using System.Threading.Tasks;

namespace TINK.Model.User.Account
{
    /// <summary>Interface to manage an account store.</summary>
    public interface IStore
    {
        /// <summary>
        /// Reads mail address and password from account store.
        /// </summary>
        /// <returns></returns>
        Task<IAccount> Load();

        /// <summary>
        /// Writes mail address and password to account store.
        /// </summary>
        /// <param name="mailAndPwd"></param>
        Task Save(IAccount mailAndPwd);

        /// <summary>
        /// Deletes mail address and password from account store.
        /// </summary>
        /// <returns> Empty account instance if deleting succeeded.</returns>
        IAccount Delete(IAccount mailAndPwd);
    }
}