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);
	}
}