/*
 * DISTRHO Plugin Framework (DPF)
 * Copyright (C) 2012-2022 Filipe Coelho <falktx@falktx.com>
 *
 * Permission to use, copy, modify, and/or distribute this software for any purpose with
 * or without fee is hereby granted, provided that the above copyright notice and this
 * permission notice appear in all copies.
 *
 * THE SOFTWARE IS PROVIDED "AS IS" AND THE AUTHOR DISCLAIMS ALL WARRANTIES WITH REGARD
 * TO THIS SOFTWARE INCLUDING ALL IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS. IN
 * NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY SPECIAL, DIRECT, INDIRECT, OR CONSEQUENTIAL
 * DAMAGES OR ANY DAMAGES WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS, WHETHER
 * IN AN ACTION OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING OUT OF OR IN
 * CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE.
 */

#include "DistrhoPluginInternal.hpp"

START_NAMESPACE_DISTRHO

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

#if ! DISTRHO_PLUGIN_WANT_MIDI_OUTPUT
static constexpr const writeMidiFunc writeMidiCallback = nullptr;
#endif
#if ! DISTRHO_PLUGIN_WANT_PARAMETER_VALUE_CHANGE_REQUEST
static constexpr const requestParameterValueChangeFunc requestParameterValueChangeCallback = nullptr;
#endif
#if ! DISTRHO_PLUGIN_WANT_STATE
static const updateStateValueFunc updateStateValueCallback = nullptr;
#endif

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

/**
 * Stub plugin class, does nothing but serving as example code for other implementations.
 */
class PluginStub
{
public:
    PluginStub()
        : fPlugin(this,
                  writeMidiCallback,
                  requestParameterValueChangeCallback,
                  updateStateValueCallback)
    {
    }

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

private:
    // Plugin
    PluginExporter fPlugin;

    // ----------------------------------------------------------------------------------------------------------------
    // DPF callbacks

   #if DISTRHO_PLUGIN_WANT_MIDI_OUTPUT
    bool writeMidi(const MidiEvent&)
    {
        return true;
    }

    static bool writeMidiCallback(void* const ptr, const MidiEvent& midiEvent)
    {
        return ((PluginStub*)ptr)->writeMidi(midiEvent);
    }
   #endif

   #if DISTRHO_PLUGIN_WANT_PARAMETER_VALUE_CHANGE_REQUEST
    bool requestParameterValueChange(uint32_t, float)
    {
        return true;
    }

    static bool requestParameterValueChangeCallback(void* const ptr, const uint32_t index, const float value)
    {
        return ((PluginStub*)ptr)->requestParameterValueChange(index, value);
    }
   #endif

   #if DISTRHO_PLUGIN_WANT_STATE
    bool updateState(const char*, const char*)
    {
        return true;
    }

    static bool updateStateValueCallback(void* const ptr, const char* const key, const char* const value)
    {
        return ((PluginStub*)ptr)->updateState(key, value);
    }
   #endif
};

END_NAMESPACE_DISTRHO

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