Meshtastic-Apple/MeshtasticClient/Helpers/Extensions.swift

import Foundation

extension Data
{
    var hexDescription: String
    {
        return reduce("") {$0 + String(format: "%02x", $1)}
    }
}


extension String
{

    /// Create `Data` from hexadecimal string representation
    ///
    /// This creates a `Data` object from hex string. Note, if the string has any spaces or non-hex characters (e.g. starts with '<' and with a '>'), those are ignored and only hex characters are processed.
    ///
    /// - returns: Data represented by this hexadecimal string.

    var hexadecimal: Data?
    {
        var data = Data(capacity: count / 2)

        let regex = try! NSRegularExpression(pattern: "[0-9a-f]{1,2}", options: .caseInsensitive)
        regex.enumerateMatches(in: self, range: NSRange(startIndex..., in: self)) { match, _, _ in
            let byteString = (self as NSString).substring(with: match!.range)
            let num = UInt8(byteString, radix: 16)!
            data.append(num)
        }

        guard data.count > 0 else { return nil }

        return data
    }

}


extension Date
{
    static var currentTimeStamp: Int64
    {
        return Int64(Date().timeIntervalSince1970 * 1000)
    }
}