#include "PluginEditor.h"

TerionProcessorEditor::TerionProcessorEditor(TerionProcessor& p)
    : AudioProcessorEditor(p),
      processorRef(p),
      scope(p),
      fadeKnob(*p.apvts.getParameter("fadeTime")),
      sensitivityKnob(*p.apvts.getParameter("sensitivity")),
      dotSizeKnob(*p.apvts.getParameter("dotSize")),
      smoothingKnob(*p.apvts.getParameter("smoothing")),
      afterglowKnob(*p.apvts.getParameter("afterglow"))
{
    setSize(kBaseWidth, kBaseHeight);
    setResizable(true, true);

    addAndMakeVisible(scope);

    // Fade knob
    addAndMakeVisible(fadeKnob);
    fadeKnob.setRange(0.1, 10.0);
    fadeAttachment = std::make_unique<juce::AudioProcessorValueTreeState::SliderAttachment>(
        processorRef.apvts, "fadeTime", fadeKnob);

    // Sensitivity knob
    addAndMakeVisible(sensitivityKnob);
    sensitivityKnob.setRange(-12.0, 24.0);
    sensitivityAttachment = std::make_unique<juce::AudioProcessorValueTreeState::SliderAttachment>(
        processorRef.apvts, "sensitivity", sensitivityKnob);

    // Dot size knob
    addAndMakeVisible(dotSizeKnob);
    dotSizeKnob.setRange(0.5, 8.0);
    dotSizeAttachment = std::make_unique<juce::AudioProcessorValueTreeState::SliderAttachment>(
        processorRef.apvts, "dotSize", dotSizeKnob);

    // Smoothing knob
    addAndMakeVisible(smoothingKnob);
    smoothingKnob.setRange(0.0, 0.99);
    smoothingAttachment = std::make_unique<juce::AudioProcessorValueTreeState::SliderAttachment>(
        processorRef.apvts, "smoothing", smoothingKnob);

    // Afterglow knob
    addAndMakeVisible(afterglowKnob);
    afterglowKnob.setRange(0.0, 5.0);
    afterglowAttachment = std::make_unique<juce::AudioProcessorValueTreeState::SliderAttachment>(
        processorRef.apvts, "afterglow", afterglowKnob);

    // Freeze button
    addAndMakeVisible(freezeButton);
    freezeButton.setButtonText("Freeze");
    freezeButton.setColour(juce::ToggleButton::textColourId, juce::Colour(0xff888899));
    freezeButton.setColour(juce::ToggleButton::tickColourId, juce::Colour(0xff7ecfcf));
    freezeAttachment = std::make_unique<juce::AudioProcessorValueTreeState::ButtonAttachment>(
        processorRef.apvts, "freeze", freezeButton);

    // Mono button
    addAndMakeVisible(monoButton);
    monoButton.setButtonText("Mono");
    monoButton.setColour(juce::ToggleButton::textColourId, juce::Colour(0xff888899));
    monoButton.setColour(juce::ToggleButton::tickColourId, juce::Colour(0xff7ecfcf));
    monoAttachment = std::make_unique<juce::AudioProcessorValueTreeState::ButtonAttachment>(
        processorRef.apvts, "mono", monoButton);

    // Scale dropdown
    addAndMakeVisible(scaleBox);
    scaleBox.addItem("100%", 1);
    scaleBox.addItem("125%", 2);
    scaleBox.addItem("150%", 3);
    scaleBox.addItem("200%", 4);
    scaleBox.addItem("250%", 5);
    scaleBox.addItem("300%", 6);
    scaleBox.setSelectedId(3, juce::dontSendNotification);
    scaleBox.onChange = [this] { scaleChanged(); };
    scaleChanged();

    // After any scale change, recompute the resize limits.
    const int maxDim = static_cast<int>(kBaseWidth * kMaxScale);
    setResizeLimits(kBaseWidth, kBaseHeight, maxDim, maxDim);

    // Knob labels (separate from knobs to ensure correct z-order)
    auto setupLabel = [this](juce::Label& label, const juce::String& text)
    {
        addAndMakeVisible(label);
        label.setText(text, juce::dontSendNotification);
        label.setJustificationType(juce::Justification::centredTop);
        label.setColour(juce::Label::textColourId, juce::Colour(0xff888899));
        label.setInterceptsMouseClicks(false, false);
    };
    setupLabel(fadeLabel, fadeKnob.getParameterName());
    setupLabel(sensitivityLabel, sensitivityKnob.getParameterName());
    setupLabel(dotSizeLabel, dotSizeKnob.getParameterName());
    setupLabel(smoothingLabel, smoothingKnob.getParameterName());
    setupLabel(afterglowLabel, afterglowKnob.getParameterName());
}

TerionProcessorEditor::~TerionProcessorEditor() {}

void TerionProcessorEditor::scaleChanged()
{
    int id = scaleBox.getSelectedId();
    switch (id)
    {
        case 1: currentScale = 1.0f; break;
        case 2: currentScale = 1.25f; break;
        case 3: currentScale = 1.5f; break;
        case 4: currentScale = 2.0f; break;
        case 5: currentScale = 2.5f; break;
        case 6: currentScale = 3.0f; break;
        default: currentScale = 1.5f; break;
    }

    const int maxDim = static_cast<int>(kBaseWidth * kMaxScale);
    setResizeLimits(kBaseWidth, kBaseHeight, maxDim, maxDim);
    scope.setScale(currentScale);
    setSize(static_cast<int>(kBaseWidth * currentScale),
            static_cast<int>(kBaseHeight * currentScale));
}

void TerionProcessorEditor::paint(juce::Graphics& g)
{
    g.fillAll(juce::Colour(0xff0a0a0f));

    const float s = currentScale;
    const int footerH = static_cast<int>(kFooterHeight * s);

    // Footer
    auto bounds = getLocalBounds();
    auto footer = bounds.removeFromBottom(footerH);

    g.setColour(juce::Colour(0xff15151e));
    g.fillRect(footer);

    g.setColour(juce::Colour(0xff555566));
    g.setFont(juce::Font(juce::FontOptions(9.0f * s)));

    juce::String footerText = "Terion (Git: "
        + juce::String(TERION_GIT_HASH)
        + ", " + juce::String(TERION_GIT_DIRTY)
        + ") | built: " + juce::String(TERION_BUILD_TIME);

    g.drawFittedText(footerText, footer.reduced(static_cast<int>(10.0f * s), 0),
                     juce::Justification::centredLeft, 1);
}

void TerionProcessorEditor::resized()
{
    const float s = currentScale;
    const int footerH = static_cast<int>(kFooterHeight * s);
    const int knobs = static_cast<int>(kKnobSize * s);
    const int margin = static_cast<int>(kKnobMargin * s);
    const int scaleW = static_cast<int>(76.0f * s);
    const int gap = static_cast<int>(8.0f * s);

    auto bounds = getLocalBounds();
    auto footer = bounds.removeFromBottom(footerH);

    // Footer: scale dropdown with an 8px gap on the top and right
    scaleBox.setBounds(footer.getWidth() - scaleW - gap, gap, scaleW, footerH - 2 - gap);

    // Scope fills the remaining area
    scope.setBounds(bounds);

    // Controls layout: knob row sits 8px above the footer, Freeze/Mono stay top-right
    const int numKnobs = 5;
    const int rowH = knobs + static_cast<int>(12.0f * s) - static_cast<int>(6.0f * s);
    const int startX = bounds.getWidth() - (numKnobs * (knobs + margin) + knobs + margin);
    const int startY = bounds.getHeight() - rowH - gap;

    fadeKnob.setBounds(startX, startY, knobs, knobs);
    sensitivityKnob.setBounds(startX + (knobs + margin), startY, knobs, knobs);
    dotSizeKnob.setBounds(startX + 2 * (knobs + margin), startY, knobs, knobs);
    smoothingKnob.setBounds(startX + 3 * (knobs + margin), startY, knobs, knobs);
    afterglowKnob.setBounds(startX + 4 * (knobs + margin), startY, knobs, knobs);
    const int freezeY = static_cast<int>(20.0f * s);
    const int freezeH = knobs - static_cast<int>(20.0f * s);
    freezeButton.setBounds(bounds.getWidth() - knobs - margin, freezeY, knobs, freezeH);
    monoButton.setBounds(bounds.getWidth() - knobs - margin, freezeY + freezeH + gap,
                         knobs, freezeH);

    const int labelY = startY + knobs - static_cast<int>(6.0f * s);
    const int labelH = static_cast<int>(12.0f * s);
    const float labelFont = 9.0f * s;
    fadeLabel.setBounds(fadeKnob.getX(), labelY, knobs, labelH);
    fadeLabel.setFont(juce::Font(juce::FontOptions(labelFont)));
    sensitivityLabel.setBounds(sensitivityKnob.getX(), labelY, knobs, labelH);
    sensitivityLabel.setFont(juce::Font(juce::FontOptions(labelFont)));
    dotSizeLabel.setBounds(dotSizeKnob.getX(), labelY, knobs, labelH);
    dotSizeLabel.setFont(juce::Font(juce::FontOptions(labelFont)));
    smoothingLabel.setBounds(smoothingKnob.getX(), labelY, knobs, labelH);
    smoothingLabel.setFont(juce::Font(juce::FontOptions(labelFont)));
    afterglowLabel.setBounds(afterglowKnob.getX(), labelY, knobs, labelH);
    afterglowLabel.setFont(juce::Font(juce::FontOptions(labelFont)));
}