From 657fb589137099794e58fbd35beb7d942b376965 Mon Sep 17 00:00:00 2001
From: crupest <crupest@outlook.com>
Date: Sun, 25 Apr 2021 21:20:04 +0800
Subject: ...

---
 BackEnd/Timeline/Services/BasicTimelineService.cs | 134 ----------------------
 1 file changed, 134 deletions(-)
 delete mode 100644 BackEnd/Timeline/Services/BasicTimelineService.cs

(limited to 'BackEnd/Timeline/Services/BasicTimelineService.cs')

diff --git a/BackEnd/Timeline/Services/BasicTimelineService.cs b/BackEnd/Timeline/Services/BasicTimelineService.cs
deleted file mode 100644
index be500135..00000000
--- a/BackEnd/Timeline/Services/BasicTimelineService.cs
+++ /dev/null
@@ -1,134 +0,0 @@
-using Microsoft.EntityFrameworkCore;
-using System;
-using System.Collections.Generic;
-using System.Linq;
-using System.Threading.Tasks;
-using Timeline.Entities;
-using Timeline.Models;
-using Timeline.Models.Validation;
-using Timeline.Services.Exceptions;
-
-namespace Timeline.Services
-{
-    /// <summary>
-    /// This service provide some basic timeline functions, which should be used internally for other services.
-    /// </summary>
-    public interface IBasicTimelineService
-    {
-        /// <summary>
-        /// Check whether a timeline with given id exists without getting full info.
-        /// </summary>
-        /// <param name="id">The timeline id.</param>
-        /// <returns>True if exist. Otherwise false.</returns>
-        Task<bool> CheckExistence(long id);
-
-        /// <summary>
-        /// Get the timeline id by name.
-        /// </summary>
-        /// <param name="timelineName">Timeline name.</param>
-        /// <returns>Id of the timeline.</returns>
-        /// <exception cref="ArgumentNullException">Thrown when <paramref name="timelineName"/> is null.</exception>
-        /// <exception cref="ArgumentException">Throw when <paramref name="timelineName"/> is of bad format.</exception>
-        /// <exception cref="TimelineNotExistException">
-        /// Thrown when timeline with name <paramref name="timelineName"/> does not exist.
-        /// If it is a personal timeline, then inner exception is <see cref="UserNotExistException"/>.
-        /// </exception>
-        /// <remarks>
-        /// If name is of personal timeline and the timeline does not exist, it will be created if user exists.
-        /// If the user does not exist,  <see cref="TimelineNotExistException"/> will be thrown with <see cref="UserNotExistException"/> as inner exception.
-        ///</remarks>
-        Task<long> GetTimelineIdByName(string timelineName);
-    }
-
-
-    public class BasicTimelineService : IBasicTimelineService
-    {
-        private readonly DatabaseContext _database;
-
-        private readonly IBasicUserService _basicUserService;
-        private readonly IClock _clock;
-
-        private readonly GeneralTimelineNameValidator _generalTimelineNameValidator = new GeneralTimelineNameValidator();
-
-        public BasicTimelineService(DatabaseContext database, IBasicUserService basicUserService, IClock clock)
-        {
-            _database = database;
-            _basicUserService = basicUserService;
-            _clock = clock;
-        }
-
-        protected TimelineEntity CreateNewTimelineEntity(string? name, long ownerId)
-        {
-            var currentTime = _clock.GetCurrentTime();
-
-            return new TimelineEntity
-            {
-                Name = name,
-                NameLastModified = currentTime,
-                OwnerId = ownerId,
-                Visibility = TimelineVisibility.Register,
-                CreateTime = currentTime,
-                LastModified = currentTime,
-                CurrentPostLocalId = 0,
-                Members = new List<TimelineMemberEntity>()
-            };
-        }
-
-        public async Task<bool> CheckExistence(long id)
-        {
-            return await _database.Timelines.AnyAsync(t => t.Id == id);
-        }
-
-        public async Task<long> GetTimelineIdByName(string timelineName)
-        {
-            if (timelineName == null)
-                throw new ArgumentNullException(nameof(timelineName));
-
-            if (!_generalTimelineNameValidator.Validate(timelineName, out var message))
-                throw new ArgumentException(message);
-
-            timelineName = TimelineHelper.ExtractTimelineName(timelineName, out var isPersonal);
-
-            if (isPersonal)
-            {
-                long userId;
-                try
-                {
-                    userId = await _basicUserService.GetUserIdByUsername(timelineName);
-                }
-                catch (UserNotExistException e)
-                {
-                    throw new TimelineNotExistException(timelineName, e);
-                }
-
-                var timelineEntity = await _database.Timelines.Where(t => t.OwnerId == userId && t.Name == null).Select(t => new { t.Id }).SingleOrDefaultAsync();
-
-                if (timelineEntity != null)
-                {
-                    return timelineEntity.Id;
-                }
-                else
-                {
-                    var newTimelineEntity = CreateNewTimelineEntity(null, userId);
-                    _database.Timelines.Add(newTimelineEntity);
-                    await _database.SaveChangesAsync();
-
-                    return newTimelineEntity.Id;
-                }
-            }
-            else
-            {
-                var timelineEntity = await _database.Timelines.Where(t => t.Name == timelineName).Select(t => new { t.Id }).SingleOrDefaultAsync();
-
-                if (timelineEntity == null)
-                {
-                    throw new TimelineNotExistException(timelineName);
-                }
-                else
-                {
-                    return timelineEntity.Id;
-                }
-            }
-        }
-    }
-}
-- 
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