Files
Telegram-Final-Project/src/main/java/org/to/telegramfinalproject/Database/ContactDatabase.java
T
2025-08-12 15:50:21 +03:30

355 lines
13 KiB
Java

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;
import java.sql.*;
import java.time.LocalDateTime;
import java.util.ArrayList;
import java.util.List;
import java.util.UUID;
public class ContactDatabase {
public ContactDatabase(){}
private static Connection getConnection() throws SQLException {
return ConnectionDb.connect();
}
public static boolean addContact(UUID userId, UUID contactId) {
String sql = """
INSERT INTO contacts (user_id, contact_id)
VALUES (?, ?)
ON CONFLICT DO NOTHING
""";
try (Connection conn = ConnectionDb.connect();
PreparedStatement stmt = conn.prepareStatement(sql)) {
stmt.setObject(1, userId);
stmt.setObject(2, contactId);
return stmt.executeUpdate() > 0;
} catch (SQLException e) {
e.printStackTrace();
return false;
}
}
public static List<UUID> getContactUUIDs(UUID userId) {
List<Contact> contacts = getContacts(userId);
List<UUID> contactIds = new ArrayList<>();
for (Contact c : contacts) {
contactIds.add(c.getContact_id());
}
return contactIds;
}
public static boolean removeContact(UUID user_id, UUID contact_id) {
String sql = "DELETE FROM contacts WHERE user_id = ? AND contact_id = ?";
try (Connection connection = getConnection()) {
PreparedStatement stmt = connection.prepareStatement(sql);
stmt.setObject(1, user_id);
stmt.setObject(2, contact_id);
return stmt.executeUpdate() > 0;
} catch (SQLException e) {
e.printStackTrace();
return false;
}
}
public static boolean toggleBlock(UUID userId, UUID targetId) {
String selectSql = "SELECT is_blocked FROM contacts WHERE user_id = ? AND contact_id = ?";
String updateSql = "UPDATE contacts SET is_blocked = ? WHERE user_id = ? AND contact_id = ?";
try (Connection conn = getConnection();
PreparedStatement selectStmt = conn.prepareStatement(selectSql)) {
selectStmt.setObject(1, userId);
selectStmt.setObject(2, targetId);
ResultSet rs = selectStmt.executeQuery();
if (rs.next()) {
boolean currentlyBlocked = rs.getBoolean("is_blocked");
try (PreparedStatement updateStmt = conn.prepareStatement(updateSql)) {
updateStmt.setBoolean(1, !currentlyBlocked);
updateStmt.setObject(2, userId);
updateStmt.setObject(3, targetId);
updateStmt.executeUpdate();
}
return !currentlyBlocked;
} else {
String insertSql = "INSERT INTO contacts (user_id, contact_id, is_blocked) VALUES (?, ?, ?)";
try (PreparedStatement insertStmt = conn.prepareStatement(insertSql)) {
insertStmt.setObject(1, userId);
insertStmt.setObject(2, targetId);
insertStmt.setBoolean(3, true);
insertStmt.executeUpdate();
}
return true;
}
} catch (SQLException e) {
e.printStackTrace();
}
return false;
}
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 = ?";
try (Connection connection = getConnection()) {
PreparedStatement stmt = connection.prepareStatement(sql);
stmt.setObject(1, user_id);
stmt.setObject(2, contact_id);
return stmt.executeUpdate() > 0;
} catch (SQLException e) {
e.printStackTrace();
return false;
}
}
public static List<Contact> getContacts(UUID user_id) {
List<Contact> contacts = new ArrayList<>();
String sql = "SELECT * FROM contacts WHERE user_id = ?";
try (Connection connection = getConnection()) {
PreparedStatement stmt = connection.prepareStatement(sql);
stmt.setObject(1, user_id);
ResultSet rs = stmt.executeQuery();
while (rs.next()) {
UUID contactId = (UUID) rs.getObject("contact_id");
boolean isBlocked = rs.getBoolean("is_blocked");
Timestamp addedAt = rs.getTimestamp("added_at");
Contact contact = new Contact(user_id, contactId);
contact.setIs_blocked(isBlocked);
contact.setAdd_at(addedAt.toLocalDateTime());
contacts.add(contact);
}
} catch (SQLException e) {
e.printStackTrace();
}
return contacts;
}
public static boolean existsContact(UUID user_id, UUID contact_id) {
String sql = "SELECT 1 FROM contacts WHERE user_id = ? AND contact_id = ? LIMIT 1"; // stop searching when find the first item in DB(LIMIT 1)
try (Connection connection = getConnection()) {
PreparedStatement stmt = connection.prepareStatement(sql);
stmt.setObject(1, user_id);
stmt.setObject(2, contact_id);
ResultSet rs = stmt.executeQuery();
return rs.next();
} catch (SQLException e) {
e.printStackTrace();
return false;
}
}
public boolean eitherBlocks(UUID userA, UUID userB) {
return isBlocked(userA, userB) || isBlocked(userB, userA);
}
public static boolean isBlocked(UUID user_id, UUID contact_id) {
String sql = "SELECT is_blocked FROM contacts WHERE user_id = ? AND contact_id = ?";
try (Connection connection = getConnection()) {
PreparedStatement stmt = connection.prepareStatement(sql);
stmt.setObject(1, user_id);
stmt.setObject(2, contact_id);
ResultSet rs = stmt.executeQuery();
if (rs.next()) {
return rs.getBoolean("is_blocked");
}
} catch (SQLException e) {
e.printStackTrace();
}
return false;
}
public static boolean deleteChatOneSide(UUID currentUserId, UUID otherUserId) {
String sql = """
UPDATE private_chat
SET user1_deleted = CASE WHEN user1_id = ? THEN TRUE ELSE user1_deleted END,
user2_deleted = CASE WHEN user2_id = ? THEN TRUE ELSE user2_deleted END
WHERE (user1_id = ? AND user2_id = ?) OR (user1_id = ? AND user2_id = ?)
""";
try (Connection conn = getConnection();
PreparedStatement stmt = conn.prepareStatement(sql)) {
stmt.setObject(1, currentUserId);
stmt.setObject(2, currentUserId);
stmt.setObject(3, currentUserId);
stmt.setObject(4, otherUserId);
stmt.setObject(5, otherUserId);
stmt.setObject(6, currentUserId);
return stmt.executeUpdate() > 0;
} catch (SQLException e) {
e.printStackTrace();
return false;
}
}
public static boolean deleteChatBoth(UUID currentUserId, UUID otherUserId) {
String sqlDeleteMessages = """
DELETE FROM messages
WHERE receiver_type = 'private' AND (
(sender_id = ? AND receiver_id = ?) OR
(sender_id = ? AND receiver_id = ?)
)
""";
String sqlDeleteChat = """
DELETE FROM private_chat
WHERE (user1_id = ? AND user2_id = ?) OR (user1_id = ? AND user2_id = ?)
""";
try (Connection conn = getConnection()) {
conn.setAutoCommit(false);
try (PreparedStatement stmtMsg = conn.prepareStatement(sqlDeleteMessages);
PreparedStatement stmtChat = conn.prepareStatement(sqlDeleteChat)) {
stmtMsg.setObject(1, currentUserId);
stmtMsg.setObject(2, otherUserId);
stmtMsg.setObject(3, otherUserId);
stmtMsg.setObject(4, currentUserId);
stmtMsg.executeUpdate();
stmtChat.setObject(1, currentUserId);
stmtChat.setObject(2, otherUserId);
stmtChat.setObject(3, otherUserId);
stmtChat.setObject(4, currentUserId);
stmtChat.executeUpdate();
conn.commit();
return true;
} catch (SQLException e) {
conn.rollback();
e.printStackTrace();
return false;
}
} catch (SQLException e) {
e.printStackTrace();
return false;
}
}
public static List<ContactEntry> getContactEntries(UUID userId) {
List<ContactEntry> entries = new ArrayList<>();
String sql = """
SELECT c.contact_id, c.is_blocked, u.user_id, u.profile_name, u.image_url
FROM contacts c
JOIN users u ON c.contact_id = u.internal_uuid
WHERE c.user_id = ?
""";
try (Connection conn = ConnectionDb.connect();
PreparedStatement ps = conn.prepareStatement(sql)) {
ps.setObject(1, userId);
ResultSet rs = ps.executeQuery();
while (rs.next()) {
UUID contactId = UUID.fromString(rs.getString("contact_id"));
boolean isBlocked = rs.getBoolean("is_blocked");
String userIdStr = rs.getString("user_id");
String profileName = rs.getString("profile_name");
String imageUrl = rs.getString("image_url");
ContactEntry entry = new ContactEntry(contactId, userIdStr, profileName, imageUrl, isBlocked);
entries.add(entry);
}
} catch (SQLException e) {
e.printStackTrace();
}
return entries;
}
public static List<ContactEntry> searchContacts(UUID userId, String searchTerm) {
List<ContactEntry> results = new ArrayList<>();
String sql = """
SELECT u.internal_uuid, u.user_id, c.is_blocked
FROM contacts c
JOIN users u ON c.contact_id = u.internal_uuid
WHERE c.user_id = ?
AND (u.user_id ILIKE ? OR u.profile_name ILIKE ?)
""";
try (Connection connection = getConnection();
PreparedStatement stmt = connection.prepareStatement(sql)) {
stmt.setObject(1, userId);
stmt.setString(2, "%" + searchTerm + "%");
stmt.setString(3, "%" + searchTerm + "%");
ResultSet rs = stmt.executeQuery();
userDatabase userDB = new userDatabase();
while (rs.next()) {
UUID contactId = (UUID) rs.getObject("internal_uuid");
String displayId = rs.getString("user_id");
String contact_displayId = userDB.getUserId(contactId);
String profileName = userDB.getProfileName(contactId);
String imageUrl = userDB.getProfilePicture(contactId);
boolean isBlocked = rs.getBoolean("is_blocked");
String lastSeenString = userDB.getLastSeen(contactId);
// Convert to LocalDateTime
LocalDateTime lastSeen = null;
if (!"Unknown".equals(lastSeenString)) {
lastSeen = LocalDateTime.parse(lastSeenString);
}
results.add(new ContactEntry(contactId, displayId, contact_displayId, profileName, imageUrl, isBlocked, lastSeen));
}
} catch (SQLException e) {
e.printStackTrace();
}
return results;
}
}