using System.Collections.Generic;
using System.Threading;
using System.Threading.Tasks;
using Microsoft.AspNetCore.SignalR;
using Microsoft.Extensions.Logging;
using xCommons.Extensions;
using xModels.Base;
using xPushService.Constants;
using xPushService.Interfaces;

namespace xPushService.Base
{
    public abstract class XBaseEntityHub<TEntity, TKey> : XBaseHub, IXBaseEntityHub<TEntity, TKey>
    where TEntity : XBaseEntity<TKey>
    {
        //
        #region Constructor ...
        protected XBaseEntityHub(ILogger<XBaseHub> logger) : base(logger)
        { }
        #endregion

        //
        #region Actions ...
        /// <summary>
        /// Notify a New Entity added ...
        /// </summary>
        /// <param name="entity"></param>
        /// <param name="cancellationToken"></param>
        /// <returns></returns>
        public async Task Add(
            TEntity entity,
            CancellationToken cancellationToken = default
        )
        {
            //
            var connectionId = Context.ConnectionId;
            if (!connectionId.IsNullOrEmpty())
            {
                //
                await Clients
                    .AllExcept(connectionId)
                    .SendAsync(
                        XBaseEntityHubAction.Add.GetStringValue(),
                        entity.ToJSON(camelCase: true),
                        connectionId,
                        cancellationToken
                    );
            }
        }

        /// <summary>
        /// Notify a New Entity added ...
        /// </summary>
        /// <param name="entity"></param>
        /// <param name="cancellationToken"></param>
        /// <returns></returns>
        public async Task AddOrUpdate(
            TEntity entity,
            CancellationToken cancellationToken = default
        )
        {
            //
            var connectionId = Context.ConnectionId;
            if (!connectionId.IsNullOrEmpty())
            {
                //
                await Clients
                    .AllExcept(connectionId)
                    .SendAsync(
                        XBaseEntityHubAction.AddOrUpdate.GetStringValue(),
                        entity.ToJSON(camelCase: true),
                        connectionId,
                        cancellationToken
                    );
            }
        }

        /// <summary>
        /// Notify Add Many Entities ...
        /// </summary>
        /// <param name="entities"></param>
        /// <param name="cancellationToken"></param>
        /// <returns></returns>
        public async Task AddMany(
            IEnumerable<TEntity> entities,
            CancellationToken cancellationToken = default
        )
        {
            //
            var connectionId = Context.ConnectionId;
            if (!connectionId.IsNullOrEmpty())
            {
                //
                await Clients
                    .AllExcept(connectionId)
                    .SendAsync(
                        XBaseEntityHubAction.AddOrUpdate.GetStringValue(),
                        entities.ToJSON(camelCase: true),
                        connectionId,
                        cancellationToken
                    );
            }
        }

        /// <summary>
        /// Notify an Entity Deleted ...
        /// </summary>
        /// <param name="entity"></param>
        /// <param name="cancellationToken"></param>
        /// <returns></returns>
        public async Task Delete(
            TEntity entity,
            CancellationToken cancellationToken = default
        )
        {
            //
            var connectionId = Context.ConnectionId;
            if (!connectionId.IsNullOrEmpty())
            {
                //
                await Clients
                    .AllExcept(connectionId)
                    .SendAsync(
                        XBaseEntityHubAction.Delete.GetStringValue(),
                        entity.ToJSON(camelCase: true),
                        connectionId,
                        cancellationToken
                    );
            }
        }

        /// <summary>
        /// Notify Delete Many Entities ...
        /// </summary>
        /// <param name="entities"></param>
        /// <param name="cancellationToken"></param>
        /// <returns></returns>
        public async Task DeleteMany(
            IEnumerable<TEntity> entities,
            CancellationToken cancellationToken = default
        )
        {
            //
            var connectionId = Context.ConnectionId;
            if (!connectionId.IsNullOrEmpty())
            {
                //
                await Clients
                    .AllExcept(connectionId)
                    .SendAsync(
                        XBaseEntityHubAction.DeleteMany.GetStringValue(),
                        entities.ToJSON(camelCase: true),
                        connectionId,
                        cancellationToken
                    );
            }
        }

        /// <summary>
        /// Notify an Entity Updated ...
        /// </summary>
        /// <param name="entity"></param>
        /// <param name="cancellationToken"></param>
        /// <returns></returns>
        public async Task Update(
            TEntity entity,
            CancellationToken cancellationToken = default
        )
        {
            //
            var connectionId = Context.ConnectionId;
            if (!connectionId.IsNullOrEmpty())
            {
                //
                await Clients
                    .AllExcept(connectionId)
                    .SendAsync(
                        XBaseEntityHubAction.Update.GetStringValue(),
                        entity.ToJSON(camelCase: true),
                        connectionId,
                        cancellationToken
                    );
            }
        }

        /// <summary>
        /// Notify Update Many Entities ...
        /// </summary>
        /// <param name="entities"></param>
        /// <param name="cancellationToken"></param>
        /// <returns></returns>
        public async Task UpdateMany(
            IEnumerable<TEntity> entities,
            CancellationToken cancellationToken = default
        )
        {
            //
            var connectionId = Context.ConnectionId;
            if (!connectionId.IsNullOrEmpty())
            {
                //
                await Clients
                    .AllExcept(connectionId)
                    .SendAsync(
                        XBaseEntityHubAction.UpdateMany.GetStringValue(),
                        entities.ToJSON(camelCase: true),
                        connectionId,
                        cancellationToken
                    );
            }
        }
        #endregion
    }
}