JewelryStoreFileImplement/Implements/ImplementerStorage.cs

@@ -0,0 +1,108 @@
+using JewelryStoreContracts.BindingModels;
+using JewelryStoreContracts.SearchModels;
+using JewelryStoreContracts.StoragesContracts;
+using JewelryStoreContracts.ViewModels;
+using System;
+using System.Collections.Generic;
+using System.Linq;
+using System.Text;
+using System.Threading.Tasks;
+
+namespace JewelryStoreFileImplement.Implements
+{
+    public class ImplementerStorage : IImplementerStorage
+    {
+        private readonly DataFileSingleton _source;
+        public ImplementerStorage()
+        {
+            _source = DataFileSingleton.GetInstance();
+        }
+        public ImplementerViewModel? Delete(ImplementerBindingModel model)
+        {
+            var res = _source.Implementers.FirstOrDefault(x => x.Id == model.Id);
+
+            if (res != null)
+            {
+                _source.Implementers.Remove(res);
+                _source.SaveImplementers();
+            }
+            return res?.GetViewModel;
+        }
+
+        public ImplementerViewModel? GetElement(ImplementerSearchModel model)
+        {
+            if (model.Id.HasValue)
+                return _source.Implementers.FirstOrDefault(x => x.Id == model.Id)?.GetViewModel;
+
+            if (model.ImplementerFIO != null && model.Password != null)
+                return _source.Implementers
+                    .FirstOrDefault(x => x.ImplementerFIO.Equals(model.ImplementerFIO)
+                                      && x.Password.Equals(model.Password))
+                    ?.GetViewModel;
+
+            if (model.ImplementerFIO != null)
+                return _source.Implementers.FirstOrDefault(x => x.ImplementerFIO.Equals(model.ImplementerFIO))?.GetViewModel;
+
+            return null;
+        }
+
+        public List<ImplementerViewModel> GetFilteredList(ImplementerSearchModel model)
+        {
+            if (model == null)
+            {
+                return new();
+            }
+
+            if (model.Id.HasValue)
+            {
+                var res = GetElement(model);
+
+                return res != null ? new() { res } : new();
+            }
+
+            if (model.ImplementerFIO != null)
+            {
+                return _source.Implementers
+                    .Where(x => x.ImplementerFIO.Equals(model.ImplementerFIO))
+                    .Select(x => x.GetViewModel)
+                    .ToList();
+            }
+
+            return new();
+        }
+
+        public List<ImplementerViewModel> GetFullList()
+        {
+            return _source.Implementers.Select(x => x.GetViewModel).ToList();
+        }
+
+        public ImplementerViewModel? Insert(ImplementerBindingModel model)
+        {
+            model.Id = _source.Implementers.Count > 0 ? _source.Implementers.Max(x => x.Id) + 1 : 1;
+
+            var res = Implementer.Create(model);
+
+            if (res != null)
+            {
+                _source.Implementers.Add(res);
+                _source.SaveImplementers();
+            }
+
+            return res?.GetViewModel;
+        }
+
+        public ImplementerViewModel? Update(ImplementerBindingModel model)
+        {
+            var res = _source.Implementers.FirstOrDefault(x => x.Id == model.Id);
+
+            if (res != null)
+            {
+                res.Update(model);
+                _source.SaveImplementers();
+            }
+
+            return res?.GetViewModel;
+        }
+    }
+}
+