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git/JurasicZoo/ZooBusinessLogic/BusinessLogic/CostLogic.cs

@@ -0,0 +1,114 @@
+using Microsoft.Extensions.Logging;
+using System;
+using System.Collections.Generic;
+using System.Linq;
+using System.Text;
+using System.Threading.Tasks;
+using ZooContracts.BindingModels;
+using ZooContracts.BuisnessLogicsContracts;
+using ZooContracts.BusinessLogicsContracts;
+using ZooContracts.SearchModels;
+using ZooContracts.StorageContracts;
+using ZooContracts.ViewModels;
+
+namespace ZooBusinessLogic.BusinessLogic
+{
+    public class CostLogic : ICostLogic
+    {
+        private readonly ILogger _logger;
+        private readonly ICostStorage _CostStorage;
+
+        public CostLogic(ILogger<CostLogic> logger, ICostStorage CostStorage)
+        {
+            _logger = logger;
+            _CostStorage = CostStorage;
+        }
+        public List<CostViewModel>? ReadList(CostSearchModel? model)
+        {
+            _logger.LogInformation("ReadList. CostName:{CostName}. Id:{ Id}", model?.CostName, model?.Id);
+            var list = model == null ? _CostStorage.GetFullList() : _CostStorage.GetFilteredList(model);
+            if (list == null)
+            {
+                _logger.LogWarning("ReadList return null list");
+                return null;
+            }
+            _logger.LogInformation("ReadList. Count:{Count}", list.Count);
+            return list;
+        }
+
+        public CostViewModel? ReadElement(CostSearchModel model)
+        {
+            if (model == null)
+            {
+                throw new ArgumentNullException(nameof(model));
+            }
+            _logger.LogInformation("ReadElement. CostName:{CostName}.Id:{ Id}", model.CostName, model.Id);
+            var element = _CostStorage.GetElement(model);
+            if (element == null)
+            {
+                _logger.LogWarning("ReadElement element not found");
+                return null;
+            }
+            _logger.LogInformation("ReadElement find. Id:{Id}", element.Id);
+            return element;
+        }
+
+        public bool Create(CostBindingModel model)
+        {
+            CheckModel(model);
+            if (_CostStorage.Insert(model) == null)
+            {
+                _logger.LogWarning("Insert operation failed");
+                return false;
+            }
+            return true;
+        }
+        public bool Update(CostBindingModel model)
+        {
+            CheckModel(model);
+            if (_CostStorage.Update(model) == null)
+            {
+                _logger.LogWarning("Update operation failed");
+                return false;
+            }
+            return true;
+        }
+        public bool Delete(CostBindingModel model)
+        {
+            CheckModel(model, false);
+            _logger.LogInformation("Delete. Id:{Id}", model.Id);
+            if (_CostStorage.Delete(model) == null)
+            {
+                _logger.LogWarning("Delete operation failed");
+                return false;
+            }
+            return true;
+        }
+        private void CheckModel(CostBindingModel model, bool withParams =
+        true)
+        {
+            if (model == null)
+            {
+                throw new ArgumentNullException(nameof(model));
+            }
+            if (!withParams)
+            {
+                return;
+            }
+            if (model.CostPrice <= 0)
+            {
+                throw new ArgumentNullException("сумма затрат должна быть больше 0",
+               nameof(model.CostPrice));
+            }
+            _logger.LogInformation("Cost. CostName:{CostName}.CostPrice:{CostPrice} Id: { Id}", model.CostName, model.CostPrice, model.Id);
+            var element = _CostStorage.GetElement(new CostSearchModel
+            {
+                CostName = model.CostName
+            });
+            if (element != null && element.Id != model.Id)
+            {
+                throw new InvalidOperationException("статья затрат с таким названием уже есть");
+            }
+        }
+    }
+}

git/JurasicZoo/ZooContracts/BindingModels/CostBindingModel.cs

@@ -0,0 +1,16 @@
+using System;
+using System.Collections.Generic;
+using System.Linq;
+using System.Text;
+using System.Threading.Tasks;
+using ZooDataModels.Models;
+
+namespace ZooContracts.BindingModels
+{
+    public class CostBindingModel : ICostModel 
+    {
+        public int Id { get; set; }
+        public string CostName { get; set; } = string.Empty;
+        public double CostPrice { get; set; }
+    }
+}

git/JurasicZoo/ZooContracts/BusinessLogicsContracts/ICostLogic.cs

@@ -0,0 +1,20 @@
+using System;
+using System.Collections.Generic;
+using System.Linq;
+using System.Text;
+using System.Threading.Tasks;
+using ZooContracts.BindingModels;
+using ZooContracts.SearchModels;
+using ZooContracts.ViewModels;
+
+namespace ZooContracts.BusinessLogicsContracts
+{
+    public interface ICostLogic
+    {
+        List<CostViewModel>? ReadList(CostSearchModel? model);
+        CostViewModel? ReadElement(CostSearchModel model);
+        bool Create(CostBindingModel model);
+        bool Update(CostBindingModel model);
+        bool Delete(CostBindingModel model);
+    }
+}

git/JurasicZoo/ZooContracts/SearchModels/CostSearchModel.cs

@@ -0,0 +1,15 @@
+using System;
+using System.Collections.Generic;
+using System.Linq;
+using System.Text;
+using System.Threading.Tasks;
+
+namespace ZooContracts.SearchModels
+{
+    public class CostSearchModel
+    {
+        public int? Id { get; set; }
+        public string? CostName { get; set; }
+        public double CostPrice { get; set; }
+    }
+}

git/JurasicZoo/ZooContracts/StorageContracts/ICostStorage.cs

@@ -0,0 +1,21 @@
+using System;
+using System.Collections.Generic;
+using System.Linq;
+using System.Text;
+using System.Threading.Tasks;
+using ZooContracts.BindingModels;
+using ZooContracts.SearchModels;
+using ZooContracts.ViewModels;
+
+namespace ZooContracts.StorageContracts
+{
+    public interface ICostStorage
+    {
+        List<CostViewModel> GetFullList();
+        List<CostViewModel> GetFilteredList(CostSearchModel model);
+        CostViewModel? GetElement(CostSearchModel model);
+        CostViewModel? Insert(CostBindingModel model);
+        CostViewModel? Update(CostBindingModel model);
+        CostViewModel? Delete(CostBindingModel model);
+    }
+}

git/JurasicZoo/ZooContracts/ViewModels/CostViewModel.cs

@@ -0,0 +1,19 @@
+using System;
+using System.Collections.Generic;
+using System.ComponentModel;
+using System.Linq;
+using System.Text;
+using System.Threading.Tasks;
+using ZooDataModels.Models;
+
+namespace ZooContracts.ViewModels
+{
+    public class CostViewModel : ICostModel
+    {
+        public int Id { get; set; }
+        [DisplayName("название статьи затрат")]
+        public string CostName { get; set; } = string.Empty;
+        [DisplayName("сумма затраты")]
+        public double CostPrice { get; set; }
+    }
+}

git/JurasicZoo/ZooDataModels/Models/ICostModel.cs

@@ -0,0 +1,14 @@
+using System;
+using System.Collections.Generic;
+using System.Linq;
+using System.Text;
+using System.Threading.Tasks;
+
+namespace ZooDataModels.Models
+{
+    public interface ICostModel : IId
+    {
+        string CostName { get; }
+        double CostPrice { get; }
+    }
+}

git/JurasicZoo/ZooDataModels/Models/IRouteModel.cs

@@ -7,8 +7,8 @@ using ZooDataModels.Enums;
 
 namespace ZooDataModels.Models
 {
-	public interface IRouteModel
-	{
+	public interface IRouteModel : IId
+    {
 		int ClientId { get; }
 		string RouteName { get; }
 		double RoutePrice { get; }