Files
Telegram-Final-Project/src/main/java/org/to/telegramfinalproject/Database/MessageDatabase.java
T
2025-06-30 22:22:08 +03:30

364 lines
12 KiB
Java

package org.to.telegramfinalproject.Database;
import org.to.telegramfinalproject.Models.Message;
import java.sql.*;
import java.time.LocalDateTime;
import java.util.ArrayList;
import java.util.List;
import java.util.UUID;
import java.util.stream.Collectors;
public class MessageDatabase {
public static void save(Message message) {
String sql = """
INSERT INTO messages (
message_id, sender_id, receiver_type, receiver_id, content,
message_type, file_url, send_at, status,
reply_to_id, is_edited, original_message_id, forwarded_by, forwarded_from
) VALUES (?, ?, ?, ?, ?, ?, ?, ?, ?, ?, ?, ?, ?, ?)
""";
try (Connection conn = ConnectionDb.connect();
PreparedStatement stmt = conn.prepareStatement(sql)) {
stmt.setObject(1, message.getMessage_id());
stmt.setObject(2, message.getSender_id());
stmt.setString(3, message.getReceiver_type());
stmt.setObject(4, message.getReceiver_id());
stmt.setString(5, message.getContent());
stmt.setString(6, message.getMessage_type());
stmt.setString(7, message.getFile_url());
stmt.setObject(8, message.getSend_at());
stmt.setString(9, message.getStatus());
stmt.setObject(10, message.getReply_to_id());
stmt.setBoolean(11, message.isIs_edited());
stmt.setObject(12, message.getOriginal_message_id());
stmt.setObject(13, message.getForwarded_by());
stmt.setObject(14, message.getForwarded_from());
stmt.executeUpdate();
} catch (SQLException e) {
System.err.println("❌ Error saving message: " + e.getMessage());
e.printStackTrace();
}
}
public void markMessageAsRead(UUID messageId, UUID userId) {
String sql = "INSERT INTO message_receipts (message_id, user_id) VALUES (?, ?) ON CONFLICT DO NOTHING";
try (Connection conn = ConnectionDb.connect();
PreparedStatement stmt = conn.prepareStatement(sql)) {
stmt.setObject(1, messageId);
stmt.setObject(2, userId);
stmt.executeUpdate();
} catch (SQLException e) {
e.printStackTrace();
}
}
public static List<Message> getUnreadMessages(UUID userId) {
List<Message> messages = new ArrayList<>();
String sql = """
SELECT m.* FROM messages m
LEFT JOIN message_receipts r ON m.message_id = r.message_id AND r.user_id = ?
WHERE r.user_id IS NULL
AND (
(m.receiver_type = 'private' AND m.receiver_id = ?)
OR
(m.receiver_type = 'group' AND EXISTS (
SELECT 1 FROM group_members gm WHERE gm.group_id = m.receiver_id AND gm.user_id = ?
))
OR
(m.receiver_type = 'channel' AND EXISTS (
SELECT 1 FROM channel_subscribers cs WHERE cs.channel_id = m.receiver_id AND cs.user_id = ?
))
)
""";
try (Connection conn = ConnectionDb.connect();
PreparedStatement stmt = conn.prepareStatement(sql)) {
stmt.setObject(1, userId);
stmt.setObject(2, userId);
stmt.setObject(3, userId);
stmt.setObject(4, userId);
ResultSet rs = stmt.executeQuery();
while (rs.next()) {
messages.add(new Message(
UUID.fromString(rs.getString("message_id")),
rs.getObject("sender_id") != null ? UUID.fromString(rs.getString("sender_id")) : null,
rs.getString("receiver_type"),
UUID.fromString(rs.getString("receiver_id")),
rs.getString("content"),
rs.getString("message_type"),
rs.getString("file_url"),
rs.getTimestamp("send_at").toLocalDateTime(),
rs.getString("status"),
rs.getObject("reply_to_id") != null ? UUID.fromString(rs.getString("reply_to_id")) : null,
rs.getBoolean("is_edited"),
rs.getObject("original_message_id") != null ? UUID.fromString(rs.getString("original_message_id")) : null,
rs.getObject("forwarded_by") != null ? UUID.fromString(rs.getString("forwarded_by")) : null,
rs.getObject("forwarded_from") != null ? UUID.fromString(rs.getString("forwarded_from")) : null
));
}
} catch (SQLException e) {
e.printStackTrace();
}
return messages;
}
public static LocalDateTime getLastMessageTimeBetween(UUID user1, UUID user2, String type) {
String sql = """
SELECT MAX(send_at) FROM messages
WHERE receiver_type = ?
AND (
(sender_id = ? AND receiver_id = ?)
OR (sender_id = ? AND receiver_id = ?)
)
""";
try (Connection conn = ConnectionDb.connect();
PreparedStatement stmt = conn.prepareStatement(sql)) {
stmt.setString(1, type);
stmt.setObject(2, user1);
stmt.setObject(3, user2);
stmt.setObject(4, user2);
stmt.setObject(5, user1);
ResultSet rs = stmt.executeQuery();
if (rs.next()) {
Timestamp ts = rs.getTimestamp(1);
return ts != null ? ts.toLocalDateTime() : null;
}
} catch (SQLException e) {
e.printStackTrace();
}
return null;
}
public static LocalDateTime getLastMessageTime(UUID receiverId, String type) {
String sql = "SELECT MAX(send_at) FROM messages WHERE receiver_id = ? AND receiver_type = ?";
try (Connection conn = ConnectionDb.connect();
PreparedStatement stmt = conn.prepareStatement(sql)) {
stmt.setObject(1, receiverId);
stmt.setString(2, type);
ResultSet rs = stmt.executeQuery();
if (rs.next()) {
Timestamp ts = rs.getTimestamp(1);
return ts != null ? ts.toLocalDateTime() : null;
}
} catch (SQLException e) {
e.printStackTrace();
}
return null;
}
public static Message extractMessage(ResultSet rs) throws SQLException {
return new Message(
UUID.fromString(rs.getString("message_id")),
UUID.fromString(rs.getString("sender_id")),
rs.getString("receiver_type"),
UUID.fromString(rs.getString("receiver_id")),
rs.getString("content"),
rs.getString("message_type"),
rs.getString("file_url"),
rs.getTimestamp("send_at").toLocalDateTime(),
rs.getString("status"),
(UUID) rs.getObject("reply_to_id"),
rs.getBoolean("is_edited"),
(UUID) rs.getObject("original_message_id"),
(UUID) rs.getObject("forwarded_by"),
(UUID) rs.getObject("forwarded_from")
);
}
public static List<Message> searchMessagesForUser(UUID userId, String keyword) {
List<Message> result = new ArrayList<>();
String sql = """
SELECT * FROM messages
WHERE receiver_type = 'private'
AND (sender_id = ? OR receiver_id = ?)
AND content ILIKE ?
ORDER BY send_at DESC
""";
try (Connection conn = ConnectionDb.connect();
PreparedStatement stmt = conn.prepareStatement(sql)) {
stmt.setObject(1, userId);
stmt.setObject(2, userId);
stmt.setString(3, "%" + keyword + "%");
ResultSet rs = stmt.executeQuery();
while (rs.next()) {
result.add(extractMessage(rs));
}
} catch (SQLException e) {
e.printStackTrace();
}
return result;
}
public static List<Message> privateChatHistory(UUID user1, UUID user2) {
List<Message> result = new ArrayList<>();
String sql = """
SELECT * FROM messages
WHERE receiver_type = 'private'
AND (
(sender_id = ? AND receiver_id = ?)
OR (sender_id = ? AND receiver_id = ?)
)
ORDER BY send_at
""";
try (Connection conn = ConnectionDb.connect();
PreparedStatement stmt = conn.prepareStatement(sql)) {
stmt.setObject(1, user1);
stmt.setObject(2, user2);
stmt.setObject(3, user2);
stmt.setObject(4, user1);
ResultSet rs = stmt.executeQuery();
while (rs.next()) {
result.add(extractMessage(rs));
}
} catch (SQLException e) {
e.printStackTrace();
}
return result;
}
public static List<Message> groupChatHistory(UUID groupId) {
List<Message> result = new ArrayList<>();
String sql = """
SELECT * FROM messages
WHERE receiver_type = 'group' AND receiver_id = ?
ORDER BY send_at
""";
try (Connection conn = ConnectionDb.connect();
PreparedStatement stmt = conn.prepareStatement(sql)) {
stmt.setObject(1, groupId);
ResultSet rs = stmt.executeQuery();
while (rs.next()) {
result.add(extractMessage(rs));
}
} catch (SQLException e) {
e.printStackTrace();
}
return result;
}
public static List<Message> channelChatHistory(UUID channelId) {
List<Message> result = new ArrayList<>();
String sql = """
SELECT * FROM messages
WHERE receiver_type = 'channel' AND receiver_id = ?
ORDER BY send_at
""";
try (Connection conn = ConnectionDb.connect();
PreparedStatement stmt = conn.prepareStatement(sql)) {
stmt.setObject(1, channelId);
ResultSet rs = stmt.executeQuery();
while (rs.next()) {
result.add(extractMessage(rs));
}
} catch (SQLException e) {
e.printStackTrace();
}
return result;
}
public static List<Message> searchMessagesInGroups(List<UUID> groupIds, String keyword) {
List<Message> result = new ArrayList<>();
if (groupIds.isEmpty()) return result;
String placeholders = groupIds.stream().map(id -> "?").collect(Collectors.joining(", "));
String sql = """
SELECT * FROM messages
WHERE receiver_type = 'group'
AND receiver_id IN (%s)
AND content ILIKE ?
ORDER BY send_at DESC
""".formatted(placeholders);
try (Connection conn = ConnectionDb.connect();
PreparedStatement stmt = conn.prepareStatement(sql)) {
int i = 1;
for (UUID id : groupIds) {
stmt.setObject(i++, id);
}
stmt.setString(i, "%" + keyword + "%");
ResultSet rs = stmt.executeQuery();
while (rs.next()) {
result.add(extractMessage(rs));
}
} catch (SQLException e) {
e.printStackTrace();
}
return result;
}
public static List<Message> searchMessagesInChannels(List<UUID> channelIds, String keyword) {
List<Message> result = new ArrayList<>();
if (channelIds.isEmpty()) return result;
String placeholders = channelIds.stream().map(id -> "?").collect(Collectors.joining(", "));
String sql = """
SELECT * FROM messages
WHERE receiver_type = 'channel'
AND receiver_id IN (%s)
AND content ILIKE ?
ORDER BY send_at DESC
""".formatted(placeholders);
try (Connection conn = ConnectionDb.connect();
PreparedStatement stmt = conn.prepareStatement(sql)) {
int i = 1;
for (UUID id : channelIds) {
stmt.setObject(i++, id);
}
stmt.setString(i, "%" + keyword + "%");
ResultSet rs = stmt.executeQuery();
while (rs.next()) {
result.add(extractMessage(rs));
}
} catch (SQLException e) {
e.printStackTrace();
}
return result;
}
}