#include "amuse/AudioGroupProject.hpp"

#include "amuse/AudioGroupPool.hpp"
#include "amuse/AudioGroupSampleDirectory.hpp"
#include "amuse/AudioGroupData.hpp"

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

namespace amuse {

static bool AtEnd64(athena::io::IStreamReader& r) {
  uint64_t v = r.readUint64Big();
  r.seek(-8, athena::SeekOrigin::Current);
  return v == 0xffffffffffffffff;
}

static bool AtEnd32(athena::io::IStreamReader& r) {
  uint32_t v = r.readUint32Big();
  r.seek(-4, athena::SeekOrigin::Current);
  return v == 0xffffffff;
}

static bool AtEnd16(athena::io::IStreamReader& r) {
  uint16_t v = r.readUint16Big();
  r.seek(-2, athena::SeekOrigin::Current);
  return v == 0xffff;
}

template <athena::Endian DNAE>
static void ReadRangedObjectIds(NameDB* db, athena::io::IStreamReader& r, NameDB::Type tp) {
  uint16_t id;
  athena::io::Read<athena::io::PropType::None>::Do<decltype(id), DNAE>({}, id, r);
  if ((id & 0x8000) == 0x8000) {
    uint16_t endId;
    athena::io::Read<athena::io::PropType::None>::Do<decltype(endId), DNAE>({}, endId, r);
    for (uint16_t i = uint16_t(id & 0x7fff); i <= uint16_t(endId & 0x7fff); ++i) {
      ObjectId useId = i;
      if (tp == NameDB::Type::Layer)
        useId.id |= 0x8000;
      else if (tp == NameDB::Type::Keymap)
        useId.id |= 0x4000;
      if (db)
        db->registerPair(NameDB::generateName(useId, tp), useId);
    }
  } else {
    if (tp == NameDB::Type::Layer)
      id |= 0x8000;
    else if (tp == NameDB::Type::Keymap)
      id |= 0x4000;
    if (db)
      db->registerPair(NameDB::generateName(id, tp), id);
  }
}

template <athena::Endian DNAE, class T>
static void WriteRangedObjectIds(athena::io::IStreamWriter& w, const T& list) {
  if (list.cbegin() == list.cend())
    return;
  bool inRange = false;
  uint16_t lastId = list.cbegin()->first.id & 0x3fff;
  for (auto it = list.cbegin() + 1; it != list.cend(); ++it) {
    uint16_t thisId = it->first.id & 0x3fff;
    if (thisId == lastId + 1) {
      if (!inRange) {
        inRange = true;
        lastId |= 0x8000;
        athena::io::Write<athena::io::PropType::None>::Do<decltype(lastId), DNAE>({}, lastId, w);
      }
    } else {
      inRange = false;
      athena::io::Write<athena::io::PropType::None>::Do<decltype(lastId), DNAE>({}, lastId, w);
    }
    lastId = thisId;
  }
  athena::io::Write<athena::io::PropType::None>::Do<decltype(lastId), DNAE>({}, lastId, w);
  uint16_t term = 0xffff;
  athena::io::Write<athena::io::PropType::None>::Do<decltype(term), DNAE>({}, term, w);
}

AudioGroupProject::AudioGroupProject(athena::io::IStreamReader& r, GCNDataTag) {
  while (!AtEnd32(r)) {
    GroupHeader<athena::Endian::Big> header;
    header.read(r);

    if (GroupId::CurNameDB)
      GroupId::CurNameDB->registerPair(NameDB::generateName(header.groupId, NameDB::Type::Group), header.groupId);

#if 0
    /* Sound Macros */
    r.seek(header.soundMacroIdsOff, athena::SeekOrigin::Begin);
    while (!AtEnd16(r)) {
      ReadRangedObjectIds<athena::Endian::Big>(SoundMacroId::CurNameDB, r, NameDB::Type::SoundMacro);
    }

    /* Samples */
    r.seek(header.samplIdsOff, athena::SeekOrigin::Begin);
    while (!AtEnd16(r)) {
      ReadRangedObjectIds<athena::Endian::Big>(SampleId::CurNameDB, r, NameDB::Type::Sample);
    }

    /* Tables */
    r.seek(header.tableIdsOff, athena::SeekOrigin::Begin);
    while (!AtEnd16(r)) {
      ReadRangedObjectIds<athena::Endian::Big>(TableId::CurNameDB, r, NameDB::Type::Table);
    }

    /* Keymaps */
    r.seek(header.keymapIdsOff, athena::SeekOrigin::Begin);
    while (!AtEnd16(r)) {
      ReadRangedObjectIds<athena::Endian::Big>(KeymapId::CurNameDB, r, NameDB::Type::Keymap);
    }

    /* Layers */
    r.seek(header.layerIdsOff, athena::SeekOrigin::Begin);
    while (!AtEnd16(r)) {
      ReadRangedObjectIds<athena::Endian::Big>(LayersId::CurNameDB, r, NameDB::Type::Layer);
    }
#endif

    if (header.type == GroupType::Song) {
      auto& idx = m_songGroups[header.groupId];
      idx = MakeObj<SongGroupIndex>();

      /* Normal pages */
      r.seek(header.pageTableOff, athena::SeekOrigin::Begin);
      while (!AtEnd64(r)) {
        SongGroupIndex::PageEntryDNA<athena::Endian::Big> entry;
        entry.read(r);
        idx->m_normPages[entry.programNo] = entry;
      }

      /* Drum pages */
      r.seek(header.drumTableOff, athena::SeekOrigin::Begin);
      while (!AtEnd64(r)) {
        SongGroupIndex::PageEntryDNA<athena::Endian::Big> entry;
        entry.read(r);
        idx->m_drumPages[entry.programNo] = entry;
      }

      /* MIDI setups */
      r.seek(header.midiSetupsOff, athena::SeekOrigin::Begin);
      while (r.position() < header.groupEndOff) {
        uint16_t songId = r.readUint16Big();
        r.seek(2, athena::SeekOrigin::Current);
        std::array<SongGroupIndex::MIDISetup, 16>& setup = idx->m_midiSetups[songId];
        for (int i = 0; i < 16; ++i) {
          setup[i].read(r);
        }
        if (SongId::CurNameDB) {
          SongId::CurNameDB->registerPair(NameDB::generateName(songId, NameDB::Type::Song), songId);
        }
      }
    } else if (header.type == GroupType::SFX) {
      auto& idx = m_sfxGroups[header.groupId];
      idx = MakeObj<SFXGroupIndex>();

      /* SFX entries */
      r.seek(header.pageTableOff, athena::SeekOrigin::Begin);
      uint16_t count = r.readUint16Big();
      r.seek(2, athena::SeekOrigin::Current);
      idx->m_sfxEntries.reserve(count);
      for (int i = 0; i < count; ++i) {
        SFXGroupIndex::SFXEntryDNA<athena::Endian::Big> entry;
        entry.read(r);
        idx->m_sfxEntries[entry.sfxId.id] = entry;
        if (SFXId::CurNameDB)
          SFXId::CurNameDB->registerPair(NameDB::generateName(entry.sfxId.id, NameDB::Type::SFX), entry.sfxId.id);
      }
    }

    r.seek(header.groupEndOff, athena::SeekOrigin::Begin);
  }
}

template <athena::Endian DNAE>
AudioGroupProject AudioGroupProject::_AudioGroupProject(athena::io::IStreamReader& r, bool absOffs) {
  AudioGroupProject ret;

  while (!AtEnd32(r)) {
    atInt64 groupBegin = r.position();
    atInt64 subDataOff = absOffs ? 0 : groupBegin + 8;
    GroupHeader<DNAE> header;
    header.read(r);

    GroupId::CurNameDB->registerPair(NameDB::generateName(header.groupId, NameDB::Type::Group), header.groupId);

#if 0
    /* Sound Macros */
    r.seek(subDataOff + header.soundMacroIdsOff, athena::SeekOrigin::Begin);
    while (!AtEnd16(r)) {
      ReadRangedObjectIds<DNAE>(SoundMacroId::CurNameDB, r, NameDB::Type::SoundMacro);
    }

    /* Samples */
    r.seek(subDataOff + header.samplIdsOff, athena::SeekOrigin::Begin);
    while (!AtEnd16(r)) {
      ReadRangedObjectIds<DNAE>(SampleId::CurNameDB, r, NameDB::Type::Sample);
    }

    /* Tables */
    r.seek(subDataOff + header.tableIdsOff, athena::SeekOrigin::Begin);
    while (!AtEnd16(r)) {
      ReadRangedObjectIds<DNAE>(TableId::CurNameDB, r, NameDB::Type::Table);
    }

    /* Keymaps */
    r.seek(subDataOff + header.keymapIdsOff, athena::SeekOrigin::Begin);
    while (!AtEnd16(r)) {
      ReadRangedObjectIds<DNAE>(KeymapId::CurNameDB, r, NameDB::Type::Keymap);
    }

    /* Layers */
    r.seek(subDataOff + header.layerIdsOff, athena::SeekOrigin::Begin);
    while (!AtEnd16(r)) {
      ReadRangedObjectIds<DNAE>(LayersId::CurNameDB, r, NameDB::Type::Layer);
    }
#endif

    if (header.type == GroupType::Song) {
      auto& idx = ret.m_songGroups[header.groupId];
      idx = MakeObj<SongGroupIndex>();

      if (absOffs) {
        /* Normal pages */
        r.seek(header.pageTableOff, athena::SeekOrigin::Begin);
        while (!AtEnd16(r)) {
          SongGroupIndex::PageEntryDNA<DNAE> entry;
          entry.read(r);
          idx->m_normPages[entry.programNo] = entry;
        }

        /* Drum pages */
        r.seek(header.drumTableOff, athena::SeekOrigin::Begin);
        while (!AtEnd16(r)) {
          SongGroupIndex::PageEntryDNA<DNAE> entry;
          entry.read(r);
          idx->m_drumPages[entry.programNo] = entry;
        }

        /* MIDI setups */
        r.seek(header.midiSetupsOff, athena::SeekOrigin::Begin);
        while (r.position() < header.groupEndOff) {
          uint16_t songId;
          athena::io::Read<athena::io::PropType::None>::Do<decltype(songId), DNAE>({}, songId, r);
          r.seek(2, athena::SeekOrigin::Current);
          std::array<SongGroupIndex::MIDISetup, 16>& setup = idx->m_midiSetups[songId];
          for (int i = 0; i < 16; ++i) {
            setup[i].read(r);
          }
          SongId::CurNameDB->registerPair(NameDB::generateName(songId, NameDB::Type::Song), songId);
        }
      } else {
        /* Normal pages */
        r.seek(subDataOff + header.pageTableOff, athena::SeekOrigin::Begin);
        while (!AtEnd16(r)) {
          SongGroupIndex::MusyX1PageEntryDNA<DNAE> entry;
          entry.read(r);
          idx->m_normPages[entry.programNo] = entry;
        }

        /* Drum pages */
        r.seek(subDataOff + header.drumTableOff, athena::SeekOrigin::Begin);
        while (!AtEnd16(r)) {
          SongGroupIndex::MusyX1PageEntryDNA<DNAE> entry;
          entry.read(r);
          idx->m_drumPages[entry.programNo] = entry;
        }

        /* MIDI setups */
        r.seek(subDataOff + header.midiSetupsOff, athena::SeekOrigin::Begin);
        while (atInt64(r.position() + 4) < groupBegin + header.groupEndOff) {
          uint16_t songId;
          athena::io::Read<athena::io::PropType::None>::Do<decltype(songId), DNAE>({}, songId, r);
          r.seek(2, athena::SeekOrigin::Current);
          std::array<SongGroupIndex::MIDISetup, 16>& setup = idx->m_midiSetups[songId];
          for (int i = 0; i < 16; ++i) {
            SongGroupIndex::MusyX1MIDISetup ent;
            ent.read(r);
            setup[i] = ent;
          }
          SongId::CurNameDB->registerPair(NameDB::generateName(songId, NameDB::Type::Song), songId);
        }
      }
    } else if (header.type == GroupType::SFX) {
      auto& idx = ret.m_sfxGroups[header.groupId];
      idx = MakeObj<SFXGroupIndex>();

      /* SFX entries */
      r.seek(subDataOff + header.pageTableOff, athena::SeekOrigin::Begin);
      uint16_t count;
      athena::io::Read<athena::io::PropType::None>::Do<decltype(count), DNAE>({}, count, r);
      r.seek(2, athena::SeekOrigin::Current);
      idx->m_sfxEntries.reserve(count);
      for (int i = 0; i < count; ++i) {
        SFXGroupIndex::SFXEntryDNA<DNAE> entry;
        entry.read(r);
        r.seek(2, athena::SeekOrigin::Current);
        idx->m_sfxEntries[entry.sfxId.id] = entry;
        SFXId::CurNameDB->registerPair(NameDB::generateName(entry.sfxId.id, NameDB::Type::SFX), entry.sfxId.id);
      }
    }

    if (absOffs)
      r.seek(header.groupEndOff, athena::SeekOrigin::Begin);
    else
      r.seek(groupBegin + header.groupEndOff, athena::SeekOrigin::Begin);
  }

  return ret;
}

AudioGroupProject AudioGroupProject::CreateAudioGroupProject(const AudioGroupData& data) {
  if (data.getProjSize() < 4)
    return {};
  athena::io::MemoryReader r(data.getProj(), data.getProjSize());
  switch (data.getDataFormat()) {
  case DataFormat::GCN:
  default:
    return AudioGroupProject(r, GCNDataTag{});
  case DataFormat::N64:
    return _AudioGroupProject<athena::Endian::Big>(r, data.getAbsoluteProjOffsets());
  case DataFormat::PC:
    return _AudioGroupProject<athena::Endian::Little>(r, data.getAbsoluteProjOffsets());
  }
}

std::string ParseStringSlashId(const std::string& str, uint16_t& idOut) {
  size_t slashPos = str.find('/');
  if (slashPos == std::string::npos)
    return {};
  idOut = uint16_t(strtoul(str.data() + slashPos + 1, nullptr, 0));
  return {str.begin(), str.begin() + slashPos};
}

void SongGroupIndex::fromYAML(athena::io::YAMLDocReader& r) {
  if (auto __v2 = r.enterSubRecord("normPages")) {
    m_normPages.reserve(r.getCurNode()->m_mapChildren.size());
    for (const auto& pg : r.getCurNode()->m_mapChildren)
      if (auto __r2 = r.enterSubRecord(pg.first.c_str()))
        m_normPages[strtoul(pg.first.c_str(), nullptr, 0)].read(r);
  }
  if (auto __v2 = r.enterSubRecord("drumPages")) {
    m_drumPages.reserve(r.getCurNode()->m_mapChildren.size());
    for (const auto& pg : r.getCurNode()->m_mapChildren)
      if (auto __r2 = r.enterSubRecord(pg.first.c_str()))
        m_drumPages[strtoul(pg.first.c_str(), nullptr, 0)].read(r);
  }
  if (auto __v2 = r.enterSubRecord("songs")) {
    m_midiSetups.reserve(r.getCurNode()->m_mapChildren.size());
    for (const auto& song : r.getCurNode()->m_mapChildren) {
      size_t chanCount;
      if (auto __v3 = r.enterSubVector(song.first.c_str(), chanCount)) {
        uint16_t songId;
        std::string songName = ParseStringSlashId(song.first, songId);
        if (songName.empty() || songId == 0xffff)
          continue;
        SongId::CurNameDB->registerPair(songName, songId);

        std::array<SongGroupIndex::MIDISetup, 16>& setup = m_midiSetups[songId];
        for (size_t i = 0; i < 16 && i < chanCount; ++i)
          if (auto __r2 = r.enterSubRecord(nullptr))
            setup[i].read(r);
      }
    }
  }
}

void SFXGroupIndex::fromYAML(athena::io::YAMLDocReader& r) {
  for (const auto& sfx : r.getCurNode()->m_mapChildren)
    if (auto __r2 = r.enterSubRecord(sfx.first.c_str())) {
      uint16_t sfxId;
      std::string sfxName = ParseStringSlashId(sfx.first, sfxId);
      if (sfxName.empty() || sfxId == 0xffff)
        continue;
      SFXId::CurNameDB->registerPair(sfxName, sfxId);
      m_sfxEntries[sfxId].read(r);
    }
}

AudioGroupProject AudioGroupProject::CreateAudioGroupProject(SystemStringView groupPath) {
  AudioGroupProject ret;
  SystemString projPath(groupPath);
  projPath += _SYS_STR("/!project.yaml");
  athena::io::FileReader fi(projPath, 32 * 1024, false);

  if (!fi.hasError()) {
    athena::io::YAMLDocReader r;
    if (r.parse(&fi) && !r.readString("DNAType").compare("amuse::Project")) {
      if (auto __v = r.enterSubRecord("songGroups")) {
        ret.m_songGroups.reserve(r.getCurNode()->m_mapChildren.size());
        for (const auto& grp : r.getCurNode()->m_mapChildren) {
          if (auto __r = r.enterSubRecord(grp.first.c_str())) {
            uint16_t groupId;
            std::string groupName = ParseStringSlashId(grp.first, groupId);
            if (groupName.empty() || groupId == 0xffff)
              continue;
            GroupId::CurNameDB->registerPair(groupName, groupId);

            auto& idx = ret.m_songGroups[groupId];
            idx = MakeObj<SongGroupIndex>();
            idx->fromYAML(r);
          }
        }
      }

      if (auto __v = r.enterSubRecord("sfxGroups")) {
        ret.m_sfxGroups.reserve(r.getCurNode()->m_mapChildren.size());
        for (const auto& grp : r.getCurNode()->m_mapChildren) {
          if (auto __r = r.enterSubRecord(grp.first.c_str())) {
            uint16_t groupId;
            std::string groupName = ParseStringSlashId(grp.first, groupId);
            if (groupName.empty() || groupId == 0xffff)
              continue;
            GroupId::CurNameDB->registerPair(groupName, groupId);

            auto& idx = ret.m_sfxGroups[groupId];
            idx = MakeObj<SFXGroupIndex>();
            idx->fromYAML(r);
          }
        }
      }
    }
  }

  return ret;
}

static ObjectId RegisterDedupedName(ObjectId origId, amuse::NameDB* db, NameDB::Type tp) {
  std::string dupeName = std::string(db->resolveNameFromId(origId)) + "-copy";
  std::string useName = dupeName;
  int dupeIdx = 1;
  while (db->m_stringToId.find(useName) != db->m_stringToId.cend())
    useName = fmt::format(fmt("{}{}"), dupeName, dupeIdx++);
  ObjectId ret = db->generateId(tp);
  db->registerPair(useName, ret);
  return ret;
}

SFXGroupIndex::SFXGroupIndex(const SFXGroupIndex& other) {
  for (const auto& sfx : other.m_sfxEntries)
    m_sfxEntries[RegisterDedupedName(sfx.first, SFXId::CurNameDB, NameDB::Type::SFX)] = sfx.second;
}

AudioGroupProject AudioGroupProject::CreateAudioGroupProject(const AudioGroupProject& oldProj) {
  AudioGroupProject ret;

  for (const auto& grp : oldProj.songGroups())
    ret.m_songGroups[RegisterDedupedName(grp.first, GroupId::CurNameDB, NameDB::Type::Group)] =
        MakeObj<SongGroupIndex>(*grp.second);
  for (const auto& grp : oldProj.sfxGroups())
    ret.m_sfxGroups[RegisterDedupedName(grp.first, GroupId::CurNameDB, NameDB::Type::Group)] =
        MakeObj<SFXGroupIndex>(*grp.second);

  return ret;
}

void AudioGroupProject::BootstrapObjectIDs(athena::io::IStreamReader& r, GCNDataTag) {
  while (!AtEnd32(r)) {
    GroupHeader<athena::Endian::Big> header;
    header.read(r);

    GroupId::CurNameDB->registerPair(NameDB::generateName(header.groupId, NameDB::Type::Group), header.groupId);

    /* Sound Macros */
    r.seek(header.soundMacroIdsOff, athena::SeekOrigin::Begin);
    while (!AtEnd16(r))
      ReadRangedObjectIds<athena::Endian::Big>(SoundMacroId::CurNameDB, r, NameDB::Type::SoundMacro);

    /* Samples */
    r.seek(header.samplIdsOff, athena::SeekOrigin::Begin);
    while (!AtEnd16(r)) {
      ReadRangedObjectIds<athena::Endian::Big>(SampleId::CurNameDB, r, NameDB::Type::Sample);
    }

    /* Tables */
    r.seek(header.tableIdsOff, athena::SeekOrigin::Begin);
    while (!AtEnd16(r)) {
      ReadRangedObjectIds<athena::Endian::Big>(TableId::CurNameDB, r, NameDB::Type::Table);
    }

    /* Keymaps */
    r.seek(header.keymapIdsOff, athena::SeekOrigin::Begin);
    while (!AtEnd16(r)) {
      ReadRangedObjectIds<athena::Endian::Big>(KeymapId::CurNameDB, r, NameDB::Type::Keymap);
    }

    /* Layers */
    r.seek(header.layerIdsOff, athena::SeekOrigin::Begin);
    while (!AtEnd16(r)) {
      ReadRangedObjectIds<athena::Endian::Big>(LayersId::CurNameDB, r, NameDB::Type::Layer);
    }

    if (header.type == GroupType::Song) {
      /* MIDI setups */
      r.seek(header.midiSetupsOff, athena::SeekOrigin::Begin);
      while (r.position() < header.groupEndOff) {
        uint16_t id = r.readUint16Big();
        SongId::CurNameDB->registerPair(NameDB::generateName(id, NameDB::Type::Song), id);
        r.seek(2 + 5 * 16, athena::SeekOrigin::Current);
      }
    } else if (header.type == GroupType::SFX) {
      /* SFX entries */
      r.seek(header.pageTableOff, athena::SeekOrigin::Begin);
      uint16_t count = r.readUint16Big();
      r.seek(2, athena::SeekOrigin::Current);
      for (int i = 0; i < count; ++i) {
        SFXGroupIndex::SFXEntryDNA<athena::Endian::Big> entry;
        entry.read(r);
        SFXId::CurNameDB->registerPair(NameDB::generateName(entry.sfxId.id, NameDB::Type::SFX), entry.sfxId.id);
      }
    }

    r.seek(header.groupEndOff, athena::SeekOrigin::Begin);
  }
}

template <athena::Endian DNAE>
void AudioGroupProject::BootstrapObjectIDs(athena::io::IStreamReader& r, bool absOffs) {
  while (!AtEnd32(r)) {
    atInt64 groupBegin = r.position();
    atInt64 subDataOff = absOffs ? 0 : groupBegin + 8;
    GroupHeader<DNAE> header;
    header.read(r);

    GroupId::CurNameDB->registerPair(NameDB::generateName(header.groupId, NameDB::Type::Group), header.groupId);

    /* Sound Macros */
    r.seek(subDataOff + header.soundMacroIdsOff, athena::SeekOrigin::Begin);
    while (!AtEnd16(r)) {
      ReadRangedObjectIds<DNAE>(SoundMacroId::CurNameDB, r, NameDB::Type::SoundMacro);
    }

    /* Samples */
    r.seek(subDataOff + header.samplIdsOff, athena::SeekOrigin::Begin);
    while (!AtEnd16(r)) {
      ReadRangedObjectIds<DNAE>(SampleId::CurNameDB, r, NameDB::Type::Sample);
    }

    /* Tables */
    r.seek(subDataOff + header.tableIdsOff, athena::SeekOrigin::Begin);
    while (!AtEnd16(r)) {
      ReadRangedObjectIds<DNAE>(TableId::CurNameDB, r, NameDB::Type::Table);
    }

    /* Keymaps */
    r.seek(subDataOff + header.keymapIdsOff, athena::SeekOrigin::Begin);
    while (!AtEnd16(r)) {
      ReadRangedObjectIds<DNAE>(KeymapId::CurNameDB, r, NameDB::Type::Keymap);
    }

    /* Layers */
    r.seek(subDataOff + header.layerIdsOff, athena::SeekOrigin::Begin);
    while (!AtEnd16(r)) {
      ReadRangedObjectIds<DNAE>(LayersId::CurNameDB, r, NameDB::Type::Layer);
    }

    if (header.type == GroupType::Song) {
      /* MIDI setups */
      if (absOffs) {
        r.seek(header.midiSetupsOff, athena::SeekOrigin::Begin);
        while (r.position() < header.groupEndOff) {
          uint16_t id;
          athena::io::Read<athena::io::PropType::None>::Do<decltype(id), DNAE>({}, id, r);
          SongId::CurNameDB->registerPair(NameDB::generateName(id, NameDB::Type::Song), id);
          r.seek(2 + 5 * 16, athena::SeekOrigin::Current);
        }
      } else {
        r.seek(subDataOff + header.midiSetupsOff, athena::SeekOrigin::Begin);
        while (atInt64(r.position()) < groupBegin + header.groupEndOff) {
          uint16_t id;
          athena::io::Read<athena::io::PropType::None>::Do<decltype(id), DNAE>({}, id, r);
          SongId::CurNameDB->registerPair(NameDB::generateName(id, NameDB::Type::Song), id);
          r.seek(2 + 8 * 16, athena::SeekOrigin::Current);
        }
      }
    } else if (header.type == GroupType::SFX) {
      /* SFX entries */
      r.seek(subDataOff + header.pageTableOff, athena::SeekOrigin::Begin);
      uint16_t count;
      athena::io::Read<athena::io::PropType::None>::Do<decltype(count), DNAE>({}, count, r);
      r.seek(2, athena::SeekOrigin::Current);
      for (int i = 0; i < count; ++i) {
        SFXGroupIndex::SFXEntryDNA<DNAE> entry;
        entry.read(r);
        r.seek(2, athena::SeekOrigin::Current);
        SFXId::CurNameDB->registerPair(NameDB::generateName(entry.sfxId.id, NameDB::Type::SFX), entry.sfxId.id);
      }
    }

    if (absOffs) {
      r.seek(header.groupEndOff, athena::SeekOrigin::Begin);
    } else {
      r.seek(groupBegin + header.groupEndOff, athena::SeekOrigin::Begin);
    }
  }
}

void AudioGroupProject::BootstrapObjectIDs(const AudioGroupData& data) {
  athena::io::MemoryReader r(data.getProj(), data.getProjSize());
  switch (data.getDataFormat()) {
  case DataFormat::GCN:
  default:
    BootstrapObjectIDs(r, GCNDataTag{});
    break;
  case DataFormat::N64:
    BootstrapObjectIDs<athena::Endian::Big>(r, data.getAbsoluteProjOffsets());
    break;
  case DataFormat::PC:
    BootstrapObjectIDs<athena::Endian::Little>(r, data.getAbsoluteProjOffsets());
    break;
  }
}

const SongGroupIndex* AudioGroupProject::getSongGroupIndex(GroupId groupId) const {
  auto search = m_songGroups.find(groupId);
  if (search != m_songGroups.cend())
    return search->second.get();
  return nullptr;
}

const SFXGroupIndex* AudioGroupProject::getSFXGroupIndex(GroupId groupId) const {
  auto search = m_sfxGroups.find(groupId);
  if (search != m_sfxGroups.cend())
    return search->second.get();
  return nullptr;
}

void SongGroupIndex::toYAML(athena::io::YAMLDocWriter& w) const {
  if (!m_normPages.empty()) {
    if (auto __v2 = w.enterSubRecord("normPages")) {
      for (const auto& pg : SortUnorderedMap(m_normPages)) {
        if (auto __r2 = w.enterSubRecord(fmt::format(fmt("{}"), pg.first).c_str())) {
          w.setStyle(athena::io::YAMLNodeStyle::Flow);
          pg.second.get().write(w);
        }
      }
    }
  }
  if (!m_drumPages.empty()) {
    if (auto __v2 = w.enterSubRecord("drumPages")) {
      for (const auto& pg : SortUnorderedMap(m_drumPages)) {
        if (auto __r2 = w.enterSubRecord(fmt::format(fmt("{}"), pg.first).c_str())) {
          w.setStyle(athena::io::YAMLNodeStyle::Flow);
          pg.second.get().write(w);
        }
      }
    }
  }
  if (!m_midiSetups.empty()) {
    if (auto __v2 = w.enterSubRecord("songs")) {
      for (const auto& song : SortUnorderedMap(m_midiSetups)) {
        std::string songString = fmt::format(fmt("{}/0x{}"),
            SongId::CurNameDB->resolveNameFromId(song.first), song.first);
        if (auto __v3 = w.enterSubVector(songString.c_str()))
          for (int i = 0; i < 16; ++i)
            if (auto __r2 = w.enterSubRecord(nullptr)) {
              w.setStyle(athena::io::YAMLNodeStyle::Flow);
              song.second.get()[i].write(w);
            }
      }
    }
  }
}

void SFXGroupIndex::toYAML(athena::io::YAMLDocWriter& w) const {
  for (const auto& sfx : SortUnorderedMap(m_sfxEntries)) {
    std::string sfxString = fmt::format(fmt("{}/0x{}"),
        SFXId::CurNameDB->resolveNameFromId(sfx.first), sfx.first);
    if (auto __r2 = w.enterSubRecord(sfxString.c_str())) {
      w.setStyle(athena::io::YAMLNodeStyle::Flow);
      sfx.second.get().write(w);
    }
  }
}

std::vector<uint8_t> AudioGroupProject::toYAML() const {
  athena::io::YAMLDocWriter w("amuse::Project");

  if (!m_songGroups.empty()) {
    if (auto __v = w.enterSubRecord("songGroups")) {
      for (const auto& p : SortUnorderedMap(m_songGroups)) {
        std::string groupString = fmt::format(fmt("{}/0x{}"),
            GroupId::CurNameDB->resolveNameFromId(p.first), p.first);
        if (auto __r = w.enterSubRecord(groupString.c_str())) {
          p.second.get()->toYAML(w);
        }
      }
    }
  }

  if (!m_sfxGroups.empty()) {
    if (auto __v = w.enterSubRecord("sfxGroups")) {
      for (const auto& p : SortUnorderedMap(m_sfxGroups)) {
        std::string groupString = fmt::format(fmt("{}/0x{}"),
            GroupId::CurNameDB->resolveNameFromId(p.first), p.first);
        if (auto __r = w.enterSubRecord(groupString.c_str())) {
          p.second.get()->toYAML(w);
        }
      }
    }
  }

  athena::io::VectorWriter fo;
  w.finish(&fo);
  return fo.data();
}

#if 0
struct ObjectIdPool
{
    std::unordered_set<SoundMacroId> soundMacros;
    std::unordered_set<SampleId> samples;
    std::unordered_set<TableId> tables;
    std::unordered_set<KeymapId> keymaps;
    std::unordered_set<LayersId> layers;

    void _recursiveAddSoundMacro(SoundMacroId id, const AudioGroupPool& pool)
    {
        if (soundMacros.find(id) != soundMacros.cend())
            return;
        const SoundMacro* macro = pool.soundMacro(id);
        if (!macro)
            return;
        soundMacros.insert(id);
        for (const auto& cmd : macro->m_cmds)
        {
            switch (cmd->Isa())
            {
            case SoundMacro::CmdOp::StartSample:
                samples.insert(static_cast<SoundMacro::CmdStartSample*>(cmd.get())->sample);
                break;
            case SoundMacro::CmdOp::SetAdsr:
                tables.insert(static_cast<SoundMacro::CmdSetAdsr*>(cmd.get())->table);
                break;
            case SoundMacro::CmdOp::ScaleVolume:
                tables.insert(static_cast<SoundMacro::CmdScaleVolume*>(cmd.get())->table);
                break;
            case SoundMacro::CmdOp::Envelope:
                tables.insert(static_cast<SoundMacro::CmdEnvelope*>(cmd.get())->table);
                break;
            case SoundMacro::CmdOp::FadeIn:
                tables.insert(static_cast<SoundMacro::CmdFadeIn*>(cmd.get())->table);
                break;
            case SoundMacro::CmdOp::SetPitchAdsr:
                tables.insert(static_cast<SoundMacro::CmdSetPitchAdsr*>(cmd.get())->table);
                break;
            case SoundMacro::CmdOp::SplitKey:
                _recursiveAddSoundMacro(static_cast<SoundMacro::CmdSplitKey*>(cmd.get())->macro, pool);
                break;
            case SoundMacro::CmdOp::SplitVel:
                _recursiveAddSoundMacro(static_cast<SoundMacro::CmdSplitVel*>(cmd.get())->macro, pool);
                break;
            case SoundMacro::CmdOp::Goto:
                _recursiveAddSoundMacro(static_cast<SoundMacro::CmdGoto*>(cmd.get())->macro, pool);
                break;
            case SoundMacro::CmdOp::PlayMacro:
                _recursiveAddSoundMacro(static_cast<SoundMacro::CmdPlayMacro*>(cmd.get())->macro, pool);
                break;
            case SoundMacro::CmdOp::SplitMod:
                _recursiveAddSoundMacro(static_cast<SoundMacro::CmdSplitMod*>(cmd.get())->macro, pool);
                break;
            case SoundMacro::CmdOp::SplitRnd:
                _recursiveAddSoundMacro(static_cast<SoundMacro::CmdSplitRnd*>(cmd.get())->macro, pool);
                break;
            case SoundMacro::CmdOp::GoSub:
                _recursiveAddSoundMacro(static_cast<SoundMacro::CmdGoSub*>(cmd.get())->macro, pool);
                break;
            case SoundMacro::CmdOp::TrapEvent:
                _recursiveAddSoundMacro(static_cast<SoundMacro::CmdTrapEvent*>(cmd.get())->macro, pool);
                break;
            case SoundMacro::CmdOp::SendMessage:
                _recursiveAddSoundMacro(static_cast<SoundMacro::CmdSendMessage*>(cmd.get())->macro, pool);
                break;
            default:
                break;
            }

        }
    }

    void addRootId(ObjectId id, const AudioGroupPool& pool)
    {
        if (id & 0x8000)
        {
            if (const std::vector<LayerMapping>* lms = pool.layer(id))
            {
                layers.insert(id);
                for (const auto& lm : *lms)
                    _recursiveAddSoundMacro(lm.macro, pool);
            }
        }
        else if (id & 0x4000)
        {
            if (const auto* kms = pool.keymap(id))
            {
                keymaps.insert(id);
                for (int i = 0; i < 128; ++i)
                    _recursiveAddSoundMacro(kms[i].macro, pool);
            }
        }
        else
        {
            _recursiveAddSoundMacro(id, pool);
        }
    }

    void cleanup()
    {
        soundMacros.erase(SoundMacroId{});
        samples.erase(SampleId{});
        tables.erase(TableId{});
        keymaps.erase(KeymapId{});
        layers.erase(LayersId{});
    }
};
#endif

std::vector<uint8_t> AudioGroupProject::toGCNData(const AudioGroupPool& pool,
                                                  const AudioGroupSampleDirectory& sdir) const {
  constexpr athena::Endian DNAE = athena::Endian::Big;

  athena::io::VectorWriter fo;

  std::vector<GroupId> groupIds;
  groupIds.reserve(m_songGroups.size() + m_sfxGroups.size());
  for (auto& p : m_songGroups)
    groupIds.push_back(p.first);
  for (auto& p : m_sfxGroups)
    groupIds.push_back(p.first);
  std::sort(groupIds.begin(), groupIds.end());

  const uint64_t term64 = 0xffffffffffffffff;
  const uint16_t padding = 0;

  for (GroupId id : groupIds) {
    auto search = m_songGroups.find(id);
    if (search != m_songGroups.end()) {
      const SongGroupIndex& index = *search->second;

      auto groupStart = fo.position();
      GroupHeader<DNAE> header = {};
      header.write(fo);

      header.groupId = id;
      header.type = GroupType::Song;

      header.soundMacroIdsOff = fo.position();
      WriteRangedObjectIds<DNAE>(fo, SortUnorderedMap(pool.soundMacros()));
      header.samplIdsOff = fo.position();
      WriteRangedObjectIds<DNAE>(fo, SortUnorderedMap(sdir.sampleEntries()));
      header.tableIdsOff = fo.position();
      WriteRangedObjectIds<DNAE>(fo, SortUnorderedMap(pool.tables()));
      header.keymapIdsOff = fo.position();
      WriteRangedObjectIds<DNAE>(fo, SortUnorderedMap(pool.keymaps()));
      header.layerIdsOff = fo.position();
      WriteRangedObjectIds<DNAE>(fo, SortUnorderedMap(pool.layers()));

      header.pageTableOff = fo.position();
      for (auto& p : SortUnorderedMap(index.m_normPages)) {
        SongGroupIndex::PageEntryDNA<DNAE> entry = p.second.get().toDNA<DNAE>(p.first);
        entry.write(fo);
      }
      athena::io::Write<athena::io::PropType::None>::Do<decltype(term64), DNAE>({}, term64, fo);

      header.drumTableOff = fo.position();
      for (auto& p : SortUnorderedMap(index.m_drumPages)) {
        SongGroupIndex::PageEntryDNA<DNAE> entry = p.second.get().toDNA<DNAE>(p.first);
        entry.write(fo);
      }
      athena::io::Write<athena::io::PropType::None>::Do<decltype(term64), DNAE>({}, term64, fo);

      header.midiSetupsOff = fo.position();
      for (auto& p : SortUnorderedMap(index.m_midiSetups)) {
        uint16_t songId = p.first.id;
        athena::io::Write<athena::io::PropType::None>::Do<decltype(songId), DNAE>({}, songId, fo);
        athena::io::Write<athena::io::PropType::None>::Do<decltype(padding), DNAE>({}, padding, fo);

        const std::array<SongGroupIndex::MIDISetup, 16>& setup = p.second.get();
        for (int i = 0; i < 16; ++i)
          setup[i].write(fo);
      }

      header.groupEndOff = fo.position();
      fo.seek(groupStart, athena::SeekOrigin::Begin);
      header.write(fo);
      fo.seek(header.groupEndOff, athena::SeekOrigin::Begin);
    } else {
      auto search2 = m_sfxGroups.find(id);
      if (search2 != m_sfxGroups.end()) {
        const SFXGroupIndex& index = *search2->second;

        auto groupStart = fo.position();
        GroupHeader<DNAE> header = {};
        header.write(fo);

        header.groupId = id;
        header.type = GroupType::SFX;

        header.soundMacroIdsOff = fo.position();
        WriteRangedObjectIds<DNAE>(fo, SortUnorderedMap(pool.soundMacros()));
        header.samplIdsOff = fo.position();
        WriteRangedObjectIds<DNAE>(fo, SortUnorderedMap(sdir.sampleEntries()));
        header.tableIdsOff = fo.position();
        WriteRangedObjectIds<DNAE>(fo, SortUnorderedMap(pool.tables()));
        header.keymapIdsOff = fo.position();
        WriteRangedObjectIds<DNAE>(fo, SortUnorderedMap(pool.keymaps()));
        header.layerIdsOff = fo.position();
        WriteRangedObjectIds<DNAE>(fo, SortUnorderedMap(pool.layers()));

        header.pageTableOff = fo.position();
        uint16_t count = index.m_sfxEntries.size();
        athena::io::Write<athena::io::PropType::None>::Do<decltype(count), DNAE>({}, count, fo);
        athena::io::Write<athena::io::PropType::None>::Do<decltype(padding), DNAE>({}, padding, fo);
        for (auto& p : SortUnorderedMap(index.m_sfxEntries)) {
          SFXGroupIndex::SFXEntryDNA<DNAE> entry = p.second.get().toDNA<DNAE>(p.first);
          entry.write(fo);
        }

        header.groupEndOff = fo.position();
        fo.seek(groupStart, athena::SeekOrigin::Begin);
        header.write(fo);
        fo.seek(header.groupEndOff, athena::SeekOrigin::Begin);
      }
    }
  }

  const uint32_t finalTerm = 0xffffffff;
  athena::io::Write<athena::io::PropType::None>::Do<decltype(finalTerm), DNAE>({}, finalTerm, fo);

  return fo.data();
}

} // namespace amuse