#include <libcbd.h>

#include <libdevmapper.h>

#include <cbdutil.h>

int
cbd_tune(const char* dev,
         tristate_t zero_detect, uint level, bool repack)
{
    int fd;
    uint8_t header_buf[SECTOR_SIZE];
    struct cbd_header header;

    fd = open(dev, O_RDWR);
    if (fd < 0) {
        error("Cannot open device");
    }
    pblk_read(fd, SECTOR_SIZE, 0, 1, header_buf);
    cbd_header_get(header_buf, &header);
    cbd_check_header(&header);

    if (zero_detect != t_none) {
        if (zero_detect == t_true) {
            header.params.flags |= CBD_FLAG_DETECT_ZEROS;
        }
        else {
            header.params.flags &= ~CBD_FLAG_DETECT_ZEROS;
        }
    }
    if (level) {
        cbd_compression_level_put(&header.params, level);
    }
    cbd_header_put(header_buf, &header);
    pblk_write(fd, SECTOR_SIZE, 0, 1, header_buf);

    if (repack) {
        error("repack not supported yet\n");
    }

    return 0;
}