/*
 * Copyright 2008 Mika Lindqvist, monni1995_at_gmail.com
 * All rights reserved. Distributed under the terms of the MIT License.
 */
#ifndef _LINKKEY_UTILS_H
#define _LINKKEY_UTILS_H

#include <stdio.h>

#include <bluetooth/bluetooth.h>


namespace Bluetooth {

class LinkKeyUtils {
public:
        static bool Compare(linkkey_t* lk1, linkkey_t* lk2)
        {
                return memcmp(lk1, lk2, sizeof(linkkey_t)) == 0;
        }

        static linkkey_t NullKey()
        {
                return (linkkey_t){{0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0}};
        }
        
        static BString ToString(const linkkey_t lk) 
        {
                BString str;

                str.SetToFormat("%2.2X:%2.2X:%2.2X:%2.2X:%2.2X:%2.2X:%2.2X:%2.2X:"
                                "%2.2X:%2.2X:%2.2X:%2.2X:%2.2X:%2.2X:%2.2X:%2.2X", 
                                lk.l[0], lk.l[1], lk.l[2], lk.l[3], lk.l[4], lk.l[5],
                                lk.l[6], lk.l[7], lk.l[8], lk.l[9], lk.l[10], lk.l[11],
                                lk.l[12], lk.l[13], lk.l[14], lk.l[15]);

                return str;
        }

        static linkkey_t FromString(const char *lkstr)
        {
                if (lkstr != NULL) {
                        uint8 l0, l1, l2, l3, l4, l5, l6, l7, l8, l9, l10, l11, l12, l13, l14, l15;
                        size_t count = sscanf(lkstr, "%hhx:%hhx:%hhx:%hhx:%hhx:%hhx:%hhx:%hhx:"
                                                        "%hhx:%hhx:%hhx:%hhx:%hhx:%hhx:%hhx:%hhxs", &l0, &l1, &l2, &l3, 
                                                        &l4, &l5, &l6, &l7, &l8, &l9, &l10, &l11, &l12, &l13,
                                                        &l14, &l15);

                        if (count == 16) {
                                return (linkkey_t){{l0, l1, l2, l3, l4, l5, l6, l7, l8,
                                        l9, l10, l11, l12, l13, l14, l15}};
                        }
                }

                return NullKey();
        } 
};

}

#ifndef _BT_USE_EXPLICIT_NAMESPACE
using Bluetooth::LinkKeyUtils;
#endif

#endif // _LINKKEY_UTILS_H