sumatube/SumaTube.Domain/ValueObjects/Phone.cs

using BaseDomain;
using System.Text.RegularExpressions;

namespace SumaTube.Domain
{
    public class Phone : AValueObject
    {
        public string Value { get; set; }

        public Phone(string phone) 
        {
            this.IsPhoneValid(this.Value);
            Value = phone;
        }

        public override bool GetValidationExpression()
        {
            return this.IsPhoneValid(this.Value);
        }

        public bool IsPhoneValid(string phone) 
        {
            var pattern = "^\\s*(\\d{2}|\\d{0})[-. ]?(\\d{5}|\\d{4})[-. ]?(\\d{4})[-. ]?\\s*$";
            return this.IsValid = Regex.IsMatch(Value, pattern);
        }

        protected override IEnumerable<object> GetEqualityComponents()
        {
            yield return this.Value;
        }
        public static implicit operator string(Phone name) => name.Value;
        public static explicit operator Phone(string phone) => new Phone(phone);
    }
}