#include "internal.h"

bool dir_exists(cstr path){
    if(path[0]=='.'){
        if(path[1]==0 || (path[1]==path_sep && path[1]==0)) 
            return true; // dir . or ./ always exists
        // else if(path[1]=='.' && path[2]==path_sep)
        //TODO path_resolve because windows doesnt recognize .\ pattern
    }
#if TLIBC_FS_USE_WINDOWS_H
    DWORD dwAttrib = GetFileAttributes(path);
    return (bool)(
        (dwAttrib != INVALID_FILE_ATTRIBUTES) && // file exists
        (dwAttrib & FILE_ATTRIBUTE_DIRECTORY)); // file is a directory
#else
    struct stat stats;
    i32 rez=stat(path, &stats);
    return (bool)(
        (rez!=-1) && // file exists
        (S_ISDIR(stats.st_mode))); // file is a directory
#endif
}

Result(bool) dir_create(cstr path){
    Deferral(4);
    if (dir_exists(path)){
        Return RESULT_VALUE(i, false);
    }
    
    char* parentDir= str_copy(path_dirname(str_from_cstr((void*)path))).data;
    Defer(free(parentDir));
    try_void(dir_create(parentDir));

#if TLIBC_FS_USE_WINDOWS_H
    if(!CreateDirectory(path, NULL))
#else
    if(mkdir(path, 0777) == -1)
#endif
    {
        char* errno_s = strerror_malloc(errno);
        ResultVar(void) err = RESULT_ERROR_FMT(
            "Can't create dicectory '%s': %s",
            path, errno_s);
        free(errno_s);
        Return err;
    }

    Return RESULT_VALUE(i, true);
}