/**
 *
 * Copyright (c) 2013 Pascal Gauthier.
 *
 * This program is free software; you can redistribute it and/or
 * modify it under the terms of the GNU General Public License as
 * published by the Free Software Foundation; either version 2 of
 * the License, or (at your option) any later version.
 *
 * This program is distributed in the hope that it will be
 * useful, but WITHOUT ANY WARRANTY; without even the implied
 * warranty of MERCHANTABILITY or FITNESS FOR A PARTICULAR
 * PURPOSE.  See the GNU General Public License for more details.
 *
 * You should have received a copy of the GNU General Public
 * License along with this program; if not, write to the Free
 * Software Foundation, Inc., 51 Franklin Street, Fifth Floor,
 * Boston, MA 02110-1301 USA.
 */

#include "PluginProcessor.h"
#include "PluginEditor.h"
#include "GlobalEditor.h"
#include "math.h"
#include <fstream>

using namespace ::std;

//==============================================================================
DexedAudioProcessorEditor::DexedAudioProcessorEditor (DexedAudioProcessor* ownerFilter)
    : AudioProcessorEditor (ownerFilter),
    midiKeyboard (ownerFilter->keyboardState, MidiKeyboardComponent::horizontalKeyboard)
{
    LookAndFeel::setDefaultLookAndFeel(&dx_lnf);

    // This is where our plugin's editor size is set.
    setSize (865, 420);

    processor = ownerFilter;
    
    addAndMakeVisible (loadButton = new TextButton("LOAD"));
    loadButton->setButtonText ("LOAD");
    loadButton->addListener (this);
    loadButton->setBounds (5, 5, 50, 18);

    cachedImage_background_png = ImageCache::getFromMemory (BinaryData::background_png, BinaryData::background_pngSize);

    addAndMakeVisible( saveButton = new TextButton("SAVE"));
    saveButton->setButtonText ("SAVE");
    saveButton->addListener (this);
    saveButton->setBounds (57, 5, 50, 18);

    addAndMakeVisible( storeButton = new TextButton("STORE"));
    storeButton->setButtonText ("STORE");
    storeButton->addListener (this);
    storeButton->setBounds (300, 5, 50, 18);

    addAndMakeVisible( aboutButton = new TextButton("ABOUT"));
    aboutButton->setButtonText ("ABOUT");
    aboutButton->addListener (this);
    aboutButton->setBounds (805, 5, 50, 18);

    addAndMakeVisible (&presets);
    presets.setEditableText (false);
    presets.setJustificationType (Justification::centredLeft);
    presets.setTextWhenNothingSelected (String::empty);
    presets.setBounds(115, 5, 180, 18);

    for(int i=0;i<processor->getNumPrograms();i++) {
        String id;
        id << (i+1) << ". " << processor->getProgramName(i);
        presets.addItem(id, i+1);
    }
    presets.setSelectedId(processor->getCurrentProgram()+1, NotificationType::dontSendNotification);
    presets.addListener(this);

    // OPERATORS
    addAndMakeVisible(&(operators[0]));
    operators[0].setBounds(5, 40, 280, 90);
    operators[0].bind(processor, 0);
    
    addAndMakeVisible(&(operators[1]));
    operators[1].setBounds(290, 40, 280, 90);
    operators[1].bind(processor, 1);
    
    addAndMakeVisible(&(operators[2]));
    operators[2].setBounds(575, 40, 280, 90);
    operators[2].bind(processor, 2);
    
    addAndMakeVisible(&(operators[3]));
    operators[3].setBounds(5, 130, 280, 90);
    operators[3].bind(processor, 3);
    
    addAndMakeVisible(&(operators[4]));
    operators[4].setBounds(290, 130, 280, 90);
    operators[4].bind(processor, 4);
    
    addAndMakeVisible(&(operators[5]));
    operators[5].setBounds(575, 130, 280, 90);
    operators[5].bind(processor, 5);

    // add the midi keyboard component..
    addAndMakeVisible (&midiKeyboard);
    
    // The DX7 is a badass on the bass, keep it that way
    midiKeyboard.setLowestVisibleKey(24);

    const int keyboardHeight = 90;
    midiKeyboard.setBounds (4, getHeight() - keyboardHeight - 4, getWidth() - 8, keyboardHeight);

    addAndMakeVisible(&global);
    global.setBounds(5,235,855,90);
    global.bind(processor);

   updateUI();
   startTimer(100);
}

DexedAudioProcessorEditor::~DexedAudioProcessorEditor() {
    stopTimer();
    processor->unbindUI();
}

//==============================================================================
void DexedAudioProcessorEditor::paint (Graphics& g) {
    g.drawImage (cachedImage_background_png, 0, 0, 865, 420,
                 0, 0, cachedImage_background_png.getWidth(), cachedImage_background_png.getHeight());
}

void DexedAudioProcessorEditor::buttonClicked(Button *buttonThatWasClicked) {

    if (buttonThatWasClicked == loadButton) {
        FileChooser fc ("Import original DX sysex...", File::nonexistent, "*.syx;*.SYX", 1);

        if ( fc.browseForFileToOpen()) {
            String f = fc.getResults().getReference(0).getFullPathName();
            uint8_t syx_data[4104];
            ifstream fp_in;
            fp_in.open(f.toRawUTF8(), ifstream::in);
            if (fp_in.fail()) {
                AlertWindow::showMessageBoxAsync (AlertWindow::WarningIcon,
                                                  "Error",
                                                  "Unable to open: " + f);
                return;
            }
            fp_in.read((char *)syx_data, 4104);
            processor->importSysex((char *) &syx_data);

            presets.clear(NotificationType::dontSendNotification);
            for(int i=0;i<processor->getNumPrograms();i++) {
                String id;
                id << (i+1) << ". " << processor->getProgramName(i);
                presets.addItem(id, i+1);
            }

            presets.setSelectedId(processor->getCurrentProgram()+1, NotificationType::dontSendNotification);
            processor->setCurrentProgram(0);
            processor->updateHostDisplay();
        }

        return;
    }

    if (buttonThatWasClicked == aboutButton) {
        AlertWindow::showMessageBoxAsync(AlertWindow::NoIcon, "DEXED - DX Emulator", "(c) 2013 Pascal Gauthier\nUnder the GPL v2"
                "\nBased on Music Synthesizer for Android\n");
        return;
    }

    AlertWindow::showMessageBoxAsync(AlertWindow::WarningIcon, "Sorry", "Soon !");
}

void DexedAudioProcessorEditor::comboBoxChanged (ComboBox* comboBoxThatHasChanged) {
    processor->setCurrentProgram(comboBoxThatHasChanged->getSelectedId()-1);
    processor->updateHostDisplay();    
}

void DexedAudioProcessorEditor::timerCallback() {
    int32_t env[6];

    if ( processor->peekEnvStatus(env) == false ) 
        return;

    for(int i=0;i<6;i++) {
        operators[i].updateGain(sqrt(env[5 - i]) / 8196);
    }
}   

void DexedAudioProcessorEditor::updateUI() {
    for(int i=0;i<processor->ctrl.size();i++) {
        processor->ctrl[i]->updateComponent();
    }
    for(int i=0;i<6;i++) {
        operators[i].updateDisplay();
    }
}