au_factory_presets.hpp

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#pragma once


#if defined(__APPLE__)
 
#include <AudioToolbox/AudioToolbox.h>
#include <CoreFoundation/CoreFoundation.h>
 
#include <pulp/state/preset_manager.hpp>
#include <pulp/state/store.hpp>
 
#include <cstddef>
#include <filesystem>
#include <memory>
#include <string>
#include <vector>
 
namespace pulp::format::au {

std::filesystem::path factory_presets_dir_for_binary(const std::filesystem::path& binary);

std::filesystem::path loaded_bundle_factory_presets_dir();

class FactoryPresetTable {
  public:
    FactoryPresetTable() = default;
    ~FactoryPresetTable();
 
    FactoryPresetTable(const FactoryPresetTable&) = delete;
    FactoryPresetTable& operator=(const FactoryPresetTable&) = delete;

    void bind(state::StateStore& store, const std::string& manufacturer,
              const std::string& plugin_name);

    void set_directory(const std::filesystem::path& dir);

    std::size_t size() const noexcept {
        return entries_.size();
    }

    std::string name_at(std::size_t index) const;

    bool load(std::size_t index);

    const AUPreset* preset_at(std::size_t index) const noexcept;

    OSStatus copy_presets(CFArrayRef* out_data) const;

    state::PresetManager* preset_manager() noexcept {
        return presets_.get();
    }
 
  private:
    void rebuild();
    void clear_entries() noexcept;
 
    // The PresetManager holds the StateStore reference; the table itself
    // never touches the store directly.
    std::unique_ptr<state::PresetManager> presets_;
    // Parallel arrays, same order and length: `entries_[i].presetName` is a
    // +1 CFStringRef this table releases, and `infos_[i]` is the preset
    // `load(i)` reads.
    std::vector<AUPreset> entries_;
    std::vector<state::PresetInfo> infos_;
};
 
} // namespace pulp::format::au
 
#endif // __APPLE__