/*
  ==============================================================================

   This file is part of the JUCE framework.
   Copyright (c) Raw Material Software Limited

   JUCE is an open source framework subject to commercial or open source
   licensing.

   By downloading, installing, or using the JUCE framework, or combining the
   JUCE framework with any other source code, object code, content or any other
   copyrightable work, you agree to the terms of the JUCE End User Licence
   Agreement, and all incorporated terms including the JUCE Privacy Policy and
   the JUCE Website Terms of Service, as applicable, which will bind you. If you
   do not agree to the terms of these agreements, we will not license the JUCE
   framework to you, and you must discontinue the installation or download
   process and cease use of the JUCE framework.

   JUCE End User Licence Agreement: https://juce.com/legal/juce-8-licence/
   JUCE Privacy Policy: https://juce.com/juce-privacy-policy
   JUCE Website Terms of Service: https://juce.com/juce-website-terms-of-service/

   Or:

   You may also use this code under the terms of the AGPLv3:
   https://www.gnu.org/licenses/agpl-3.0.en.html

   THE JUCE FRAMEWORK IS PROVIDED "AS IS" WITHOUT ANY WARRANTY, AND ALL
   WARRANTIES, WHETHER EXPRESSED OR IMPLIED, INCLUDING WARRANTY OF
   MERCHANTABILITY OR FITNESS FOR A PARTICULAR PURPOSE, ARE DISCLAIMED.

  ==============================================================================
*/

namespace juce
{

AudioPluginFormatManager::AudioPluginFormatManager() {}
AudioPluginFormatManager::~AudioPluginFormatManager() {}

//==============================================================================
void AudioPluginFormatManager::addDefaultFormats()
{
   #if JUCE_PLUGINHOST_VST && (JUCE_MAC || JUCE_WINDOWS || JUCE_LINUX || JUCE_BSD || JUCE_IOS)
    #define HAS_VST 1
   #else
    #define HAS_VST 0
   #endif

   #if JUCE_PLUGINHOST_VST3 && (JUCE_MAC || JUCE_WINDOWS || JUCE_LINUX || JUCE_BSD)
    #define HAS_VST3 1
   #else
    #define HAS_VST3 0
   #endif

   #if JUCE_PLUGINHOST_AU && (JUCE_MAC || JUCE_IOS)
    #define HAS_AU 1
   #else
    #define HAS_AU 0
   #endif

   #if JUCE_PLUGINHOST_LADSPA && (JUCE_LINUX || JUCE_BSD)
    #define HAS_LADSPA 1
   #else
    #define HAS_LADSPA 0
   #endif

   #if JUCE_PLUGINHOST_LV2 && (JUCE_MAC || JUCE_LINUX || JUCE_BSD || JUCE_WINDOWS)
    #define HAS_LV2 1
   #else
    #define HAS_LV2 0
   #endif

   #if JUCE_DEBUG
    // you should only call this method once!
    for (auto* format [[maybe_unused]] : formats)
    {
       #if HAS_VST
        jassert (dynamic_cast<VSTPluginFormat*> (format) == nullptr);
       #endif

       #if HAS_VST3
        jassert (dynamic_cast<VST3PluginFormat*> (format) == nullptr);
       #endif

       #if HAS_AU
        jassert (dynamic_cast<AudioUnitPluginFormat*> (format) == nullptr);
       #endif

       #if HAS_LADSPA
        jassert (dynamic_cast<LADSPAPluginFormat*> (format) == nullptr);
       #endif

       #if HAS_LV2
        jassert (dynamic_cast<LV2PluginFormat*> (format) == nullptr);
       #endif
    }
   #endif

   #if HAS_AU
    formats.add (new AudioUnitPluginFormat());
   #endif

   #if HAS_VST
    formats.add (new VSTPluginFormat());
   #endif

   #if HAS_VST3
    formats.add (new VST3PluginFormat());
   #endif

   #if HAS_LADSPA
    formats.add (new LADSPAPluginFormat());
   #endif

   #if HAS_LV2
    formats.add (new LV2PluginFormat());
   #endif
}

int AudioPluginFormatManager::getNumFormats() const                         { return formats.size(); }
AudioPluginFormat* AudioPluginFormatManager::getFormat (int index) const    { return formats[index]; }

Array<AudioPluginFormat*> AudioPluginFormatManager::getFormats() const
{
    Array<AudioPluginFormat*> a;
    a.addArray (formats);
    return a;
}

void AudioPluginFormatManager::addFormat (AudioPluginFormat* format)
{
    formats.add (format);
}

std::unique_ptr<AudioPluginInstance> AudioPluginFormatManager::createPluginInstance (const PluginDescription& description,
                                                                                     double rate, int blockSize,
                                                                                     String& errorMessage) const
{
    if (auto* format = findFormatForDescription (description, errorMessage))
        return format->createInstanceFromDescription (description, rate, blockSize, errorMessage);

    return {};
}

void AudioPluginFormatManager::createARAFactoryAsync (const PluginDescription& description,
                                                      AudioPluginFormat::ARAFactoryCreationCallback callback) const
{
    String errorMessage;

    if (auto* format = findFormatForDescription (description, errorMessage))
    {
        format->createARAFactoryAsync (description, callback);
    }
    else
    {
        errorMessage = NEEDS_TRANS ("Couldn't find format for the provided description");
        callback ({ {}, std::move (errorMessage) });
    }
}

void AudioPluginFormatManager::createPluginInstanceAsync (const PluginDescription& description,
                                                          double initialSampleRate, int initialBufferSize,
                                                          AudioPluginFormat::PluginCreationCallback callback)
{
    String error;

    if (auto* format = findFormatForDescription (description, error))
        return format->createPluginInstanceAsync (description, initialSampleRate, initialBufferSize, std::move (callback));

    struct DeliverError final : public CallbackMessage
    {
        DeliverError (AudioPluginFormat::PluginCreationCallback c, const String& e)
            : call (std::move (c)), error (e)
        {
            post();
        }

        void messageCallback() override          { call (nullptr, error); }

        AudioPluginFormat::PluginCreationCallback call;
        String error;
    };

    new DeliverError (std::move (callback), error);
}

AudioPluginFormat* AudioPluginFormatManager::findFormatForDescription (const PluginDescription& description,
                                                                       String& errorMessage) const
{
    errorMessage = {};

    for (auto* format : formats)
        if (format->getName() == description.pluginFormatName
              && format->fileMightContainThisPluginType (description.fileOrIdentifier))
            return format;

    errorMessage = NEEDS_TRANS ("No compatible plug-in format exists for this plug-in");

    return {};
}

bool AudioPluginFormatManager::doesPluginStillExist (const PluginDescription& description) const
{
    for (auto* format : formats)
        if (format->getName() == description.pluginFormatName)
            return format->doesPluginStillExist (description);

    return false;
}

} // namespace juce
