#include "PluginProcessor.h"
#include "PluginEditor.h"
#include "BuildInfo.h"

static constexpr int Y_HEADER = 8;
static constexpr int Y_SLABEL1 = 46;
static constexpr int Y_ROW1 = 64;
static constexpr int Y_SLABEL2 = 164;
static constexpr int Y_ROW2 = 182;
static constexpr int Y_SEP = 282;
static constexpr int Y_VIZ = 286;

static constexpr int SEC_TIME = 8;
static constexpr int SEC_FREQUENCY = 254;
static constexpr int SEC_DIFFUSION = 418;
static constexpr int SEC_STEREO = 664;
static constexpr int SEC_CHARACTER = 746;
static constexpr int SEP_TF = 245;
static constexpr int SEP_FD = 409;
static constexpr int SEP_DS = 655;
static constexpr int SEP_SC = 737;

// -----------------------------------------------------------------------------
//  EditorContent
// -----------------------------------------------------------------------------
// constructor
// -----------------------------------------------------------------------------
EditorContent::EditorContent(FDNReverbAudioProcessor& p, AmbivalenceLookAndFeel& laf)
    : vuIn("IN", VUMeter::Side::Input),
    vuOut("OUT", VUMeter::Side::Output)
{
    setOpaque(true);
    lookAndFeel = &laf;

     // -- Title --
    titleLabel.setText("AMBIVALENCE", juce::dontSendNotification);
    titleLabel.setFont(juce::Font(juce::FontOptions(
        "Helvetica Neue", 24.f, juce::Font::bold)));
    titleLabel.setColour(juce::Label::textColourId, AmbivalenceColors::TextPrimary);
    titleLabel.setJustificationType(juce::Justification::centredLeft);
    addAndMakeVisible(titleLabel);

    auto BK = [&](ArcKnob& k, const char* id, const char* lbl) {
        k.build(p.apvts, id, lbl, this, laf);
        };

    BK(kPreDelay, "predelay", "PRE-DELAY");
    BK(kRoomSize, "roomsize", "ROOM SIZE");
    BK(kDecay, "decaytime", "DECAY");
    BK(kHFDamp, "hfdamping", "HF DAMP");
    BK(kLFAbsorb, "lfabsorption", "LF ABSORB");
    BK(kDiffusion, "diffusion", "DIFFUSION");
    BK(kModAmt, "modamount", "MOD AMT");
    BK(kModRate, "modrate", "MOD RATE");
    BK(kStereoW, "stereowidth", "WIDTH");
    BK(kERLevel, "erlevel", "ER LEVEL");
    BK(kSaturation, "saturation", "SATURATE");
    BK(kWet, "wetlevel", "WET");
    BK(kDry, "drylevel", "DRY");
    BK(kDuckAmt, "duckamount", "AMOUNT");
    BK(kDuckThr, "duckthresh", "THRESH");
    BK(kDuckAtt, "duckattack", "ATTACK");
    BK(kDuckRel, "duckrelease", "RELEASE");
    BK(kLoCutNorm, "locut", "LO CUT");
    BK(kHiCutNorm, "hicut", "HI CUT");

     // -- ProMode button --
    proModeButton.setButtonText("EQ");
    proModeButton.setClickingTogglesState(true);
    proModeButton.setColour(juce::TextButton::buttonOnColourId, AmbivalenceColors::Accent);
    proModeButton.setColour(juce::TextButton::buttonColourId, AmbivalenceColors::Surface);
    proModeButton.setColour(juce::TextButton::textColourOnId, AmbivalenceColors::Background);
    proModeButton.setColour(juce::TextButton::textColourOffId, AmbivalenceColors::TextSecondary);
    addAndMakeVisible(proModeButton);
    proModeAttachment.reset(
        new juce::AudioProcessorValueTreeState::ButtonAttachment(
            p.apvts, "promode", proModeButton));

     // -- Zoom menu button --
    zoomButton.setButtonText(juce::String(
        juce::roundToInt(EditorContent::kDefaultZoom * 100.f)) + "%");
    zoomButton.setColour(juce::TextButton::buttonColourId, AmbivalenceColors::Surface);
    zoomButton.setColour(juce::TextButton::textColourOffId, AmbivalenceColors::TextPrimary);
    zoomButton.setTooltip("UI zoom");
    addAndMakeVisible(zoomButton);

     // -- ER SOLO button --
    erSoloButton.setButtonText("ER ONLY");
    erSoloButton.setClickingTogglesState(true);
    erSoloButton.setColour(juce::TextButton::buttonOnColourId, AmbivalenceColors::AccentBlue);
    erSoloButton.setColour(juce::TextButton::buttonColourId, AmbivalenceColors::Surface);
    erSoloButton.setColour(juce::TextButton::textColourOnId, AmbivalenceColors::Background);
    erSoloButton.setColour(juce::TextButton::textColourOffId, AmbivalenceColors::TextSecondary);
    addAndMakeVisible(erSoloButton);
    erSoloAttachment.reset(
        new juce::AudioProcessorValueTreeState::ButtonAttachment(
            p.apvts, "ersolo", erSoloButton));

     // -- ProMode: RT60 band --
    static const char* rtBandIDs[] = {
        "rtband0","rtband1","rtband2","rtband3","rtband4",
        "rtband5","rtband6","rtband7","rtband8","rtband9"
    };
    static const char* rtBandLbls[] = {
        "31Hz","63Hz","125Hz","250Hz","500Hz",
        "1kHz","2kHz","4kHz","8kHz","16kHz"
    };
    for (int i = 0; i < 10; ++i)
        kRTBands[i].build(p.apvts, rtBandIDs[i], rtBandLbls[i], this, laf);

     // -- ProMode: SatType --
    satTypeLabel.setText("SAT TYPE", juce::dontSendNotification);
    satTypeLabel.setFont(juce::Font(juce::FontOptions(9.f)));
    satTypeLabel.setColour(juce::Label::textColourId, AmbivalenceColors::TextSecondary);
    satTypeLabel.setJustificationType(juce::Justification::centred);
    addAndMakeVisible(satTypeLabel);

    satTypeCombo.addItemList({ "Warm","Tape","Tube","Hard" }, 1);
    satTypeCombo.setLookAndFeel(&laf);
    addAndMakeVisible(satTypeCombo);
    satTypeAttachment.reset(
        new juce::AudioProcessorValueTreeState::ComboBoxAttachment(
            p.apvts, "sattype", satTypeCombo));

     // -- ProMode: Tilt EQ + Output EQ --
    BK(kTiltLow, "tiltlow", "TILT LOW");
    BK(kTiltMid, "tiltmid", "TILT MID");
    BK(kTiltHigh, "tilthigh", "TILT HIGH");
    BK(kLoCutPro, "locut", "LO CUT");
    BK(kHiCutPro, "hicut", "HI CUT");

     // -- Visualizers --
    decayCurveViz.setProcessor(&p);
    addAndMakeVisible(decayCurveViz);

    addAndMakeVisible(vuIn);
    addAndMakeVisible(vuOut);

     // -- AcousticMetrics --
    labelMetricsTitle.setText("ACOUSTICS", juce::dontSendNotification);
    labelMetricsTitle.setFont(juce::Font(juce::FontOptions(
        "Helvetica Neue", 8.5f, juce::Font::bold)));
    labelMetricsTitle.setColour(juce::Label::textColourId,
        AmbivalenceColors::Accent.withAlpha(0.75f));
    labelMetricsTitle.setJustificationType(juce::Justification::centredLeft);
    addAndMakeVisible(labelMetricsTitle);

    auto setupCaption = [this](juce::Label& label, const juce::String& text) {
        label.setText(text, juce::dontSendNotification);
        label.setFont(juce::Font(juce::FontOptions(
            "Helvetica Neue", 8.0f, juce::Font::plain)));
        label.setColour(juce::Label::textColourId,
            AmbivalenceColors::TextSecondary.withAlpha(0.85f));
        label.setJustificationType(juce::Justification::centredRight);
        addAndMakeVisible(label);
        };
    auto setupValue = [this](juce::Label& label) {
        label.setText("--", juce::dontSendNotification);
        label.setFont(juce::Font(juce::FontOptions(
            "Helvetica Neue", 9.5f, juce::Font::bold)));
        label.setColour(juce::Label::textColourId, AmbivalenceColors::TextPrimary);
        label.setJustificationType(juce::Justification::centredLeft);
        addAndMakeVisible(label);
        };

    setupCaption(labelD50Caption, "D50:");
    setupCaption(labelC50Caption, "C50:");
    setupCaption(labelC80Caption, "C80:");
    setupCaption(labelEDTCaption, "EDT:");
    setupValue(labelD50Value);
    setupValue(labelC50Value);
    setupValue(labelC80Value);
    setupValue(labelEDTValue);

     // -- Git build info --
    juce::String gitInfo = "Git: " + juce::String(AMBIVALENCE_GIT_BRANCH) + " @ " +
        juce::String(AMBIVALENCE_GIT_COMMIT);
#if AMBIVALENCE_GIT_DIRTY
    gitInfo += " (dirty)";
#endif
    gitInfo += "  |  Build: " + juce::String(__DATE__) + " " + juce::String(__TIME__) + " (local)";

    statusLabel.setText(gitInfo, juce::dontSendNotification);
    statusLabel.setFont(juce::Font(juce::FontOptions(
        "Helvetica Neue", 8.5f, juce::Font::plain)));
    statusLabel.setColour(juce::Label::textColourId,
        AmbivalenceColors::TextSecondary.withAlpha(0.6f));
    statusLabel.setJustificationType(juce::Justification::centredRight);
    addAndMakeVisible(statusLabel);

     // -- Preset UI (wiring is done by the editor) --
    addAndMakeVisible(presetPrevButton);
    addAndMakeVisible(presetCombo);
    addAndMakeVisible(presetNextButton);
    addAndMakeVisible(presetSaveButton);
    addAndMakeVisible(presetLoadButton);
    addAndMakeVisible(presetDeleteButton);

    updatePanelVisibility();
}

// -----------------------------------------------------------------------------
//  EditorContent::updatePanelVisibility
// -----------------------------------------------------------------------------
void EditorContent::updatePanelVisibility()
{
    auto setKnob = [](ArcKnob& k, bool vis) {
        k.slider.setVisible(vis);
        k.label.setVisible(vis);
        };

    const bool showNormal = !proMode;
    const bool showPro = proMode;

    setKnob(kPreDelay, showNormal);
    setKnob(kRoomSize, showNormal);
    setKnob(kDecay, showNormal);
    setKnob(kHFDamp, showNormal);
    setKnob(kLFAbsorb, showNormal);
    setKnob(kDiffusion, showNormal);
    setKnob(kModAmt, showNormal);
    setKnob(kModRate, showNormal);
    setKnob(kStereoW, showNormal);
    setKnob(kERLevel, showNormal);
    setKnob(kSaturation, showNormal);
    setKnob(kWet, showNormal);
    setKnob(kDry, showNormal);
    setKnob(kDuckAmt, showNormal);
    setKnob(kDuckThr, showNormal);
    setKnob(kDuckAtt, showNormal);
    setKnob(kDuckRel, showNormal);
    setKnob(kLoCutNorm, showNormal);
    setKnob(kHiCutNorm, showNormal);

    for (auto& k : kRTBands) setKnob(k, showPro);
    satTypeLabel.setVisible(showPro);
    satTypeCombo.setVisible(showPro);
    setKnob(kTiltLow, showPro);
    setKnob(kTiltMid, showPro);
    setKnob(kTiltHigh, showPro);
    setKnob(kLoCutPro, showPro);
    setKnob(kHiCutPro, showPro);

     // preset UI always visible
    presetPrevButton.setVisible(true);
    presetCombo.setVisible(true);
    presetNextButton.setVisible(true);
    presetSaveButton.setVisible(true);
    presetLoadButton.setVisible(true);
    presetDeleteButton.setVisible(true);
}

// -----------------------------------------------------------------------------
//  EditorContent::setProMode
// -----------------------------------------------------------------------------
void EditorContent::setProMode(bool pro)
{
    if (proMode == pro)
        return;

    proMode = pro;
    updatePanelVisibility();
    resized();
    repaint();
}

// -----------------------------------------------------------------------------
//  EditorContent::resized
// -----------------------------------------------------------------------------
void EditorContent::resized()
{
    uiScale = getWidth() > 0 ? (float)getWidth() / (float)W : 1.0f;

     // scale fonts that are set explicitly (knob/button/combo fonts handled
     // via the LookAndFeel which already has the same uiScale pushed to it).
    auto labelFont = [this](float h, int style = juce::Font::plain) {
        return juce::Font(juce::FontOptions("Helvetica Neue", h * uiScale, style));
        };

    titleLabel.setFont(labelFont(24.f, juce::Font::bold));
    satTypeLabel.setFont(labelFont(9.f));
    labelMetricsTitle.setFont(labelFont(8.5f, juce::Font::bold));
    labelD50Caption.setFont(labelFont(8.f));
    labelC50Caption.setFont(labelFont(8.f));
    labelC80Caption.setFont(labelFont(8.f));
    labelEDTCaption.setFont(labelFont(8.f));
    labelD50Value.setFont(labelFont(9.5f, juce::Font::bold));
    labelC50Value.setFont(labelFont(9.5f, juce::Font::bold));
    labelC80Value.setFont(labelFont(9.5f, juce::Font::bold));
    labelEDTValue.setFont(labelFont(9.5f, juce::Font::bold));
    statusLabel.setFont(labelFont(8.5f));

    ArcKnob* knobs[] = {
        &kPreDelay, &kRoomSize, &kDecay,
        &kHFDamp, &kLFAbsorb,
        &kDiffusion, &kModAmt, &kModRate,
        &kStereoW,
        &kERLevel, &kSaturation,
        &kWet, &kDry,
        &kDuckAmt, &kDuckThr, &kDuckAtt, &kDuckRel,
        &kLoCutNorm, &kHiCutNorm,
        &kRTBands[0], &kRTBands[1], &kRTBands[2], &kRTBands[3], &kRTBands[4],
        &kRTBands[5], &kRTBands[6], &kRTBands[7], &kRTBands[8], &kRTBands[9],
        &kTiltLow, &kTiltMid, &kTiltHigh,
        &kLoCutPro, &kHiCutPro
    };
    for (auto* k : knobs)
        k->label.setFont(labelFont(9.f));

    if (lookAndFeel != nullptr)
        lookAndFeel->zoomScale = uiScale;
    decayCurveViz.setZoomScale(uiScale);

     // layout is written in fixed design coords (W x H); S() maps to the
     // actual component size so no host-hostile setTransform is needed.
    auto S = [this](int x, int y, int w, int h) {
        return juce::Rectangle<int>(juce::roundToInt(x * uiScale),
            juce::roundToInt(y * uiScale),
            juce::roundToInt(w * uiScale),
            juce::roundToInt(h * uiScale));
        };

    titleLabel.setBounds(S(PAD, Y_HEADER - 6, 300, 44));
    proModeButton.setBounds(S(316, Y_HEADER + 5, 52, 22));
    erSoloButton.setBounds(S(376, Y_HEADER + 5, 72, 22));
    vuIn.setBounds(S(W - 220, Y_HEADER + 2, 96, 28));
    vuOut.setBounds(S(W - 120, Y_HEADER + 2, 96, 28));
    zoomButton.setBounds(S(W - 272, Y_HEADER + 5, 48, 22));

    auto place1 = [&](ArcKnob& k, int& x, int y) {
        k.label.setBounds(S(x, y, KNOB_W, KNOB_LBL_H));
        k.slider.setBounds(S(x, y + KNOB_LBL_H, KNOB_W, KNOB_H));
        x += KNOB_W + ROW1_GAP;
        };
    auto place2 = [&](ArcKnob& k, int& x, int y) {
        k.label.setBounds(S(x, y, KNOB_W, KNOB_LBL_H));
        k.slider.setBounds(S(x, y + KNOB_LBL_H, KNOB_W, KNOB_H));
        x += KNOB_W + PAD;
        };

    if (!proMode) {
         // -- Row 1 --
        int kx = PAD;
        place1(kPreDelay, kx, Y_ROW1);
        place1(kRoomSize, kx, Y_ROW1);
        place1(kDecay, kx, Y_ROW1);
        place1(kHFDamp, kx, Y_ROW1);
        place1(kLFAbsorb, kx, Y_ROW1);
        place1(kDiffusion, kx, Y_ROW1);
        place1(kModAmt, kx, Y_ROW1);
        place1(kModRate, kx, Y_ROW1);
        place1(kStereoW, kx, Y_ROW1);
        place1(kERLevel, kx, Y_ROW1);
        place1(kSaturation, kx, Y_ROW1);

         // -- Row 2: MIX | OUT EQ | DUCKING --
        kx = PAD;
        place2(kWet, kx, Y_ROW2);
        place2(kDry, kx, Y_ROW2);
        kx += 16;
        place2(kLoCutNorm, kx, Y_ROW2);
        place2(kHiCutNorm, kx, Y_ROW2);
        kx += 16;
        place2(kDuckAmt, kx, Y_ROW2);
        place2(kDuckThr, kx, Y_ROW2);
        place2(kDuckAtt, kx, Y_ROW2);
        place2(kDuckRel, kx, Y_ROW2);

    }
    else {
         // -- ProMode row 1 --
        int kx = PAD;
        for (int i = 0; i < 10; ++i)
            place1(kRTBands[i], kx, Y_ROW1);

         // -- ProMode row 2 --
        int kx2 = PAD;
        satTypeLabel.setBounds(S(kx2, Y_SLABEL2, KNOB_W, KNOB_LBL_H));
        satTypeCombo.setBounds(S(kx2, Y_SLABEL2 + KNOB_LBL_H + 2, KNOB_W + PAD, 24));
        kx2 += KNOB_W + PAD + PAD + 8;
        place2(kTiltLow, kx2, Y_ROW2);
        place2(kTiltMid, kx2, Y_ROW2);
        place2(kTiltHigh, kx2, Y_ROW2);
        kx2 += 16;
        place2(kLoCutPro, kx2, Y_ROW2);
        place2(kHiCutPro, kx2, Y_ROW2);
    }

     // -------------------------------------------------------------------------
     // preset UI (always, mode-independent)
     // -------------------------------------------------------------------------
     // layout (PRESET_PANEL_X=632 starting from ):
     //
     // top row Y=Y_ROW2: [<(26)] gap4 [combo(154)] gap4 [>(26)] -> right edge 848
     // bottom row Y=Y_ROW2+34:[SAVE(104)] gap8 [DELETE(104)] -> right edge 848
     //
     // separator vertical line : PRESET_PANEL_X - 9 = 623
     // -------------------------------------------------------------------------
    {
        const int px = PRESET_PANEL_X;
        const int btnH = 26;

         // top row
        presetPrevButton.setBounds(S(px, Y_ROW2, 26, btnH));
        presetCombo.setBounds(S(px + 30, Y_ROW2, 154, btnH));
        presetNextButton.setBounds(S(px + 188, Y_ROW2, 26, btnH));

         // bottom row : [SAVE(68)] [LOAD(68)] [DELETE(68)]
        presetSaveButton.setBounds(S(px, Y_ROW2 + 34, 68, btnH));
        presetLoadButton.setBounds(S(px + 72, Y_ROW2 + 34, 68, btnH));
        presetDeleteButton.setBounds(S(px + 144, Y_ROW2 + 34, 68, btnH));
    }

     // -- Visualizer --
    const int decayHeight = H - Y_VIZ - STATUS_H - PAD;

    decayCurveViz.setBounds(S(PAD, Y_VIZ, W - PAD * 2, decayHeight));

     // -- AcousticMetrics --
    const int metricsRight = W - PAD - 8;
    const int metricsW = 280;
    const int metricsLeft = metricsRight - metricsW;
    const int metricsTop = Y_VIZ + 6;
    const int metricsRowH = 14;
    const int metricsRow1Y = metricsTop + 14;
    const int metricsRow2Y = metricsRow1Y + metricsRowH;
    const int captionW = 28;
    const int valueW = 52;
    const int colSpacing = 8;
    const int colW = captionW + valueW;

    labelMetricsTitle.setBounds(S(metricsLeft, metricsTop, 80, 12));
    labelD50Caption.setBounds(S(metricsLeft, metricsRow1Y, captionW, metricsRowH));
    labelD50Value.setBounds(S(metricsLeft + captionW, metricsRow1Y, valueW, metricsRowH));
    labelC50Caption.setBounds(S(metricsLeft + colW + colSpacing, metricsRow1Y, captionW, metricsRowH));
    labelC50Value.setBounds(S(metricsLeft + colW + colSpacing + captionW, metricsRow1Y, valueW, metricsRowH));
    labelC80Caption.setBounds(S(metricsLeft, metricsRow2Y, captionW, metricsRowH));
    labelC80Value.setBounds(S(metricsLeft + captionW, metricsRow2Y, valueW, metricsRowH));
    labelEDTCaption.setBounds(S(metricsLeft + colW + colSpacing, metricsRow2Y, captionW, metricsRowH));
    labelEDTValue.setBounds(S(metricsLeft + colW + colSpacing + captionW, metricsRow2Y, valueW, metricsRowH));

     // -- Git build-info status bar --
    statusLabel.setBounds(S(PAD, H - STATUS_H, W - PAD - 16, STATUS_H));
}

// -----------------------------------------------------------------------------
//  EditorContent::paint
// -----------------------------------------------------------------------------
void EditorContent::paint(juce::Graphics& g)
{
    g.fillAll(AmbivalenceColors::Background);
    g.addTransform(juce::AffineTransform::scale(uiScale));

    juce::ColourGradient grad(
        AmbivalenceColors::Surface.withAlpha(0.12f), 0.f, 0.f,
        AmbivalenceColors::Background, 0.f, (float)H, false);
    g.setGradientFill(grad);
    g.fillRect(0.f, 0.f, (float)W, (float)H);

    g.setColour(AmbivalenceColors::Separator);
    g.drawHorizontalLine(Y_SEP, (float)PAD, (float)(W - PAD));

    g.setFont(juce::Font(juce::FontOptions(
        "Helvetica Neue", 8.5f, juce::Font::bold)));

    auto sl = [&](int x, int y, const char* t) {
        g.drawText(t, x, y, 200, 14, juce::Justification::centredLeft);
        };

    if (!proMode) {
         // -- Row 1 separator --
        g.setColour(AmbivalenceColors::Separator);
        g.drawVerticalLine(SEP_TF, (float)Y_SLABEL1, (float)(Y_ROW1 + UNIT_H));
        g.drawVerticalLine(SEP_FD, (float)Y_SLABEL1, (float)(Y_ROW1 + UNIT_H));
        g.drawVerticalLine(SEP_DS, (float)Y_SLABEL1, (float)(Y_ROW1 + UNIT_H));
        g.drawVerticalLine(SEP_SC, (float)Y_SLABEL1, (float)(Y_ROW1 + UNIT_H));

         // -- Row 2 separator --
        const int row2_outeq_x = PAD + 2 * (KNOB_W + PAD) + 16;
        const int row2_duck_x = row2_outeq_x + 2 * (KNOB_W + PAD) + 16;
        g.drawVerticalLine(row2_outeq_x - 9, (float)Y_SLABEL2, (float)(Y_ROW2 + UNIT_H));
        g.drawVerticalLine(row2_duck_x - 9, (float)Y_SLABEL2, (float)(Y_ROW2 + UNIT_H));

         // -- section --
        g.setColour(AmbivalenceColors::Accent.withAlpha(0.75f));
        sl(SEC_TIME, Y_SLABEL1, "TIME");
        sl(SEC_FREQUENCY, Y_SLABEL1, "FREQUENCY");
        sl(SEC_DIFFUSION, Y_SLABEL1, "DIFFUSION");
        sl(SEC_STEREO, Y_SLABEL1, "STEREO");
        sl(SEC_CHARACTER, Y_SLABEL1, "CHARACTER");
        sl(PAD, Y_SLABEL2, "MIX");
        sl(row2_outeq_x, Y_SLABEL2, "OUT EQ");
        sl(row2_duck_x, Y_SLABEL2, "DUCKING");

    }
    else {
         // -- ProMode --
        g.setColour(AmbivalenceColors::Accent.withAlpha(0.75f));
        sl(PAD, Y_SLABEL1, "RT60 PER BAND");

        g.setColour(AmbivalenceColors::Separator.withAlpha(0.5f));
        g.drawHorizontalLine(Y_SLABEL2 - 4, (float)PAD, (float)(W - PAD));

        const int tilt_x = PAD + KNOB_W + PAD + PAD + 8;
        const int outeq_x = tilt_x + 3 * (KNOB_W + PAD) + 16;
        g.setColour(AmbivalenceColors::Separator);
        g.drawVerticalLine(outeq_x - 9, (float)Y_SLABEL2, (float)(Y_ROW2 + UNIT_H));

        g.setColour(AmbivalenceColors::Accent.withAlpha(0.75f));
        sl(tilt_x, Y_SLABEL2, "TILT EQ");
        sl(outeq_x, Y_SLABEL2, "OUT EQ");
    }

     // -------------------------------------------------------------------------
     // preset section (always, mode-independent)
     // -------------------------------------------------------------------------
    g.setColour(AmbivalenceColors::Separator);
    g.drawVerticalLine(PRESET_PANEL_X - 9,
        (float)Y_SLABEL2, (float)(Y_ROW2 + UNIT_H));
    g.setColour(AmbivalenceColors::Accent.withAlpha(0.75f));
    sl(PRESET_PANEL_X, Y_SLABEL2, "PRESET");

     // -- Git build-info status bar divider --
    g.setColour(AmbivalenceColors::Separator);
    g.drawHorizontalLine(H - STATUS_H - 1, (float)PAD, (float)(W - PAD));
}

// -----------------------------------------------------------------------------
//  EditorContent::Zoom control
// -----------------------------------------------------------------------------
void EditorContent::showZoomMenu()
{
    static constexpr float zoomLevels[] = { 0.75f, 1.0f, 1.5f, 2.0f, 2.5f, 3.0f };
    juce::PopupMenu menu;
    for (int i = 0; i < 6; ++i) {
        const int pct = juce::roundToInt(zoomLevels[i] * 100.f);
        menu.addItem(juce::String(pct) + "%", true,
            juce::approximatelyEqual(zoomLevels[i], currentZoom),
            [this, level = zoomLevels[i]] { setZoomLevel(level); });
    }
    menu.showMenuAsync(juce::PopupMenu::Options()
        .withTargetComponent(&zoomButton)
        .withStandardItemHeight(22));
}

void EditorContent::setZoomLevel(float scale)
{
    currentZoom = juce::jlimit(0.75f, 3.0f, scale);
    zoomButton.setButtonText(
        juce::String(juce::roundToInt(currentZoom * 100.f)) + "%");
    if (onZoomChange)
        onZoomChange(currentZoom);
}

// -----------------------------------------------------------------------------
// constructor
// -----------------------------------------------------------------------------
FDNReverbEditor::FDNReverbEditor(FDNReverbAudioProcessor& p)
    : AudioProcessorEditor(&p),
    audioProcessor(p)
{
    setLookAndFeel(&laf);
    setSize(juce::roundToInt((float)EditorContent::W * EditorContent::kDefaultZoom),
        juce::roundToInt((float)EditorContent::H * EditorContent::kDefaultZoom));

    content = std::make_unique<EditorContent>(p, laf);
    addAndMakeVisible(content.get());

     // setSize() in the constructor runs resized() while content is still
     // null, and hosts open the editor at exactly this size, so resized()
     // would otherwise never run again - leaving content at 0x0 (black
     // canvas). Lay it out explicitly here.
    resized();

     // when the user picks a zoom level, resize the (untransformed) editor so
     // it exactly matches the scaled content. resized() derives the content
     // scale from the actual editor width, so hosts that clamp the window
     // still end up with a correct, fully-covered UI.
    content->onZoomChange = [this](float z) {
        setSize(juce::roundToInt((float)EditorContent::W * z),
            juce::roundToInt((float)EditorContent::H * z));
        };

     // -- Preset UI wiring --
    presetManager = std::make_unique<PresetManager>(p);

    content->zoomButton.onClick = [this] { content->showZoomMenu(); };

    content->presetPrevButton.setButtonText("<");
    content->presetPrevButton.setColour(juce::TextButton::buttonColourId, AmbivalenceColors::Surface);
    content->presetPrevButton.setColour(juce::TextButton::textColourOffId, AmbivalenceColors::TextPrimary);
    content->presetPrevButton.onClick = [this] {
        presetManager->loadPrevPreset();
        };

    content->presetCombo.setLookAndFeel(&laf);
    content->presetCombo.onChange = [this] {
        int idx = content->presetCombo.getSelectedItemIndex() - FDNReverb::NUM_ALGORITHMS;
        auto names = presetManager->getPresetNames();
        if (idx >= 0 && idx < names.size())
            presetManager->loadPreset(names[idx]);
        };

    content->presetNextButton.setButtonText(">");
    content->presetNextButton.setColour(juce::TextButton::buttonColourId, AmbivalenceColors::Surface);
    content->presetNextButton.setColour(juce::TextButton::textColourOffId, AmbivalenceColors::TextPrimary);
    content->presetNextButton.onClick = [this] {
        presetManager->loadNextPreset();
        };

    content->presetSaveButton.setButtonText("SAVE");
    content->presetSaveButton.setColour(juce::TextButton::buttonColourId,
        AmbivalenceColors::Accent.withAlpha(0.75f));
    content->presetSaveButton.setColour(juce::TextButton::textColourOffId, AmbivalenceColors::Background);
    content->presetSaveButton.onClick = [this] { savePresetWithDialog(); };

    content->presetLoadButton.setButtonText("LOAD");
    content->presetLoadButton.setColour(juce::TextButton::buttonColourId,
        AmbivalenceColors::AccentBlue.withAlpha(0.75f));
    content->presetLoadButton.setColour(juce::TextButton::textColourOffId,
        AmbivalenceColors::Background);
    content->presetLoadButton.onClick = [this] {
        int idx = content->presetCombo.getSelectedItemIndex() - FDNReverb::NUM_ALGORITHMS;
        auto names = presetManager->getPresetNames();
        if (idx >= 0 && idx < names.size())
            presetManager->loadPreset(names[idx]);
        };

    content->presetDeleteButton.setButtonText("DELETE");
    content->presetDeleteButton.setColour(juce::TextButton::buttonColourId, AmbivalenceColors::Surface);
    content->presetDeleteButton.setColour(juce::TextButton::textColourOffId, AmbivalenceColors::TextSecondary);
    content->presetDeleteButton.onClick = [this] { deleteCurrentPreset(); };

     // callback setup
    presetManager->onPresetListChanged = [this] { refreshPresetCombo(); };

     // * fix : whenever the preset name changes Processor notify
    presetManager->onPresetLoaded = [this](const juce::String& name) {
        audioProcessor.setLastSavedPresetName(name);
        refreshPresetCombo();
        };

    refreshPresetCombo();
    startTimerHz(60);
}

// -----------------------------------------------------------------------------
// destructor
// -----------------------------------------------------------------------------
FDNReverbEditor::~FDNReverbEditor() {
    stopTimer();
    setLookAndFeel(nullptr);
    content->satTypeCombo.setLookAndFeel(nullptr);
    content->presetCombo.setLookAndFeel(nullptr);
}

// -----------------------------------------------------------------------------
//  timerCallback
// -----------------------------------------------------------------------------
void FDNReverbEditor::timerCallback()
{
    content->vuIn.setLevels(audioProcessor.getInputRMSL(),
        audioProcessor.getInputRMSR());
    content->vuOut.setLevels(audioProcessor.getOutputRMSL(),
        audioProcessor.getOutputRMSR());
    content->vuIn.repaint();
    content->vuOut.repaint();

    static int metricsCounter = 0;
    if (++metricsCounter >= 2) {
        metricsCounter = 0;
        content->labelD50Value.setText(
            juce::String(audioProcessor.getD50() * 100.0f, 1) + "%",
            juce::dontSendNotification);
        content->labelC50Value.setText(
            juce::String(audioProcessor.getC50(), 1) + "dB",
            juce::dontSendNotification);
        content->labelC80Value.setText(
            juce::String(audioProcessor.getC80(), 1) + "dB",
            juce::dontSendNotification);
        content->labelEDTValue.setText(
            juce::String(audioProcessor.getEDT(), 2) + "s",
            juce::dontSendNotification);
    }

    bool newProMode = (*audioProcessor.apvts.getRawParameterValue("promode") > 0.5f);
    content->setProMode(newProMode);
}

// -----------------------------------------------------------------------------
// resized
// -----------------------------------------------------------------------------
void FDNReverbEditor::resized()
{
    if (content == nullptr)
        return;

     // No setTransform here: scaling is done by EditorContent applying
     // uiScale to every child bounds and to its own paint() graphics, which
     // renders correctly in all hosts (some hosts, e.g. FL Studio, fail to
     // composite a transformed top-level child and show a blank frame).
    content->setBounds(getLocalBounds());
}

// -----------------------------------------------------------------------------
// paint
// -----------------------------------------------------------------------------
void FDNReverbEditor::paint(juce::Graphics& g)
{
    g.fillAll(AmbivalenceColors::Background);
}

// -----------------------------------------------------------------------------
// Preset UI helpers
// -----------------------------------------------------------------------------
void FDNReverbEditor::refreshPresetCombo()
{
    content->presetCombo.clear(juce::dontSendNotification);
    auto names = presetManager->getPresetNames();

     // ---------------------------------------------------------------------
     // * fix: restore the preset name saved in the Processor at startup
     // ---------------------------------------------------------------------
     // when the editor is closed the PresetManager is destroyed,
     // so currentPresetName becomes empty.
     // the name persisted in the Processor as lastSavedPresetName is
     // re-set in the new PresetManager,
     // so the combo box selection is restored correctly.
     // ---------------------------------------------------------------------
    if (presetManager->getCurrentPresetName().isEmpty()) {
        auto saved = audioProcessor.getLastSavedPresetName();
        if (saved.isNotEmpty())
            presetManager->setCurrentPresetName(saved);
    }

     // -- built-in algorithm presets --
    content->presetCombo.addSectionHeading("ALGORITHM");
    static const char* algoNames[FDNReverb::NUM_ALGORITHMS] = {
        "ROOM1", "ROOM2", "HALL1", "HALL2", "PLATE", "SPRING", "GOLDFOIL"
    };
    for (int i = 0; i < FDNReverb::NUM_ALGORITHMS; ++i)
        content->presetCombo.addItem(algoNames[i], i + 1);

     // -- saved user presets --
    if (names.isEmpty()) {
        const int placeholderId = FDNReverb::NUM_ALGORITHMS + 1;
        content->presetCombo.addItem("-- No Presets --", placeholderId);
        content->presetCombo.setSelectedId(placeholderId, juce::dontSendNotification);
        content->presetDeleteButton.setEnabled(false);
        content->presetLoadButton.setEnabled(false);
        content->presetPrevButton.setEnabled(false);
        content->presetNextButton.setEnabled(false);
        return;
    }

     // user-preset IDs start after the algorithm IDs so no two combo items
     // share an ID (JUCE ticks every item whose ID matches the selection).
    for (int i = 0; i < names.size(); ++i)
        content->presetCombo.addItem(names[i], FDNReverb::NUM_ALGORITHMS + i + 1);

    int idx = presetManager->getCurrentPresetIndex();
    if (idx >= 0)
        content->presetCombo.setSelectedItemIndex(idx, juce::dontSendNotification);
    else
        content->presetCombo.setSelectedItemIndex(0, juce::dontSendNotification);

    content->presetDeleteButton.setEnabled(true);
    content->presetLoadButton.setEnabled(true);
    content->presetPrevButton.setEnabled(names.size() > 1);
    content->presetNextButton.setEnabled(names.size() > 1);
}

void FDNReverbEditor::savePresetWithDialog()
{
     // ---------------------------------------------------------------------
     // AlertWindow preset name input dialog
     // uses enterModalState(async callback): no runModalLoop() needed
     // SafePointer handles the case where the editor is destroyed first
     // ---------------------------------------------------------------------
    auto* dialog = new juce::AlertWindow(
        "Save Preset",
        "Enter a name for this preset:",
        juce::MessageBoxIconType::NoIcon);

    dialog->addTextEditor("name", presetManager->getCurrentPresetName());
    dialog->addButton("Save", 1, juce::KeyPress(juce::KeyPress::returnKey));
    dialog->addButton("Cancel", 0, juce::KeyPress(juce::KeyPress::escapeKey));

    juce::Component::SafePointer<FDNReverbEditor> safeThis(this);

    dialog->enterModalState(
        true,
        juce::ModalCallbackFunction::create(
            [safeThis, dialog](int result) {
                if (safeThis != nullptr && result == 1) {
                    auto name = dialog->getTextEditorContents("name").trim();
                    if (name.isNotEmpty())
                        safeThis->presetManager->savePreset(name);
                }
            }),
        true   // deleteWhenDismissed
    );
}

void FDNReverbEditor::deleteCurrentPreset()
{
    auto name = presetManager->getCurrentPresetName();
    if (name.isEmpty()) return;

    auto* dialog = new juce::AlertWindow(
        "Delete Preset",
        "Delete \"" + name + "\"?",
        juce::MessageBoxIconType::WarningIcon);

    dialog->addButton("Delete", 1);
    dialog->addButton("Cancel", 0, juce::KeyPress(juce::KeyPress::escapeKey));

    juce::Component::SafePointer<FDNReverbEditor> safeThis(this);

    dialog->enterModalState(
        true,
        juce::ModalCallbackFunction::create(
            [safeThis, name](int result) {
                if (safeThis != nullptr && result == 1)
                    safeThis->presetManager->deletePreset(name);
            }),
        true
    );
}