using System;
using System.Text.RegularExpressions;

namespace TINK.Model.Connector
{
    public static class TextToLockItTypeHelper
    {
        /// <summary> Lock id which representing a non valid id. </summary>
        public const int INVALIDLOCKID = 0;

        /// <summary> Lock GUID which representing a non valid id. </summary>
        public readonly static Guid INVALIDLOCKGUID = new Guid();
        
        /// <summary> First part of advertisement name.</summary>
        public static string ISHAREITADVERTISMENTTITLE = "ISHAREIT";

        /// <summary> Gets the ID part from advertisment name. </summary>
        /// <remarks> Advertisement name is made up of name plus separator (+ or -) and a ID</remarks>
        /// <param name="advertisementName">Advertisment name to extract info from.</param>
        /// <returns>From information.</returns>
        public static int GetBluetoothLockId(this string advertisementName)
        {
            var name = advertisementName?.ToUpper();
            if (string.IsNullOrEmpty(name))
                return INVALIDLOCKID;

            return int.TryParse(Regex.Replace(advertisementName, $"{ISHAREITADVERTISMENTTITLE}[\\-,\\+ ]", ""), out int lockId)
                ? lockId
                : INVALIDLOCKID;
        }
    }
}