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#include "CacheManager.h"
#include <filesystem>
#include <fstream>
#include <iostream>
#include <ctime>
CacheManager::CacheManager(const char* cache_path) : CacheManager(std::string(cache_path)) { }
CacheManager::CacheManager(std::string cache_path) {
this->cache_path = cache_path;
this->verify_cache();
}
CacheManager::~CacheManager() {
for (std::fstream* file : this->files) {
if (file != nullptr) {
file->close();
delete file;
file = nullptr;
}
}
}
void CacheManager::verify_cache() {
if (!std::filesystem::is_directory(this->cache_path)) this->init_cache();
this->update_cache();
}
void CacheManager::init_cache() {
std::filesystem::create_directory(this->cache_path);
this->update_cache();
}
void CacheManager::update_cache() {
std::fstream& date = *cache_get("date");
this->age = std::time(nullptr);
date << this->age;
date.close();
}
std::fstream* CacheManager::cache_get(std::string filename) { return cache_get(filename.c_str()); }
std::fstream* CacheManager::cache_get(const char* filename) {
std::filesystem::path fixed_path = prefix_cache_path(filename); // fix duplicate slashes and add prefix
std::filesystem::create_directories(fixed_path.parent_path()); // make sure folder exists
if (!std::filesystem::exists(fixed_path))
std::fstream(fixed_path, std::ios::trunc | std::ios::out).close(); // touch file
std::fstream* file = new std::fstream(fixed_path.c_str(), std::ios::out | std::ios::in); // open file
this->files.push_back(file); // add file pointer (for closing all files on exit)
return file;
}
bool CacheManager::cache_exists(std::string filename) { return cache_exists(filename.c_str()); }
bool CacheManager::cache_exists(const char* filename) {
return std::filesystem::exists(prefix_cache_path(filename));
}
std::string CacheManager::prefix_cache_path(const char* filename) {
return this->cache_path + "/" + std::string(filename);
}
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