#include <errno.h>
#include <fcntl.h>
#include <poll.h>
#include <stdio.h>
#include <string.h>
#include <stdlib.h>
#include <unistd.h>
#include <sndio.h>
#include "tools.h"

struct sio_par par;
struct sio_cap cap;

void
pr_enc(struct sio_enc *enc)
{
        fprintf(stderr, "%s%d", enc->sig ? "s" : "u", enc->bits);
        if (enc->bps > 1)
                fprintf(stderr, "%s", enc->le ? "le" : "be");
        if (enc->bps != SIO_BPS(enc->bits))
                fprintf(stderr, "%d%s", enc->bps, enc->msb ? "msb" : "lsb");
}

void
cap_pr(struct sio_cap *cap)
{
        unsigned n, i;

        for (n = 0; n < cap->nconf; n++) {
                fprintf(stderr, "config %d\n", n);
                fprintf(stderr, "\tenc:");
                for (i = 0; i < SIO_NENC; i++) {
                        if (cap->confs[n].enc & (1 << i)) {
                                fprintf(stderr, " ");
                                pr_enc(&cap->enc[i]);
                        }
                }
                fprintf(stderr, "\n\tpchan:");
                for (i = 0; i < SIO_NCHAN; i++) {
                        if (cap->confs[n].pchan & (1 << i))
                                fprintf(stderr, " %d", cap->pchan[i]);
                }
                fprintf(stderr, "\n\trchan:");
                for (i = 0; i < SIO_NCHAN; i++) {
                        if (cap->confs[n].rchan & (1 << i))
                                fprintf(stderr, " %d", cap->rchan[i]);
                }
                fprintf(stderr, "\n\trate:");
                for (i = 0; i < SIO_NRATE; i++) {
                        if (cap->confs[n].rate & (1 << i))
                                fprintf(stderr, " %d", cap->rate[i]);
                }
                fprintf(stderr, "\n");
        }
}

void
usage(void) {
        fprintf(stderr, "usage: cap [-pr]\n");
}

int
main(int argc, char **argv) {
        int ch;
        unsigned mode = SIO_PLAY | SIO_REC;
        struct sio_hdl *hdl;

        while ((ch = getopt(argc, argv, "pr")) != -1) {
                switch(ch) {
                case 'p':
                        mode &= ~SIO_REC;
                        break;
                case 'r':
                        mode &= ~SIO_PLAY;
                        break;
                default:
                        usage();
                        exit(1);
                        break;
                }
        }
        if (mode == 0) {
                fprintf(stderr, "-p and -r flags are mutually exclusive\n");
                exit(1);
        }
        hdl = sio_open(NULL, mode, 0);
        if (hdl == NULL) {
                fprintf(stderr, "sio_open() failed\n");
                exit(1);
        }
        if (!sio_getcap(hdl, &cap)) {
                fprintf(stderr, "sio_getcap() failed\n");
                exit(1);
        }
        cap_pr(&cap);
        sio_close(hdl);
        return 0;
}