VoxelEngine/src/files/engine_paths.cpp
2024-08-06 15:59:39 +03:00

276 lines
8.6 KiB
C++

#include "engine_paths.hpp"
#include <algorithm>
#include <filesystem>
#include <sstream>
#include <stack>
#include <utility>
#include <array>
#include <typedefs.hpp>
#include <util/stringutil.hpp>
#include "WorldFiles.hpp"
/**
* @brief ENUM for accessing folder and file names
*/
enum F_F_NAME{
SCREENSHOTS_FOLDER,
CONTENT_FOLDER,
CONTROLS_FILE,
SETTINGS_FILE,
COUNT
};
/**
* @brief array for get file or folder name by enum `F_F_NAME`
*
* example:
* `std::filesystem::path settings = f_f_names[SETTINGS_FILE];`
*/
static std::array<std::string, F_F_NAME::COUNT> f_f_names{
"screenshots",
"content",
"controls.toml",
"settings.toml"
};
static std::filesystem::path toCanonic(std::filesystem::path path) {
std::stack<std::string> parts;
path = path.lexically_normal();
do {
parts.push(path.filename().u8string());
path = path.parent_path();
} while (!path.empty());
path = fs::u8path("");
while (!parts.empty()) {
const std::string part = parts.top();
parts.pop();
if (part == ".") {
continue;
}
if (part == "..") {
throw files_access_error("entry point reached");
}
path = path / std::filesystem::path(part);
}
return path;
}
void EnginePaths::prepare() {
std::filesystem::path contentFolder = userFilesFolder / std::filesystem::path(f_f_names[CONTENT_FOLDER]);
if (!fs::is_directory(contentFolder)) {
fs::create_directories(contentFolder);
}
}
std::filesystem::path EnginePaths::getUserFilesFolder() const {
return userFilesFolder;
}
std::filesystem::path EnginePaths::getResourcesFolder() const {
return resourcesFolder;
}
std::filesystem::path EnginePaths::getNewScreenshotFile(const std::string& ext) {
std::filesystem::path folder = userFilesFolder / std::filesystem::path(f_f_names[SCREENSHOTS_FOLDER]);
if (!fs::is_directory(folder)) {
fs::create_directory(folder);
}
auto t = std::time(nullptr);
auto tm = *std::localtime(&t);
const char* format = "%Y-%m-%d_%H-%M-%S";
std::stringstream ss;
ss << std::put_time(&tm, format);
std::string datetimestr = ss.str();
std::filesystem::path filename =
folder / fs::u8path("screenshot-" + datetimestr + "." + ext);
uint index = 0;
while (fs::exists(filename)) {
filename = folder / fs::u8path(
"screenshot-" + datetimestr + "-" +
std::to_string(index) + "." + ext
);
index++;
}
return filename;
}
std::filesystem::path EnginePaths::getWorldsFolder() {
return userFilesFolder / std::filesystem::path("worlds");
}
std::filesystem::path EnginePaths::getCurrentWorldFolder() {
return currentWorldFolder;
}
std::filesystem::path EnginePaths::getWorldFolderByName(const std::string& name) {
return getWorldsFolder() / std::filesystem::path(name);
}
std::filesystem::path EnginePaths::getControlsFile() {
return userFilesFolder / std::filesystem::path(f_f_names[CONTROLS_FILE]);
}
std::filesystem::path EnginePaths::getSettingsFile() {
return userFilesFolder / std::filesystem::path(f_f_names[SETTINGS_FILE]);
}
std::vector<std::filesystem::path> EnginePaths::scanForWorlds() {
std::vector<std::filesystem::path> folders;
std::filesystem::path folder = getWorldsFolder();
if (!fs::is_directory(folder)) return folders;
for (const auto& entry : fs::directory_iterator(folder)) {
if (!entry.is_directory()) {
continue;
}
const std::filesystem::path& worldFolder = entry.path();
std::filesystem::path worldFile = worldFolder / fs::u8path(WorldFiles::WORLD_FILE);
if (!fs::is_regular_file(worldFile)) {
continue;
}
folders.push_back(worldFolder);
}
std::sort(folders.begin(), folders.end(), [](std::filesystem::path a, std::filesystem::path b) {
a = a / fs::u8path(WorldFiles::WORLD_FILE);
b = b / fs::u8path(WorldFiles::WORLD_FILE);
return fs::last_write_time(a) > fs::last_write_time(b);
});
return folders;
}
void EnginePaths::setUserFilesFolder(std::filesystem::path folder) {
this->userFilesFolder = std::move(folder);
}
void EnginePaths::setResourcesFolder(std::filesystem::path folder) {
this->resourcesFolder = std::move(folder);
}
void EnginePaths::setCurrentWorldFolder(std::filesystem::path folder) {
this->currentWorldFolder = std::move(folder);
}
void EnginePaths::setContentPacks(std::vector<ContentPack>* contentPacks) {
this->contentPacks = contentPacks;
}
std::filesystem::path EnginePaths::resolve(const std::string& path, bool throwErr) {
size_t separator = path.find(':');
if (separator == std::string::npos) {
throw files_access_error("no entry point specified");
}
std::string prefix = path.substr(0, separator);
std::string filename = path.substr(separator + 1);
filename = toCanonic(fs::u8path(filename)).u8string();
if (prefix == "res" || prefix == "core") {
return resourcesFolder / fs::u8path(filename);
}
if (prefix == "user") {
return userFilesFolder / fs::u8path(filename);
}
if (prefix == "world") {
return currentWorldFolder / fs::u8path(filename);
}
if (contentPacks) {
for (auto& pack : *contentPacks) {
if (pack.id == prefix) {
return pack.folder / fs::u8path(filename);
}
}
}
if (throwErr) {
throw files_access_error("unknown entry point '" + prefix + "'");
}
return std::filesystem::path(filename);
}
ResPaths::ResPaths(std::filesystem::path mainRoot, std::vector<PathsRoot> roots)
: mainRoot(std::move(mainRoot)), roots(std::move(roots)) {
}
std::filesystem::path ResPaths::find(const std::string& filename) const {
for (int i = roots.size() - 1; i >= 0; i--) {
auto& root = roots[i];
std::filesystem::path file = root.path / fs::u8path(filename);
if (fs::exists(file)) {
return file;
}
}
return mainRoot / fs::u8path(filename);
}
std::string ResPaths::findRaw(const std::string& filename) const {
for (int i = roots.size() - 1; i >= 0; i--) {
auto& root = roots[i];
if (fs::exists(root.path / std::filesystem::path(filename))) {
return root.name + ":" + filename;
}
}
auto resDir = mainRoot;
if (fs::exists(resDir / std::filesystem::path(filename))) {
return "core:" + filename;
}
throw std::runtime_error("could not to find file " + util::quote(filename));
}
std::vector<std::string> ResPaths::listdirRaw(const std::string& folderName
) const {
std::vector<std::string> entries;
for (int i = roots.size() - 1; i >= 0; i--) {
auto& root = roots[i];
std::filesystem::path folder = root.path / fs::u8path(folderName);
if (!fs::is_directory(folder)) continue;
for (const auto& entry : fs::directory_iterator(folder)) {
auto name = entry.path().filename().u8string();
entries.emplace_back(root.name + ":" + folderName + "/" + name);
}
}
{
std::filesystem::path folder = mainRoot / fs::u8path(folderName);
if (!fs::is_directory(folder)) return entries;
for (const auto& entry : fs::directory_iterator(folder)) {
auto name = entry.path().filename().u8string();
entries.emplace_back("core:" + folderName + "/" + name);
}
}
return entries;
}
std::vector<std::filesystem::path> ResPaths::listdir(const std::string& folderName) const {
std::vector<std::filesystem::path> entries;
for (int i = roots.size() - 1; i >= 0; i--) {
auto& root = roots[i];
std::filesystem::path folder = root.path / fs::u8path(folderName);
if (!fs::is_directory(folder)) continue;
for (const auto& entry : fs::directory_iterator(folder)) {
entries.push_back(entry.path());
}
}
{
std::filesystem::path folder = mainRoot / fs::u8path(folderName);
if (!fs::is_directory(folder)) return entries;
for (const auto& entry : fs::directory_iterator(folder)) {
entries.push_back(entry.path());
}
}
return entries;
}
const std::filesystem::path& ResPaths::getMainRoot() const {
return mainRoot;
}