcessorValueTreeState& apvts, const juce::String& paramId)
{
    param = apvts.getParameter (paramId);
    if (param != nullptr)
    {
        state = param->getValue() > 0.5f;
        attachment = std::make_unique<juce::ParameterAttachment> (*param,
            [this] (float newValue) { setToggleState (newValue > 0.5f); });
    }
}

void ToggleButton::setToggleState (bool s)
{
    if (state == s)
        return;
    state = s;
    repaint();
}

void ToggleButton::paint (juce::Graphics& g)
{
    const auto bounds = getLocalBounds().toFloat();
    const float ledSize = juce::jmin (bounds.getHeight() - 16.0f, 16.0f);
    const juce::Rectangle<float> led ((bounds.getWidth() - ledSize) * 0.5f, 4.0f, ledSize, ledSize);

    if (state)
    {
        g.setColour (onColour.withAlpha (0.35f));
        g.fillEllipse (led.expanded (6.0f));
        g.setColour (onColour);
    }
    else
    {
        g.setColour (theme::outline);
    }
    g.fillEllipse (led);
    g.setColour (state ? juce::Colours::black : theme::textDim);
    g.drawEllipse (led, 1.0f);

    g.setColour (state ? theme::text : theme::textDim);
    g.setFont (juce::Font (11.0f));
    g.drawText (label, 0, (int) (led.getBottom() + 2), getWidth(), 14, juce::Justification::centred, false);
}

void ToggleButton::mouseDown (const juce::MouseEvent&)
{
    const bool newState = ! state;

    if (onClick)
    {
        onClick (newState);
    }
    else if (param != nullptr)
    {
        param->setValueNotifyingHost (newState ? 1.0f : 0.0f);
    }

    setToggleState (newState);
}

} // namespace serum