sliding-puzzle/filepath_util.h

83 lines
2.9 KiB
C++

#pragma once
#include <sstream>
#include <iomanip>
#include <numeric>
#include <algorithm>
#include <vector>
#include <set>
#include <filesystem>
#include <iostream>
namespace filepath
{
std::tuple<std::filesystem::path, std::filesystem::file_status> getFileInfo(const std::filesystem::directory_entry& entry)
{
const auto file_status (std::filesystem::status(entry));
return {entry.path(), file_status};
}
bool endsWith(const std::string& string, const std::string& ending)
{
if (ending.size() > string.size())
return false;
return std::equal(ending.rbegin(), ending.rend(), string.rbegin());
}
std::tuple<int, std::string> parsePath(const std::string &argv)
{
std::filesystem::path path(argv);
if (!std::filesystem::exists(path))
{
std::cout << "Path " << path << " does not exist.\n";
return {EXIT_FAILURE, {}};
}
// Maybe user chose a specific image, not a folder
if (std::filesystem::is_regular_file(path))
return {EXIT_SUCCESS, path.string()};
// TO DO : I KNOW THIS PART IS BAD! I have never worked with ::filesystem before,
// So... it is a folder i will rewrite it when the prject works and is done
// Creating a vector of everything in the given directory
std::vector<std::tuple<std::filesystem::path, std::filesystem::file_status>> dir_items;
std::transform(std::filesystem::directory_iterator(path), {}, std::back_inserter(dir_items), filepath::getFileInfo);
std::set<std::string> allowed_ext = {".bmp", ".dds", ".jpg", ".png", ".tga", ".psd"};
// Now getting images
std::vector<std::string> dir_image_items;
for (const auto &[local_path, status] : dir_items)
{
const std::string str_path = local_path.string();
if (std::filesystem::is_regular_file(local_path) &&
std::any_of(allowed_ext.begin(), allowed_ext.end(), [&](const std::string& e) { return filepath::endsWith(str_path, e); }))
{
dir_image_items.emplace_back(str_path);
}
}
if (dir_image_items.empty())
{
std::cout << "No images found at " << path << "\n--help for more information.\n";
return {EXIT_FAILURE, {}};
}
std::cout << "Loading random image file from " << path << "\n";
srand(static_cast<unsigned int>(time(nullptr)));
return {EXIT_SUCCESS, dir_image_items[rand() & (dir_image_items.size() - 1)]};
}
std::vector<std::string> split(const std::string &s, char delim)
{
std::vector<std::string> result;
std::stringstream ss (s);
std::string item;
while (getline(ss, item, delim))
result.push_back(item);
return result;
}
}