false

src/main/java/dev/dao/UserDao.java

@@ -1,23 +1,51 @@
 package dev.dao;
 
+import dev.database.DatabaseConnection;
 import dev.model.User;
 
+import java.sql.*;
+
 public class UserDao {
 
     public boolean save(User user) {
+        String sql = "INSERT INTO users (username, password, email) VALUES (?, ?, ?)";
 
-        // TODO:
-        // Insert user into database
+        try(Connection conn = DatabaseConnection.getConnection();
+            PreparedStatement pstmt = conn.prepareStatement(sql)){
 
-        return false;
+            pstmt.setString(1, user.getUsername());
+            pstmt.setString(2, user.getPassword());
+            pstmt.setString(3, user.getEmail());
+
+            int affectedRows = pstmt.executeUpdate();
+            return affectedRows > 0;
+
+        }catch (SQLException e) {
+            System.err.println("Error saving user: " + e.getMessage());
+            return false;
+        }
     }
 
     public User findByUsername(String username) {
+        String sql = "SELECT * FROM users WHERE username = ?";
 
-        // TODO:
-        // Find a user by username
+        try(Connection conn = DatabaseConnection.getConnection();
+            PreparedStatement pstmt = conn.prepareStatement(sql)){
 
+            pstmt.setString(1, username);
+            ResultSet rs = pstmt.executeQuery();
+
+            if (rs.next()){
+                return new User(
+                        rs.getInt("id"),
+                        rs.getString("username"),
+                        rs.getString("password"),
+                        rs.getString("email")
+                );
+            }
+        } catch (SQLException e) {
+            System.err.println("Error finding user: " + e.getMessage());
+        }
         return null;
     }
-
 }