/**
 * Copyright 2018 The Nakama Authors
 *
 * Licensed under the Apache License, Version 2.0 (the "License");
 * you may not use this file except in compliance with the License.
 * You may obtain a copy of the License at
 *
 * http://www.apache.org/licenses/LICENSE-2.0
 *
 * Unless required by applicable law or agreed to in writing, software
 * distributed under the License is distributed on an "AS IS" BASIS,
 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
 * See the License for the specific language governing permissions and
 * limitations under the License.
 */

namespace Nakama
{
    using System.Runtime.Serialization;

    /// <summary>
    /// An object which represents a connected user in the server.
    /// </summary>
    /// <remarks>
    /// The server allows the same user to be connected with multiple sessions. To uniquely identify them a tuple of
    /// <c>{ user_id, session_id }</c> is used which is exposed as this object.
    /// </remarks>
    public interface IUserPresence
    {
        /// <summary>
        /// True if this presence generates stored events like persistent chat messages or notifications.
        /// </summary>
        bool Persistence { get; }

        /// <summary>
        /// The session id of the user.
        /// </summary>
        string SessionId { get; }

        /// <summary>
        /// The status of the user with the presence on the server.
        /// </summary>
        string Status { get; }

        /// <summary>
        /// The username for the user.
        /// </summary>
        string Username { get; }

        /// <summary>
        /// The id of the user.
        /// </summary>
        string UserId { get; }
    }

    /// <inheritdoc />
    internal class UserPresence : IUserPresence
    {
        [DataMember(Name = "persistence")]
        public bool Persistence { get; set; }

        [DataMember(Name = "session_id")]
        public string SessionId { get; set; }

        [DataMember(Name = "status")]
        public string Status { get; set; }

        [DataMember(Name = "username")]
        public string Username { get; set; }

        [DataMember(Name = "user_id")]
        public string UserId { get; set; }

        public override string ToString()
        {
            return $"UserPresence(Persistence={Persistence}, SessionId={SessionId}, Status={Status}, Username={Username}, UserId={UserId})";
        }
    }
}