using MailKit;
using MailKit.Net.Imap;
using Serilog;

namespace Wino.Core.Integration
{
    /// <summary>
    /// Extended class for ImapClient that is used in Wino.
    /// </summary>
    internal class WinoImapClient : ImapClient
    {
        /// <summary>
        /// Gets or internally sets whether the QRESYNC extension is enabled.
        /// It is set by ImapClientPool immidiately after the authentication.
        /// </summary>
        public bool IsQResyncEnabled { get; internal set; }

        public WinoImapClient()
        {
            HookEvents();
        }

        public WinoImapClient(IProtocolLogger protocolLogger) : base(protocolLogger)
        {
            HookEvents();
        }

        private void HookEvents()
        {
            Disconnected += ClientDisconnected;
        }

        private void UnhookEvents()
        {
            Disconnected -= ClientDisconnected;
        }

        private void ClientDisconnected(object sender, DisconnectedEventArgs e)
        {
            if (e.IsRequested)
            {
                Log.Debug("Imap client is disconnected on request.");
            }
            else
            {
                Log.Debug("Imap client connection is dropped by server.");
            }
        }

        protected override void Dispose(bool disposing)
        {
            base.Dispose(disposing);

            if (disposing)
            {
                UnhookEvents();
            }
        }
    }
}