using System;
using System.Collections.Generic;
using System.Linq.Expressions;
using System.Threading.Tasks;
using Microsoft.AspNetCore.Http;
using Microsoft.AspNetCore.Mvc;
using Microsoft.AspNetCore.SignalR;
using xDataService.Configuration;
using xIdentityModels.Models;
using xIdentityService.Interfaces;
using xModels.Dtos;
using xWebinarService.Hubs;
using xWebinarService.Interfaces.Entities;
using xWebinarService.Models.Dtos;
using xWebinarService.Models.Entities;
using XFileDto = xFileService.Models.Dtos.XFileDto;

namespace xWebinarService.Interfaces
{
    public interface IXWebinarProvider
    {
        //
        #region Props ...
        IHubContext<XWebinarEntityHub> Hub { get; }
        IXIdentityProvider IdentityProvider { get; }
        IXWebinarRepository WebinarRepository { get; }
        IXWebinarTagProvider WebinarTagProvider { get; }
        IXWebinarFileProvider WebinarFileProvider { get; }
        XDataServiceConfiguration DataSercviceConfiguration { get; }
        IXWebinarTitleResourceProvider TitleResourceProvider { get; }
        IXWebinarSubscriberRepository WebinarSubscriberRepository { get; }
        IXWebinarDescriptionResourceProvider DescriptionResourceProvider { get; }
        #endregion

        //
        #region Tools ...
        /// <summary>
        /// Converts Specified XWebinar Entity to it's Corresponding Dto Presentation
        /// and also Fill Owner and Title/Description Resources ...
        /// </summary>
        /// <param name="model"></param>
        /// <returns></returns>
        Task<XWebinarDto> ToXWebinarDto(XWebinar model);

        /// <summary>
        /// Converts Specified WebinarSubscriber Entity to it's Dto Presentation ...
        /// </summary>
        /// <param name="model"></param>
        /// <returns></returns>
        Task<XWebinarSubscriberDto> ToXWebinarSubscriberDto(XWebinarSubscriber model);
        #endregion

        //
        #region Actions ...
        /// <summary>
        /// Create Webinar ...
        /// </summary>
        /// <param name="item"></param>
        /// <param name="tags"></param>
        /// <param name="files"></param>
        /// <param name="userInfo"></param>
        /// <param name="connectionId"></param>
        /// <returns></returns>
        Task<XWebinarDto> CreateWebinar(
            XWebinarDto item,
            IEnumerable<string> tags = null,
            IFormFileCollection files = null,
            XUserClaimsInfoDto userInfo = null,
            string connectionId = null
        );

        /// <summary>
        /// Update a Webinar  ...
        /// </summary>
        /// <param name="item"></param>
        /// <param name="userInfo"></param>
        /// <param name="connectionId"></param>
        /// <returns></returns>
        Task<XWebinarDto> UpdateWebinar(
            XWebinarDto item,
            XUserClaimsInfoDto userInfo = null,
            string connectionId = null
        );

        /// <summary>
        /// Retrieve Specified Webinar ...
        /// </summary>
        /// <param name="id"></param>
        /// <returns></returns>
        Task<XWebinarDto> GetWebinar(Guid id);

        /// <summary>
        /// Retrieve all Exists Webinars ...
        /// </summary>
        /// <returns></returns>
        Task<IEnumerable<XWebinarDto>> GetWebinars();

        /// <summary>
        /// Query Webinars ...
        /// </summary>
        /// <param name="query"></param>
        /// <returns></returns>
        Task<XQueryResult<XWebinarDto>> QueryWebinars(XQuery query);

        /// <summary>
        /// Conditional Query Webinars ...
        /// </summary>
        /// <param name="whereClause"></param>
        /// <param name="query"></param>
        /// <returns></returns>
        Task<XQueryResult<XWebinarDto>> ConditionalQueryWebinars(
            Expression<Func<XWebinarDto, bool>> whereClause,
            XQuery query
        );

        /// <summary>
        /// Query Owned Webinars ...
        /// </summary>
        /// <param name="query"></param>
        /// <returns></returns>
        Task<XQueryResult<XWebinarDto>> QueryOwnedWebinars(
            XQuery query,
            XUserClaimsInfoDto userInfo = null
        );

        /// <summary>
        /// Query Joinable Webinars ...
        /// </summary>
        /// <param name="query"></param>
        /// <returns></returns>
        Task<XQueryResult<XWebinarDto>> QueryJoinableWebinars(
            XQuery query,
            XUserClaimsInfoDto userInfo = null
        );

        /// <summary>
        /// Remove Specified Webinar ...
        /// </summary>
        /// <param name="webinarId"></param>
        /// <param name="userInfo"></param>
        /// <param name="connectionId"></param>
        /// <returns></returns>
        Task<bool> RemoveWebinar(
            Guid webinarId,
            XUserClaimsInfoDto userInfo = null,
            string connectionId = null
        );
        #endregion

        //
        #region WebinarSubscriber ...
        /// <summary>
        /// Subscribe a User to Webinar ...
        /// </summary>
        /// <param name="webinarId"></param>
        /// <param name="subscriberId"></param>
        /// <param name="connectionId"></param>
        /// <param name="userInfo"></param>
        /// <returns></returns>
        Task<bool> Subscribe(
            Guid webinarId,
            string subscriberId,
            string connectionId = null,
            XUserClaimsInfoDto userInfo = null
        );

        /// <summary>
        /// Check Specified User Subscribed on a Webinar or not ...
        /// </summary>
        /// <param name="webinarId"></param>
        /// <param name="subscriberId"></param>
        /// <param name="userInfo"></param>
        /// <returns></returns>
        Task<bool> IsSubscribed(
            Guid webinarId,
            string subscriberId,
            XUserClaimsInfoDto userInfo = null
        );

        /// <summary>
        /// Unsubscribe Specified User from a Specified Webinar ...
        /// </summary>
        /// <param name="webinarId"></param>
        /// <param name="subscriberId"></param>
        /// <param name="connectionId"></param>
        /// <param name="userInfo"></param>
        /// <returns></returns>
        Task<bool> Unsubscribe(
            Guid webinarId,
            string subscriberId,
            string connectionId = null,
            XUserClaimsInfoDto userInfo = null
        );

        /// <summary>
        /// Retrieve Specified Subscriber ...
        /// </summary>
        /// <param name="webinarId"></param>
        /// <param name="subscriberId"></param>
        /// <param name="userInfo"></param>
        /// <returns></returns>
        Task<XWebinarSubscriberDto> GetSubscriber(
            Guid webinarId,
            string subscriberId,
            XUserClaimsInfoDto userInfo = null
        );

        /// <summary>
        /// Get all Specified Webinars Subscribers ...
        /// </summary>
        /// <param name="webinarId"></param>
        /// <param name="userInfo"></param>
        /// <returns></returns>
        Task<IEnumerable<XWebinarSubscriberDto>> GetSubscribers(
            Guid webinarId,
            XUserClaimsInfoDto userInfo = null
        );

        /// <summary>
        /// Query Specified Webinar's Subscribers ...
        /// </summary>
        /// <param name="webinarId"></param>
        /// <param name="query"></param>
        /// <param name="userInfo"></param>
        /// <returns></returns>
        Task<XQueryResult<XWebinarSubscriberDto>> QuerySubscribers(
            Guid webinarId,
            XQuery query,
            XUserClaimsInfoDto userInfo = null
        );
        #endregion

        //
        #region File Actions ...
        /// <summary>
        /// Upload Files ...
        /// </summary>
        /// <param name="forProvidedId"></param>
        /// <param name="files"></param>
        /// <param name="userInfo"></param>
        /// <param name="connectionId"></param>
        /// <returns></returns>
        Task<IEnumerable<XFileDto>> UploadFiles(
            Guid id,
            IFormFileCollection files,
            XUserClaimsInfoDto userInfo = null,
            string connectionId = null
        );

        /// <summary>
        /// Remove Specified Files ...
        /// </summary>
        /// <param name="forProvidedId"></param>
        /// <param name="ids"></param>
        /// <param name="userInfo"></param>
        /// <param name="connectionId"></param>
        /// <returns></returns>
        Task<IEnumerable<Guid>> RemoveFiles(
            Guid id,
            string ids = null,
            XUserClaimsInfoDto userInfo = null,
            string connectionId = null
        );

        /// <summary>
        /// Get Webinar Files ...
        /// </summary>
        /// <param name="id"></param>
        /// <param name="userInfo"></param>
        /// <returns></returns>
        Task<IEnumerable<XFileDto>> GetFiles(
            Guid id,
            XUserClaimsInfoDto userInfo = null
        );
        
        /// <summary>
        /// Stream Specified File ...
        /// </summary>
        /// <param name="id"></param>
        /// <returns></returns>
        Task<FileStreamResult> StreamFile(
            Guid id,
            Guid fileId
        );        
        
        /// <summary>
        /// Stream Specified File ...
        /// </summary>
        /// <param name="id"></param>
        /// <returns></returns>
        Task<PhysicalFileResult> DownloadFile(
            Guid id,
            Guid fileId
        );        
        #endregion

        //
        #region Tags Actions ...
        /// <summary>
        /// Attach Tag to Specified File ...
        /// </summary>
        /// <param name="tag"></param>
        /// <param name="id"></param>
        /// <param name="userInfo"></param>
        /// <param name="connectionId"></param>
        /// <param name="forceAttachToFiles"></param>
        /// <returns></returns>
        Task AttachTag(
            string tag,
            Guid id,
            XUserClaimsInfoDto userInfo = null,
            string connectionId = null,
            bool forceAttachToFiles = true
        );

        /// <summary>
        /// Detach Tag fro Specified File ...
        /// </summary>
        /// <param name="tag"></param>
        /// <param name="id"></param>
        /// <param name="userInfo"></param>
        /// <param name="connectionId"></param>
        /// <param name="forceAttachToFiles"></param>
        /// <returns></returns>
        Task DetachTag(
            string tag,
            Guid id,
            XUserClaimsInfoDto userInfo = null,
            string connectionId = null,
            bool forceDetachFromFiles = true
        );

        /// <summary>
        /// Attach Tags for Specified File ...
        /// </summary>
        /// <param name="tags"></param>
        /// <param name="id"></param>
        /// <param name="userInfo"></param>
        /// <param name="connectionId"></param>
        /// <param name="forceAttachToFiles"></param>
        /// <returns></returns>
        Task AttachTags(
            IEnumerable<string> tags,
            Guid id,
            XUserClaimsInfoDto userInfo = null,
            string connectionId = null,
            bool forceAttachToFiles = true
        );

        /// <summary>
        /// Detach Tags for Specified File ...
        /// </summary>
        /// <param name="tags"></param>
        /// <param name="id"></param>
        /// <param name="userInfo"></param>
        /// <param name="connectionId"></param>
        /// <param name="forceDetachFromFiles"></param>
        /// <returns></returns>
        Task DetachTags(
            IEnumerable<string> tags,
            Guid id,
            XUserClaimsInfoDto userInfo = null,
            string connectionId = null,
            bool forceDetachFromFiles = true
        );

        /// <summary>
        /// Detach all Attached Tags for Specified File ...
        /// </summary>
        /// <param name="id"></param>
        /// <param name="connectionId"></param>
        /// <param name="forceDetachFromFiles"></param>
        /// <returns></returns>
        Task DetachTags(
            Guid id,
            XUserClaimsInfoDto userInfo = null,
            string connectionId = null,
            bool forceDetachFromFiles = true
        );

        /// <summary>
        /// Retrieve Specified Webinar's Tags ...
        /// </summary>
        /// <param name="id"></param>
        /// <param name="userInfo"></param>
        /// <returns></returns>
        Task<IEnumerable<string>> GetTags(
            Guid id,
            XUserClaimsInfoDto userInfo = null
        );
        #endregion
    }
}