Work on telegram setting

src/main/java/org/to/telegramfinalproject/Database/ContactDatabase.java

@@ -1,5 +1,6 @@
 package org.to.telegramfinalproject.Database;
 
+import org.json.JSONObject;
 import org.to.telegramfinalproject.Models.Contact;
 import org.to.telegramfinalproject.Models.ContactEntry;
 import org.to.telegramfinalproject.Models.User;
@@ -99,6 +100,32 @@ public class ContactDatabase {
     }
 
 
+    public static List<JSONObject> getBlockedUsers(UUID userId) {
+        String sql = """
+            SELECT u.internal_uuid, u.user_id, u.profile_name
+            FROM contacts c
+            JOIN users u ON u.internal_uuid = c.contact_id
+            WHERE c.user_id = ? AND c.is_blocked = TRUE
+            ORDER BY u.profile_name NULLS LAST, u.user_id
+        """;
+        List<JSONObject> out = new ArrayList<>();
+        try (Connection conn = ConnectionDb.connect();
+             PreparedStatement ps = conn.prepareStatement(sql)) {
+            ps.setObject(1, userId);
+            try (ResultSet rs = ps.executeQuery()) {
+                while (rs.next()) {
+                    JSONObject j = new JSONObject();
+                    j.put("internal_uuid", rs.getObject("internal_uuid").toString());
+                    j.put("user_id", rs.getString("user_id"));
+                    j.put("profile_name", rs.getString("profile_name"));
+                    out.add(j);
+                }
+            }
+        } catch (SQLException e) {
+            e.printStackTrace();
+        }
+        return out;
+    }
 
     public boolean unblockContact(UUID user_id, UUID contact_id) {
         String sql = "UPDATE contacts SET is_blocked = FALSE WHERE user_id = ? AND contact_id = ?";

src/main/java/org/to/telegramfinalproject/Database/userDatabase.java

@@ -409,5 +409,42 @@ public class userDatabase {
 
         return "Unknown";
     }
+
+    public static String getPasswordHash(UUID userId) {
+        String sql = "SELECT password FROM users WHERE internal_uuid = ?";
+        try (Connection conn = ConnectionDb.connect();
+             PreparedStatement ps = conn.prepareStatement(sql)) {
+            ps.setObject(1, userId);
+            try (ResultSet rs = ps.executeQuery()) {
+                if (rs.next()) return rs.getString("password");
+            }
+        } catch (SQLException e) { e.printStackTrace(); }
+        return null;
+    }
+
+    public static boolean updateUsername(UUID userId, String newUsername) throws SQLException {
+        String sql = "UPDATE users SET username = ? WHERE internal_uuid = ?";
+        try (Connection conn = ConnectionDb.connect();
+             PreparedStatement ps = conn.prepareStatement(sql)) {
+            ps.setString(1, newUsername);
+            ps.setObject(2, userId);
+            ps.executeUpdate();
+            return true;
+        } catch (SQLException e) {
+            // 23505 = unique_violation در PostgreSQL
+            if ("23505".equals(e.getSQLState())) throw e;
+            throw e;
+        }
+    }
+
+    public static boolean updatePasswordHash(UUID userId, String newHash) {
+        String sql = "UPDATE users SET password = ? WHERE internal_uuid = ?";
+        try (Connection conn = ConnectionDb.connect();
+             PreparedStatement ps = conn.prepareStatement(sql)) {
+            ps.setString(1, newHash);
+            ps.setObject(2, userId);
+            return ps.executeUpdate() > 0;
+        } catch (SQLException e) { e.printStackTrace(); return false; }
+    }
 }