Work on add contact to contact list

2025-06-12 02:01:06 +03:30
parent 3fdee8c102
commit fb19b55593
17 changed files with 1035 additions and 142 deletions
@@ -75,4 +75,115 @@ public class ChannelDatabase {
        }
        return result;
    }
+
+
+
+    public static List<UUID> getSubscriberUUIDs(UUID channelInternalUUID) {
+        List<UUID> subscriberIds = new ArrayList<>();
+        String sql = "SELECT user_id FROM channel_subscribe WHERE channel_id = ?";
+
+        try (Connection conn = ConnectionDb.connect();
+             PreparedStatement stmt = conn.prepareStatement(sql)) {
+            stmt.setObject(1, channelInternalUUID);
+
+            try (ResultSet rs = stmt.executeQuery()) {
+                while (rs.next()) {
+                    subscriberIds.add((UUID) rs.getObject("user_id"));
+                }
+            }
+        } catch (SQLException e) {
+            e.printStackTrace();
+        }
+
+        return subscriberIds;
+    }
+
+    public static Channel findByChannelId(String channelId) {
+        String sql = "SELECT * FROM channels WHERE channel_id = ?";
+        try (Connection conn = ConnectionDb.connect();
+             PreparedStatement stmt = conn.prepareStatement(sql)) {
+
+            stmt.setString(1, channelId);
+            ResultSet rs = stmt.executeQuery();
+
+            if (rs.next()) {
+                Channel channel = new Channel();
+                channel.setInternal_uuid(UUID.fromString(rs.getString("internal_uuid")));
+                channel.setChannel_id(rs.getString("channel_id"));
+                channel.setChannel_name(rs.getString("channel_name"));
+                channel.setImage_url(rs.getString("image_url"));
+                channel.setCreator_id(UUID.fromString(rs.getString("creator_id")));
+                channel.setDescription(rs.getString("description"));
+                channel.setCreated_at(rs.getTimestamp("created_at").toLocalDateTime());
+                return channel;
+            }
+        } catch (SQLException e) {
+            e.printStackTrace();
+        }
+        return null;
+    }
+
+
+
+
+    public static boolean isUserSubscribed(UUID userId, UUID channelInternalId) {
+        String sql = "SELECT * FROM channel_subscribe WHERE user_id = ? AND channel_id = ?";
+        try (Connection conn = ConnectionDb.connect(); PreparedStatement stmt = conn.prepareStatement(sql)) {
+            stmt.setObject(1, userId);
+            stmt.setObject(2, channelInternalId);
+            ResultSet rs = stmt.executeQuery();
+            return rs.next();
+        } catch (SQLException e) {
+            e.printStackTrace();
+        }
+        return false;
+    }
+
+    public static void addSubscriber(UUID channelInternalId, UUID userId) {
+        String sql = "INSERT INTO channel_subscribe (channel_id, user_id) VALUES (?, ?) ON CONFLICT DO NOTHING";
+        try (Connection conn = ConnectionDb.connect(); PreparedStatement stmt = conn.prepareStatement(sql)) {
+            stmt.setObject(1, channelInternalId);
+            stmt.setObject(2, userId);
+            stmt.executeUpdate();
+        } catch (SQLException e) {
+            e.printStackTrace();
+        }
+    }
+
+
+    public static UUID findInternalUUIDByChannelId(String channelId) {
+        String sql = "SELECT internal_uuid FROM channels WHERE channel_id = ?";
+        try (Connection conn = ConnectionDb.connect();
+             PreparedStatement stmt = conn.prepareStatement(sql)) {
+            stmt.setString(1, channelId);
+            ResultSet rs = stmt.executeQuery();
+            if (rs.next()) {
+                return (UUID) rs.getObject("internal_uuid");
+            }
+        } catch (SQLException e) {
+            e.printStackTrace();
+        }
+        return null;
+    }
+
+
+    public static boolean addSubscriberToChannel(UUID userId, UUID channelUUID) {
+        String sql = """
+        INSERT INTO channel_subscribers (channel_id, user_id)
+        VALUES (?, ?)
+        ON CONFLICT DO NOTHING
+    """;
+
+        try (Connection conn = ConnectionDb.connect();
+             PreparedStatement stmt = conn.prepareStatement(sql)) {
+            stmt.setObject(1, channelUUID);
+            stmt.setObject(2, userId);
+            return stmt.executeUpdate() > 0;
+        } catch (SQLException e) {
+            e.printStackTrace();
+            return false;
+        }
+    }
+
+
 }