#include "PluginEditor.h"
#include "BuildInfo.h"
#include <juce_gui_basics/juce_gui_basics.h>

RackEditor::RackEditor (RMX19AudioProcessor& p)
    : AudioProcessorEditor (p)
    , proc (p)
    , display (p)
{
    face = juce::Colour (0xff16130f);

    up    = new NavButton (-1, "^", "UP");
    down  = new NavButton (1,  "v", "DOWN");
    left  = new NavButton (-1, "<", "LEFT");
    right = new NavButton (1,  ">", "RIGHT");
    enterB = new OkButton ("ENTER", true);
    backB  = new OkButton ("BACK", false);

    for (auto* b : { (juce::Button*) up, (juce::Button*) down,
                     (juce::Button*) left, (juce::Button*) right,
                     (juce::Button*) enterB, (juce::Button*) backB })
        addAndMakeVisible (b);

    up->onClick    = [this] { display.navUp(); };
    down->onClick  = [this] { display.navDown(); };
    left->onClick  = [this] { display.navLeft(); };
    right->onClick = [this] { display.navRight(); };
    enterB->onClick = [this] { display.navEnter(); };
    backB->onClick  = [this] { display.navExit(); };

    addAndMakeVisible (display);

    setWantsKeyboardFocus (true);
    setSize (656, 248);
    startTimerHz (18);
}

RackEditor::~RackEditor()
{
    stopTimer();
}

void RackEditor::paint (juce::Graphics& g)
{
    const auto b = getLocalBounds();

    // --- metal rack face ---
    g.setColour (face);
    g.fillRect (b);

    // brushed texture
    g.setColour (juce::Colour::fromRGBA (255, 255, 255, 7));
    for (int x = 0; x < b.getWidth(); x += 3)
        g.fillRect (x, 0, 1, b.getHeight());

    // rack rails (top/bottom)
    g.setColour (juce::Colour (0xff221e1a));
    g.fillRect (0, 0, b.getWidth(), 4);
    g.fillRect (0, b.getHeight() - 4, b.getWidth(), 4);
    g.setColour (juce::Colour (0xff5a5347));
    g.fillRect (0, 4, b.getWidth(), 1);
    g.fillRect (0, b.getHeight() - 5, b.getWidth(), 1);

    // screw holes
    const auto screw = [&] (int x, int y)
    {
        g.setColour (juce::Colour (0xff2a2620));
        g.fillEllipse (x - 4, y - 4, 8, 8);
        g.setColour (juce::Colour (0xff8a7f6e));
        g.drawEllipse (x - 4.5f, y - 4.5f, 9, 9, 1.0f);
        g.drawLine (x - 3, y, x + 3, y, 1.0f);
    };
    screw (8, 8); screw (b.getWidth() - 9, 8);
    screw (8, b.getHeight() - 9); screw (b.getWidth() - 9, b.getHeight() - 9);

    // brand plate
    g.setColour (juce::Colour (0xff614f3a));
    g.fillRect (12, 6, 150, 12);
    g.setColour (juce::Colour (0xffc9a86f));
    g.setFont (juce::FontOptions ("Arial", 10.0f, juce::Font::bold));
    g.drawFittedText ("RMX-19  RACK SYNTH", 12, 6, 150, 12, juce::Justification::centred, 1);

    // power LED (right of LCD status)
    const int ledX = getWidth() - 20, ledY = 18;
    g.setColour (juce::Colour (0xff3a0d0d));
    g.fillEllipse (ledX - 3, ledY - 3, 8, 8);
    g.setColour (juce::Colour::fromFloatRGBA (0.95f, 0.25f + 0.1f * powerPulse, 0.1f, 1.0f));
    g.fillEllipse (ledX - 2, ledY - 2, 6, 6);
    g.setColour (juce::Colour (0xff8a7f6e));
    g.setFont (juce::FontOptions ("Arial", 8.0f, juce::Font::plain));
    g.drawFittedText ("PWR", ledX - 26, ledY - 5, 20, 10, juce::Justification::centredRight, 1);

    // rear engraving text
    g.setColour (juce::Colour (0xff6e6657));
    g.setFont (juce::FontOptions ("Courier New", 8.0f, juce::Font::plain));
    const juce::String ser = "S/N 0001-1943    MIDI OUT (R)  MIDI IN (R)    AUDIO 24BIT/96K";
    g.drawFittedText (ser, 12, getHeight() - 16, getWidth() - 24, 11, juce::Justification::centred, 1);
}

void RackEditor::resized()
{
    const auto b = getLocalBounds();

    // LCD recessed module
    const juce::Rectangle<int> lcdArea (14, 24, 356, 168);
    display.setBounds (lcdArea);

    // nav diamond + enter/back to the right of the LCD
    const juce::Rectangle<int> navArea (lcdArea.getRight() + 16, 26, b.getWidth() - lcdArea.getRight() - 30, 164);

    const int bw = 58, bh = 20;
    const int cx = navArea.getX() + (navArea.getWidth() - bw) / 2;
    const int rowY = navArea.getY();

    up->setBounds (cx, rowY, bw, bh);
    left->setBounds (navArea.getX() + 2, rowY + bh + 6, bw, bh);
    down->setBounds (cx, rowY + bh + 6, bw, bh);
    right->setBounds (navArea.getRight() - bw - 2, rowY + bh + 6, bw, bh);

    enterB->setBounds (navArea.getX() + 2, rowY + 2 * (bh + 6) + 4, bw, bh);
    backB->setBounds (navArea.getRight() - bw - 2, rowY + 2 * (bh + 6) + 4, bw, bh);
}

void RackEditor::timerCallback()
{
    powerPulse = 0.5f + 0.5f * std::sin (juce::Time::getMillisecondCounter() * 0.0022f);
    repaint (getLocalBounds());
}

bool RackEditor::keyPressed (const juce::KeyPress& k)
{
    if (display.keyTrap (k))
    {
        repaint();
        return true;
    }
    return false;
}

// ---- buttons -------------------------------------------------------------

void RackEditor::NavButton::paintButton (juce::Graphics& g, bool, bool down)
{
    const auto b = getLocalBounds();
    const juce::Colour base = juce::Colour (0xff221d18);
    const juce::Colour edge = juce::Colour (0xff6b5f4e);
    const juce::Colour text = juce::Colour (0xfffff3d8);

    if (down)
    {
        g.setColour (edge.darker (0.4f));
        g.fillRect (b);
        g.setColour (base.brighter (0.1f));
        g.fillRect (b.reduced (2, 2));
    }
    else
    {
        g.setColour (base);
        g.fillRect (b);
        g.setColour (edge);
        g.drawRect (b, 1);
    }

    // glyph
    g.setColour (text);
    g.setFont (juce::FontOptions ("Arial", 12.0f, juce::Font::bold));
    g.drawFittedText (mark, b.withTrimmedBottom (9), juce::Justification::centred, 1);
    g.setFont (juce::FontOptions ("Arial", 7.0f, juce::Font::plain));
    g.drawFittedText (getName(), b.withTrimmedTop (b.getHeight() - 8), juce::Justification::centred, 1);
}

void RackEditor::OkButton::paintButton (juce::Graphics& g, bool over, bool down)
{
    const auto b = getLocalBounds();
    const juce::Colour base = enter ? juce::Colour (0xff263a28) : juce::Colour (0xff332a20);
    const juce::Colour edge = juce::Colour (0xff8a9b6a);

    if (down)
    {
        g.setColour (edge.darker (0.35f));
        g.fillRect (b);
        g.setColour (base.brighter (0.12f));
        g.fillRect (b.reduced (2, 2));
    }
    else
    {
        g.setColour (base);
        g.fillRect (b);
        g.setColour (edge);
        g.drawRect (b, 1);
    }

    g.setColour (over ? juce::Colour (0xffffd977) : juce::Colour (0xffd8d2c6));
    g.setFont (juce::FontOptions ("Arial", 9.0f, juce::Font::bold));
    g.drawFittedText (getName(), b, juce::Justification::centred, 1);
}