FileCache.h

#pragma once

#include <string>
#include <unordered_map>
#include <mutex>
#include <ctime>

class FileCache
{
public:

    struct CacheEntry
    {
        // Original file
        std::string body;

        // Pre-compressed version
        std::string gzipBody;

        // Metadata
        std::string mimeType;
        std::string etag;
        std::string lastModified;

        // File information
        long long fileSize = 0;
        std::time_t modifiedTime = 0;
    };

    // Returns the complete cached entry
    static CacheEntry get(
        const std::string& path
    );

    // Remove everything from cache
    static void clear();

private:

    static std::unordered_map<
        std::string,
        CacheEntry
    > cache;

    static std::mutex mutex;
};