Task 1 - attempt 1

.gitignore

@@ -401,13 +401,13 @@ FodyWeavers.xsd
 
 
 
-
+.vscode/
 .vscode/*
-!.vscode/settings.json
-!.vscode/tasks.json
-!.vscode/launch.json
-!.vscode/extensions.json
-!.vscode/*.code-snippets
+.vscode/settings.json
+.vscode/tasks.json
+.vscode/launch.json
+.vscode/extensions.json
+.vscode/*.code-snippets
 
 # Local History for Visual Studio Code
 .history/

Library.sln

@@ -0,0 +1,42 @@
+
+Microsoft Visual Studio Solution File, Format Version 12.00
+# Visual Studio Version 17
+VisualStudioVersion = 17.5.002.0
+MinimumVisualStudioVersion = 10.0.40219.1
+Project("{FAE04EC0-301F-11D3-BF4B-00C04F79EFBC}") = "DataLayer", "Library\DataLayer\DataLayer.csproj", "{37F35CAD-0E16-44DE-B1EC-B8806B87AF27}"
+EndProject
+Project("{FAE04EC0-301F-11D3-BF4B-00C04F79EFBC}") = "Tests", "Library\Tests\Tests.csproj", "{E482E32E-3CA7-46DD-83C9-B094E0AD8BA3}"
+EndProject
+Project("{2150E333-8FDC-42A3-9474-1A3956D46DE8}") = "Library", "Library", "{B858A003-F5DD-4F95-99D9-5A7560A0B8CF}"
+EndProject
+Project("{FAE04EC0-301F-11D3-BF4B-00C04F79EFBC}") = "LogicLayer", "Library\LogicLayer\LogicLayer.csproj", "{34D82E95-A0C6-4C12-8BB0-6836280E2491}"
+EndProject
+Global
+	GlobalSection(SolutionConfigurationPlatforms) = preSolution
+		Debug|Any CPU = Debug|Any CPU
+		Release|Any CPU = Release|Any CPU
+	EndGlobalSection
+	GlobalSection(ProjectConfigurationPlatforms) = postSolution
+		{37F35CAD-0E16-44DE-B1EC-B8806B87AF27}.Debug|Any CPU.ActiveCfg = Debug|Any CPU
+		{37F35CAD-0E16-44DE-B1EC-B8806B87AF27}.Debug|Any CPU.Build.0 = Debug|Any CPU
+		{37F35CAD-0E16-44DE-B1EC-B8806B87AF27}.Release|Any CPU.ActiveCfg = Release|Any CPU
+		{37F35CAD-0E16-44DE-B1EC-B8806B87AF27}.Release|Any CPU.Build.0 = Release|Any CPU
+		{E482E32E-3CA7-46DD-83C9-B094E0AD8BA3}.Debug|Any CPU.ActiveCfg = Debug|Any CPU
+		{E482E32E-3CA7-46DD-83C9-B094E0AD8BA3}.Debug|Any CPU.Build.0 = Debug|Any CPU
+		{E482E32E-3CA7-46DD-83C9-B094E0AD8BA3}.Release|Any CPU.ActiveCfg = Release|Any CPU
+		{E482E32E-3CA7-46DD-83C9-B094E0AD8BA3}.Release|Any CPU.Build.0 = Release|Any CPU
+		{34D82E95-A0C6-4C12-8BB0-6836280E2491}.Debug|Any CPU.ActiveCfg = Debug|Any CPU
+		{34D82E95-A0C6-4C12-8BB0-6836280E2491}.Debug|Any CPU.Build.0 = Debug|Any CPU
+		{34D82E95-A0C6-4C12-8BB0-6836280E2491}.Release|Any CPU.ActiveCfg = Release|Any CPU
+		{34D82E95-A0C6-4C12-8BB0-6836280E2491}.Release|Any CPU.Build.0 = Release|Any CPU
+	EndGlobalSection
+	GlobalSection(SolutionProperties) = preSolution
+		HideSolutionNode = FALSE
+	EndGlobalSection
+	GlobalSection(ExtensibilityGlobals) = postSolution
+		SolutionGuid = {B8DC2F37-8FC7-433C-BA78-56CAE077B47B}
+	EndGlobalSection
+	GlobalSection(NestedProjects) = preSolution
+		{34D82E95-A0C6-4C12-8BB0-6836280E2491} = {B858A003-F5DD-4F95-99D9-5A7560A0B8CF}
+	EndGlobalSection
+EndGlobal

Library/DataLayer/API/IBook.cs

@@ -0,0 +1,10 @@
+namespace DataLayer.API
+{
+    public interface IBook : IProduct
+    {
+        string Author { get; set; }
+        string Publisher { get; set; }
+        int Pages { get; set; }
+        DateTime PublicationDate { get; set; }
+    }
+}

Library/DataLayer/API/IDataContext.cs

@@ -0,0 +1,13 @@
+namespace DataLayer.API
+{
+    public interface IDataContext
+    {
+        public List<IUser> Users { get; set; }
+
+        public List<IProduct> Products { get; set; }
+
+        public List<IEvent> Events { get; set; }
+
+        public List<IState> States { get; set; }
+    }
+}

Library/DataLayer/API/IDataFiller.cs

@@ -0,0 +1,7 @@
+namespace DataLayer.API
+{
+    public interface IDataFiller
+    {
+        void Fill(IDataContext context);
+    }
+}

Library/DataLayer/API/IDataRepository.cs

@@ -0,0 +1,48 @@
+using DataLayer.Implementations;
+
+namespace DataLayer.API
+{
+    public interface IDataRepository
+    {
+        static IDataRepository CreateDataRepository(IDataContext dataContext)
+        {
+            return new DataRepository(dataContext);
+        }
+
+        #region User
+        void AddUser(IUser user);
+        IUser GetUser(string guid);
+        List<IUser> GetAllUsers();
+        void RemoveUser(string guid);
+        bool DoesUserExist(string guid);
+        void UpdateUser(IUser updateUser);
+        #endregion
+
+        #region Product
+        void AddProduct(IProduct product);
+        IProduct GetProduct(string guid);
+        List<IProduct> GetAllProducts();
+        IProduct GetProductByState(string stateGuid);
+        bool DoesProductExist(string guid);
+
+        void RemoveProduct(string guid);
+        #endregion
+
+        #region Event
+        void AddEvent(IEvent @event);
+        IEvent GetEvent(string guid);
+        List<IEvent> GetAllEvents();
+        List<IEvent> GetEventsByUser(string userGuid);
+        List<IEvent> GetEventsByProduct(string productGuid);
+        List<IEvent> GetEventsByState(string stateGuid);
+        void RemoveEvent(string guid);
+        #endregion
+
+        #region State
+        void AddState(IState state);
+        IState GetState(string guid);
+        List<IState> GetAllStates();
+        void RemoveState(string guid);
+        #endregion
+    }
+}

Library/DataLayer/API/IEvent.cs

@@ -0,0 +1,10 @@
+namespace DataLayer.API
+{
+    public interface IEvent
+    {
+        string Guid { get; }
+        IUser User { get; }
+        IState State { get; }
+        DateTime CreatedAt { get; }
+    }
+}

Library/DataLayer/API/IProduct.cs

@@ -0,0 +1,9 @@
+namespace DataLayer.API
+{
+    public interface IProduct
+    {
+        string Guid { get; }
+        string Name { get; set; }
+        double Price { get; set; }
+    }
+}

Library/DataLayer/API/IState.cs

@@ -0,0 +1,10 @@
+namespace DataLayer.API
+{
+    public interface IState
+    {
+        IProduct Product { get; set; }
+        int Quantity { get; set; }
+        DateTime LastUpdatedDate { get; }
+        string Guid { get; }
+    }
+}

Library/DataLayer/API/IUser.cs

@@ -0,0 +1,16 @@
+namespace DataLayer.API
+{
+    public interface IUser
+    {
+        // guid, because is more commonly used in contexts of the Microsoft ecosystem
+        string Guid { get; }
+        string FirstName { get; set; }
+        string LastName { get; set; }
+        string Email { get; set; }
+        double Balance { get; set; }
+        // stick to E.164 standard?
+        int PhoneNumber { get; set; }
+        // string Role { get; set; }
+        Dictionary<string, IProduct> ProductsDic { get; set; }
+    }
+}

Task_0/DistanceCalculator/DistanceCalculator.csproj → Library/DataLayer/DataLayer.csproj

@@ -1,10 +1,9 @@
 <Project Sdk="Microsoft.NET.Sdk">
 
   <PropertyGroup>
-    <OutputType>Exe</OutputType>
     <TargetFramework>net8.0</TargetFramework>
     <ImplicitUsings>enable</ImplicitUsings>
     <Nullable>enable</Nullable>
   </PropertyGroup>
 
-</Project>
+</Project>

Library/DataLayer/Implementations/Book.cs

@@ -0,0 +1,25 @@
+using DataLayer.API;
+
+namespace DataLayer.Implementations
+{
+    public class Book : IBook
+    {
+        public Book(string name, double price, string author, string publisher, int pages, DateTime publicationDate)
+        {
+            Guid = System.Guid.NewGuid().ToString();
+            Name = name;
+            Price = price;
+            Author = author;
+            Publisher = publisher;
+            Pages = pages;
+            PublicationDate = publicationDate;
+        }
+        public string Guid { get; }
+        public string Name { get; set; }
+        public double Price { get; set; }
+        public string Author { get; set; }
+        public string Publisher { get; set; }
+        public int Pages { get; set; }
+        public DateTime PublicationDate { get; set; }
+    }
+}

Library/DataLayer/Implementations/DataContex.cs

@@ -0,0 +1,21 @@
+using DataLayer.API;
+
+namespace DataLayer.Implementations
+{
+    public class DataContext : IDataContext
+    {
+        public List<IUser> Users { get; set; }
+        public List<IProduct> Products { get; set; }
+        public List<IEvent> Events { get; set; }
+        public List<IState> States { get; set; }
+
+        public DataContext()
+        {
+            Users = new List<IUser>();
+            Products = new List<IProduct>();
+            Events = new List<IEvent>();
+            States = new List<IState>();
+        }
+
+    }
+}

Library/DataLayer/Implementations/DataFillers/PresetFiller.cs

@@ -0,0 +1,37 @@
+using DataLayer.API;
+using DataLayer.Implementations.Events;
+
+namespace DataLayer.Implementations
+{
+    public class PresetFiller : IDataFiller 
+    {
+        public void Fill(IDataContext context)
+        {
+            context.Users.Add(new User("John", "Doe", "johndoe@email", 100, 123456789, null));
+            context.Users.Add(new User("Jane", "Doe", "janedoe@email", 200, 111111111, null));
+            context.Users.Add(new User("Alice", "Smith", "alicesmith@email", 300, 121212121, null));
+            context.Users.Add(new User("Bob", "Smith", "bobsmith@email", 400, 987654321, null));
+            context.Users.Add(new User("Charlie", "Brown", "charliebrown@email", 500, 999999999, null));
+
+            context.Products.Add(new Book("Old Man and the Sea", 10, "Ernest Hemingway", "Charles Sons", 300, new DateTime(1952, 1, 1)));
+            context.Products.Add(new Book("The Great Gatsby", 20, "F. Scott Fitzgerald", "Charles Sons", 400, new DateTime(1925, 1, 1)));
+            context.Products.Add(new Book("To Kill a Mockingbird", 30, "Harper Lee", "Charles Sons", 500, new DateTime(1960, 1, 1)));
+            context.Products.Add(new Book("1984", 40, "George Orwell", "Charles Sons", 600, new DateTime(1949, 1, 1)));
+            context.Products.Add(new Book("Brave New World", 50, "Aldous Huxley", "Charles Sons", 700, new DateTime(1932, 1, 1)));
+
+            context.States.Add(new State(context.Products[0], 5));
+            context.States.Add(new State(context.Products[1], 5));
+            context.States.Add(new State(context.Products[2], 5));
+            context.States.Add(new State(context.Products[3], 5));
+            context.States.Add(new State(context.Products[4], 5));
+
+            context.Events.Add(new Borrow(context.Users[0], context.States[0]));
+            context.Events.Add(new Borrow(context.Users[1], context.States[1]));
+            context.Events.Add(new Borrow(context.Users[3], context.States[3]));
+            context.Events.Add(new Return(context.Users[0], context.States[0]));
+            context.Events.Add(new Return(context.Users[1], context.States[1]));
+            context.Events.Add(new Return(context.Users[3], context.States[3]));
+            context.Events.Add(new Delivery(context.Users[4], context.States[4], 10));
+        }
+    }
+}