ambivalence/Source/PresetManager.h

#pragma once
#include <JuceHeader.h>

class FDNReverbAudioProcessor;

// -----------------------------------------------------------------------------
//  PresetManager
// -----------------------------------------------------------------------------
// preset file manage .
//
// save location : ~/Documents/Ambivalence/Presets/*.ambpreset
// : APVTS getStateInformation/setStateInformation
// -> existing save fully reused , minimizes added code
//
// real-time safety :
// - file I/O all message thread (UI) assumed to be called
// - processBlock not involved at all
// -----------------------------------------------------------------------------
class PresetManager
{
public:
    explicit PresetManager(FDNReverbAudioProcessor& processor);

     // --- preset operations ---
    bool savePreset(const juce::String& name);
    bool loadPreset(const juce::String& name);
    bool deletePreset(const juce::String& name);

     // --- navigation ---
    void loadPrevPreset();
    void loadNextPreset();

     // --- state access ---
    juce::StringArray getPresetNames()       const noexcept { return presetNames; }
     // --- after changes ---
    juce::String      getCurrentPresetName() const noexcept { return currentPresetName; }
     void setCurrentPresetName(const juce::String& name) noexcept { currentPresetName = name; } // * added
    int               getCurrentPresetIndex() const noexcept;

    bool              hasPresets()           const noexcept { return !presetNames.isEmpty(); }

     // --- folder access ---
    juce::File getPresetsFolder() const;

     // --- UI update callback ---
    std::function<void()>                    onPresetListChanged;
    std::function<void(const juce::String&)> onPresetLoaded;

private:
    void       refreshPresetList();
    juce::File getPresetFile(const juce::String& name) const;

    FDNReverbAudioProcessor& processor;
    juce::StringArray        presetNames;
    juce::String             currentPresetName;

    static constexpr const char* kExtension = ".ambpreset";
    static constexpr const char* kSubFolder = "Ambivalence/Presets";
};