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 xFileService.Hubs;
using xFileService.Interfaces.Entities;
using xFileService.Models.Dtos;
using xFileService.Models.Entities;
using xIdentityModels.Models;
using xIdentityService.Interfaces;
using xModels.Dtos;
using xStorageService.Interfaces;
using XFileDto = xFileService.Models.Dtos.XFileDto;

namespace xFileService.Interfaces
{
    public interface IXFileProvider
    {
        //
        #region Props ...
        IHubContext<XFileEntityHub> Hub { get; }
        IXFileRepository FileRepository { get; }
        IXStorageProvider StorageProvider { get; }
        IXIdentityProvider IdentityProvider { get; }
        XDataServiceConfiguration DataSercviceConfiguration { get; }
        #endregion

        //
        #region Tools ...
        /// <summary>
        /// Stream Specified File ...
        /// </summary>
        /// <param name="id"></param>
        /// <returns></returns>
        Task<FileStreamResult> Stream(Guid id);

        /// <summary>
        /// Stream Specified File ...
        /// </summary>
        /// <param name="fileName"></param>
        /// <returns></returns>
        Task<FileStreamResult> Stream(string fileName);

        /// <summary>
        /// Download Specified File ...
        /// </summary>
        /// <param name="id"></param>
        /// <returns></returns>
        Task<PhysicalFileResult> Download(Guid id);

        /// <summary>
        /// Download Specified File ...
        /// </summary>
        /// <param name="fileName"></param>
        /// <returns></returns>
        Task<PhysicalFileResult> Download(string fileName);

        /// <summary>
        /// Upload Files ...
        /// </summary>
        /// <param name="files"></param>
        /// <param name="userInfo"></param>
        /// <returns></returns>
        Task<IEnumerable<XFileDto>> Upload(
            IFormFileCollection files,
            XUserClaimsInfoDto userInfo = null
        );

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

        /// <summary>
        /// Retrieve Specified File Streaming Info ...
        /// </summary>
        /// <param name="id"></param>
        /// <returns></returns>
        Task<XFileStreamDescriptorDto> GetFileDescriptor(Guid id);

        /// <summary>
        /// Retrieve Specified File Streaming Info ...
        /// </summary>
        /// <param name="fileName"></param>
        /// <returns></returns>
        Task<XFileStreamDescriptorDto> GetFileDescriptor(string fileName);
        #endregion

        //
        #region Data Model ...
        /// <summary>
        /// Get Specified File Model ...
        /// </summary>
        /// <param name="id"></param>
        /// <param name="ignoreSoftDeleteds"></param>
        /// <returns></returns>
        Task<XFileDto> Get(
            Guid id
        );

        /// <summary>
        /// Get All Exists File Models ...
        /// </summary>
        /// <param name="ignoreSoftDeleteds"></param>
        /// <returns></returns>
        Task<IEnumerable<XFileDto>> GetAll();

        /// <summary>
        /// find an Entity by providing a Conditional Expression ...
        /// </summary>
        /// <param name="whereClause"></param>
        Task<XFileDto> FindOne(Expression<Func<XFile, bool>> whereClause);

        /// <summary>
        /// find a collection of Entities by proving a Conditional Expression ...
        /// </summary>
        /// <param name="whereClause"></param>
        /// <returns></returns>
        Task<IEnumerable<XFileDto>> FindMany(
            Expression<Func<XFile, bool>> whereClause
        );

        /// <summary>
        /// retrieve Entities based on XQuery Pagination structure ...
        /// </summary>
        /// <param name="query"></param>
        /// <returns></returns>
        Task<XQueryResult<XFileDto>> Query(
            XQuery query
        );

        /// <summary>
        /// retrieve Entities based on XQuery Pagination structure by providing a Conditional Expression ...
        /// </summary>
        /// <param name="whereClause"></param>
        /// <param name="query"></param>
        /// <returns></returns>
        Task<XQueryResult<XFileDto>> ConditionalQuery(
            Expression<Func<XFile, bool>> whereClause,
            XQuery query
        );

        /// <summary>
        /// Update an Entity values ...
        /// </summary>
        /// <param name="id"></param>
        /// <param name="item"></param>
        /// <param name="userInfo"></param>
        /// <returns></returns>
        Task<XFileDto> Update(
            Guid id,
            XFileDto item,
            XUserClaimsInfoDto userInfo = null
        );

        /// <summary>
        /// remove an Entity ...
        /// </summary>
        /// <param name="item"></param>
        /// <param name="userInfo"></param>
        /// <returns></returns>
        Task<XFileDto> Remove(
            Guid id,
            XUserClaimsInfoDto userInfo = null
        );

        /// <summary>
        /// count all exists Entities ...
        /// </summary>
        /// <returns></returns>
        Task<int> Count();

        /// <summary>
        /// Check an Entity exists or not ...
        /// </summary>
        /// <param name="id"></param>
        /// <returns></returns>
        Task<bool> IsExists(
            Guid id
        );
        #endregion

        //
        #region Helpers ...
        /// <summary>
        /// Converts an Entity to Dto ...
        /// </summary>
        /// <param name="model"></param>
        /// <returns></returns>
        Task<XFileDto> ToXFileDto(XFile model);

        /// <summary>
        /// Convert a List of Entities to Dto ...
        /// </summary>
        /// <param name="list"></param>
        /// <returns></returns>
        Task<IEnumerable<XFileDto>> ToXDtoList(IEnumerable<XFile> list);

        /// <summary>
        /// Converts an Entity Query Result to Dto ...
        /// </summary>
        /// <param name="queryResult"></param>
        /// <returns></returns>
        Task<XQueryResult<XFileDto>> ToXDtoQueryResult(XQueryResult<XFile> queryResult);
        #endregion
    }
}