/*
 ==============================================================================
 This file is part of the IEM plug-in suite.
 Author: Daniel Rudrich
 Copyright (c) 2017 - Institute of Electronic Music and Acoustics (IEM)
 https://iem.at

 The IEM plug-in suite 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 3 of the License, or
 (at your option) any later version.

 The IEM plug-in suite 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 software.  If not, see <https://www.gnu.org/licenses/>.
 ==============================================================================
 */

#pragma once

#include "../JuceLibraryCode/JuceHeader.h"
#include "../../resources/Quaternion.h"
#include "../../resources/efficientSHvanilla.h"
#include "../../resources/ambisonicTools.h"
#include "../../resources/IOHelper.h"
#include "../../resources/Conversions.h"
#include "../../resources/OSCParameterInterface.h"
#include "../../resources/OSCReceiverPlus.h"

//==============================================================================
/**
*/
class StereoEncoderAudioProcessor  : public AudioProcessor,
                                                public AudioProcessorValueTreeState::Listener,
public IOHelper<IOTypes::AudioChannels<2>, IOTypes::Ambisonics<>>, public VSTCallbackHandler, private OSCReceiver::Listener<OSCReceiver::RealtimeCallback>
{
public:
    //==============================================================================
    StereoEncoderAudioProcessor();
    ~StereoEncoderAudioProcessor();

    //==============================================================================
    void prepareToPlay (double sampleRate, int samplesPerBlock) override;
    void releaseResources() override;

   #ifndef JucePlugin_PreferredChannelConfigurations
    bool isBusesLayoutSupported (const BusesLayout& layouts) const override;
   #endif

    void processBlock (AudioSampleBuffer&, MidiBuffer&) override;

    //==============================================================================
    AudioProcessorEditor* createEditor() override;
    bool hasEditor() const override;

    //==============================================================================
    const String getName() const override;

    bool acceptsMidi() const override;
    bool producesMidi() const override;
    double getTailLengthSeconds() const override;

    //==============================================================================
    int getNumPrograms() override;
    int getCurrentProgram() override;
    void setCurrentProgram (int index) override;
    const String getProgramName (int index) override;
    void changeProgramName (int index, const String& newName) override;

    //==============================================================================
    void getStateInformation (MemoryBlock& destData) override;
    void setStateInformation (const void* data, int sizeInBytes) override;

    void parameterChanged (const String &parameterID, float newValue) override;

    //======== PluginCanDo =========================================================
    pointer_sized_int handleVstManufacturerSpecific (int32 index, pointer_sized_int value,
                                                     void* ptr, float opt) override { return 0; };
    pointer_sized_int handleVstPluginCanDo (int32 index, pointer_sized_int value,
                                            void* ptr, float opt) override;
    //==============================================================================

    // ====== OSC ======
    void oscMessageReceived (const OSCMessage &message) override;
    OSCReceiverPlus& getOSCReceiver () { return oscReceiver; }
    // =================

    Vector3D<float> posC, posL, posR;

    Atomic<bool> updatedPositionData;

    float *orderSetting;
    float *useSN3D;
    float *qw;
    float *qx;
    float *qy;
    float *qz;
    float *azimuth;
    float *elevation;
    float *roll;
    float *width;
    float *highQuality;

    // --------------------

    bool sphericalInput;

    double phi, theta;

private:
    //==============================================================================
    bool processorUpdatingParams;

    AudioProcessorValueTreeState parameters;
    OSCParameterInterface oscParameterInterface;
    OSCReceiverPlus oscReceiver;

    float SHL[64];
    float SHR[64];
    float _SHL[64];
    float _SHR[64];

    AudioBuffer<float> bufferCopy;

    LinearSmoothedValue<float> smoothAzimuthL, smoothElevationL;
    LinearSmoothedValue<float> smoothAzimuthR, smoothElevationR;

    JUCE_DECLARE_NON_COPYABLE_WITH_LEAK_DETECTOR (StereoEncoderAudioProcessor)
};
