obs-StreamFX/source/configuration.cpp

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/*
* Modern effects for a modern Streamer
* Copyright (C) 2020 Michael Fabian Dirks
*
* 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
*/
#include "configuration.hpp"
#include "obs/obs-tools.hpp"
#include "plugin.hpp"
constexpr std::string_view version_tag_name = "Version";
constexpr std::string_view path_backup_ext = ".bk";
streamfx::configuration::~configuration()
{
// Update version tag.
obs_data_set_int(_data.get(), version_tag_name.data(), STREAMFX_VERSION);
try {
if (_config_path.has_parent_path()) {
std::filesystem::create_directories(_config_path.parent_path());
}
if (!obs_data_save_json_safe(_data.get(), _config_path.u8string().c_str(), ".tmp", path_backup_ext.data())) {
throw std::exception();
}
} catch (std::exception const& ex) {
DLOG_ERROR("Failed to save configuration: %s", ex.what());
}
}
streamfx::configuration::configuration() : _data(), _config_path()
{
// Retrieve global configuration path.
_config_path = streamfx::config_file_path("config.json");
try {
if (!std::filesystem::exists(_config_path) || !std::filesystem::is_regular_file(_config_path)) {
throw std::runtime_error("Configuration does not exist.");
} else {
obs_data_t* data =
obs_data_create_from_json_file_safe(_config_path.u8string().c_str(), path_backup_ext.data());
if (!data) {
throw std::runtime_error("Failed to load configuration from disk.");
} else {
_data = std::shared_ptr<obs_data_t>(data, obs::obs_data_deleter);
}
}
} catch (...) {
_data = std::shared_ptr<obs_data_t>(obs_data_create(), obs::obs_data_deleter);
}
}
std::shared_ptr<obs_data_t> streamfx::configuration::get()
{
obs_data_addref(_data.get());
return std::shared_ptr<obs_data_t>(_data.get(), obs::obs_data_deleter);
}
uint64_t streamfx::configuration::version()
{
return static_cast<uint64_t>(obs_data_get_int(_data.get(), version_tag_name.data()));
}
bool streamfx::configuration::is_different_version()
{
return (version() & STREAMFX_MASK_COMPAT) != (STREAMFX_VERSION & STREAMFX_MASK_COMPAT);
}
static std::shared_ptr<streamfx::configuration> _instance = nullptr;
void streamfx::configuration::initialize()
{
if (!_instance)
_instance = std::make_shared<streamfx::configuration>();
}
void streamfx::configuration::finalize()
{
_instance.reset();
}
std::shared_ptr<streamfx::configuration> streamfx::configuration::instance()
{
return _instance;
}