Added cipher service with bulk import to account controller

src/Core/Services/CipherService.cs

@@ -0,0 +1,54 @@
+using System;
+using System.Linq;
+using System.Collections.Generic;
+using System.Threading.Tasks;
+using Bit.Core.Domains;
+using Bit.Core.Repositories;
+
+namespace Bit.Core.Services
+{
+    public class CipherService : ICipherService
+    {
+        private readonly IFolderRepository _folderRepository;
+        private readonly ICipherRepository _cipherRepository;
+
+        public CipherService(
+            IFolderRepository folderRepository,
+            ICipherRepository cipherRepository)
+        {
+            _folderRepository = folderRepository;
+            _cipherRepository = cipherRepository;
+        }
+
+        public async Task ImportCiphersAsync(
+            List<Folder> folders,
+            List<Site> sites,
+            IEnumerable<KeyValuePair<int, int>> siteRelationships)
+        {
+            // create all the folders
+            var folderTasks = new List<Task>();
+            foreach(var folder in folders)
+            {
+                folderTasks.Add(_folderRepository.CreateAsync(folder));
+            }
+            await Task.WhenAll(folderTasks);
+
+            // associate the newly created folders to the sites
+            foreach(var relationship in siteRelationships)
+            {
+                var site = sites.ElementAtOrDefault(relationship.Key);
+                var folder = folders.ElementAtOrDefault(relationship.Value);
+
+                if(site == null || folder == null)
+                {
+                    continue;
+                }
+
+                site.FolderId = folder.Id;
+            }
+
+            // create all the sites
+            await _cipherRepository.CreateAsync(sites);
+        }
+    }
+}

src/Core/Services/ICipherService.cs

@@ -0,0 +1,11 @@
+using System.Collections.Generic;
+using System.Threading.Tasks;
+using Bit.Core.Domains;
+
+namespace Bit.Core.Services
+{
+    public interface ICipherService
+    {
+        Task ImportCiphersAsync(List<Folder> folders, List<Site> sites, IEnumerable<KeyValuePair<int, int>> siteRelationships);
+    }
+}