#pragma once

#include <JuceHeader.h>
#include <atomic>
#include "Params.h"
#include "Engine.h"

namespace serum
{

// ===========================================================================
// SerumAlt — a wavetable synthesiser (VST3 / AU). Hosts the APVTS, the audio
// engine, preset management and the RAVE toggle.
// ===========================================================================
class SerumAltAudioProcessor : public juce::AudioProcessor
{
public:
    SerumAltAudioProcessor();
    ~SerumAltAudioProcessor() override;

    // --- AudioProcessor ---
    void prepareToPlay (double sampleRate, int samplesPerBlock) override;
    void releaseResources() override;
    void processBlock (juce::AudioBuffer<float>&, juce::MidiBuffer&) override;

    juce::AudioProcessorEditor* createEditor() override;
    bool hasEditor() const override                 { return true; }

    const juce::String getName() const override     { return "SerumAlt"; }
    bool acceptsMidi() const override               { return true; }
    bool producesMidi() const override              { return false; }
    bool isMidiEffect() const override              { return false; }
    double getTailLengthSeconds() const override    { return 2.0; }

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

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

    // --- SerumAlt ---
    void setRaveEnabled (bool enabled);
    bool isRaveEnabled() const;

    int  getUiScaleIndex() const;
    void setUiScaleIndex (int index);
    float getUiScale() const;

    void loadFactoryPreset (int index);
    int  getNumFactoryPresets() const;

    // Public control state (hold the engine control lock for matrix/macros/LFOs).
    juce::AudioProcessorValueTreeState parameters;
    Engine engine;

    static juce::AudioProcessorValueTreeState::ParameterLayout createParameterLayout();

private:
    std::atomic<int> currentProgram { 0 };

    void restoreLfoShapesFromState (const juce::ValueTree& state);
    void saveLfoShapesToState (juce::ValueTree& state) const;

    JUCE_DECLARE_NON_COPYABLE_WITH_LEAK_DETECTOR (SerumAltAudioProcessor)
};

} // namespace serum