#include "GrainControlPanel.h"

GrainControlPanel::GrainControlPanel()
{
    titleLabel.setText ("GRAIN", juce::dontSendNotification);
    titleLabel.setJustificationType (juce::Justification::centredLeft);
    titleLabel.setColour (juce::Label::textColourId, InstaGrainLookAndFeel::textPrimary);
    addAndMakeVisible (titleLabel);

    setupKnob (positionKnob, posLabel, "Position", 0.0, 1.0, 0.5);
    setupKnob (sizeKnob, sizeLabel, "Size", 10.0, 500.0, 100.0, " ms");
    setupKnob (densityKnob, densityLabel, "Density", 1.0, 100.0, 10.0, " g/s");
    setupKnob (pitchKnob, pitchLabel, "Pitch", -24.0, 24.0, 0.0, " st");
    setupKnob (panKnob, panLabel, "Pan", -1.0, 1.0, 0.0);

    // Root Note selector (MIDI 0-127)
    const char* noteNames[] = { "C", "C#", "D", "D#", "E", "F", "F#", "G", "G#", "A", "A#", "B" };
    for (int i = 0; i <= 127; ++i)
    {
        int octave = (i / 12) - 1;
        juce::String name = juce::String (noteNames[i % 12]) + juce::String (octave);
        rootNoteBox.addItem (name, i + 1);  // ComboBox IDs start at 1
    }
    rootNoteBox.setSelectedId (60 + 1);  // Default: C4
    addAndMakeVisible (rootNoteBox);

    rootNoteLabel.setText ("Root", juce::dontSendNotification);
    rootNoteLabel.setJustificationType (juce::Justification::centred);
    rootNoteLabel.setColour (juce::Label::textColourId, InstaGrainLookAndFeel::textSecondary);
    addAndMakeVisible (rootNoteLabel);
}

void GrainControlPanel::setupKnob (juce::Slider& knob, juce::Label& label, const juce::String& name,
                                    double min, double max, double def, const juce::String& suffix)
{
    knob.setSliderStyle (juce::Slider::RotaryHorizontalVerticalDrag);
    knob.setTextBoxStyle (juce::Slider::TextBoxBelow, false, 60, 14);
    knob.setRange (min, max);
    knob.setValue (def);
    knob.setTextValueSuffix (suffix);
    knob.getProperties().set (InstaGrainLookAndFeel::knobTypeProperty, "orange");
    addAndMakeVisible (knob);

    label.setText (name, juce::dontSendNotification);
    label.setJustificationType (juce::Justification::centred);
    label.setColour (juce::Label::textColourId, InstaGrainLookAndFeel::textSecondary);
    addAndMakeVisible (label);
}

void GrainControlPanel::resized()
{
    auto bounds = getLocalBounds().reduced (4);
    titleLabel.setBounds (bounds.removeFromTop (20));

    int knobW = bounds.getWidth() / 6;
    int knobH = bounds.getHeight() - 16;

    auto row = bounds.removeFromTop (knobH);

    juce::Slider* knobs[] = { &positionKnob, &sizeKnob, &densityKnob, &pitchKnob, &panKnob };
    juce::Label* labels[] = { &posLabel, &sizeLabel, &densityLabel, &pitchLabel, &panLabel };

    for (int i = 0; i < 5; ++i)
    {
        auto col = row.removeFromLeft (knobW);
        knobs[i]->setBounds (col.reduced (2));
        labels[i]->setBounds (col.getX(), col.getBottom() - 2, col.getWidth(), 16);
    }

    // Root Note combo in the remaining space
    auto rootCol = row;
    rootNoteLabel.setBounds (rootCol.removeFromTop (14));
    rootNoteBox.setBounds (rootCol.reduced (4, 2).removeFromTop (24));
}

void GrainControlPanel::paint (juce::Graphics& g)
{
    auto bounds = getLocalBounds().toFloat();
    g.setColour (InstaGrainLookAndFeel::bgMedium.withAlpha (0.5f));
    g.fillRoundedRectangle (bounds, 4.0f);
    g.setColour (InstaGrainLookAndFeel::bgLight.withAlpha (0.3f));
    g.drawRoundedRectangle (bounds, 4.0f, 1.0f);
}