using Microsoft.AspNetCore.DataProtection;
using Microsoft.Extensions.DependencyInjection;
using System;
using System.Collections.Generic;
using System.Linq;
using System.Threading.Tasks;

namespace Blog3000.Server.Utils
{
    public class DataProtect
    {
        private static DataProtect _static;

        public static DataProtect Static
        {
            get
            {
                if (_static == null)
                {
                    var serviceCollection = new ServiceCollection();
                    serviceCollection.AddDataProtection();
                    var services = serviceCollection.BuildServiceProvider();

                    // create an instance of MyClass using the service provider
                    _static = ActivatorUtilities.CreateInstance<DataProtect>(services);

                }
                return _static;
            }
        }

        private readonly IDataProtector protector;
        private readonly IDataProtectionProvider provider;

        public DataProtect(IDataProtectionProvider provider)
        {
            this.provider = provider;
            this.protector = provider.CreateProtector(this.GetType().FullName + "$GLOBAL");
        }

        public string Protect(string value)
        {
            return protector.Protect(value);                        
        }

        public string Unprotect(string pv)
        {
            var r = protector.Unprotect(pv);
            return r;
        }
    }
}