#include "filesys.h"

#include <SDL3/SDL.h>
#include <cerrno>
#include <cstdio>
#include <dirent.h>
#include <sys/stat.h>

// Missing from Switch SDL3 implementation
#ifndef S_ISREG
#define S_ISREG(m) (((m) & _S_IFMT) == _S_IFREG)
#endif

// Uses core of SDL's SDL_GetPathInfo but handles null 'info'.
bool NX_GetPathInfo(const char* path, SDL_PathInfo* info)
{
	SDL_PathInfo tmp_info;
	struct stat statbuf;
	const int rc = stat(path, &statbuf);

	if (rc < 0) {
		return SDL_SetError("Can't stat: %s", strerror(errno));
	}
	else if (S_ISREG(statbuf.st_mode)) {
		tmp_info.type = SDL_PATHTYPE_FILE;
		tmp_info.size = (Uint64) statbuf.st_size;
	}
	else if (S_ISDIR(statbuf.st_mode)) {
		tmp_info.type = SDL_PATHTYPE_DIRECTORY;
		tmp_info.size = 0;
	}
	else {
		tmp_info.type = SDL_PATHTYPE_OTHER;
		tmp_info.size = (Uint64) statbuf.st_size;
	}

	tmp_info.create_time = (SDL_Time) SDL_SECONDS_TO_NS(statbuf.st_ctime);
	tmp_info.modify_time = (SDL_Time) SDL_SECONDS_TO_NS(statbuf.st_mtime);
	tmp_info.access_time = (SDL_Time) SDL_SECONDS_TO_NS(statbuf.st_atime);

	if (info) {
		*info = tmp_info;
	}

	return true;
}