#include "ProjectModel.hpp"

#include <QClipboard>
#include <QDate>
#include <QMimeData>

#include "Common.hpp"
#include "EditorWidget.hpp"
#include "MainWindow.hpp"
#include "NewSoundMacroDialog.hpp"

#include <amuse/ContainerRegistry.hpp>
#include <amuse/SongConverter.hpp>

#include <athena/FileWriter.hpp>
#include <athena/FileReader.hpp>
#include <athena/YAMLDocWriter.hpp>
#include <athena/VectorWriter.hpp>

QIcon ProjectModel::GroupNode::Icon;
QIcon ProjectModel::SongGroupNode::Icon;
QIcon ProjectModel::SoundGroupNode::Icon;

OutlineFilterProxyModel::OutlineFilterProxyModel(ProjectModel* source)
: QSortFilterProxyModel(source), m_usageKey({}, Qt::CaseInsensitive) {
  setSourceModel(source);
  setRecursiveFilteringEnabled(true);
  setFilterCaseSensitivity(Qt::CaseInsensitive);
}

void OutlineFilterProxyModel::setFilterRegExp(const QString& pattern) {
  if (pattern.startsWith(QStringLiteral("usages:"))) {
    m_usageKey.setPattern(pattern.mid(7));
    QSortFilterProxyModel::setFilterRegExp(QString());
  } else {
    m_usageKey.setPattern(QString());
    QSortFilterProxyModel::setFilterRegExp(pattern);
  }
}

static void VisitObjectFields(ProjectModel::SongGroupNode* n,
                              const std::function<bool(amuse::ObjectId, amuse::NameDB*)>& func) {
  for (const auto& p : n->m_index->m_normPages)
    if (!func(p.second.objId.id, nullptr))
      return;
  for (const auto& p : n->m_index->m_drumPages)
    if (!func(p.second.objId.id, nullptr))
      return;
}

static void VisitObjectFields(ProjectModel::SoundGroupNode* n,
                              const std::function<bool(amuse::ObjectId, amuse::NameDB*)>& func) {
  for (const auto& p : n->m_index->m_sfxEntries)
    if (!func(p.second.objId.id, nullptr))
      return;
}

static void VisitObjectFields(ProjectModel::SoundMacroNode* n,
                              const std::function<bool(amuse::ObjectId, amuse::NameDB*)>& func) {
  for (const auto& p : n->m_obj->m_cmds) {
    const amuse::SoundMacro::CmdIntrospection* in = amuse::SoundMacro::GetCmdIntrospection(p->Isa());
    if (!in)
      continue;
    for (int i = 0; i < 7; ++i) {
      const auto& field = in->m_fields[i];
      if (field.m_name.empty())
        break;
      switch (field.m_tp) {
      case amuse::SoundMacro::CmdIntrospection::Field::Type::SoundMacroId:
        if (!func(amuse::AccessField<amuse::SoundMacroIdDNA<athena::Endian::Little>>(p.get(), field).id,
                  amuse::SoundMacroId::CurNameDB)) {
          return;
        }
        break;
      case amuse::SoundMacro::CmdIntrospection::Field::Type::TableId:
        if (!func(amuse::AccessField<amuse::TableIdDNA<athena::Endian::Little>>(p.get(), field).id,
                  amuse::TableId::CurNameDB)) {
          return;
        }
        break;
      case amuse::SoundMacro::CmdIntrospection::Field::Type::SampleId:
        if (!func(amuse::AccessField<amuse::SampleIdDNA<athena::Endian::Little>>(p.get(), field).id,
                  amuse::SampleId::CurNameDB)) {
          return;
        }
        break;
      default:
        break;
      }
    }
  }
}

static void VisitObjectFields(ProjectModel::KeymapNode* n,
                              const std::function<bool(amuse::ObjectId, amuse::NameDB*)>& func) {
  for (const auto& p : *n->m_obj)
    if (!func(p.macro.id, amuse::SoundMacroId::CurNameDB))
      return;
}

static void VisitObjectFields(ProjectModel::LayersNode* n,
                              const std::function<bool(amuse::ObjectId, amuse::NameDB*)>& func) {
  for (const auto& p : *n->m_obj)
    if (!func(p.macro.id, amuse::SoundMacroId::CurNameDB))
      return;
}

bool OutlineFilterProxyModel::filterAcceptsRow(int sourceRow, const QModelIndex& sourceParent) const {
  if (m_usageKey.pattern().isEmpty())
    return QSortFilterProxyModel::filterAcceptsRow(sourceRow, sourceParent);

  ProjectModel* model = static_cast<ProjectModel*>(sourceModel());
  ProjectModel::INode* node = model->node(model->index(sourceRow, 0, sourceParent));
  ProjectModel::GroupNode* gn = model->getGroupNode(node);
  if (!gn)
    return true;
  model->setIdDatabases(gn);

  bool foundMatch = false;
  auto visitor = [this, &foundMatch](amuse::ObjectId id, amuse::NameDB* db) {
    if (id.id == 0xffff)
      return true;

    std::string_view name;
    if (!db) {
      if (id.id & 0x8000)
        name = amuse::LayersId::CurNameDB->resolveNameFromId(id);
      else if (id.id & 0x4000)
        name = amuse::KeymapId::CurNameDB->resolveNameFromId(id);
      else
        name = amuse::SoundMacroId::CurNameDB->resolveNameFromId(id);
    } else {
      auto search = db->m_idToString.find(id);
      if (search != db->m_idToString.cend())
        name = search->second;
    }

    if (!name.empty() && QString::fromUtf8(name.data(), int(name.length())).contains(m_usageKey)) {
      foundMatch = true;
      return false;
    }

    return true;
  };

  switch (node->type()) {
  case ProjectModel::INode::Type::SongGroup:
    VisitObjectFields(static_cast<ProjectModel::SongGroupNode*>(node), visitor);
    break;
  case ProjectModel::INode::Type::SoundGroup:
    VisitObjectFields(static_cast<ProjectModel::SoundGroupNode*>(node), visitor);
    break;
  case ProjectModel::INode::Type::SoundMacro:
    VisitObjectFields(static_cast<ProjectModel::SoundMacroNode*>(node), visitor);
    break;
  case ProjectModel::INode::Type::Keymap:
    VisitObjectFields(static_cast<ProjectModel::KeymapNode*>(node), visitor);
    break;
  case ProjectModel::INode::Type::Layer:
    VisitObjectFields(static_cast<ProjectModel::LayersNode*>(node), visitor);
    break;
  default:
    break;
  }

  return foundMatch;
}

NullItemProxyModel::NullItemProxyModel(ProjectModel* source) : QIdentityProxyModel(source) { setSourceModel(source); }

QModelIndex NullItemProxyModel::mapFromSource(const QModelIndex& sourceIndex) const {
  if (!sourceIndex.isValid())
    return QModelIndex();
  if (sourceIndex.row() == sourceModel()->rowCount(sourceIndex.parent()))
    return createIndex(0, sourceIndex.column(), sourceIndex.internalPointer());
  return createIndex(sourceIndex.row() + 1, sourceIndex.column(), sourceIndex.internalPointer());
}

QModelIndex NullItemProxyModel::mapToSource(const QModelIndex& proxyIndex) const {
  if (!proxyIndex.isValid())
    return QModelIndex();
  return static_cast<ProjectModel*>(sourceModel())
      ->proxyCreateIndex(proxyIndex.row() - 1, proxyIndex.column(), proxyIndex.internalPointer());
}

int NullItemProxyModel::rowCount(const QModelIndex& parent) const { return QIdentityProxyModel::rowCount(parent) + 1; }

QModelIndex NullItemProxyModel::index(int row, int column, const QModelIndex& parent) const {
  const QModelIndex sourceParent = mapToSource(parent);
  const QModelIndex sourceIndex = sourceModel()->index(row - 1, column, sourceParent);
  return mapFromSource(sourceIndex);
}

QVariant NullItemProxyModel::data(const QModelIndex& proxyIndex, int role) const {
  if (!proxyIndex.isValid() || proxyIndex.row() == 0)
    return QVariant();
  return QIdentityProxyModel::data(proxyIndex, role);
}

PageObjectProxyModel::PageObjectProxyModel(ProjectModel* source) : QIdentityProxyModel(source) {
  setSourceModel(source);
}

QModelIndex PageObjectProxyModel::mapFromSource(const QModelIndex& sourceIndex) const {
  if (!sourceIndex.isValid())
    return QModelIndex();
  ProjectModel::INode* node = static_cast<ProjectModel::INode*>(sourceIndex.internalPointer());
  auto tp = node->type();
  if ((tp != ProjectModel::INode::Type::SoundMacro && tp != ProjectModel::INode::Type::Keymap &&
       tp != ProjectModel::INode::Type::Layer && tp != ProjectModel::INode::Type::Null) ||
      (tp == ProjectModel::INode::Type::Null &&
       node->parent() == static_cast<ProjectModel*>(sourceModel())->rootNode()))
    return createIndex(sourceIndex.row(), sourceIndex.column(), node);
  ProjectModel::GroupNode* group = static_cast<ProjectModel*>(sourceModel())->getGroupNode(node);
  ProjectModel::CollectionNode* smCol = group->getCollectionOfType(ProjectModel::INode::Type::SoundMacro);
  ProjectModel::CollectionNode* kmCol = group->getCollectionOfType(ProjectModel::INode::Type::Keymap);
  ProjectModel::CollectionNode* layCol = group->getCollectionOfType(ProjectModel::INode::Type::Layer);
  switch (tp) {
  case ProjectModel::INode::Type::Null:
    if (node->parent() == group)
      return createIndex(0, sourceIndex.column(), sourceIndex.internalPointer());
    else if (node->parent() == smCol)
      return createIndex(1, sourceIndex.column(), sourceIndex.internalPointer());
    else if (node->parent() == kmCol)
      return createIndex(2 + smCol->childCount(), sourceIndex.column(), sourceIndex.internalPointer());
    else if (node->parent() == layCol)
      return createIndex(3 + smCol->childCount() + kmCol->childCount(), sourceIndex.column(),
                         sourceIndex.internalPointer());
    break;
  case ProjectModel::INode::Type::SoundMacro:
    return createIndex(2 + node->row(), sourceIndex.column(), sourceIndex.internalPointer());
  case ProjectModel::INode::Type::Keymap:
    return createIndex(3 + smCol->childCount() + node->row(), sourceIndex.column(), sourceIndex.internalPointer());
  case ProjectModel::INode::Type::Layer:
    return createIndex(4 + smCol->childCount() + kmCol->childCount() + node->row(), sourceIndex.column(),
                       sourceIndex.internalPointer());
  default:
    break;
  }
  return QModelIndex();
}

QModelIndex PageObjectProxyModel::mapToSource(const QModelIndex& proxyIndex) const {
  if (!proxyIndex.isValid())
    return QModelIndex();
  ProjectModel::INode* node = static_cast<ProjectModel::INode*>(proxyIndex.internalPointer());
  auto tp = node->type();
  if ((tp != ProjectModel::INode::Type::SoundMacro && tp != ProjectModel::INode::Type::Keymap &&
       tp != ProjectModel::INode::Type::Layer && tp != ProjectModel::INode::Type::Null) ||
      (tp == ProjectModel::INode::Type::Null &&
       node->parent() == static_cast<ProjectModel*>(sourceModel())->rootNode()))
    return static_cast<ProjectModel*>(sourceModel())
        ->proxyCreateIndex(proxyIndex.row(), proxyIndex.column(), proxyIndex.internalPointer());
  ProjectModel::GroupNode* group = static_cast<ProjectModel*>(sourceModel())->getGroupNode(node);
  ProjectModel::CollectionNode* smCol = group->getCollectionOfType(ProjectModel::INode::Type::SoundMacro);
  ProjectModel::CollectionNode* kmCol = group->getCollectionOfType(ProjectModel::INode::Type::Keymap);
  ProjectModel::CollectionNode* layCol = group->getCollectionOfType(ProjectModel::INode::Type::Layer);
  switch (tp) {
  case ProjectModel::INode::Type::Null:
    if (node->parent() == group)
      return static_cast<ProjectModel*>(sourceModel())
          ->proxyCreateIndex(group->childCount(), proxyIndex.column(), proxyIndex.internalPointer());
    else if (node->parent() == smCol)
      return static_cast<ProjectModel*>(sourceModel())
          ->proxyCreateIndex(smCol->childCount(), proxyIndex.column(), proxyIndex.internalPointer());
    else if (node->parent() == kmCol)
      return static_cast<ProjectModel*>(sourceModel())
          ->proxyCreateIndex(kmCol->childCount(), proxyIndex.column(), proxyIndex.internalPointer());
    else if (node->parent() == layCol)
      return static_cast<ProjectModel*>(sourceModel())
          ->proxyCreateIndex(layCol->childCount(), proxyIndex.column(), proxyIndex.internalPointer());
    break;
  case ProjectModel::INode::Type::SoundMacro:
    return static_cast<ProjectModel*>(sourceModel())
        ->proxyCreateIndex(node->row() - 2, proxyIndex.column(), proxyIndex.internalPointer());
  case ProjectModel::INode::Type::Keymap:
    return static_cast<ProjectModel*>(sourceModel())
        ->proxyCreateIndex(node->row() - smCol->childCount() - 3, proxyIndex.column(), proxyIndex.internalPointer());
  case ProjectModel::INode::Type::Layer:
    return static_cast<ProjectModel*>(sourceModel())
        ->proxyCreateIndex(node->row() - kmCol->childCount() - smCol->childCount() - 4, proxyIndex.column(),
                           proxyIndex.internalPointer());
  default:
    break;
  }
  return QModelIndex();
}

QModelIndex PageObjectProxyModel::parent(const QModelIndex& child) const {
  if (!child.isValid())
    return QModelIndex();
  ProjectModel::INode* node = static_cast<ProjectModel::INode*>(child.internalPointer());
  auto tp = node->type();
  if ((tp != ProjectModel::INode::Type::SoundMacro && tp != ProjectModel::INode::Type::Keymap &&
       tp != ProjectModel::INode::Type::Layer && tp != ProjectModel::INode::Type::Null) ||
      (tp == ProjectModel::INode::Type::Null &&
       node->parent() == static_cast<ProjectModel*>(sourceModel())->rootNode()))
    return QIdentityProxyModel::parent(child);
  ProjectModel::INode* group = node->parent();
  if (group->type() == ProjectModel::INode::Type::Collection)
    group = group->parent();
  return createIndex(group->row(), 0, group);
}

int PageObjectProxyModel::rowCount(const QModelIndex& parent) const {
  ProjectModel::INode* node;
  if (!parent.isValid())
    node = static_cast<ProjectModel*>(sourceModel())->node(parent);
  else
    node = static_cast<ProjectModel::INode*>(parent.internalPointer());
  auto tp = node->type();
  if (tp != ProjectModel::INode::Type::Group)
    return static_cast<ProjectModel*>(sourceModel())->rowCount(parent);
  ProjectModel::GroupNode* group = static_cast<ProjectModel::GroupNode*>(node);
  ProjectModel::CollectionNode* smCol = group->getCollectionOfType(ProjectModel::INode::Type::SoundMacro);
  ProjectModel::CollectionNode* kmCol = group->getCollectionOfType(ProjectModel::INode::Type::Keymap);
  ProjectModel::CollectionNode* layCol = group->getCollectionOfType(ProjectModel::INode::Type::Layer);
  return 4 + smCol->childCount() + kmCol->childCount() + layCol->childCount();
}

QModelIndex PageObjectProxyModel::index(int row, int column, const QModelIndex& parent) const {
  if (!parent.isValid())
    return QIdentityProxyModel::index(row, column, parent);
  ProjectModel::INode* parentNode = static_cast<ProjectModel::INode*>(parent.internalPointer());
  auto ptp = parentNode->type();
  if (ptp != ProjectModel::INode::Type::Group)
    return QIdentityProxyModel::index(row, column, parent);
  ProjectModel::GroupNode* group = static_cast<ProjectModel::GroupNode*>(parentNode);
  ProjectModel::CollectionNode* smCol = group->getCollectionOfType(ProjectModel::INode::Type::SoundMacro);
  ProjectModel::CollectionNode* kmCol = group->getCollectionOfType(ProjectModel::INode::Type::Keymap);
  ProjectModel::CollectionNode* layCol = group->getCollectionOfType(ProjectModel::INode::Type::Layer);
  if (row == 0)
    return createIndex(row, column, group->nullChild());
  else if (row == 1)
    return createIndex(row, column, smCol->nullChild());
  else if (row < 2 + smCol->childCount())
    return createIndex(row, column, smCol->child(row - 2));
  else if (row == 2 + smCol->childCount())
    return createIndex(row, column, kmCol->nullChild());
  else if (row < 3 + smCol->childCount() + kmCol->childCount())
    return createIndex(row, column, kmCol->child(row - smCol->childCount() - 3));
  else if (row == 3 + smCol->childCount() + kmCol->childCount())
    return createIndex(row, column, layCol->nullChild());
  else if (row < 4 + smCol->childCount() + kmCol->childCount() + layCol->childCount())
    return createIndex(row, column, layCol->child(row - kmCol->childCount() - smCol->childCount() - 4));
  return QModelIndex();
}

QVariant PageObjectProxyModel::data(const QModelIndex& proxyIndex, int role) const {
  if (role != Qt::DisplayRole || !proxyIndex.isValid() || proxyIndex.row() == 0)
    return QVariant();
  ProjectModel::INode* node = static_cast<ProjectModel::INode*>(proxyIndex.internalPointer());
  auto tp = node->type();
  if ((tp != ProjectModel::INode::Type::SoundMacro && tp != ProjectModel::INode::Type::Keymap &&
       tp != ProjectModel::INode::Type::Layer && tp != ProjectModel::INode::Type::Null) ||
      (tp == ProjectModel::INode::Type::Null &&
       node->parent() == static_cast<ProjectModel*>(sourceModel())->rootNode()))
    return QVariant();
  ProjectModel::GroupNode* group = static_cast<ProjectModel*>(sourceModel())->getGroupNode(node);
  ProjectModel::CollectionNode* smCol = group->getCollectionOfType(ProjectModel::INode::Type::SoundMacro);
  ProjectModel::CollectionNode* kmCol = group->getCollectionOfType(ProjectModel::INode::Type::Keymap);
  ProjectModel::CollectionNode* layCol = group->getCollectionOfType(ProjectModel::INode::Type::Layer);
  switch (tp) {
  case ProjectModel::INode::Type::Null:
    if (node->parent() == group)
      return QVariant();
    else if (node->parent() == smCol)
      return tr("SoundMacros:");
    else if (node->parent() == kmCol)
      return tr("Keymaps:");
    else if (node->parent() == layCol)
      return tr("Layers:");
    break;
  case ProjectModel::INode::Type::SoundMacro:
  case ProjectModel::INode::Type::Keymap:
  case ProjectModel::INode::Type::Layer:
    return node->text();
  default:
    break;
  }
  return QVariant();
}

Qt::ItemFlags PageObjectProxyModel::flags(const QModelIndex& proxyIndex) const {
  if (!proxyIndex.isValid())
    return Qt::NoItemFlags;
  if (proxyIndex.row() == 0)
    return Qt::ItemIsEnabled | Qt::ItemIsSelectable;
  ProjectModel::INode* node = static_cast<ProjectModel::INode*>(proxyIndex.internalPointer());
  auto tp = node->type();
  if (tp == ProjectModel::INode::Type::Null)
    return Qt::NoItemFlags;
  if (tp != ProjectModel::INode::Type::SoundMacro && tp != ProjectModel::INode::Type::Keymap &&
      tp != ProjectModel::INode::Type::Layer)
    return Qt::NoItemFlags;
  return Qt::ItemIsEnabled | Qt::ItemIsSelectable;
}

void ProjectModel::NameUndoRegistry::registerSongName(amuse::SongId id) const {
  auto search = m_songIDs.find(id);
  if (search != m_songIDs.cend())
    g_MainWindow->projectModel()->allocateSongId(id, search->second);
}
void ProjectModel::NameUndoRegistry::unregisterSongName(amuse::SongId id) {
  auto search = amuse::SongId::CurNameDB->m_idToString.find(id);
  if (search != amuse::SongId::CurNameDB->m_idToString.cend())
    m_songIDs[id] = search->second;
  g_MainWindow->projectModel()->deallocateSongId(id);
}
void ProjectModel::NameUndoRegistry::registerSFXName(amuse::SongId id) const {
  auto search = m_sfxIDs.find(id);
  if (search != m_sfxIDs.cend())
    amuse::SFXId::CurNameDB->registerPair(search->second, id);
}
void ProjectModel::NameUndoRegistry::unregisterSFXName(amuse::SongId id) {
  auto search = amuse::SFXId::CurNameDB->m_idToString.find(id);
  if (search != amuse::SFXId::CurNameDB->m_idToString.cend())
    m_sfxIDs[id] = search->second;
  amuse::SFXId::CurNameDB->remove(id);
}

ProjectModel::INode::INode(QString name) : m_name(std::move(name)) {
  auto nullNode = amuse::MakeObj<NullNode>(this);
  m_nullChild = nullNode.get();
}

void ProjectModel::INode::_sortChildren() {
  std::sort(m_children.begin(), m_children.end(), [](const auto& a, const auto& b) { return a->name() < b->name(); });
  reindexRows(0);
}

int ProjectModel::INode::hypotheticalIndex(const QString& name) const {
  auto search =
      std::lower_bound(m_children.cbegin(), m_children.cend(), name,
                       [](const amuse::IObjToken<INode>& item, const QString& name) { return item->name() < name; });
  return int(search - m_children.cbegin());
}

int ProjectModel::GroupNode::hypotheticalIndex(const QString& name) const {
  /* Insert prior to pool object collections */
  auto search =
      std::lower_bound(m_children.cbegin(), m_children.cend() - 6, name,
                       [](const amuse::IObjToken<INode>& item, const QString& name) { return item->name() < name; });
  return int(search - m_children.cbegin());
}

void ProjectModel::GroupNode::_sortChildren() {
  /* Sort prior to pool object collections */
  std::sort(m_children.begin(), m_children.end() - 6,
            [](const auto& a, const auto& b) { return a->name() < b->name(); });
  reindexRows(0);
}

ProjectModel::CollectionNode* ProjectModel::GroupNode::getCollectionOfType(Type tp) const {
  for (auto it = m_children.rbegin(); it != m_children.rend(); ++it) {
    if ((*it)->type() == Type::Collection) {
      CollectionNode* col = static_cast<CollectionNode*>(it->get());
      if (col->collectionType() == tp)
        return col;
    }
  }
  return nullptr;
}

ProjectModel::BasePoolObjectNode* ProjectModel::GroupNode::pageObjectNodeOfId(amuse::ObjectId id) const {
  if (ProjectModel::BasePoolObjectNode* ret = getCollectionOfType(Type::SoundMacro)->nodeOfId(id))
    return ret;
  if (ProjectModel::BasePoolObjectNode* ret = getCollectionOfType(Type::Keymap)->nodeOfId(id))
    return ret;
  if (ProjectModel::BasePoolObjectNode* ret = getCollectionOfType(Type::Layer)->nodeOfId(id))
    return ret;
  return nullptr;
}

int ProjectModel::CollectionNode::indexOfId(amuse::ObjectId id) const {
  int ret = 0;
  for (auto& n : m_children) {
    if (static_cast<BasePoolObjectNode*>(n.get())->id() == id)
      return ret;
    ++ret;
  }
  return -1;
}

amuse::ObjectId ProjectModel::CollectionNode::idOfIndex(int idx) const {
  return static_cast<BasePoolObjectNode*>(m_children[idx].get())->id();
}

ProjectModel::BasePoolObjectNode* ProjectModel::CollectionNode::nodeOfIndex(int idx) const {
  return static_cast<BasePoolObjectNode*>(m_children[idx].get());
}

ProjectModel::BasePoolObjectNode* ProjectModel::CollectionNode::nodeOfId(amuse::ObjectId id) const {
  int idx = indexOfId(id);
  if (idx < 0)
    return nullptr;
  return nodeOfIndex(idx);
}

ProjectModel::ProjectModel(const QString& path, QObject* parent)
: QAbstractItemModel(parent), m_dir(path), m_outlineProxy(this), m_nullProxy(this), m_pageObjectProxy(this) {
  m_root = amuse::MakeObj<RootNode>();

  GroupNode::Icon = QIcon(QStringLiteral(":/icons/IconGroup.svg"));
  SongGroupNode::Icon = QIcon(QStringLiteral(":/icons/IconSongGroup.svg"));
  SoundGroupNode::Icon = QIcon(QStringLiteral(":/icons/IconSoundGroup.svg"));
}

ProjectModel::~ProjectModel() = default;

bool ProjectModel::clearProjectData() {
  m_projectDatabase = amuse::ProjectDatabase();
  m_groups.clear();
  m_midiFiles.clear();

  m_needsReset = true;
  return true;
}

bool ProjectModel::openGroupData(QString groupName, UIMessenger& messenger) {
  m_projectDatabase.setIdDatabases();
  const QString path = QFileInfo(m_dir, groupName).filePath();
  m_groups.emplace(std::move(groupName), std::make_unique<amuse::AudioGroupDatabase>(QStringToSysString(path)));

  m_needsReset = true;
  return true;
}

void ProjectModel::_resetSongRefCount() {
  for (auto& song : m_midiFiles)
    song.second.m_refCount = 0;
  for (const auto& g : m_groups)
    for (const auto& g2 : g.second->getProj().songGroups())
      for (const auto& m : g2.second->m_midiSetups)
        ++m_midiFiles[m.first].m_refCount;
  for (auto it = m_midiFiles.begin(); it != m_midiFiles.end();) {
    if (it->second.m_refCount == 0) {
      it = m_midiFiles.erase(it);
      continue;
    }
    ++it;
  }
}

void ProjectModel::openSongsData() {
  m_midiFiles.clear();
  QFileInfo songsFile(m_dir, QStringLiteral("!songs.yaml"));
  if (songsFile.exists()) {
    athena::io::FileReader r(QStringToSysString(songsFile.filePath()));
    if (!r.hasError()) {
      athena::io::YAMLDocReader dr;
      if (dr.parse(&r)) {
        m_midiFiles.reserve(dr.getRootNode()->m_mapChildren.size());
        for (auto& p : dr.getRootNode()->m_mapChildren) {
          char* endPtr;
          amuse::SongId id = uint16_t(strtoul(p.first.c_str(), &endPtr, 16));

          if (endPtr == p.first.c_str() || id.id == 0xffff) {
            continue;
          }

          QString path = QString::fromStdString(p.second->m_scalarString);
          setMIDIPathOfSong(id, std::move(path));
        }
        _resetSongRefCount();
      }
    }
  }
}

void ProjectModel::importSongsData(const QString& path) {
  std::vector<std::pair<amuse::SystemString, amuse::ContainerRegistry::SongData>> songs =
      amuse::ContainerRegistry::LoadSongs(QStringToSysString(path).c_str());

  for (const auto& song : songs) {
    int version;
    bool isBig;
    auto midiData = amuse::SongConverter::SongToMIDI(song.second.m_data.get(), version, isBig);
    if (!midiData.empty()) {
      QFileInfo fi(m_dir, SysStringToQString(song.first + _SYS_STR(".mid")));
      QFile f(fi.filePath());
      if (f.open(QFile::WriteOnly)) {
        f.write((const char*)midiData.data(), midiData.size());
        setMIDIPathOfSong(song.second.m_setupId, m_dir.relativeFilePath(fi.filePath()));
      }
    }
  }

  saveSongsIndex();
  _resetSongRefCount();
}

bool ProjectModel::reloadSampleData(const QString& groupName, UIMessenger&) {
  m_projectDatabase.setIdDatabases();
  QString path = QFileInfo(m_dir, groupName).filePath();
  auto search = m_groups.find(groupName);
  if (search != m_groups.end())
    search->second->getSdir().reloadSampleData(QStringToSysString(path));

  m_needsReset = true;
  return true;
}

bool ProjectModel::importGroupData(const QString& groupName, const amuse::AudioGroupData& data, ImportMode mode,
                                   UIMessenger& messenger) {
  m_projectDatabase.setIdDatabases();

  amuse::AudioGroupDatabase& grp =
      *m_groups.insert(std::make_pair(groupName, std::make_unique<amuse::AudioGroupDatabase>(data))).first->second;

  if (!MkPath(m_dir.path(), messenger))
    return false;
  QDir dir(QFileInfo(m_dir, groupName).filePath());
  if (!MkPath(dir.path(), messenger))
    return false;

  amuse::SystemString sysDir = QStringToSysString(dir.path());
  grp.setGroupPath(sysDir);
  switch (mode) {
  case ImportMode::Original:
    grp.getSdir().extractAllCompressed(sysDir, data.getSamp());
    break;
  case ImportMode::WAVs:
    grp.getSdir().extractAllWAV(sysDir, data.getSamp());
    break;
  case ImportMode::Both:
    grp.getSdir().extractAllWAV(sysDir, data.getSamp());
    grp.getSdir().extractAllCompressed(sysDir, data.getSamp());
    break;
  default:
    break;
  }

  {
    auto proj = grp.getProj().toYAML();
    athena::io::FileWriter fo(QStringToSysString(QFileInfo(dir, QStringLiteral("!project.yaml")).filePath()));
    if (fo.hasError())
      return false;
    fo.writeUBytes(proj.data(), proj.size());
  }
  {
    auto pool = grp.getPool().toYAML();
    athena::io::FileWriter fo(QStringToSysString(QFileInfo(dir, QStringLiteral("!pool.yaml")).filePath()));
    if (fo.hasError())
      return false;
    fo.writeUBytes(pool.data(), pool.size());
  }

  m_needsReset = true;
  return true;
}

void ProjectModel::saveSongsIndex() {
  if (!m_midiFiles.empty()) {
    QFileInfo songsFile(m_dir, QStringLiteral("!songs.yaml"));
    athena::io::YAMLDocWriter dw("amuse::Songs");
    for (auto& p : amuse::SortUnorderedMap(m_midiFiles))
      dw.writeString(fmt::format(FMT_STRING("{}"), p.first), p.second.get().m_path.toUtf8().data());
    athena::io::FileWriter w(QStringToSysString(songsFile.filePath()));
    if (!w.hasError())
      dw.finish(&w);
  }
}

bool ProjectModel::saveToFile(UIMessenger& messenger) {
  m_projectDatabase.setIdDatabases();

  if (!MkPath(m_dir.path(), messenger))
    return false;

  for (auto& g : m_groups) {
    QDir dir(QFileInfo(m_dir, g.first).filePath());
    if (!MkPath(dir.path(), messenger))
      return false;
    {
      auto proj = g.second->getProj().toYAML();
      athena::io::FileWriter fo(QStringToSysString(QFileInfo(dir, QStringLiteral("!project.yaml")).filePath()));
      if (fo.hasError())
        return false;
      fo.writeUBytes(proj.data(), proj.size());
    }
    {
      auto pool = g.second->getPool().toYAML();
      athena::io::FileWriter fo(QStringToSysString(QFileInfo(dir, QStringLiteral("!pool.yaml")).filePath()));
      if (fo.hasError())
        return false;
      fo.writeUBytes(pool.data(), pool.size());
    }
  }

  saveSongsIndex();

  return true;
}

QStringList ProjectModel::getGroupList() const {
  QStringList list;
  list.reserve(m_root->childCount());
  m_root->oneLevelTraverse([&list](INode* node) {
    list.push_back(node->name());
    return true;
  });
  return list;
}

bool ProjectModel::exportGroup(const QString& path, const QString& groupName, UIMessenger& messenger) const {
  if (!MkPath(path, messenger))
    return false;
  auto search = m_groups.find(groupName);
  if (search == m_groups.cend()) {
    messenger.critical(tr("Export Error"), tr("Unable to find group %1").arg(groupName));
    return false;
  }
  const amuse::AudioGroupDatabase& group = *search->second;
  m_projectDatabase.setIdDatabases();
  QString basePath = QFileInfo(QDir(path), groupName).filePath();
  {
    auto proj = group.getProj().toGCNData(group.getPool(), group.getSdir());
    athena::io::FileWriter fo(QStringToSysString(basePath + QStringLiteral(".proj")));
    if (fo.hasError()) {
      messenger.critical(tr("Export Error"), tr("Unable to export %1.proj").arg(groupName));
      return false;
    }
    fo.writeUBytes(proj.data(), proj.size());
  }
  {
    auto pool = group.getPool().toData<athena::Endian::Big>();
    athena::io::FileWriter fo(QStringToSysString(basePath + QStringLiteral(".pool")));
    if (fo.hasError()) {
      messenger.critical(tr("Export Error"), tr("Unable to export %1.pool").arg(groupName));
      return false;
    }
    fo.writeUBytes(pool.data(), pool.size());
  }
  {
    auto sdirSamp = group.getSdir().toGCNData(group);
    {
      athena::io::FileWriter fo(QStringToSysString(basePath + QStringLiteral(".sdir")));
      if (fo.hasError()) {
        messenger.critical(tr("Export Error"), tr("Unable to export %1.sdir").arg(groupName));
        return false;
      }
      fo.writeUBytes(sdirSamp.first.data(), sdirSamp.first.size());
    }
    {
      athena::io::FileWriter fo(QStringToSysString(basePath + QStringLiteral(".samp")));
      if (fo.hasError()) {
        messenger.critical(tr("Export Error"), tr("Unable to export %1.samp").arg(groupName));
        return false;
      }
      fo.writeUBytes(sdirSamp.second.data(), sdirSamp.second.size());
    }
  }
  return true;
}

bool ProjectModel::importHeader(const QString& path, const QString& groupName, UIMessenger& messenger) const {
  m_projectDatabase.setIdDatabases();
  auto search = m_groups.find(groupName);
  if (search == m_groups.cend()) {
    messenger.critical(tr("Import Error"), tr("Unable to find group %1").arg(groupName));
    return false;
  }

  QFileInfo fi(QDir(path), QStringLiteral("%1.h").arg(groupName));
  if (!fi.exists())
    return true;

  QFile fo(fi.filePath());
  if (!fo.open(QFile::ReadOnly)) {
    messenger.critical(tr("Export Header Error"), tr("Unable to open %1 for reading").arg(fi.filePath()));
    return false;
  }

  auto data = fo.readAll();
  search->second->importCHeader(std::string_view(data.data(), data.size()));

  return true;
}

bool ProjectModel::exportHeader(const QString& path, const QString& groupName, bool& yesToAll,
                                UIMessenger& messenger) const {
  m_projectDatabase.setIdDatabases();
  auto search = m_groups.find(groupName);
  if (search == m_groups.cend()) {
    messenger.critical(tr("Export Error"), tr("Unable to find group %1").arg(groupName));
    return false;
  }

  QFileInfo fi(QDir(path), QStringLiteral("%1.h").arg(groupName));
  if (!yesToAll && fi.exists()) {
    auto result = messenger.question(tr("File Exists"), tr("%1 already exists. Overwrite?").arg(fi.filePath()),
                                     QMessageBox::Yes | QMessageBox::No | QMessageBox::YesToAll | QMessageBox::NoToAll);
    if (result == QMessageBox::No)
      return true;
    else if (result == QMessageBox::NoToAll)
      return false;
    else if (result == QMessageBox::YesToAll)
      yesToAll = true;
  }
  std::string header = search->second->exportCHeader(m_dir.dirName().toUtf8().data(), groupName.toUtf8().data());
  QFile fo(fi.filePath());
  if (fo.open(QFile::WriteOnly))
    fo.write(header.data(), header.size());

  return true;
}

void ProjectModel::updateNodeNames() {
  beginResetModel();
  m_root->oneLevelTraverse([this](INode* n) {
    GroupNode* gn = static_cast<GroupNode*>(n);
    setIdDatabases(gn);
    gn->oneLevelTraverse([](INode* n) {
      if (n->type() == INode::Type::SongGroup) {
        SongGroupNode* sgn = static_cast<SongGroupNode*>(n);
        sgn->m_name = QString::fromUtf8(amuse::GroupId::CurNameDB->resolveNameFromId(sgn->m_id).data());
      } else if (n->type() == INode::Type::SoundGroup) {
        SoundGroupNode* sgn = static_cast<SoundGroupNode*>(n);
        sgn->m_name = QString::fromUtf8(amuse::GroupId::CurNameDB->resolveNameFromId(sgn->m_id).data());
      } else if (n->type() == INode::Type::Collection) {
        CollectionNode* cn = static_cast<CollectionNode*>(n);
        cn->oneLevelTraverse([](INode* n) {
          BasePoolObjectNode* on = static_cast<BasePoolObjectNode*>(n);
          on->m_name = QString::fromUtf8(on->getNameDb()->resolveNameFromId(on->m_id).data());
          return true;
        });
        cn->_sortChildren();
      }
      return true;
    });
    gn->_sortChildren();
    return true;
  });
  m_root->_sortChildren();
  endResetModel();
}

void ProjectModel::_buildGroupNodeCollections(GroupNode& gn) {
  gn.reserve(6);
  gn._appendChild<CollectionNode>(tr("Sound Macros"), QIcon(QStringLiteral(":/icons/IconSoundMacro.svg")),
                                  INode::Type::SoundMacro);
  gn._appendChild<CollectionNode>(tr("ADSRs"), QIcon(QStringLiteral(":/icons/IconADSR.svg")), INode::Type::ADSR);
  gn._appendChild<CollectionNode>(tr("Curves"), QIcon(QStringLiteral(":/icons/IconCurve.svg")), INode::Type::Curve);
  gn._appendChild<CollectionNode>(tr("Keymaps"), QIcon(QStringLiteral(":/icons/IconKeymap.svg")), INode::Type::Keymap);
  gn._appendChild<CollectionNode>(tr("Layers"), QIcon(QStringLiteral(":/icons/IconLayers.svg")), INode::Type::Layer);
  gn._appendChild<CollectionNode>(tr("Samples"), QIcon(QStringLiteral(":/icons/IconSample.svg")), INode::Type::Sample);
}

void ProjectModel::_buildGroupNode(GroupNode& gn, amuse::AudioGroup& group) {
  auto& songGroups = group.getProj().songGroups();
  auto& sfxGroups = group.getProj().sfxGroups();
  auto& soundMacros = group.getPool().soundMacros();
  auto& tables = group.getPool().tables();
  auto& keymaps = group.getPool().keymaps();
  auto& layers = group.getPool().layers();
  auto& samples = group.getSdir().sampleEntries();
  gn.reserve(songGroups.size() + sfxGroups.size() + 6);
  _buildGroupNodeCollections(gn);
  for (const auto& grp : SortUnorderedMap(songGroups))
    gn.makeChild<SongGroupNode>(grp.first, grp.second.get());
  for (const auto& grp : SortUnorderedMap(sfxGroups))
    gn.makeChild<SoundGroupNode>(grp.first, grp.second.get());
  {
    CollectionNode& col = *gn.getCollectionOfType(INode::Type::SoundMacro);
    col.reserve(soundMacros.size());
    for (const auto& macro : SortUnorderedMap(soundMacros))
      col.makeChild<SoundMacroNode>(macro.first, macro.second.get());
  }
  {
    auto tablesSort = SortUnorderedMap(tables);
    size_t ADSRCount = 0;
    size_t curveCount = 0;
    for (auto& t : tablesSort) {
      amuse::ITable::Type tp = (*t.second.get())->Isa();
      if (tp == amuse::ITable::Type::ADSR || tp == amuse::ITable::Type::ADSRDLS)
        ADSRCount += 1;
      else if (tp == amuse::ITable::Type::Curve)
        curveCount += 1;
    }
    {
      CollectionNode& col = *gn.getCollectionOfType(INode::Type::ADSR);
      col.reserve(ADSRCount);
      for (auto& t : tablesSort) {
        amuse::ITable::Type tp = (*t.second.get())->Isa();
        if (tp == amuse::ITable::Type::ADSR || tp == amuse::ITable::Type::ADSRDLS)
          col.makeChild<ADSRNode>(t.first, t.second.get());
      }
    }
    {
      CollectionNode& col = *gn.getCollectionOfType(INode::Type::Curve);
      col.reserve(curveCount);
      for (auto& t : tablesSort) {
        amuse::ITable::Type tp = (*t.second.get())->Isa();
        if (tp == amuse::ITable::Type::Curve)
          col.makeChild<CurveNode>(t.first, t.second.get());
      }
    }
  }
  {
    CollectionNode& col = *gn.getCollectionOfType(INode::Type::Keymap);
    col.reserve(keymaps.size());
    for (auto& keymap : SortUnorderedMap(keymaps))
      col.makeChild<KeymapNode>(keymap.first, keymap.second.get());
  }
  {
    CollectionNode& col = *gn.getCollectionOfType(INode::Type::Layer);
    col.reserve(layers.size());
    for (auto& keymap : SortUnorderedMap(layers))
      col.makeChild<LayersNode>(keymap.first, keymap.second.get());
  }
  {
    CollectionNode& col = *gn.getCollectionOfType(INode::Type::Sample);
    col.reserve(samples.size());
    for (auto& sample : SortUnorderedMap(samples))
      col.makeChild<SampleNode>(sample.first, sample.second.get());
  }
}

void ProjectModel::_resetModelData() {
  beginResetModel();
  m_projectDatabase.setIdDatabases();
  m_root = amuse::MakeObj<RootNode>();
  m_root->reserve(m_groups.size());
  for (auto it = m_groups.begin(); it != m_groups.end(); ++it) {
    GroupNode& gn = m_root->makeChild<GroupNode>(it);
    _buildGroupNode(gn, *gn.m_it->second);
  }
  endResetModel();
}

bool ProjectModel::ensureModelData() {
  if (m_needsReset) {
    _resetModelData();
    m_needsReset = false;
  }
  return !m_groups.empty();
}

QModelIndex ProjectModel::proxyCreateIndex(int arow, int acolumn, void* adata) const {
  if (arow < 0) {
    INode* childItem = static_cast<INode*>(adata);
    return createIndex(childItem->parent()->childCount(), acolumn, adata);
  }
  return createIndex(arow, acolumn, adata);
}

QModelIndex ProjectModel::index(int row, int column, const QModelIndex& parent) const {
  if (row < 0) {
    INode* parentItem;
    if (!parent.isValid()) {
      parentItem = m_root.get();
    } else {
      assert(parent.model() == this && "Not ProjectModel");
      parentItem = static_cast<INode*>(parent.internalPointer());
    }

    INode* childItem = parentItem->nullChild();
    return createIndex(childItem->row(), column, childItem);
  }

  if (!hasIndex(row, column, parent))
    return QModelIndex();

  INode* parentItem;
  if (!parent.isValid()) {
    parentItem = m_root.get();
  } else {
    assert(parent.model() == this && "Not ProjectModel");
    parentItem = static_cast<INode*>(parent.internalPointer());
  }

  INode* childItem = parentItem->child(row);
  if (childItem)
    return createIndex(row, column, childItem);
  else
    return QModelIndex();
}

QModelIndex ProjectModel::index(INode* node) const {
  if (node == m_root.get())
    return QModelIndex();
  return createIndex(node->row(), 0, node);
}

QModelIndex ProjectModel::parent(const QModelIndex& index) const {
  if (!index.isValid())
    return QModelIndex();
  assert(index.model() == this && "Not ProjectModel");

  INode* childItem = static_cast<INode*>(index.internalPointer());
  INode* parentItem = childItem->parent();

  if (parentItem == m_root.get())
    return QModelIndex();

  return createIndex(parentItem->row(), 0, parentItem);
}

int ProjectModel::rowCount(const QModelIndex& parent) const {
  INode* parentItem;

  if (!parent.isValid())
    parentItem = m_root.get();
  else
    parentItem = static_cast<INode*>(parent.internalPointer());

  return parentItem->childCount();
}

int ProjectModel::columnCount(const QModelIndex& parent) const { return 1; }

QVariant ProjectModel::data(const QModelIndex& index, int role) const {
  if (!index.isValid())
    return QVariant();
  assert(index.model() == this && "Not ProjectModel");

  INode* item = static_cast<INode*>(index.internalPointer());

  switch (role) {
  case Qt::DisplayRole:
  case Qt::EditRole:
    return item->text();
  case Qt::DecorationRole:
    return item->icon();
  default:
    return {};
  }
}

class RenameNodeUndoCommand : public EditorUndoCommand {
  QString m_redoVal;
  QString m_undoVal;

public:
  explicit RenameNodeUndoCommand(const QString& text, ProjectModel::INode* node, QString redoVal)
  : EditorUndoCommand(node, text.arg(node->name())), m_redoVal(std::move(redoVal)) {}
  void undo() override { g_MainWindow->projectModel()->_renameNode(m_node.get(), m_undoVal); }
  void redo() override {
    m_undoVal = m_node->name();
    g_MainWindow->projectModel()->_renameNode(m_node.get(), m_redoVal);
  }
};

void ProjectModel::_renameNode(INode* node, const QString& name) {
  INode* parent = node->parent();
  if (!parent)
    return;
  if (parent->findChild(name))
    return;

  QString oldName = node->m_name;
  int oldIdx = parent->hypotheticalIndex(oldName);
  int newIdx = parent->hypotheticalIndex(name);
  bool moving = beginMoveRows(index(parent), oldIdx, oldIdx, index(parent), newIdx);
  node->m_name = name;
  parent->_sortChildren();
  switch (node->type()) {
  case INode::Type::Group:
    m_dir.rename(oldName, name);
    break;
  case INode::Type::Sample: {
    ProjectModel::GroupNode* group = getGroupNode(node);
    auto utf8Name = name.toUtf8();
    group->getAudioGroup()->renameSample(static_cast<SampleNode*>(node)->id(),
                                         std::string_view(utf8Name.data(), utf8Name.length()));
    g_MainWindow->saveAction();
    break;
  }
  default:
    break;
  }
  if (moving)
    endMoveRows();
  QModelIndex idx = index(node);
  emit dataChanged(idx, idx, {Qt::DisplayRole, Qt::EditRole});
  if (g_MainWindow->getEditorNode() == node)
    g_MainWindow->updateWindowTitle();
}

bool ProjectModel::setData(const QModelIndex& index, const QVariant& value, int role) {
  if (!index.isValid() || role != Qt::EditRole) {
    return false;
  }
  assert(index.model() == this && "Not ProjectModel");

  INode* item = static_cast<INode*>(index.internalPointer());
  const INode* parent = item->parent();
  if (!parent) {
    return false;
  }

  QString valueStr = value.toString();
  if (item->name() == valueStr) {
    return false;
  }

  if (parent->findChild(valueStr)) {
    g_MainWindow->uiMessenger().critical(tr("Naming Conflict"), tr("%1 already exists in this context").arg(valueStr));
    return false;
  }

  g_MainWindow->pushUndoCommand(new RenameNodeUndoCommand(tr("Rename %1"), item, std::move(valueStr)));
  return true;
}

Qt::ItemFlags ProjectModel::flags(const QModelIndex& index) const {
  if (!index.isValid())
    return Qt::NoItemFlags;
  assert(index.model() == this && "Not ProjectModel");

  return static_cast<INode*>(index.internalPointer())->flags();
}

ProjectModel::INode* ProjectModel::node(const QModelIndex& index) const {
  if (!index.isValid())
    return m_root.get();
  assert(index.model() == this && "Not ProjectModel");
  return static_cast<INode*>(index.internalPointer());
}

ProjectModel::GroupNode* ProjectModel::getGroupNode(INode* node) const {
  if (!node)
    return nullptr;
  if (node->type() == INode::Type::Group)
    return static_cast<GroupNode*>(node);
  return getGroupNode(node->parent());
}

AmuseItemEditFlags ProjectModel::editFlags(const QModelIndex& index) const {
  if (!index.isValid())
    return AmuseItemNone;
  assert(index.model() == this && "Not ProjectModel");
  return static_cast<INode*>(index.internalPointer())->editFlags();
}

void ProjectModel::_postAddNode(INode* n, const NameUndoRegistry& registry) {
  setIdDatabases(n);
  n->depthTraverse([&registry](INode* node) {
    node->registerNames(registry);
    return true;
  });
}

void ProjectModel::_preDelNode(INode* n, NameUndoRegistry& registry) {
  n->depthTraverse([&registry](INode* node) {
    g_MainWindow->aboutToDeleteNode(node);
    node->unregisterNames(registry);
    return true;
  });
}

class GroupNodeUndoCommand : public EditorUndoCommand {
protected:
  std::unique_ptr<amuse::AudioGroupDatabase> m_data;
  ProjectModel::NameUndoRegistry m_nameReg;
  void add() {
    g_MainWindow->projectModel()->_addNode(static_cast<ProjectModel::GroupNode*>(m_node.get()), std::move(m_data),
                                           m_nameReg);
    g_MainWindow->recursiveExpandAndSelectOutline(g_MainWindow->projectModel()->index(m_node.get()));
  }
  void del() {
    m_data = g_MainWindow->projectModel()->_delNode(static_cast<ProjectModel::GroupNode*>(m_node.get()), m_nameReg);
    setObsolete(true);
    g_MainWindow->m_undoStack->clear();
    g_MainWindow->m_undoStack->resetClean();
  }

public:
  explicit GroupNodeUndoCommand(const QString& text, std::unique_ptr<amuse::AudioGroupDatabase>&& data,
                                ProjectModel::GroupNode* node)
  : EditorUndoCommand(node, text.arg(node->text())), m_data(std::move(data)) {}
};

class GroupNodeAddUndoCommand : public GroupNodeUndoCommand {
  using base = GroupNodeUndoCommand;

public:
  explicit GroupNodeAddUndoCommand(const QString& text, std::unique_ptr<amuse::AudioGroupDatabase>&& data,
                                   ProjectModel::GroupNode* node)
  : GroupNodeUndoCommand(text, std::move(data), node) {}
  void undo() override { base::del(); }
  void redo() override { base::add(); }
};

class GroupNodeDelUndoCommand : public GroupNodeUndoCommand {
  using base = GroupNodeUndoCommand;

public:
  explicit GroupNodeDelUndoCommand(const QString& text, ProjectModel::GroupNode* node)
  : GroupNodeUndoCommand(text, {}, node) {}
  void undo() override { base::add(); }
  void redo() override { base::del(); }
};

void ProjectModel::_addNode(GroupNode* node, std::unique_ptr<amuse::AudioGroupDatabase>&& data,
                            const NameUndoRegistry& registry) {
  int idx = m_root->hypotheticalIndex(node->name());
  beginInsertRows(QModelIndex(), idx, idx);
  QDir dir(QFileInfo(m_dir, node->name()).filePath());
  node->m_it = m_groups.emplace(std::make_pair(node->name(), std::move(data))).first;
  m_root->insertChild(node);
  _postAddNode(node, registry);
  endInsertRows();
}

std::unique_ptr<amuse::AudioGroupDatabase> ProjectModel::_delNode(GroupNode* node, NameUndoRegistry& registry) {
  int idx = node->row();
  beginRemoveRows(QModelIndex(), idx, idx);
  _preDelNode(node, registry);
  std::unique_ptr<amuse::AudioGroupDatabase> ret = std::move(node->m_it->second);
  m_groups.erase(node->m_it);
  node->m_it = {};
  QDir(QFileInfo(m_dir, node->name()).filePath()).removeRecursively();
  m_root->removeChild(node);
  endRemoveRows();
  return ret;
}

ProjectModel::GroupNode* ProjectModel::newSubproject(QString name) {
  if (m_groups.find(name) != m_groups.cend()) {
    g_MainWindow->uiMessenger().critical(tr("Subproject Conflict"),
                                         tr("The subproject %1 is already defined").arg(name));
    return nullptr;
  }

  const QString path = QFileInfo(m_dir, name).filePath();
  auto data = std::make_unique<amuse::AudioGroupDatabase>(QStringToSysString(path));
  auto node = amuse::MakeObj<GroupNode>(std::move(name));
  _buildGroupNodeCollections(*node);
  g_MainWindow->pushUndoCommand(new GroupNodeAddUndoCommand(tr("Add Subproject %1"), std::move(data), node.get()));
  return node.get();
}

template <class NT>
class NodeUndoCommand : public EditorUndoCommand {
protected:
  amuse::ObjToken<ProjectModel::GroupNode> m_parent;
  ProjectModel::NameUndoRegistry m_nameReg;
  void add() {
    g_MainWindow->projectModel()->_addNode(static_cast<NT*>(m_node.get()), m_parent.get(), m_nameReg);
    g_MainWindow->recursiveExpandAndSelectOutline(g_MainWindow->projectModel()->index(m_node.get()));
  }
  void del() { g_MainWindow->projectModel()->_delNode(static_cast<NT*>(m_node.get()), m_parent.get(), m_nameReg); }

public:
  explicit NodeUndoCommand(const QString& text, NT* node, ProjectModel::GroupNode* parent)
  : EditorUndoCommand(node, text.arg(node->text())), m_parent(parent) {}
};

template <class NT>
class NodeAddUndoCommand : public NodeUndoCommand<NT> {
  using base = NodeUndoCommand<NT>;

public:
  explicit NodeAddUndoCommand(const QString& text, NT* node, ProjectModel::GroupNode* parent)
  : NodeUndoCommand<NT>(text, node, parent) {}
  void undo() override { base::del(); }
  void redo() override { base::add(); }
};

template <class NT>
class NodeDelUndoCommand : public NodeUndoCommand<NT> {
  using base = NodeUndoCommand<NT>;

public:
  explicit NodeDelUndoCommand(const QString& text, NT* node)
  : NodeUndoCommand<NT>(text, node, g_MainWindow->projectModel()->getGroupNode(node)) {}
  void undo() override { base::add(); }
  void redo() override { base::del(); }
};

template <class NT, class T>
void ProjectModel::_addGroupNode(NT* node, GroupNode* parent, const NameUndoRegistry& registry, T& container) {
  int idx = parent->hypotheticalIndex(node->name());
  beginInsertRows(index(parent), idx, idx);
  setIdDatabases(parent);
  amuse::GroupId newId = amuse::GroupId::CurNameDB->generateId(amuse::NameDB::Type::Group);
  amuse::GroupId::CurNameDB->registerPair(node->name().toUtf8().data(), newId);
  container[newId] = node->m_index;
  node->m_id = newId;
  parent->insertChild(node);
  _postAddNode(node, registry);
  endInsertRows();
}

template <class NT, class T>
void ProjectModel::_delGroupNode(NT* node, GroupNode* parent, NameUndoRegistry& registry, T& container) {
  int idx = node->row();
  beginRemoveRows(index(parent), idx, idx);
  _preDelNode(node, registry);
  setIdDatabases(parent);
  amuse::GroupId::CurNameDB->remove(node->m_id);
  container.erase(node->m_id);
  node->m_id = {};
  parent->removeChild(node);
  endRemoveRows();
}

void ProjectModel::_addNode(SoundGroupNode* node, GroupNode* parent, const NameUndoRegistry& registry) {
  _addGroupNode(node, parent, registry, parent->getAudioGroup()->getProj().sfxGroups());
}

void ProjectModel::_delNode(SoundGroupNode* node, GroupNode* parent, NameUndoRegistry& registry) {
  _delGroupNode(node, parent, registry, parent->getAudioGroup()->getProj().sfxGroups());
}

ProjectModel::SoundGroupNode* ProjectModel::newSoundGroup(GroupNode* group, QString name) {
  setIdDatabases(group);

  if (amuse::GroupId::CurNameDB->m_stringToId.find(name.toUtf8().data()) !=
      amuse::GroupId::CurNameDB->m_stringToId.cend()) {
    g_MainWindow->uiMessenger().critical(tr("Sound Group Conflict"), tr("The group %1 is already defined").arg(name));
    return nullptr;
  }

  auto node = amuse::MakeObj<SoundGroupNode>(std::move(name), amuse::MakeObj<amuse::SFXGroupIndex>());
  g_MainWindow->pushUndoCommand(new NodeAddUndoCommand<SoundGroupNode>(tr("Add Sound Group %1"), node.get(), group));
  return node.get();
}

void ProjectModel::_addNode(SongGroupNode* node, GroupNode* parent, const NameUndoRegistry& registry) {
  _addGroupNode(node, parent, registry, parent->getAudioGroup()->getProj().songGroups());
}

void ProjectModel::_delNode(SongGroupNode* node, GroupNode* parent, NameUndoRegistry& registry) {
  _delGroupNode(node, parent, registry, parent->getAudioGroup()->getProj().songGroups());
}

ProjectModel::SongGroupNode* ProjectModel::newSongGroup(GroupNode* group, QString name) {
  setIdDatabases(group);

  if (amuse::GroupId::CurNameDB->m_stringToId.find(name.toUtf8().data()) !=
      amuse::GroupId::CurNameDB->m_stringToId.cend()) {
    g_MainWindow->uiMessenger().critical(tr("Song Group Conflict"), tr("The group %1 is already defined").arg(name));
    return nullptr;
  }

  auto node = amuse::MakeObj<SongGroupNode>(std::move(name), amuse::MakeObj<amuse::SongGroupIndex>());
  g_MainWindow->pushUndoCommand(new NodeAddUndoCommand<SongGroupNode>(tr("Add Song Group %1"), node.get(), group));
  return node.get();
}

constexpr ProjectModel::INode::Type GetINodeType(ProjectModel::SoundMacroNode*) {
  return ProjectModel::INode::Type::SoundMacro;
}
constexpr ProjectModel::INode::Type GetINodeType(ProjectModel::ADSRNode*) { return ProjectModel::INode::Type::ADSR; }
constexpr ProjectModel::INode::Type GetINodeType(ProjectModel::CurveNode*) { return ProjectModel::INode::Type::Curve; }
constexpr ProjectModel::INode::Type GetINodeType(ProjectModel::KeymapNode*) {
  return ProjectModel::INode::Type::Keymap;
}
constexpr ProjectModel::INode::Type GetINodeType(ProjectModel::LayersNode*) { return ProjectModel::INode::Type::Layer; }
constexpr ProjectModel::INode::Type GetINodeType(ProjectModel::SampleNode*) {
  return ProjectModel::INode::Type::Sample;
}

constexpr amuse::NameDB::Type GetNameDBType(ProjectModel::SoundMacroNode*) { return amuse::NameDB::Type::SoundMacro; }
constexpr amuse::NameDB::Type GetNameDBType(ProjectModel::ADSRNode*) { return amuse::NameDB::Type::Table; }
constexpr amuse::NameDB::Type GetNameDBType(ProjectModel::CurveNode*) { return amuse::NameDB::Type::Table; }
constexpr amuse::NameDB::Type GetNameDBType(ProjectModel::KeymapNode*) { return amuse::NameDB::Type::Keymap; }
constexpr amuse::NameDB::Type GetNameDBType(ProjectModel::LayersNode*) { return amuse::NameDB::Type::Layer; }
constexpr amuse::NameDB::Type GetNameDBType(ProjectModel::SampleNode*) { return amuse::NameDB::Type::Sample; }

template <class NT>
inline amuse::NameDB* GetNameDB() {
  return nullptr;
}
template <>
inline amuse::NameDB* GetNameDB<ProjectModel::SoundMacroNode>() {
  return amuse::SoundMacroId::CurNameDB;
}
template <>
inline amuse::NameDB* GetNameDB<ProjectModel::ADSRNode>() {
  return amuse::TableId::CurNameDB;
}
template <>
inline amuse::NameDB* GetNameDB<ProjectModel::CurveNode>() {
  return amuse::TableId::CurNameDB;
}
template <>
inline amuse::NameDB* GetNameDB<ProjectModel::KeymapNode>() {
  return amuse::KeymapId::CurNameDB;
}
template <>
inline amuse::NameDB* GetNameDB<ProjectModel::LayersNode>() {
  return amuse::LayersId::CurNameDB;
}
template <>
inline amuse::NameDB* GetNameDB<ProjectModel::SampleNode>() {
  return amuse::SampleId::CurNameDB;
}

template <class NT, class T>
void ProjectModel::_addPoolNode(NT* node, GroupNode* parent, const NameUndoRegistry& registry, T& container) {
  setIdDatabases(parent);
  CollectionNode* coll = parent->getCollectionOfType(GetINodeType(node));
  int insertIdx = coll->hypotheticalIndex(node->name());
  beginInsertRows(index(coll), insertIdx, insertIdx);
  auto newId = GetNameDB<NT>()->generateId(GetNameDBType(node));
  GetNameDB<NT>()->registerPair(node->name().toUtf8().data(), newId);
  container[newId] = node->m_obj;
  node->m_id = newId;
  coll->insertChild(node);
  _postAddNode(node, registry);
  endInsertRows();
}

template <class NT, class T>
void ProjectModel::_delPoolNode(NT* node, GroupNode* parent, NameUndoRegistry& registry, T& container) {
  int idx = node->row();
  setIdDatabases(parent);
  CollectionNode* coll = parent->getCollectionOfType(GetINodeType(node));
  beginRemoveRows(index(coll), idx, idx);
  _preDelNode(node, registry);
  GetNameDB<NT>()->remove(node->m_id);
  container.erase(node->m_id);
  node->m_id = {};
  coll->removeChild(node);
  endRemoveRows();
}

void ProjectModel::_addNode(SoundMacroNode* node, GroupNode* parent, const NameUndoRegistry& registry) {
  _addPoolNode(node, parent, registry, parent->getAudioGroup()->getPool().soundMacros());
}

void ProjectModel::_delNode(SoundMacroNode* node, GroupNode* parent, NameUndoRegistry& registry) {
  _delPoolNode(node, parent, registry, parent->getAudioGroup()->getPool().soundMacros());
}

ProjectModel::SoundMacroNode* ProjectModel::newSoundMacro(GroupNode* group, QString name,
                                                          const SoundMacroTemplateEntry* templ) {
  setIdDatabases(group);

  if (amuse::SoundMacroId::CurNameDB->m_stringToId.find(name.toUtf8().data()) !=
      amuse::SoundMacroId::CurNameDB->m_stringToId.cend()) {
    g_MainWindow->uiMessenger().critical(tr("Sound Macro Conflict"), tr("The macro %1 is already defined").arg(name));
    return nullptr;
  }

  auto dataNode = amuse::MakeObj<amuse::SoundMacro>();
  if (templ) {
    athena::io::MemoryReader r(templ->m_data, templ->m_length);
    dataNode->readCmds<athena::utility::NotSystemEndian>(r, templ->m_length);
  }

  auto node = amuse::MakeObj<SoundMacroNode>(std::move(name), std::move(dataNode));
  g_MainWindow->pushUndoCommand(new NodeAddUndoCommand<SoundMacroNode>(tr("Add Sound Macro %1"), node.get(), group));
  return node.get();
}

void ProjectModel::_addNode(ADSRNode* node, GroupNode* parent, const NameUndoRegistry& registry) {
  _addPoolNode(node, parent, registry, parent->getAudioGroup()->getPool().tables());
}

void ProjectModel::_delNode(ADSRNode* node, GroupNode* parent, NameUndoRegistry& registry) {
  _delPoolNode(node, parent, registry, parent->getAudioGroup()->getPool().tables());
}

ProjectModel::ADSRNode* ProjectModel::newADSR(GroupNode* group, QString name) {
  setIdDatabases(group);

  if (amuse::TableId::CurNameDB->m_stringToId.find(name.toUtf8().data()) !=
      amuse::TableId::CurNameDB->m_stringToId.cend()) {
    g_MainWindow->uiMessenger().critical(tr("ADSR Conflict"), tr("The ADSR %1 is already defined").arg(name));
    return nullptr;
  }

  auto dataNode = amuse::MakeObj<std::unique_ptr<amuse::ITable>>();
  *dataNode = std::make_unique<amuse::ADSR>();
  auto node = amuse::MakeObj<ADSRNode>(std::move(name), std::move(dataNode));
  g_MainWindow->pushUndoCommand(new NodeAddUndoCommand<ADSRNode>(tr("Add ADSR %1"), node.get(), group));
  return node.get();
}

void ProjectModel::_addNode(CurveNode* node, GroupNode* parent, const NameUndoRegistry& registry) {
  _addPoolNode(node, parent, registry, parent->getAudioGroup()->getPool().tables());
}

void ProjectModel::_delNode(CurveNode* node, GroupNode* parent, NameUndoRegistry& registry) {
  _delPoolNode(node, parent, registry, parent->getAudioGroup()->getPool().tables());
}

ProjectModel::CurveNode* ProjectModel::newCurve(GroupNode* group, QString name) {
  setIdDatabases(group);

  if (amuse::TableId::CurNameDB->m_stringToId.find(name.toUtf8().data()) !=
      amuse::TableId::CurNameDB->m_stringToId.cend()) {
    g_MainWindow->uiMessenger().critical(tr("Curve Conflict"), tr("The Curve %1 is already defined").arg(name));
    return nullptr;
  }

  auto dataNode = amuse::MakeObj<std::unique_ptr<amuse::ITable>>();
  *dataNode = std::make_unique<amuse::Curve>();
  auto node = amuse::MakeObj<CurveNode>(std::move(name), std::move(dataNode));
  g_MainWindow->pushUndoCommand(new NodeAddUndoCommand<CurveNode>(tr("Add Curve %1"), node.get(), group));
  return node.get();
}

void ProjectModel::_addNode(KeymapNode* node, GroupNode* parent, const NameUndoRegistry& registry) {
  _addPoolNode(node, parent, registry, parent->getAudioGroup()->getPool().keymaps());
}

void ProjectModel::_delNode(KeymapNode* node, GroupNode* parent, NameUndoRegistry& registry) {
  _delPoolNode(node, parent, registry, parent->getAudioGroup()->getPool().keymaps());
}

ProjectModel::KeymapNode* ProjectModel::newKeymap(GroupNode* group, QString name) {
  setIdDatabases(group);

  if (amuse::KeymapId::CurNameDB->m_stringToId.find(name.toUtf8().data()) !=
      amuse::KeymapId::CurNameDB->m_stringToId.cend()) {
    g_MainWindow->uiMessenger().critical(tr("Keymap Conflict"), tr("The Keymap %1 is already defined").arg(name));
    return nullptr;
  }

  auto dataNode = amuse::MakeObj<std::array<amuse::Keymap, 128>>();
  auto node = amuse::MakeObj<KeymapNode>(std::move(name), std::move(dataNode));
  g_MainWindow->pushUndoCommand(new NodeAddUndoCommand<KeymapNode>(tr("Add Keymap %1"), node.get(), group));
  return node.get();
}

void ProjectModel::_addNode(LayersNode* node, GroupNode* parent, const NameUndoRegistry& registry) {
  _addPoolNode(node, parent, registry, parent->getAudioGroup()->getPool().layers());
}

void ProjectModel::_delNode(LayersNode* node, GroupNode* parent, NameUndoRegistry& registry) {
  _delPoolNode(node, parent, registry, parent->getAudioGroup()->getPool().layers());
}

ProjectModel::LayersNode* ProjectModel::newLayers(GroupNode* group, QString name) {
  setIdDatabases(group);

  if (amuse::LayersId::CurNameDB->m_stringToId.find(name.toUtf8().data()) !=
      amuse::LayersId::CurNameDB->m_stringToId.cend()) {
    g_MainWindow->uiMessenger().critical(tr("Layers Conflict"), tr("Layers %1 is already defined").arg(name));
    return nullptr;
  }

  auto dataNode = amuse::MakeObj<std::vector<amuse::LayerMapping>>();
  auto node = amuse::MakeObj<LayersNode>(std::move(name), std::move(dataNode));
  g_MainWindow->pushUndoCommand(new NodeAddUndoCommand<LayersNode>(tr("Add Layers %1"), node.get(), group));

  return node.get();
}

QString ProjectModel::MakeDedupedSubprojectName(const QString& origName) {
  QString dupeName = origName + tr("-copy");
  QString useName = dupeName;
  int dupeIdx = 1;
  while (QFileInfo(m_dir.filePath(useName)).exists())
    useName = dupeName + QString::number(dupeIdx++);
  return useName;
}

QString ProjectModel::MakeDedupedName(const QString& origName, amuse::NameDB* db) {
  QString dupeName = origName + tr("-copy");
  QString useName = dupeName;
  int dupeIdx = 1;
  while (db->m_stringToId.find(useName.toUtf8().data()) != db->m_stringToId.cend())
    useName = dupeName + QString::number(dupeIdx++);
  return useName;
}

static amuse::ObjToken<std::unique_ptr<amuse::ITable>> DuplicateTable(amuse::ITable* table) {
  switch (table->Isa()) {
  case amuse::ITable::Type::ADSR:
    return amuse::MakeObj<std::unique_ptr<amuse::ITable>>(
        std::make_unique<amuse::ADSR>(static_cast<amuse::ADSR&>(*table)));
  case amuse::ITable::Type::ADSRDLS:
    return amuse::MakeObj<std::unique_ptr<amuse::ITable>>(
        std::make_unique<amuse::ADSRDLS>(static_cast<amuse::ADSRDLS&>(*table)));
  case amuse::ITable::Type::Curve:
    return amuse::MakeObj<std::unique_ptr<amuse::ITable>>(
        std::make_unique<amuse::Curve>(static_cast<amuse::Curve&>(*table)));
  default:
    return {};
  }
}

QStringList ProjectModel::mimeTypes() const {
  return {QStringLiteral("application/x-amuse-subprojectpath"), QStringLiteral("application/x-amuse-songgroup"),
          QStringLiteral("application/x-amuse-soundgroup"),     QStringLiteral("application/x-amuse-soundmacro"),
          QStringLiteral("application/x-amuse-adsr"),           QStringLiteral("application/x-amuse-curve"),
          QStringLiteral("application/x-amuse-keymap"),         QStringLiteral("application/x-amuse-layers"),
          QStringLiteral("application/x-amuse-samplepath")};
}

static void WriteMimeYAML(athena::io::YAMLDocWriter& w, ProjectModel::SongGroupNode* n) { n->m_index->toYAML(w); }
static void WriteMimeYAML(athena::io::YAMLDocWriter& w, ProjectModel::SoundGroupNode* n) { n->m_index->toYAML(w); }
static void WriteMimeYAML(athena::io::YAMLDocWriter& w, ProjectModel::SoundMacroNode* n) {
  if (auto __r2 = w.enterSubVector("cmds"))
    n->m_obj->toYAML(w);
}
static void WriteMimeYAML(athena::io::YAMLDocWriter& w, ProjectModel::ADSRNode* n) { n->m_obj->get()->write(w); }
static void WriteMimeYAML(athena::io::YAMLDocWriter& w, ProjectModel::CurveNode* n) { n->m_obj->get()->write(w); }
static void WriteMimeYAML(athena::io::YAMLDocWriter& w, ProjectModel::KeymapNode* n) {
  if (auto __v = w.enterSubVector("entries")) {
    for (const auto& km : *n->m_obj) {
      if (auto __r2 = w.enterSubRecord()) {
        w.setStyle(athena::io::YAMLNodeStyle::Flow);
        km.write(w);
      }
    }
  }
}
static void WriteMimeYAML(athena::io::YAMLDocWriter& w, ProjectModel::LayersNode* n) {
  if (auto __v = w.enterSubVector("entries")) {
    for (const auto& lm : *n->m_obj) {
      if (auto __r2 = w.enterSubRecord()) {
        w.setStyle(athena::io::YAMLNodeStyle::Flow);
        lm.write(w);
      }
    }
  }
}

template <class NT>
EditorUndoCommand* ProjectModel::readMimeYAML(athena::io::YAMLDocReader& r, const QString& name, GroupNode* gn) {
  return nullptr;
}
template <>
EditorUndoCommand* ProjectModel::readMimeYAML<ProjectModel::SongGroupNode>(athena::io::YAMLDocReader& r,
                                                                           const QString& name, GroupNode* gn) {
  auto dataNode = amuse::MakeObj<amuse::SongGroupIndex>();
  dataNode->fromYAML(r);
  auto node = amuse::MakeObj<SongGroupNode>(name, dataNode);
  return new NodeAddUndoCommand<SongGroupNode>(ProjectModel::tr("Add Song Group %1"), node.get(), gn);
}
template <>
EditorUndoCommand* ProjectModel::readMimeYAML<ProjectModel::SoundGroupNode>(athena::io::YAMLDocReader& r,
                                                                            const QString& name, GroupNode* gn) {
  auto dataNode = amuse::MakeObj<amuse::SFXGroupIndex>();
  dataNode->fromYAML(r);
  auto node = amuse::MakeObj<SoundGroupNode>(name, dataNode);
  return new NodeAddUndoCommand<SoundGroupNode>(ProjectModel::tr("Add Sound Group %1"), node.get(), gn);
}
template <>
EditorUndoCommand* ProjectModel::readMimeYAML<ProjectModel::SoundMacroNode>(athena::io::YAMLDocReader& r,
                                                                            const QString& name, GroupNode* gn) {
  auto dataNode = amuse::MakeObj<amuse::SoundMacro>();
  size_t cmdCount;
  if (auto __v = r.enterSubVector("cmds", cmdCount))
    dataNode->fromYAML(r, cmdCount);
  auto node = amuse::MakeObj<SoundMacroNode>(name, dataNode);
  return new NodeAddUndoCommand<SoundMacroNode>(ProjectModel::tr("Add SoundMacro %1"), node.get(), gn);
}
template <>
EditorUndoCommand* ProjectModel::readMimeYAML<ProjectModel::ADSRNode>(athena::io::YAMLDocReader& r, const QString& name,
                                                                      GroupNode* gn) {
  amuse::ObjToken<std::unique_ptr<amuse::ITable>> dataNode;
  if (auto __vta = r.enterSubRecord("velToAttack")) {
    __vta.leave();
    dataNode = amuse::MakeObj<std::unique_ptr<amuse::ITable>>(std::make_unique<amuse::ADSRDLS>());
    static_cast<amuse::ADSRDLS&>(**dataNode).read(r);
  } else {
    dataNode = amuse::MakeObj<std::unique_ptr<amuse::ITable>>(std::make_unique<amuse::ADSR>());
    static_cast<amuse::ADSR&>(**dataNode).read(r);
  }
  auto node = amuse::MakeObj<ADSRNode>(name, dataNode);
  return new NodeAddUndoCommand<ADSRNode>(ProjectModel::tr("Add ADSR %1"), node.get(), gn);
}
template <>
EditorUndoCommand* ProjectModel::readMimeYAML<ProjectModel::CurveNode>(athena::io::YAMLDocReader& r,
                                                                       const QString& name, GroupNode* gn) {
  auto dataNode = amuse::MakeObj<std::unique_ptr<amuse::ITable>>(std::make_unique<amuse::Curve>());
  static_cast<amuse::Curve&>(**dataNode).read(r);
  auto node = amuse::MakeObj<CurveNode>(name, dataNode);
  return new NodeAddUndoCommand<CurveNode>(ProjectModel::tr("Add Curve %1"), node.get(), gn);
}
template <>
EditorUndoCommand* ProjectModel::readMimeYAML<ProjectModel::KeymapNode>(athena::io::YAMLDocReader& r,
                                                                        const QString& name, GroupNode* gn) {
  auto dataNode = amuse::MakeObj<std::array<amuse::Keymap, 128>>();
  size_t entryCount;
  if (auto __v = r.enterSubVector("entries", entryCount)) {
    for (size_t i = 0; i < entryCount; ++i) {
      if (auto __r2 = r.enterSubRecord()) {
        (*dataNode)[i].read(r);
      }
    }
  }
  auto node = amuse::MakeObj<KeymapNode>(name, dataNode);
  return new NodeAddUndoCommand<KeymapNode>(ProjectModel::tr("Add Keymap %1"), node.get(), gn);
}
template <>
EditorUndoCommand* ProjectModel::readMimeYAML<ProjectModel::LayersNode>(athena::io::YAMLDocReader& r,
                                                                        const QString& name, GroupNode* gn) {
  auto dataNode = amuse::MakeObj<std::vector<amuse::LayerMapping>>();
  size_t entryCount;
  if (auto __v = r.enterSubVector("entries", entryCount)) {
    dataNode->resize(entryCount);
    for (size_t i = 0; i < entryCount; ++i) {
      if (auto __r2 = r.enterSubRecord()) {
        (*dataNode)[i].read(r);
      }
    }
  }
  auto node = amuse::MakeObj<LayersNode>(name, dataNode);
  return new NodeAddUndoCommand<LayersNode>(ProjectModel::tr("Add Layers %1"), node.get(), gn);
}

template <class NT>
void ProjectModel::loadMimeData(const QMimeData* data, const QString& mimeType, GroupNode* gn) {
  auto d = data->data(mimeType);
  athena::io::MemoryReader mr(d.data(), atUint64(d.length()));
  athena::io::YAMLDocReader r;
  if (r.parse(&mr)) {
    QString newName = MakeDedupedName(QString::fromStdString(r.readString("name")), GetNameDB<NT>());
    g_MainWindow->pushUndoCommand(readMimeYAML<NT>(r, newName, gn));
  }
}

template <class NT>
QMimeData* MakeMimeData(NT* n, const QString& mimeType) {
  QMimeData* data = new QMimeData;
  athena::io::VectorWriter vw;
  athena::io::YAMLDocWriter w;
  w.writeString("name", n->name().toStdString());
  WriteMimeYAML(w, n);
  w.finish(&vw);
  data->setData(mimeType, QByteArray((char*)vw.data().data(), int(vw.data().size())));
  return data;
}

QMimeData* ProjectModel::mimeData(const QModelIndexList& indexes) const {
  QModelIndex index = indexes.first();
  if (!index.isValid())
    return nullptr;
  assert(index.model() == this && "Not ProjectModel");
  INode* n = node(index);
  switch (n->type()) {
  case INode::Type::Group: {
    QDir dir(QFileInfo(m_dir, n->name()).filePath());
    QMimeData* data = new QMimeData;
    data->setData(QStringLiteral("application/x-amuse-subprojectpath"), dir.path().toUtf8());
    return data;
  }
  case INode::Type::SoundGroup:
    return MakeMimeData(static_cast<SoundGroupNode*>(n), QStringLiteral("application/x-amuse-soundgroup"));
  case INode::Type::SongGroup:
    return MakeMimeData(static_cast<SongGroupNode*>(n), QStringLiteral("application/x-amuse-songgroup"));
  case INode::Type::SoundMacro:
    return MakeMimeData(static_cast<SoundMacroNode*>(n), QStringLiteral("application/x-amuse-soundmacro"));
  case INode::Type::ADSR:
    return MakeMimeData(static_cast<ADSRNode*>(n), QStringLiteral("application/x-amuse-adsr"));
  case INode::Type::Curve:
    return MakeMimeData(static_cast<CurveNode*>(n), QStringLiteral("application/x-amuse-curve"));
  case INode::Type::Keymap:
    return MakeMimeData(static_cast<KeymapNode*>(n), QStringLiteral("application/x-amuse-keymap"));
  case INode::Type::Layer:
    return MakeMimeData(static_cast<LayersNode*>(n), QStringLiteral("application/x-amuse-layers"));
  case INode::Type::Sample: {
    GroupNode* gn = getGroupNode(n);
    QString path = SysStringToQString(gn->getAudioGroup()->getSampleBasePath(static_cast<SampleNode*>(n)->id()));
    QMimeData* data = new QMimeData;
    data->setData(QStringLiteral("application/x-amuse-samplepath"), path.toUtf8());
    return data;
  }
  default:
    return nullptr;
  }
}

bool ProjectModel::dropMimeData(const QMimeData* data, Qt::DropAction action, int row, int column,
                                const QModelIndex& parent) {
  if (data->hasFormat(QStringLiteral("application/x-amuse-subprojectpath"))) {
    const auto path = data->data(QStringLiteral("application/x-amuse-subprojectpath"));
    const QDir oldDir(QString::fromUtf8(path));
    const QString newName = MakeDedupedSubprojectName(oldDir.dirName());

    m_dir.mkdir(newName);

    const QDir newDir(QFileInfo(m_dir, newName).filePath());
    const auto entryList =
        oldDir.entryList({QStringLiteral("*.wav"), QStringLiteral("*.dsp"), QStringLiteral("*.vadpcm"),
                          QStringLiteral("!pool.yaml"), QStringLiteral("!project.yaml")},
                         QDir::Files);
    for (const auto& ent : entryList) {
      QFile::copy(QFileInfo(oldDir, ent).filePath(), QFileInfo(newDir, ent).filePath());
    }

    auto dataNode = std::make_unique<amuse::AudioGroupDatabase>(QStringToSysString(newDir.path()));
    const auto node = amuse::MakeObj<GroupNode>(newName);
    _buildGroupNode(*node, *dataNode);
    g_MainWindow->pushUndoCommand(
        new GroupNodeAddUndoCommand(tr("Add Subproject %1"), std::move(dataNode), node.get()));
    return true;
  }

  GroupNode* gn;
  if (parent.isValid())
    gn = getGroupNode(node(parent));
  else
    gn = static_cast<GroupNode*>(m_root->child(row));
  setIdDatabases(gn);

  if (data->hasFormat(QStringLiteral("application/x-amuse-soundgroup")))
    loadMimeData<SoundGroupNode>(data, QStringLiteral("application/x-amuse-soundgroup"), gn);
  else if (data->hasFormat(QStringLiteral("application/x-amuse-songgroup")))
    loadMimeData<SongGroupNode>(data, QStringLiteral("application/x-amuse-songgroup"), gn);
  else if (data->hasFormat(QStringLiteral("application/x-amuse-soundmacro")))
    loadMimeData<SoundMacroNode>(data, QStringLiteral("application/x-amuse-soundmacro"), gn);
  else if (data->hasFormat(QStringLiteral("application/x-amuse-adsr")))
    loadMimeData<ADSRNode>(data, QStringLiteral("application/x-amuse-adsr"), gn);
  else if (data->hasFormat(QStringLiteral("application/x-amuse-curve")))
    loadMimeData<CurveNode>(data, QStringLiteral("application/x-amuse-curve"), gn);
  else if (data->hasFormat(QStringLiteral("application/x-amuse-keymap")))
    loadMimeData<KeymapNode>(data, QStringLiteral("application/x-amuse-keymap"), gn);
  else if (data->hasFormat(QStringLiteral("application/x-amuse-layers")))
    loadMimeData<LayersNode>(data, QStringLiteral("application/x-amuse-layers"), gn);
  else if (data->hasFormat(QStringLiteral("application/x-amuse-samplepath"))) {
    const auto path = data->data(QStringLiteral("application/x-amuse-samplepath"));
    const QString newName =
        MakeDedupedName(QFileInfo(QString::fromUtf8(path)).completeBaseName(), amuse::SampleId::CurNameDB);
    const QString newBasePath = QFileInfo(QFileInfo(m_dir, gn->name()).filePath(), newName).filePath();
    const amuse::SystemString newBasePathStr = QStringToSysString(newBasePath);

    gn->getAudioGroup()->copySampleInto(QStringToSysString(QString::fromUtf8(path)), newBasePathStr);
    auto dataNode = amuse::MakeObj<amuse::SampleEntry>();
    dataNode->loadLooseData(newBasePathStr);
    const auto node = amuse::MakeObj<SampleNode>(newName, dataNode);
    NameUndoRegistry dummy;
    _addPoolNode(node.get(), gn, dummy, gn->getAudioGroup()->getSdir().sampleEntries());
  } else
    return false;

  return true;
}

void ProjectModel::cut(const QModelIndex& index) {
  if (!index.isValid())
    return;
  assert(index.model() == this && "Not ProjectModel");
  QMimeData* data = mimeData({index});
  if (data) {
    QGuiApplication::clipboard()->setMimeData(data);
    INode* n = node(index);
    EditorUndoCommand* cmd = nullptr;
    switch (n->type()) {
    case INode::Type::SongGroup:
      cmd = new NodeDelUndoCommand<SongGroupNode>(tr("Cut SongGroup %1"), static_cast<SongGroupNode*>(n));
      break;
    case INode::Type::SoundGroup:
      cmd = new NodeDelUndoCommand<SoundGroupNode>(tr("Cut SFXGroup %1"), static_cast<SoundGroupNode*>(n));
      break;
    case INode::Type::SoundMacro:
      cmd = new NodeDelUndoCommand<SoundMacroNode>(tr("Cut SoundMacro %1"), static_cast<SoundMacroNode*>(n));
      break;
    case INode::Type::ADSR:
      cmd = new NodeDelUndoCommand<ADSRNode>(tr("Cut ADSR %1"), static_cast<ADSRNode*>(n));
      break;
    case INode::Type::Curve:
      cmd = new NodeDelUndoCommand<CurveNode>(tr("Cut Curve %1"), static_cast<CurveNode*>(n));
      break;
    case INode::Type::Keymap:
      cmd = new NodeDelUndoCommand<KeymapNode>(tr("Cut Keymap %1"), static_cast<KeymapNode*>(n));
      break;
    case INode::Type::Layer:
      cmd = new NodeDelUndoCommand<LayersNode>(tr("Cut Layers %1"), static_cast<LayersNode*>(n));
      break;
    default:
      break;
    }
    if (cmd)
      g_MainWindow->pushUndoCommand(cmd);
  }
}

void ProjectModel::copy(const QModelIndex& index) {
  if (!index.isValid())
    return;
  assert(index.model() == this && "Not ProjectModel");
  QMimeData* data = mimeData({index});
  if (data)
    QGuiApplication::clipboard()->setMimeData(data);
}

void ProjectModel::paste(const QModelIndex& index) {
  if (!index.isValid())
    return;
  assert(index.model() == this && "Not ProjectModel");
  dropMimeData(QGuiApplication::clipboard()->mimeData(), Qt::DropAction::CopyAction, index.row(), index.column(),
               index.parent());
}

QModelIndex ProjectModel::duplicate(const QModelIndex& index) {
  QModelIndex ret;
  if (!index.isValid())
    return ret;
  assert(index.model() == this && "Not ProjectModel");
  INode* n = node(index);
  setIdDatabases(n);
  EditorUndoCommand* cmd = nullptr;
  amuse::NameDB* nameDb = n->getNameDb();
  QString newName;
  if (nameDb)
    newName = MakeDedupedName(n->name(), nameDb);
  GroupNode* gn = getGroupNode(n);
  switch (n->type()) {
  case INode::Type::Group: {
    auto* const cn = static_cast<GroupNode*>(n);
    newName = MakeDedupedSubprojectName(n->name());

    m_dir.mkdir(newName);

    const QDir oldDir(QFileInfo(m_dir, n->name()).filePath());
    const QDir newDir(QFileInfo(m_dir, newName).filePath());
    const auto entryList = oldDir.entryList(
        {QStringLiteral("*.wav"), QStringLiteral("*.dsp"), QStringLiteral("*.vadpcm"), QStringLiteral("!pool.yaml")},
        QDir::Files);

    for (const auto& ent : entryList) {
      QFile::copy(QFileInfo(oldDir, ent).filePath(), QFileInfo(newDir, ent).filePath());
    }

    auto data = std::make_unique<amuse::AudioGroupDatabase>(*cn->getAudioGroup(), QStringToSysString(newDir.path()));
    auto node = amuse::MakeObj<GroupNode>(newName);
    _buildGroupNode(*node, *data);
    cmd = new GroupNodeAddUndoCommand(tr("Add Subproject %1"), std::move(data), node.get());
    ret = ProjectModel::index(node.get());
    break;
  }
  case INode::Type::SoundGroup: {
    SoundGroupNode* cn = static_cast<SoundGroupNode*>(n);
    auto node = amuse::MakeObj<SoundGroupNode>(newName, amuse::MakeObj<amuse::SFXGroupIndex>(*cn->m_index));
    cmd = new NodeAddUndoCommand<SoundGroupNode>(tr("Add Sound Group %1"), node.get(), gn);
    ret = ProjectModel::index(node.get());
    break;
  }
  case INode::Type::SongGroup: {
    SongGroupNode* cn = static_cast<SongGroupNode*>(n);
    auto node = amuse::MakeObj<SongGroupNode>(newName, amuse::MakeObj<amuse::SongGroupIndex>(*cn->m_index));
    cmd = new NodeAddUndoCommand<SongGroupNode>(tr("Add Song Group %1"), node.get(), gn);
    ret = ProjectModel::index(node.get());
    break;
  }
  case INode::Type::SoundMacro: {
    SoundMacroNode* cn = static_cast<SoundMacroNode*>(n);
    auto dataNode = amuse::MakeObj<amuse::SoundMacro>();
    dataNode->buildFromPrototype(*cn->m_obj);
    auto node = amuse::MakeObj<SoundMacroNode>(newName, dataNode);
    cmd = new NodeAddUndoCommand<SoundMacroNode>(tr("Add Sound Macro %1"), node.get(), gn);
    ret = ProjectModel::index(node.get());
    break;
  }
  case INode::Type::ADSR: {
    ADSRNode* cn = static_cast<ADSRNode*>(n);
    auto node = amuse::MakeObj<ADSRNode>(newName, DuplicateTable(cn->m_obj->get()));
    cmd = new NodeAddUndoCommand<ADSRNode>(tr("Add ADSR %1"), node.get(), gn);
    ret = ProjectModel::index(node.get());
    break;
  }
  case INode::Type::Curve: {
    CurveNode* cn = static_cast<CurveNode*>(n);
    auto node = amuse::MakeObj<CurveNode>(newName, DuplicateTable(cn->m_obj->get()));
    cmd = new NodeAddUndoCommand<CurveNode>(tr("Add Curve %1"), node.get(), gn);
    ret = ProjectModel::index(node.get());
    break;
  }
  case INode::Type::Keymap: {
    KeymapNode* cn = static_cast<KeymapNode*>(n);
    auto node = amuse::MakeObj<KeymapNode>(newName, amuse::MakeObj<std::array<amuse::Keymap, 128>>(*cn->m_obj));
    cmd = new NodeAddUndoCommand<KeymapNode>(tr("Add Keymap %1"), node.get(), gn);
    ret = ProjectModel::index(node.get());
    break;
  }
  case INode::Type::Layer: {
    LayersNode* cn = static_cast<LayersNode*>(n);
    auto node = amuse::MakeObj<LayersNode>(newName, amuse::MakeObj<std::vector<amuse::LayerMapping>>(*cn->m_obj));
    cmd = new NodeAddUndoCommand<LayersNode>(tr("Add Layers %1"), node.get(), gn);
    ret = ProjectModel::index(node.get());
    break;
  }
  default:
    break;
  }
  if (cmd)
    g_MainWindow->pushUndoCommand(cmd);
  return ret;
}

void ProjectModel::del(const QModelIndex& index) {
  if (!index.isValid())
    return;
  assert(index.model() == this && "Not ProjectModel");
  INode* n = node(index);
  EditorUndoCommand* cmd = nullptr;
  switch (n->type()) {
  case INode::Type::Group: {
    int result =
        g_MainWindow->uiMessenger().warning(tr("Delete Subproject"),
                                            tr("<p>The subproject %1 will be permanently deleted from the project. "
                                               "Sample files will be permanently removed from the file system.</p>"
                                               "<p><strong>This action cannot be undone!</strong></p><p>Continue?</p>")
                                                .arg(n->name()),
                                            QMessageBox::Yes | QMessageBox::No, QMessageBox::No);
    if (result == QMessageBox::No)
      return;
    NameUndoRegistry nameReg;
    g_MainWindow->projectModel()->_delNode(static_cast<GroupNode*>(n), nameReg);
    g_MainWindow->m_undoStack->clear();
    g_MainWindow->m_undoStack->resetClean();
    break;
  }
  case INode::Type::SongGroup:
    cmd = new NodeDelUndoCommand<SongGroupNode>(tr("Delete SongGroup %1"), static_cast<SongGroupNode*>(n));
    break;
  case INode::Type::SoundGroup:
    cmd = new NodeDelUndoCommand<SoundGroupNode>(tr("Delete SFXGroup %1"), static_cast<SoundGroupNode*>(n));
    break;
  case INode::Type::SoundMacro:
    cmd = new NodeDelUndoCommand<SoundMacroNode>(tr("Delete SoundMacro %1"), static_cast<SoundMacroNode*>(n));
    break;
  case INode::Type::ADSR:
    cmd = new NodeDelUndoCommand<ADSRNode>(tr("Delete ADSR %1"), static_cast<ADSRNode*>(n));
    break;
  case INode::Type::Curve:
    cmd = new NodeDelUndoCommand<CurveNode>(tr("Delete Curve %1"), static_cast<CurveNode*>(n));
    break;
  case INode::Type::Keymap:
    cmd = new NodeDelUndoCommand<KeymapNode>(tr("Delete Keymap %1"), static_cast<KeymapNode*>(n));
    break;
  case INode::Type::Layer:
    cmd = new NodeDelUndoCommand<LayersNode>(tr("Delete Layers %1"), static_cast<LayersNode*>(n));
    break;
  case INode::Type::Sample: {
    int result =
        g_MainWindow->uiMessenger().warning(tr("Delete Sample"),
                                            tr("<p>The sample %1 will be permanently deleted from the file system. "
                                               "<p><strong>This action cannot be undone!</strong></p><p>Continue?</p>")
                                                .arg(n->name()),
                                            QMessageBox::Yes | QMessageBox::No, QMessageBox::No);
    if (result == QMessageBox::No)
      return;
    NameUndoRegistry nameReg;
    GroupNode* gn = getGroupNode(n);
    gn->getAudioGroup()->deleteSample(static_cast<SampleNode*>(n)->id());
    _delPoolNode(static_cast<SampleNode*>(n), gn, nameReg, gn->getAudioGroup()->getSdir().sampleEntries());
    g_MainWindow->m_undoStack->clear();
    g_MainWindow->m_undoStack->resetClean();
    break;
  }
  default:
    break;
  }
  if (cmd)
    g_MainWindow->pushUndoCommand(cmd);
}

ProjectModel::GroupNode* ProjectModel::getGroupOfSfx(amuse::SFXId id) const {
  ProjectModel::GroupNode* ret = nullptr;
  m_root->oneLevelTraverse([id, &ret](INode* n) {
    GroupNode* gn = static_cast<GroupNode*>(n);
    amuse::AudioGroupDatabase* db = gn->getAudioGroup();
    for (const auto& p : db->getProj().sfxGroups()) {
      if (p.second->m_sfxEntries.find(id) != p.second->m_sfxEntries.cend()) {
        ret = gn;
        return false;
      }
    }
    return true;
  });
  return ret;
}

QString ProjectModel::getMIDIPathOfSong(amuse::SongId id) const {
  auto search = m_midiFiles.find(id);
  if (search == m_midiFiles.cend())
    return {};
  return search->second.m_path;
}

void ProjectModel::setMIDIPathOfSong(amuse::SongId id, QString path) { m_midiFiles[id].m_path = std::move(path); }

std::pair<amuse::SongId, std::string> ProjectModel::bootstrapSongId() {
  m_projectDatabase.setIdDatabases();
  std::pair<amuse::SongId, std::string> ret;
  ret.first = amuse::SongId::CurNameDB->generateId(amuse::NameDB::Type::Song);
  ret.second = amuse::SongId::CurNameDB->generateName(ret.first, amuse::NameDB::Type::Song);
  amuse::SongId::CurNameDB->registerPair(ret.second, ret.first);
  m_midiFiles[ret.first] = {{}, 0};
  return ret;
}

void ProjectModel::allocateSongId(amuse::SongId id, std::string_view name) {
  m_projectDatabase.setIdDatabases();
  amuse::SongId::CurNameDB->registerPair(name, id);
  Song& song = m_midiFiles[id];
  ++song.m_refCount;
}

void ProjectModel::deallocateSongId(amuse::SongId oldId) {
  Song& oldSong = m_midiFiles[oldId];
  --oldSong.m_refCount;
  if (oldSong.m_refCount <= 0) {
    oldSong.m_refCount = 0;
    amuse::SongId::CurNameDB->remove(oldId);
    m_midiFiles.erase(oldId);
  }
}

amuse::SongId ProjectModel::exchangeSongId(amuse::SongId oldId, std::string_view newName) {
  m_projectDatabase.setIdDatabases();
  amuse::SongId newId;
  // TODO: Heterogeneous lookup when C++20 available
  auto search = amuse::SongId::CurNameDB->m_stringToId.find(newName.data());
  if (search == amuse::SongId::CurNameDB->m_stringToId.cend()) {
    newId = amuse::SongId::CurNameDB->generateId(amuse::NameDB::Type::Song);
    amuse::SongId::CurNameDB->registerPair(newName, newId);
  } else
    newId = search->second;
  if (oldId == newId)
    return newId;
  Song& oldSong = m_midiFiles[oldId];
  Song& newSong = m_midiFiles[newId];
  ++newSong.m_refCount;
  if (newSong.m_path.isEmpty())
    newSong.m_path = oldSong.m_path;
  --oldSong.m_refCount;
  if (oldSong.m_refCount <= 0) {
    oldSong.m_refCount = 0;
    amuse::SongId::CurNameDB->remove(oldId);
    m_midiFiles.erase(oldId);
  }
  return newId;
}

void ProjectModel::setIdDatabases(INode* context) const { m_projectDatabase.setIdDatabases(); }