Initial commit

Backend/Repositorys/UserRepository.cs

@@ -0,0 +1,68 @@
+using Backend.Entitys;
+using Backend.Options;
+using Microsoft.Extensions.Options;
+
+namespace Backend.Repositorys; 
+
+public class UserRepository {
+    private DatabaseContext _context;
+    private TokenRepository _tokens;
+    private GroupRepository _groups;
+    private UserOptions _options;
+
+    public UserRepository(DatabaseContext context, TokenRepository tokens, GroupRepository groups, IOptions<UserOptions> options) {
+        _context = context;
+        _tokens = tokens;
+        _groups = groups;
+        _options = options.Value;
+    }
+
+    public IEnumerable<User> GetUsers() => _context.Users.OrderBy(user => user.Created);
+
+    public User GetUser(Guid userId) => _context.Users.SingleOrDefault(user => user.Id == userId);
+
+    public User CreateUser(UserEditor editor) {
+        var user = new User {
+            Id = Guid.NewGuid(),
+            Created = DateTime.Now,
+
+            Email = editor.Email,
+            FirstName = editor.FirstName,
+            LastName = editor.LastName,
+            Password = TokenRepository.Hash128(editor.Password, editor.Email),
+            Username = editor.Username
+        };
+
+        _context.Users.Add(user);
+        _context.SaveChanges();
+        _groups.AddPermissions(user.Id, _options.DefaultPermissions);
+
+        return user;
+    }
+
+    public void EditUser(Guid userId, UserEditor editor) {
+        var user = GetUser(userId);
+
+        string SetValue(string orig, string input, string hashed = null) {
+            if (!string.IsNullOrEmpty(input))
+                return !string.IsNullOrEmpty(hashed) ? hashed : input;
+
+            return orig;
+        }
+
+        user.Email = SetValue(user.Email, editor.Email);
+        user.FirstName = SetValue(user.FirstName, editor.FirstName);
+        user.LastName = SetValue(user.LastName, editor.LastName);
+        user.Username = SetValue(user.Username, editor.Username);
+        user.Password = SetValue(user.Password, editor.Password, TokenRepository.Hash128(editor.Password, editor.Email));
+
+        _context.SaveChanges();
+    }
+
+    public void DeleteUser(Guid userId) {
+        _context.Users.Remove(_context.Users.Single(user => user.Id == userId));
+        _context.Permissions.RemoveRange(_context.Permissions.Where(perm => perm.UserId == userId));
+        _tokens.DeleteUserTokens(userId);
+        _context.SaveChanges();
+    }
+}