feat: database (#9)

* Add EntityFramework package reference to project file

* feat: Implement database structure and database models. Also added database function specified on board

* refactor: Remove unnecessary using directive from SQLite.cs

* refactor: Remove database and migration files, update .gitignore to exclude Database.db and Migrations/

Author: Kaktus1549

.gitignore

@@ -55,3 +55,6 @@ Desktop.ini
 *.opendb
 *.scc
 
+
+Database.db
+Migrations/

Database/SQLite.cs

@@ -0,0 +1,56 @@
+using Microsoft.EntityFrameworkCore;
+
+public class Database : DbContext
+{
+    public DbSet<DBUser> Users { get; set; }
+    public DbSet<DBInbox> Inbox { get; set; }
+
+    private readonly string _dbPath;
+    public Database(string dbPath = "./Database.db")
+    {
+        _dbPath = dbPath;
+    }
+    protected override void OnConfiguring(DbContextOptionsBuilder optionsBuilder)
+    {
+        optionsBuilder.UseSqlite($"Data Source={_dbPath}");
+    }
+
+    public void RegisterUser(Guid userId, byte[]? rsaPublicKey)
+    {
+        var user = new DBUser
+        {
+            UserID = userId,
+            RsaPublicKey = rsaPublicKey
+        };
+        Users.Add(user);
+        SaveChanges();
+    }
+    public Dictionary<Guid, byte[]?> ListUsers()
+    {
+        var users = new Dictionary<Guid, byte[]?>();
+        foreach (var user in Users)
+        {
+            users.Add(user.UserID, user.RsaPublicKey);
+        }
+        return users;
+    }
+    public List<byte[]?> GetMsgsByUserID(Guid userId)
+    {
+        var inbox = new List<byte[]?>();
+        foreach (var message in Inbox.Where(m => m.UserID == userId))
+        {
+            inbox.Add(message.EncryptedMessage);
+        }
+        return inbox;
+    }
+    public void AddMsgToUser(Guid userId, byte[]? encryptedMessage)
+    {
+        var message = new DBInbox
+        {
+            UserID = userId,
+            EncryptedMessage = encryptedMessage
+        };
+        Inbox.Add(message);
+        SaveChanges();
+    }
+}

Models/DBmodels.cs

@@ -0,0 +1,17 @@
+using System.ComponentModel.DataAnnotations;
+using System.ComponentModel.DataAnnotations.Schema;
+
+public class DBUser{
+    [Key]
+    public Guid UserID { get; set; }
+    public byte[]? RsaPublicKey { get; set; }
+}
+
+public class DBInbox{
+    [Key]
+    public int Id { get; set; }
+    [ForeignKey("UserID")]
+    public DBUser? User { get; set; }
+    public Guid UserID { get; set; }
+    public byte[]? EncryptedMessage { get; set; }
+}

sutor-aes/sutor-aes.csproj

@@ -7,4 +7,14 @@
     <Nullable>enable</Nullable>
   </PropertyGroup>
 
+  <ItemGroup>
+    <PackageReference Include="EntityFramework" Version="6.5.1" />
+    <PackageReference Include="Microsoft.EntityFrameworkCore" Version="9.0.4" />
+    <PackageReference Include="Microsoft.EntityFrameworkCore.Design" Version="9.0.4">
+      <IncludeAssets>runtime; build; native; contentfiles; analyzers; buildtransitive</IncludeAssets>
+      <PrivateAssets>all</PrivateAssets>
+    </PackageReference>
+    <PackageReference Include="Microsoft.EntityFrameworkCore.Sqlite" Version="9.0.4" />
+  </ItemGroup>
+
 </Project>