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/*
* This program is free software; you can redistribute it and/or
* modify it under the terms of the GNU General Public License
* as published by the Free Software Foundation; either version 2
* of the License, or (at your option) any later version.
*
* This program is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
* GNU General Public License for more details.
*
* You should have received a copy of the GNU General Public License
* along with this program; if not, write to the Free Software Foundation,
* Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301, USA.
*/
/** \file
* \ingroup bke
*/
#include "BKE_asset_catalog.hh"
#include "BLI_string_ref.hh"
#include <filesystem>
#include <fstream>
namespace fs = std::filesystem;
namespace blender::bke {
AssetCatalogService::AssetCatalogService()
{
}
AssetCatalog *AssetCatalogService::find_catalog(const CatalogID &catalog_id)
{
std::unique_ptr<AssetCatalog> *catalog_uptr_ptr = this->catalogs.lookup_ptr(catalog_id);
if (catalog_uptr_ptr == nullptr) {
return nullptr;
}
return catalog_uptr_ptr->get();
}
void AssetCatalogService::load_from_disk(const CatalogFilePath &asset_library_root)
{
fs::file_status status = fs::status(asset_library_root);
switch (status.type()) {
case fs::file_type::regular:
load_single_file(asset_library_root);
break;
case fs::file_type::directory:
load_directory_recursive(asset_library_root);
break;
default:
// TODO(@sybren): throw an appropriate exception.
return;
}
}
void AssetCatalogService::load_directory_recursive(const CatalogFilePath & /*directory_path*/)
{
// TODO(@sybren): implement
}
void AssetCatalogService::load_single_file(const CatalogFilePath &catalog_definition_file_path)
{
std::unique_ptr<AssetCatalogDefinitionFile> cdf = parse_catalog_file(
catalog_definition_file_path);
BLI_assert_msg(!this->catalog_definition_file,
"Only loading of a single catalog definition file is supported.");
this->catalog_definition_file = std::move(cdf);
}
std::unique_ptr<AssetCatalogDefinitionFile> AssetCatalogService::parse_catalog_file(
const CatalogFilePath &catalog_definition_file_path)
{
auto cdf = std::make_unique<AssetCatalogDefinitionFile>();
cdf->file_path = catalog_definition_file_path;
std::fstream infile(catalog_definition_file_path);
std::string line;
while (std::getline(infile, line)) {
const StringRef trimmed_line = StringRef(line).trim().trim(path_separator);
if (trimmed_line.is_empty() || trimmed_line[0] == '#') {
continue;
}
std::unique_ptr<AssetCatalog> catalog = this->parse_catalog_line(trimmed_line, cdf.get());
const bool is_catalog_id_reused_in_file = cdf->catalogs.contains(catalog->catalog_id);
/* The AssetDefinitionFile should include this catalog when writing it back to disk, even if it
* was a duplicate. */
cdf->catalogs.add_new(catalog->catalog_id, catalog.get());
if (is_catalog_id_reused_in_file) {
std::cerr << catalog_definition_file_path << ": multiple definitions of catalog "
<< catalog->catalog_id << ", using first occurrence." << std::endl;
/* Don't store 'catalog'; unique_ptr will free its memory. */
continue;
}
if (this->catalogs.contains(catalog->catalog_id)) {
// TODO(@sybren): apparently another CDF was already loaded. This is not supported yet.
std::cerr << catalog_definition_file_path << ": multiple definitions of catalog "
<< catalog->catalog_id << " in multiple files, ignoring this one." << std::endl;
/* Don't store 'catalog'; unique_ptr will free its memory. */
continue;
}
/* The AssetCatalog pointer is owned by the AssetCatalogService. */
this->catalogs.add_new(catalog->catalog_id, std::move(catalog));
}
return cdf;
}
std::unique_ptr<AssetCatalog> AssetCatalogService::parse_catalog_line(
const StringRef line, const AssetCatalogDefinitionFile *catalog_definition_file)
{
const int64_t first_space = line.find_first_of(' ');
if (first_space == StringRef::not_found) {
std::cerr << "Invalid line in " << catalog_definition_file->file_path << ": " << line
<< std::endl;
return std::unique_ptr<AssetCatalog>(nullptr);
}
const StringRef catalog_id = line.substr(0, first_space);
const StringRef catalog_path = line.substr(first_space + 1).trim().trim(path_separator);
return std::make_unique<AssetCatalog>(catalog_id, catalog_path);
}
AssetCatalogDefinitionFile::AssetCatalogDefinitionFile()
{
}
AssetCatalog::AssetCatalog()
{
}
AssetCatalog::AssetCatalog(const CatalogID &catalog_id, const CatalogPath &path)
: catalog_id(catalog_id), path(path)
{
}
} // namespace blender::bke
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