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/* This file is part of the Spring engine (GPL v2 or later), see LICENSE.html */
#include "VirtualArchive.h"
#include "System/FileSystem/FileSystem.h"
#include "System/FileSystem/DataDirsAccess.h"
#include "System/FileSystem/FileQueryFlags.h"
#include "System/Log/ILog.h"
#include "minizip/zip.h"
#include <cassert>
CVirtualArchiveFactory* virtualArchiveFactory;
CVirtualArchiveFactory::CVirtualArchiveFactory() : IArchiveFactory("sva")
{
virtualArchiveFactory = this;
}
CVirtualArchiveFactory::~CVirtualArchiveFactory()
{
virtualArchiveFactory = 0;
}
CVirtualArchive* CVirtualArchiveFactory::AddArchive(const std::string& fileName)
{
CVirtualArchive* archive = new CVirtualArchive(fileName);
archives.push_back(archive);
return archive;
}
IArchive* CVirtualArchiveFactory::DoCreateArchive(const std::string& fileName) const
{
const std::string baseName = FileSystem::GetBasename(fileName);
for(std::vector<CVirtualArchive*>::const_iterator it = archives.begin(); it != archives.end(); ++it)
{
CVirtualArchive* archive = *it;
if(archive->GetFileName() == baseName)
{
return archive->Open();
}
}
return 0;
}
CVirtualArchiveOpen::CVirtualArchiveOpen(CVirtualArchive* archive, const std::string& fileName) : IArchive(fileName), archive(archive)
{
//Set subclass name index to archive's index (doesn't update while archive is open)
lcNameIndex = archive->GetNameIndex();
}
CVirtualArchiveOpen::~CVirtualArchiveOpen()
{
}
bool CVirtualArchiveOpen::IsOpen()
{
//Virtual archives are stored in memory and as such always open
return true;
}
unsigned int CVirtualArchiveOpen::NumFiles() const
{
return archive->NumFiles();
}
bool CVirtualArchiveOpen::GetFile( unsigned int fid, std::vector<std::uint8_t>& buffer )
{
return archive->GetFile(fid, buffer);
}
void CVirtualArchiveOpen::FileInfo( unsigned int fid, std::string& name, int& size ) const
{
return archive->FileInfo(fid, name, size);
}
CVirtualArchive::CVirtualArchive(const std::string& fileName) : fileName(fileName)
{
}
CVirtualArchive::~CVirtualArchive()
{
for(std::vector<CVirtualFile*>::iterator it = files.begin(); it != files.end(); ++it)
{
delete *it;
}
files.clear();
}
CVirtualArchiveOpen* CVirtualArchive::Open()
{
return new CVirtualArchiveOpen(this, fileName);
}
unsigned int CVirtualArchive::NumFiles() const
{
return files.size();
}
bool CVirtualArchive::GetFile( unsigned int fid, std::vector<std::uint8_t>& buffer )
{
if(fid >= files.size()) return false;
CVirtualFile* file = files[fid];
buffer = file->buffer;
return true;
}
void CVirtualArchive::FileInfo( unsigned int fid, std::string& name, int& size ) const
{
assert(fid < files.size());
CVirtualFile* file = files[fid];
name = file->GetName();
size = file->buffer.size();
}
CVirtualFile* CVirtualArchive::AddFile(const std::string& name)
{
unsigned int fidcounter = files.size();
CVirtualFile* file = new CVirtualFile(fidcounter, name);
files.push_back(file);
lcNameIndex[name] = fidcounter;
return file;
}
void CVirtualArchive::WriteToFile()
{
std::string zipFilePath = dataDirsAccess.LocateFile(fileName, FileQueryFlags::WRITE) + ".sdz";
LOG("Writing zip file for virtual archive %s to %s", fileName.c_str(), zipFilePath.c_str());
zipFile zip = zipOpen(zipFilePath.c_str(), APPEND_STATUS_CREATE);
if(!zip)
{
LOG("Could not open zip file %s for writing", zipFilePath.c_str());
return;
}
for(std::vector<CVirtualFile*>::iterator it = files.begin(); it != files.end(); ++it)
{
CVirtualFile* file = *it;
zipOpenNewFileInZip(zip, file->GetName().c_str(), NULL, NULL, 0, NULL, 0, NULL, Z_DEFLATED, Z_BEST_COMPRESSION);
zipWriteInFileInZip(zip, file->buffer.empty() ? NULL : &file->buffer[0], file->buffer.size());
zipCloseFileInZip(zip);
}
zipClose(zip, NULL);
}
CVirtualFile::CVirtualFile(int fid, const std::string& name) : name(name), fid(fid)
{
}
CVirtualFile::~CVirtualFile()
{
}
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