fix relation in DatabaseImplement, some implements in StorekeeperApp

Factory/FactoryBuisinessLogic/BusinessLogics/MachineLogic.cs

@@ -6,7 +6,7 @@ using FactoryContracts.StoragesContracts;
 using FactoryContracts.ViewModels;
 using Microsoft.Extensions.Logging;
 
-namespace FactoryBuisinessLogic.BusinessLogics
+namespace FactoryBusinessLogic.BusinessLogics
 {
     public class MachineLogic : IMachineLogic
     {
@@ -33,6 +33,18 @@ namespace FactoryBuisinessLogic.BusinessLogics
             return list;
         }
 
+		public List<MachineViewModel>? ReadListByIds(List<int> ids)
+		{
+			_logger.LogInformation("ReadListByIds.");
+            var list = _machineStorage.GetListByIds(ids);
+			if (list == null)
+			{
+				_logger.LogWarning("ReadList return null list");
+				return null;
+			}
+			_logger.LogInformation("ReadListByIds. Count:{Count}", list.Count);
+			return list;
+		}
 		public MachineViewModel? ReadElement(MachineSearchModel model)
         {
             if (model == null)

Factory/FactoryBuisinessLogic/BusinessLogics/ProductLogic.cs

@@ -6,7 +6,7 @@ using FactoryContracts.StoragesContracts;
 using FactoryContracts.ViewModels;
 using Microsoft.Extensions.Logging;
 
-namespace FactoryBuisinessLogic.BusinessLogics
+namespace FactoryBusinessLogic.BusinessLogics
 {
     public class ProductLogic : IProductLogic
     {

Factory/FactoryBuisinessLogic/BusinessLogics/RequirementLogic.cs

@@ -6,7 +6,7 @@ using FactoryContracts.StoragesContracts;
 using FactoryContracts.ViewModels;
 using Microsoft.Extensions.Logging;
 
-namespace FactoryBuisinessLogic.BusinessLogics
+namespace FactoryBusinessLogic.BusinessLogics
 {
     public class RequirementLogic : IRequirementLogic
     {

Factory/FactoryBuisinessLogic/BusinessLogics/StorekeeperReportLogic.cs

@@ -4,7 +4,7 @@ using FactoryContracts.SearchModels;
 using FactoryContracts.StoragesContracts;
 using FactoryContracts.ViewModels;
 
-namespace FactoryBuisinessLogic.BusinessLogics
+namespace FactoryBusinessLogic.BusinessLogics
 {
     public class StorekeeperReportLogic : IStorekeeperReportLogic
     {

Factory/FactoryBuisinessLogic/BusinessLogics/WorkerReportLogic.cs

@@ -4,7 +4,7 @@ using FactoryContracts.SearchModels;
 using FactoryContracts.StoragesContracts;
 using FactoryContracts.ViewModels;
 
-namespace FactoryBuisinessLogic.BusinessLogics
+namespace FactoryBusinessLogic.BusinessLogics
 {
     public class WorkerReportLogic : IWorkerReportLogic
     {

Factory/FactoryContracts/BindingModels/ExecutionPhaseBindingModel.cs

@@ -11,7 +11,7 @@ namespace FactoryContracts.BindingModels
         public string ImplementerFIO { get; set; } = string.Empty;
         public ExecutionPhaseStatus Status { get; set; } = ExecutionPhaseStatus.Неизвестен;
         public int ClientId { get; set; }
-		public int? PlanProductionId { get; set; }
+		public int PlanProductionId { get; set; }
 
 
 	}

Factory/FactoryContracts/BusinessLogicsContracts/IMachineLogic.cs

@@ -8,6 +8,8 @@ namespace FactoryContracts.BusinessLogicsContracts
     {
         List<MachineViewModel>? ReadList(MachineSearchModel? model);
 
+		List<MachineViewModel>? ReadListByIds(List<int> ids);
+
 		MachineViewModel? ReadElement(MachineSearchModel model);
 
         bool Create(MachineBindingModel model);

Factory/FactoryContracts/StoragesContracts/IMachineStorage.cs

@@ -10,6 +10,8 @@ namespace FactoryContracts.StoragesContracts
 
         List<MachineViewModel> GetFilteredList(MachineSearchModel model);
 
+		List<MachineViewModel> GetListByIds(List<int> ids);
+
 		List<MachinePeriodReportViewModel> GetMachinesByPeriod(ClientSearchModel client, ReportBindingModel model);
 
         MachineViewModel? GetElement(MachineSearchModel model);

Factory/FactoryContracts/ViewModels/ExecutionPhaseViewModel.cs

@@ -9,7 +9,7 @@ namespace FactoryContracts.ViewModels
         public int Id { get; set; }
 
         public int ClientId { get; set; }
-        public int? PlanProductionId { get; set; }
+        public int PlanProductionId { get; set; }
 
         [DisplayName("ФИО исполнителя")]
         public string ImplementerFIO { get; set; } = string.Empty;

Factory/FactoryDataModels/Models/IExecutionPhaseModel.cs

@@ -9,6 +9,6 @@ namespace FactoryDataModels.Models
         string ImplementerFIO { get; }
         ExecutionPhaseStatus Status { get; }
         int ClientId { get; }
-        int? PlanProductionId { get; }
+        int PlanProductionId { get; }
     }
 }

Factory/FactoryDataModels/Models/IWorkpieceModel.cs

@@ -9,6 +9,7 @@
         double Cost { get; }
 
         int ClientId { get; }
+		DateTime DateCreate { get; }
 
 		Dictionary<int, (IProductModel, int)> WorkpieceProducts { get; }
     }

Factory/FactoryDatabaseImplement/FactoryDatabaseImplement.csproj

@@ -23,8 +23,4 @@
     <ProjectReference Include="..\FactoryContracts\FactoryContracts.csproj" />
   </ItemGroup>
 
-  <ItemGroup>
-    <Folder Include="Migrations\" />
-  </ItemGroup>
-
 </Project>

Factory/FactoryDatabaseImplement/Implements/MachineStorage.cs

@@ -42,6 +42,18 @@ namespace FactoryDatabaseImplement.Implements
                     .ToList();
         }
 
+		public List<MachineViewModel> GetListByIds(List<int> ids)
+        {
+            using var context = new FactoryDatabase();
+            return context.Machines
+                .Include(x => x.Client)
+                .Include (x => x.PlanProductions)
+                .ThenInclude (x => x.PlanProduction)
+                .Where(x => ids.Any(y => x.Id == y))
+                .Select(x => x.GetViewModel)
+                .ToList();
+        }
+
 		public MachineViewModel? GetElement(MachineSearchModel model)
         {
             if (string.IsNullOrEmpty(model.MachineName) && !model.Id.HasValue)

Factory/FactoryDatabaseImplement/Migrations/20240528130831_InitCreate.Designer.cs

@@ -12,7 +12,7 @@ using Npgsql.EntityFrameworkCore.PostgreSQL.Metadata;
 namespace FactoryDatabaseImplement.Migrations
 {
     [DbContext(typeof(FactoryDatabase))]
-    [Migration("20240528111521_InitCreate")]
+    [Migration("20240528130831_InitCreate")]
     partial class InitCreate
     {
         protected override void BuildTargetModel(ModelBuilder modelBuilder)
@@ -71,8 +71,7 @@ namespace FactoryDatabaseImplement.Migrations
                         .IsRequired()
                         .HasColumnType("text");
 
-                    b.Property<int?>("PlanProductionId")
-                        .IsRequired()
+                    b.Property<int>("PlanProductionId")
                         .HasColumnType("integer");
 
                     b.Property<int>("Status")

Factory/FactoryDatabaseImplement/Migrations/FactoryDatabaseModelSnapshot.cs

@@ -69,8 +69,7 @@ namespace FactoryDatabaseImplement.Migrations
                         .IsRequired()
                         .HasColumnType("text");
 
-                    b.Property<int?>("PlanProductionId")
-                        .IsRequired()
+                    b.Property<int>("PlanProductionId")
                         .HasColumnType("integer");
 
                     b.Property<int>("Status")

Factory/FactoryDatabaseImplement/Models/ExecutionPhase.cs

@@ -12,11 +12,11 @@ namespace FactoryDatabaseImplement.Models
         public int Id { get; private set; }
         [Required]
         public int ClientId { get; private set; }
-        public virtual Client Client { get; private set; } = new();
+        public virtual Client Client { get; private set; }
 
         [Required]
-        public int? PlanProductionId { get; private set; }
-        public virtual PlanProduction PlanProduction { get; private set; } = new();
+        public int PlanProductionId { get; private set; }
+        public virtual PlanProduction PlanProduction { get; private set; }
 
         [Required]
         public string ExecutionPhaseName { get; private set; } = string.Empty;

Factory/FactoryDatabaseImplement/Models/Machine.cs

@@ -13,7 +13,7 @@ namespace FactoryDatabaseImplement.Models
         [Required]
         public int ClientId { get; private set; }
 
-        public virtual Client Client { get; private set; } = new();
+        public virtual Client Client { get; private set; }
 
         [Required]
         public string MachineName { get; private set; } = string.Empty;

Factory/FactoryDatabaseImplement/Models/MachinePlanProduction.cs

@@ -15,8 +15,8 @@ namespace FactoryDatabaseImplement.Models
         [Required]
         public int Count { get; set; }
 
-        public virtual PlanProduction PlanProduction { get; set; } = new();
+        public virtual PlanProduction PlanProduction { get; set; }
 
-        public virtual Machine Machine { get; set; } = new();
+        public virtual Machine Machine { get; set; }
     }
 }

Factory/FactoryDatabaseImplement/Models/Product.cs

@@ -13,12 +13,12 @@ namespace FactoryDatabaseImplement.Models
         [Required]
         public int ClientId { get; private set; }
 
-        public virtual Client Client { get; private set; } = new();
+        public virtual Client Client { get; private set; }
 
         [Required]
         public int RequirementId { get; private set; }
 
-        public virtual Requirement Requirement { get; private set; } = new();
+        public virtual Requirement Requirement { get; private set; }
 
         [Required]
         public string ProductName { get; private set; } = string.Empty;

Factory/FactoryDatabaseImplement/Models/Requirement.cs

@@ -13,7 +13,7 @@ namespace FactoryDatabaseImplement.Models
         [Required]
         public int ClientId { get; private set; }
 
-        public virtual Client Client { get; private set; } = new();
+        public virtual Client Client { get; private set; }
 
         [Required]
         public string RequirementName { get; private set; } = string.Empty;
@@ -25,7 +25,7 @@ namespace FactoryDatabaseImplement.Models
         public int Lifetime { get; private set; }
 
         [ForeignKey("RequirementId")]
-        public virtual Product Product { get; private set; } = new();
+        public virtual Product Product { get; private set; }
 
         public static Requirement Create(RequirementBindingModel model)
         {

Factory/FactoryDatabaseImplement/Models/Workpiece.cs

@@ -14,7 +14,7 @@ namespace FactoryDatabaseImplement.Models
         public string WorkpieceName { get; set; } = string.Empty;
         [Required]
         public int ClientId { get; set; }
-        public virtual Client Client { get; set; } = new Client();
+        public virtual Client Client { get; set; }
         [Required]
         public string Material { get; set; } = string.Empty;
 

Factory/FactoryRestApi/Controllers/StorekeeperController.cs

@@ -0,0 +1,12 @@
+using Microsoft.AspNetCore.Mvc;
+
+namespace FactoryRestApi.Controllers
+{
+    public class StorekeeperController : Controller
+    {
+        public IActionResult Index()
+        {
+            return View();
+        }
+    }
+}

Factory/FactoryRestApi/FactoryRestApi.csproj

@@ -0,0 +1,13 @@
+<Project Sdk="Microsoft.NET.Sdk.Web">
+
+  <PropertyGroup>
+    <TargetFramework>net6.0</TargetFramework>
+    <Nullable>enable</Nullable>
+    <ImplicitUsings>enable</ImplicitUsings>
+  </PropertyGroup>
+
+  <ItemGroup>
+    <PackageReference Include="Swashbuckle.AspNetCore" Version="6.5.0" />
+  </ItemGroup>
+
+</Project>

Factory/FactoryRestApi/Program.cs

@@ -0,0 +1,25 @@
+var builder = WebApplication.CreateBuilder(args);
+
+// Add services to the container.
+
+builder.Services.AddControllers();
+// Learn more about configuring Swagger/OpenAPI at https://aka.ms/aspnetcore/swashbuckle
+builder.Services.AddEndpointsApiExplorer();
+builder.Services.AddSwaggerGen();
+
+var app = builder.Build();
+
+// Configure the HTTP request pipeline.
+if (app.Environment.IsDevelopment())
+{
+    app.UseSwagger();
+    app.UseSwaggerUI();
+}
+
+app.UseHttpsRedirection();
+
+app.UseAuthorization();
+
+app.MapControllers();
+
+app.Run();

Factory/FactoryRestApi/Properties/launchSettings.json

@@ -0,0 +1,31 @@
+{
+  "$schema": "https://json.schemastore.org/launchsettings.json",
+  "iisSettings": {
+    "windowsAuthentication": false,
+    "anonymousAuthentication": true,
+    "iisExpress": {
+      "applicationUrl": "http://localhost:65510",
+      "sslPort": 44345
+    }
+  },
+  "profiles": {
+    "FactoryRestApi": {
+      "commandName": "Project",
+      "dotnetRunMessages": true,
+      "launchBrowser": true,
+      "launchUrl": "swagger",
+      "applicationUrl": "https://localhost:7230;http://localhost:5003",
+      "environmentVariables": {
+        "ASPNETCORE_ENVIRONMENT": "Development"
+      }
+    },
+    "IIS Express": {
+      "commandName": "IISExpress",
+      "launchBrowser": true,
+      "launchUrl": "swagger",
+      "environmentVariables": {
+        "ASPNETCORE_ENVIRONMENT": "Development"
+      }
+    }
+  }
+}

Factory/FactoryRestApi/appsettings.Development.json

@@ -0,0 +1,8 @@
+{
+  "Logging": {
+    "LogLevel": {
+      "Default": "Information",
+      "Microsoft.AspNetCore": "Warning"
+    }
+  }
+}

Factory/FactoryRestApi/appsettings.json

@@ -0,0 +1,9 @@
+{
+  "Logging": {
+    "LogLevel": {
+      "Default": "Information",
+      "Microsoft.AspNetCore": "Warning"
+    }
+  },
+  "AllowedHosts": "*"
+}

Factory/FactoryStorekeeperApp/Client.cs

@@ -0,0 +1,9 @@
+using FactoryContracts.ViewModels;
+
+namespace FactoryStorekeeperApp
+{
+	public static class Client
+	{
+		public static ClientViewModel? client { get; set; }
+	}
+}

Factory/FactoryStorekeeperApp/Controllers/HomeController.cs

@@ -2,6 +2,7 @@
 using FactoryContracts.BusinessLogicsContracts;
 using FactoryContracts.SearchModels;
 using FactoryContracts.ViewModels;
+using FactoryDataModels.Enums;
 using FactoryDataModels.Models;
 using FactoryStorekepeerApp.Models;
 using Microsoft.AspNetCore.Mvc;
@@ -12,13 +13,18 @@ namespace FactoryStorekeeperApp.Controllers
 	public class HomeController : Controller
 	{
 		private readonly ILogger<HomeController> _logger;
+        private readonly IClientLogic clientLogic;
 		private readonly IMachineLogic machineLogic;
 		private readonly IRequirementLogic requirementLogic;
 		private readonly IProductLogic productLogic;
 
-		public HomeController(ILogger<HomeController> logger, IRequirementLogic requirementLogic, IProductLogic productLogic, IMachineLogic machineLogic)
+		private bool IsLoggedIn { get { return Client.client != null; } }
+		private int UserId { get { return Client.client!.Id; } }
+
+		public HomeController(ILogger<HomeController> logger, IClientLogic clientLogic, IRequirementLogic requirementLogic, IProductLogic productLogic, IMachineLogic machineLogic)
         {
             _logger = logger;
+            this.clientLogic = clientLogic;
             this.requirementLogic = requirementLogic;
             this.productLogic = productLogic;
 			this.machineLogic = machineLogic;
@@ -26,6 +32,10 @@ namespace FactoryStorekeeperApp.Controllers
 
         public IActionResult Index()
 		{
+			if (!IsLoggedIn)
+			{
+				return Redirect("~/Home/Enter");
+			}
 			return View();
 		}
 
@@ -38,32 +48,78 @@ namespace FactoryStorekeeperApp.Controllers
 		[HttpGet]
 		public IActionResult Enter()
 		{
+			if (IsLoggedIn)
+			{
+				return Redirect("~/Home/Index");
+			}
+			return View();
+		}
+
+		[HttpPost]
+		public IActionResult Enter(string login, string password)
+		{
+            var existsClient = clientLogic.ReadElement(new ClientSearchModel { Login = login, Password = password });
+
+			if (existsClient != null)
+            {
+                Client.client = existsClient;
+            }
 			return View();
 		}
 
 		[HttpGet]
 		public IActionResult Register()
 		{
+			if (IsLoggedIn) 
+			{
+				return Redirect("~/Home/Index");
+			}
 			return View();
 		}
 
+		[HttpPost]
+		public IActionResult Register(string login, string email, string password, string passwordConfirm)
+		{
+            if (!password.Equals(passwordConfirm))
+            {
+                return Error();
+            }
+            clientLogic.Create(new ClientBindingModel
+            {
+                Email = email,
+                Login = login,
+                Password = password,
+                Role = ClientRole.Кладовщик
+            });
+			return Redirect("~/Home/Index");
+		}
+
 		[HttpGet]
 		public IActionResult Machines()
 		{
+			if (!IsLoggedIn)
+			{
+				return Redirect("~/Home/Enter");
+			}
 			return View(machineLogic.ReadList(null));
 		}
 		[HttpGet]
 		public IActionResult Machine()
 		{
+			if (!IsLoggedIn)
+			{
+				return Redirect("~/Home/Enter");
+			}
 			return View();
 		}
 
         [HttpPost]
-        public void Machine(string machinename, DateTime exploitationstartdate, int lifetime)
+        public IActionResult Machine(string machinename, DateTime exploitationstartdate, int lifetime)
         {
 			var element = machineLogic.ReadElement(new MachineSearchModel
 			{
 				MachineName = machinename,
+				ClientId = Client.client.Id,
 			});
 			if (element == null) {
 				machineLogic.Create(new MachineBindingModel
@@ -71,6 +127,7 @@ namespace FactoryStorekeeperApp.Controllers
 					MachineName = machinename,
 					ExploitationStartDate = exploitationstartdate,
 					Lifetime = lifetime,
+					ClientId = Client.client.Id,
 				});
 			}
 			else
@@ -80,35 +137,47 @@ namespace FactoryStorekeeperApp.Controllers
                     MachineName = machinename,
                     ExploitationStartDate = exploitationstartdate,
                     Lifetime = lifetime,
+					ClientId = Client.client.Id,
 				});
             }
-			Redirect("~/Home/Machines");
+            return Redirect("~/Home/Machines");
         }
 
         [HttpGet]
 		public IActionResult Products()
 		{
+			if (!IsLoggedIn)
+			{
+				return Redirect("~/Home/Enter");
+			}
 			return View(productLogic.ReadList(null));
 		}
 		[HttpGet]
 		public IActionResult Product()
 		{
+			if (!IsLoggedIn)
+			{
+				return Enter();
+			}
 			return View(machineLogic.ReadList(null));
 		}
         [HttpPost]
-        public void Product(string productname, int price, List<MachineViewModel> machinetable)
+        public void Product(string productname, int price, List<int> machines)
         {
             var element = productLogic.ReadElement(new ProductSearchModel
             {
                 ProductName = productname,
+				ClientId = Client.client.Id,
 			});
+			var machineList = machineLogic.ReadListByIds(machines);
             if (element == null)
             {
                 productLogic.Create(new ProductBindingModel
                 {
                     ProductName = productname,
                     Price = price,
-                    ProductMachines = machinetable.ToDictionary(recPC => recPC.Id, recPC => recPC as IMachineModel),
+                    ProductMachines = machineList.ToDictionary(recPC => recPC.Id, recPC => recPC as IMachineModel),
+					ClientId = Client.client.Id,
 				});
             }
             else
@@ -117,7 +186,8 @@ namespace FactoryStorekeeperApp.Controllers
                 {
                     ProductName = productname,
                     Price = price,
-                    ProductMachines = machinetable.ToDictionary(recPC => recPC.Id, recPC => recPC as IMachineModel),
+                    ProductMachines = machineList.ToDictionary(recPC => recPC.Id, recPC => recPC as IMachineModel),
+					ClientId = Client.client.Id,
 				});
             }
             Redirect("~/Home/Products");
@@ -125,23 +195,39 @@ namespace FactoryStorekeeperApp.Controllers
         [HttpGet]
 		public IActionResult Requirements()
 		{
+			if (!IsLoggedIn)
+			{
+				return Redirect("~/Home/Enter");
+			}
 			return View(requirementLogic.ReadList(null));
 		}
 		[HttpGet]
 		public IActionResult Requirement()
 		{
+			if (!IsLoggedIn)
+			{
+				return Redirect("~/Home/Enter");
+			}
 			return View();
 		}
 
         [HttpGet]
         public IActionResult Reports()
         {
+			if (!IsLoggedIn)
+			{
+				return Redirect("~/Home/Enter");
+			}
 			return View();
         }
 
         [HttpGet]
         public IActionResult MachinePeriodReport()
         {
+			if (!IsLoggedIn)
+			{
+				return Redirect("~/Home/Enter");
+			}
 			List<MachinePeriodReportViewModel> reports = new List<MachinePeriodReportViewModel>
             {
                 new MachinePeriodReportViewModel
@@ -163,6 +249,10 @@ namespace FactoryStorekeeperApp.Controllers
         [HttpGet]
         public IActionResult PlanProductionByProductReport()
         {
+			if (!IsLoggedIn)
+			{
+				return Redirect("~/Home/Enter");
+			}
 			List<ProductPlanProductionReportViewModel> productPlanProductions = new List<ProductPlanProductionReportViewModel>
             {
                 new ProductPlanProductionReportViewModel

Factory/FactoryStorekeeperApp/Program.cs

@@ -1,4 +1,4 @@
-using FactoryBuisinessLogic.BusinessLogics;
+using FactoryBusinessLogic.BusinessLogics;
 using FactoryContracts.BusinessLogicsContracts;
 using FactoryContracts.StoragesContracts;
 using FactoryDatabaseImplement.Implements;
@@ -6,17 +6,17 @@ using FactoryDatabaseImplement.Implements;
 var builder = WebApplication.CreateBuilder(args);
 
 // Add services to the container.
+builder.Services.AddTransient<IClientLogic, ClientLogic>();
 builder.Services.AddTransient<IMachineLogic, MachineLogic>();
 builder.Services.AddTransient<IProductLogic, ProductLogic>();
 builder.Services.AddTransient<IRequirementLogic, RequirementLogic>();
 builder.Services.AddTransient<IStorekeeperReportLogic, StorekeeperReportLogic>();
 
+builder.Services.AddTransient<IClientStorage, ClientStorage>();
 builder.Services.AddTransient<IMachineStorage, MachineStorage>();
 builder.Services.AddTransient<IProductStorage, ProductStorage>();
 builder.Services.AddTransient<IRequirementStorage, RequirementStorage>();
 
-//builder.Services.AddSingleton<AbstractMailWorker, MailKitWorker>();
-
 builder.Services.AddControllersWithViews();
 
 var app = builder.Build();

Factory/FactoryStorekeeperApp/Views/Home/Product.cshtml

@@ -14,27 +14,9 @@
 		<div class="col-4">Цена:</div>
 		<div class="col-8"><input type="number" id="price" name="price"/></div>
 	</div>
-    <div class="table-responsive-sm">
+    <div class="row">
         <div class="col-4">Станки:</div>
-        <table id="machinetable" class="table">
-            <thead>
-                <tr>
-                    <th></th>
-                    <th>Название</th>
-                </tr>
-            </thead>
-            <tbody>
-                @foreach (var machine in Model)
-                {
-                    <tr>
-                        <td>
-                            <input type="checkbox" id="machines" name="machines" value="@machine.Id" />
-                        </td>
-                        <td>@machine.MachineName</td>
-                    </tr>
-                }
-            </tbody>
-        </table>
+		<select id="machines" name="machines" class="form-control border border-dark rounded" multiple size="5" asp-items="@(new SelectList(Model, "Id", "MachineName"))"></select>
     </div>
 	<div class="row">
 		<div class="col-8"></div>

Factory/FactoryWorkerApp/Program.cs

@@ -1,6 +1,5 @@
 using FactoryContracts.BusinessLogicsContracts;
 using FactoryBusinessLogic.BusinessLogics;
-using FactoryBuisinessLogic.BusinessLogics;
 using FactoryContracts.StoragesContracts;
 using FactoryDatabaseImplement.Implements;
 using FactoryWorkerApp;