#include <u.h>
#include <libn.h>

static struct Flags {
    uchar a : 1;
    uchar f : 1;
    uchar p : 1;
    uchar v : 1;
    uchar r : 1;
} flag;
static char follow;

static
int
cp(char *from, char *to)
{

}

/*
 * P -> never dereference
 * L -> dereference links 
 * H -> dereference links on the first level
 */
static
void
usage(void)
{
    fputs("usage: cp [-afpv] [-[r|R] [-H | -L | -P]] source ... dest", stderr);
    exit(1);
}

int
main(int argc, char *argv[])
{
    io·Stat info;

    ARGBEGIN {
    case 'a':
        follow = 'P';
        flag.a = flag.p = flag.r = 1;
        break;
    case 'f':
        flag.f = 1;
        break;
    case 'p':
        flag.p = 1;
        break;
    case 'r':
    /* fallthrough */
    case 'R':
        flag.r = 1;
        break;
    case 'H':
    case 'L':
    case 'P':
        follow = ARGC();
        break;
    default:
        usage();
    } ARGEND;

    if (argc < 2)
        usage();

    if (!follow)
        follow = flag.r ? 'P' : 'L';

    if (argc > 2) {
        if (stat(argv[argc-1], &info) < 0)
            errorf("stat %s: %s", argv[argc-1], strerror(errno));
        if (!S_ISDIR(info.st_mode))
            errorf("%s: is not a directory", argv[argc-1]); 
    }
}