Add bash script to pull the latest version of desktop client and run

README.md

@@ -57,6 +57,19 @@ uv run main.py
 
 You can also build a standalone executable for the desktop app using the provided `build.ps1` script (requires PyInstaller).
 
+### Quick Run on Linux
+
+If you just want to run the desktop client without cloning the repo manually, use the launcher script. Prerequisites: `git` and [`uv`](https://docs.astral.sh/uv/).
+
+```bash
+# Download the script
+curl -fsSL https://gitea.peterstockings.com/peterstockings/video-sync/raw/branch/master/desktop-client/run-videosync.sh -o run-videosync.sh
+chmod +x run-videosync.sh
+
+# Run (clones on first launch, pulls updates on subsequent runs)
+./run-videosync.sh
+```
+
 ## Deployment
 
 ```bash

desktop-client/chat_widgets.py

@@ -0,0 +1,82 @@
+from PyQt6.QtWidgets import (
+    QWidget, QVBoxLayout, QHBoxLayout, QLabel, QFrame,
+    QMainWindow
+)
+from PyQt6.QtCore import Qt, pyqtSignal
+
+
+class ChatBubble(QWidget):
+    def __init__(self, author, text, time_str, is_self, on_link_clicked):
+        super().__init__()
+        layout = QHBoxLayout(self)
+        layout.setContentsMargins(5, 2, 5, 2)
+        
+        # Container for the actual bubble
+        self.bubble = QFrame()
+        self.bubble.setObjectName("bubble")
+        
+        bg_color = "#0084FF" if is_self else "#2a2a2e"
+        text_color = "#FFFFFF"
+        author_color = "#E1E1E1" if is_self else "#3ea6ff"
+        
+        self.bubble.setStyleSheet(f"""
+            #bubble {{
+                background-color: {bg_color};
+                border-radius: 12px;
+            }}
+        """)
+        
+        bubble_layout = QVBoxLayout(self.bubble)
+        bubble_layout.setContentsMargins(10, 8, 10, 6)
+        bubble_layout.setSpacing(2)
+        
+        # Author
+        author_lbl = QLabel("You" if is_self else author)
+        author_lbl.setStyleSheet(f"color: {author_color}; font-weight: bold; font-size: 11px; background: transparent;")
+        bubble_layout.addWidget(author_lbl)
+        
+        # Text
+        self.text_lbl = QLabel(text)
+        self.text_lbl.setWordWrap(True)
+        self.text_lbl.setStyleSheet(f"color: {text_color}; font-size: 13px; border: none; background: transparent;")
+        self.text_lbl.setOpenExternalLinks(False)
+        self.text_lbl.linkActivated.connect(on_link_clicked)
+        bubble_layout.addWidget(self.text_lbl)
+        
+        # Time
+        time_lbl = QLabel(time_str)
+        time_lbl.setAlignment(Qt.AlignmentFlag.AlignRight)
+        time_lbl.setStyleSheet(f"color: {text_color}; font-size: 9px; opacity: 0.6; border: none; background: transparent;")
+        bubble_layout.addWidget(time_lbl)
+        
+        if is_self:
+            layout.addStretch()
+            layout.addWidget(self.bubble)
+        else:
+            layout.addWidget(self.bubble)
+            layout.addStretch()
+
+
+class SystemMessageWidget(QWidget):
+    def __init__(self, text):
+        super().__init__()
+        layout = QHBoxLayout(self)
+        layout.setContentsMargins(0, 5, 0, 5)
+        lbl = QLabel(text)
+        lbl.setAlignment(Qt.AlignmentFlag.AlignCenter)
+        lbl.setWordWrap(True)
+        lbl.setStyleSheet("color: #888; font-style: italic; font-size: 11px; background: transparent;")
+        layout.addWidget(lbl)
+
+
+class ChatPopoutWindow(QMainWindow):
+    closed = pyqtSignal()
+
+    def __init__(self, parent=None):
+        super().__init__(parent)
+        self.setWindowTitle("Live Chat")
+        self.resize(350, 600)
+
+    def closeEvent(self, event):
+        self.closed.emit()
+        super().closeEvent(event)

desktop-client/commands.py

@@ -0,0 +1,106 @@
+from utils import format_time_short
+
+HELP_TEXT = """
+<b>Available Commands:</b><br>
+• <b>/play</b>, <b>/pause</b> - Control playback<br>
+• <b>/seek [time]</b> - Seek (e.g., 1:23, +30s, -1m)<br>
+• <b>/tag [now|time] [name]</b> - Create a highlight<br>
+• <b>/time</b> - Show current timestamp<br>
+• <b>/help</b> - Show this message<br><br>
+<b>Keyboard Shortcuts:</b><br>
+• <b>Space</b>: Play/Pause<br>
+• <b>F</b>: Fullscreen | <b>M</b>: Mute<br>
+• <b>Left/Right</b>: Seek ±5s<br>
+• <b>Up/Down</b>: Volume ±5%<br>
+• <b>Enter</b>: Focus chat | <b>Esc</b>: Clear focus
+"""
+
+
+def parse_time_arg(arg: str, current_ms: int, length_ms: int):
+    """Parses a time string (absolute time, offset like +30s, or 'now') and returns the target time in MS. Returns None on error."""
+    if arg == "now":
+        return current_ms
+
+    try:
+        target_ms = 0
+        if arg.startswith('+') or arg.startswith('-'):
+            modifier = 1 if arg.startswith('+') else -1
+            num_str = arg[1:]
+            if num_str.endswith('s'): val = float(num_str[:-1]) * 1000
+            elif num_str.endswith('m'): val = float(num_str[:-1]) * 60 * 1000
+            elif num_str.endswith('h'): val = float(num_str[:-1]) * 3600 * 1000
+            else: val = float(num_str) * 1000
+            target_ms = current_ms + (val * modifier)
+        elif ":" in arg:
+            parts = arg.split(":")
+            parts.reverse()
+            if len(parts) > 0: target_ms += float(parts[0]) * 1000
+            if len(parts) > 1: target_ms += float(parts[1]) * 60 * 1000
+            if len(parts) > 2: target_ms += float(parts[2]) * 3600 * 1000
+        else:
+            if arg.endswith('s'): target_ms = float(arg[:-1]) * 1000
+            elif arg.endswith('m'): target_ms = float(arg[:-1]) * 60 * 1000
+            elif arg.endswith('h'): target_ms = float(arg[:-1]) * 3600 * 1000
+            else: target_ms = float(arg) * 1000
+            
+        if length_ms > 0:
+            return max(0, min(target_ms, length_ms))
+        return max(0, target_ms)
+    except ValueError:
+        return None
+
+
+def handle_chat_command(cmd: str, parts: list, widget):
+    """Handle a slash command. Returns True if the command was handled."""
+    if cmd == "/play":
+        if not widget.vlc_player.is_playing:
+            widget.toggle_playback()
+        widget.add_system_message(" ".join(parts))
+        return True
+        
+    elif cmd == "/pause":
+        if widget.vlc_player.is_playing:
+            widget.toggle_playback()
+        widget.add_system_message(" ".join(parts))
+        return True
+        
+    elif cmd == "/seek":
+        if len(parts) > 1:
+            if widget._handle_seek_command(parts[1]):
+                widget.add_system_message(" ".join(parts))
+            else:
+                widget.add_system_message("Invalid time format. Use: 1:23, +30s, -1m")
+        else:
+            widget.add_system_message("Usage: /seek [time]")
+        return True
+        
+    elif cmd == "/tag":
+        if len(parts) > 1:
+            time_arg = parts[1].lower()
+            tag_name = " ".join(parts[2:])
+            
+            current_ms = widget.vlc_player.current_time_ms
+            length_ms = widget.vlc_player.get_length()
+            target_ms = parse_time_arg(time_arg, current_ms, length_ms)
+            
+            if target_ms is not None:
+                time_str = format_time_short(target_ms)
+                msg = f"{time_str} {tag_name}".strip()
+                widget.chat_message_ready.emit(msg)
+            else:
+                widget.add_system_message("Invalid time format. Use: now, 1:23, +30s, -1m")
+        else:
+            widget.add_system_message("Usage: /tag [now|time] [name]")
+        return True
+        
+    elif cmd == "/time":
+        current_ms = widget.vlc_player.current_time_ms
+        time_str = format_time_short(current_ms)
+        widget.add_system_message(f"Current time: <a href='seek:{time_str}' style='color: #66b3ff; text-decoration: none;'>{time_str}</a>")
+        return True
+        
+    elif cmd == "/help":
+        widget.add_system_message(HELP_TEXT)
+        return True
+    
+    return False

desktop-client/custom_widgets.py

@@ -0,0 +1,48 @@
+from PyQt6.QtWidgets import QSlider, QToolTip
+from PyQt6.QtCore import Qt
+
+
+class ClickableSlider(QSlider):
+    def __init__(self, *args, **kwargs):
+        super().__init__(*args, **kwargs)
+        self._get_tooltip_text = None
+        self.setMouseTracking(True)
+
+    def set_tooltip_provider(self, provider_func):
+        self._get_tooltip_text = provider_func
+
+    def mousePressEvent(self, event):
+        super().mousePressEvent(event)
+        if event.button() == Qt.MouseButton.LeftButton:
+            val = 0
+            if self.orientation() == Qt.Orientation.Horizontal:
+                if self.width() > 0:
+                    val = self.minimum() + ((self.maximum() - self.minimum()) * event.pos().x()) / self.width()
+            else:
+                if self.height() > 0:
+                    val = self.minimum() + ((self.maximum() - self.minimum()) * (self.height() - event.pos().y())) / self.height()
+            
+            val = max(self.minimum(), min(self.maximum(), int(val)))
+            self.setValue(val)
+            self.sliderMoved.emit(val)
+
+            if self._get_tooltip_text:
+                text = self._get_tooltip_text(val)
+                if text:
+                    QToolTip.showText(event.globalPosition().toPoint(), text, self)
+
+    def mouseMoveEvent(self, event):
+        super().mouseMoveEvent(event)
+        if self._get_tooltip_text and self.width() > 0:
+            hover_val = self.minimum() + ((self.maximum() - self.minimum()) * event.pos().x()) / self.width()
+            hover_val = max(self.minimum(), min(self.maximum(), int(hover_val)))
+            text = self._get_tooltip_text(hover_val)
+            if text:
+                QToolTip.showText(event.globalPosition().toPoint(), text, self)
+
+    def mouseReleaseEvent(self, event):
+        super().mouseReleaseEvent(event)
+        if event.button() == Qt.MouseButton.LeftButton:
+            # Explicitly emit sliderReleased on mouse release
+            # to ensure single clicks on the track also trigger the release logic
+            self.sliderReleased.emit()

desktop-client/lobby_widget.py

@@ -1,10 +1,25 @@
 import os
+import re
 from PyQt6.QtWidgets import (
     QWidget, QVBoxLayout, QHBoxLayout, QLabel, QLineEdit, QPushButton, 
-    QFileDialog, QFrame
+    QFileDialog, QFrame, QApplication
 )
 from PyQt6.QtCore import Qt, pyqtSignal
 
+class RoomCodeInput(QLineEdit):
+    """QLineEdit that auto-fills from clipboard if it looks like a room code."""
+    def focusInEvent(self, event):
+        super().focusInEvent(event)
+        if not self.text().strip():
+            self._try_paste_room_code()
+    
+    def _try_paste_room_code(self):
+        clipboard = QApplication.clipboard()
+        text = (clipboard.text() or "").strip().upper()
+        if re.match(r'^[A-Z0-9]{4,8}$', text):
+            self.setText(text)
+            self.selectAll()
+
 class LobbyWidget(QWidget):
     # Signals to communicate to VlcSyncApp
     create_requested = pyqtSignal(str, str, str, object)  # username, path, filename, size
@@ -80,7 +95,7 @@ class LobbyWidget(QWidget):
         # Join Room Panel
         join_panel = QVBoxLayout()
         join_panel.addWidget(QLabel("Join a Room"))
-        self.room_code_input = QLineEdit()
+        self.room_code_input = RoomCodeInput()
         self.room_code_input.setPlaceholderText("e.g. ABC123")
         self.join_room_btn = QPushButton("Join Room")
         self.join_room_btn.setObjectName("secondaryBtn")

desktop-client/main.py

@@ -52,7 +52,9 @@ class VlcSyncApp(QMainWindow):
         # Network Service
         self.sync_client = SyncClientThread("wss://video-sync.peterstockings.com/ws")
         self.sync_client.connected.connect(self.on_ws_connected)
+        self.sync_client.connected.connect(lambda: self.room_widget.update_connection_status(True))
         self.sync_client.disconnected.connect(self.on_ws_disconnected)
+        self.sync_client.disconnected.connect(lambda: self.room_widget.update_connection_status(False))
         self.sync_client.room_joined.connect(self.on_room_joined)
         self.sync_client.room_rejoined.connect(self.on_room_rejoined)
         self.sync_client.room_error.connect(self.on_room_error)
@@ -61,6 +63,7 @@ class VlcSyncApp(QMainWindow):
         self.sync_client.chat_message.connect(self.room_widget.add_chat_message)
         self.sync_client.system_message.connect(self.room_widget.add_system_message)
         self.sync_client.sync_event.connect(self.room_widget.handle_sync_event)
+        self.sync_client.latency_updated.connect(self.room_widget.update_latency)
 
         self.apply_stylesheet()
 
@@ -187,6 +190,11 @@ class VlcSyncApp(QMainWindow):
         
         self.room_widget.setup_room(self.room_code, self.username, self.local_file_name, self.local_file_path, start_time_s)
             
+        chat_history = msg.get("chatHistory", [])
+        if chat_history:
+            for chat in chat_history:
+                self.room_widget.add_chat_message(chat.get("username", "Unknown"), chat.get("message", ""), chat.get("timestamp", 0))
+        
         users = msg.get("users", [])
         if users:
             self.room_widget.update_users(users)
@@ -194,13 +202,17 @@ class VlcSyncApp(QMainWindow):
         if state:
             self.room_widget.handle_sync_event(state)
 
-        chat_history = msg.get("chatHistory", [])
+        self.room_widget.add_system_message("Welcome to the room! 👋")
-        if chat_history:
-            for chat in chat_history:
-                self.room_widget.add_chat_message(chat.get("username", "Unknown"), chat.get("message", ""), chat.get("timestamp", 0))
 
     def on_room_rejoined(self, msg: dict):
         self.room_widget.set_room_code_display(self.room_code)
+        
+        chat_history = msg.get("chatHistory", [])
+        if chat_history:
+            self.room_widget.clear_chat()
+            for chat in chat_history:
+                self.room_widget.add_chat_message(chat.get("username", "Unknown"), chat.get("message", ""), chat.get("timestamp", 0))
+        
         self.room_widget.add_system_message("✅ Reconnected to the room.")
 
         users = msg.get("users", [])
@@ -345,6 +357,75 @@ class VlcSyncApp(QMainWindow):
                 background: #333;
             }
             
+            #seekBar {
+                border: none;
+                background: transparent;
+            }
+            #seekBar::groove:horizontal {
+                height: 4px;
+                background: #444;
+                border: none;
+                border-radius: 2px;
+            }
+            #seekBar::sub-page:horizontal {
+                background: #ff0000;
+                height: 4px;
+                border-radius: 2px;
+            }
+            #seekBar::add-page:horizontal {
+                background: #444;
+                height: 4px;
+                border-radius: 2px;
+            }
+            #seekBar::handle:horizontal {
+                background: #ff0000;
+                width: 12px;
+                height: 12px;
+                margin: -4px 0;
+                border-radius: 6px;
+            }
+            #seekBar::handle:horizontal:hover {
+                background: #ff3333;
+                width: 14px;
+                height: 14px;
+                margin: -5px 0;
+                border-radius: 7px;
+            }
+            
+            #volumeSlider {
+                border: none;
+                background: transparent;
+            }
+            #volumeSlider::groove:horizontal {
+                height: 4px;
+                background: #444;
+                border: none;
+                border-radius: 2px;
+            }
+            #volumeSlider::sub-page:horizontal {
+                background: #fff;
+                height: 4px;
+                border-radius: 2px;
+            }
+            #volumeSlider::add-page:horizontal {
+                background: #444;
+                height: 4px;
+                border-radius: 2px;
+            }
+            #volumeSlider::handle:horizontal {
+                background: #fff;
+                width: 10px;
+                height: 10px;
+                margin: -3px 0;
+                border-radius: 5px;
+            }
+            #volumeSlider::handle:horizontal:hover {
+                width: 12px;
+                height: 12px;
+                margin: -4px 0;
+                border-radius: 6px;
+            }
+            
             #chatContainer {
                 background-color: #111;
                 border-left: 1px solid #333;
@@ -364,7 +445,6 @@ class VlcSyncApp(QMainWindow):
             #chatMessages {
                 background-color: transparent;
                 border: none;
-                color: #f1f1f1;
             }
             
             #chatMessages QScrollBar:vertical {
@@ -374,12 +454,12 @@ class VlcSyncApp(QMainWindow):
                 margin: 0px;
             }
             #chatMessages QScrollBar::handle:vertical {
-                background: #555;
+                background: #333;
                 min-height: 20px;
                 border-radius: 4px;
             }
             #chatMessages QScrollBar::handle:vertical:hover {
-                background: #666;
+                background: #444;
             }
             #chatMessages QScrollBar::add-line:vertical, #chatMessages QScrollBar::sub-line:vertical {
                 height: 0px;
@@ -387,6 +467,10 @@ class VlcSyncApp(QMainWindow):
             #chatMessages QScrollBar::add-page:vertical, #chatMessages QScrollBar::sub-page:vertical {
                 background: none;
             }
+            
+            #bubble {
+                border: none;
+            }
         """)
 
 if __name__ == "__main__":

desktop-client/room_widget.py

@@ -4,56 +4,21 @@ import html
 import re
 from PyQt6.QtWidgets import (
     QWidget, QVBoxLayout, QHBoxLayout, QLabel, QLineEdit, 
-    QPushButton, QFrame, QSlider, QTextEdit, QTextBrowser, QApplication, QToolTip
+    QPushButton, QFrame, QTextEdit, QTextBrowser, QApplication, QSplitter,
+    QScrollArea
 )
-from PyQt6.QtCore import Qt, pyqtSignal, QTimer
+from PyQt6.QtCore import Qt, pyqtSignal, QTimer, QEvent
-from PyQt6.QtGui import QIcon
+from PyQt6.QtGui import QIcon, QCursor
+
 import uuid
+import urllib.parse
 
 from vlc_player import VLCSyncPlayer
+from utils import format_time_hms, format_time_short
+from chat_widgets import ChatBubble, SystemMessageWidget, ChatPopoutWindow
+from custom_widgets import ClickableSlider
+from commands import parse_time_arg, handle_chat_command
 
-class ClickableSlider(QSlider):
-    def __init__(self, *args, **kwargs):
-        super().__init__(*args, **kwargs)
-        self._get_tooltip_text = None
-
-    def set_tooltip_provider(self, provider_func):
-        self._get_tooltip_text = provider_func
-
-    def mousePressEvent(self, event):
-        super().mousePressEvent(event)
-        if event.button() == Qt.MouseButton.LeftButton:
-            val = 0
-            if self.orientation() == Qt.Orientation.Horizontal:
-                if self.width() > 0:
-                    val = self.minimum() + ((self.maximum() - self.minimum()) * event.pos().x()) / self.width()
-            else:
-                if self.height() > 0:
-                    val = self.minimum() + ((self.maximum() - self.minimum()) * (self.height() - event.pos().y())) / self.height()
-            
-            val = max(self.minimum(), min(self.maximum(), int(val)))
-            self.setValue(val)
-            self.sliderMoved.emit(val)
-
-            if self._get_tooltip_text:
-                text = self._get_tooltip_text(val)
-                if text:
-                    QToolTip.showText(event.globalPosition().toPoint(), text, self)
-
-    def mouseMoveEvent(self, event):
-        super().mouseMoveEvent(event)
-        if event.buttons() & Qt.MouseButton.LeftButton:
-            if self._get_tooltip_text:
-                text = self._get_tooltip_text(self.value())
-                if text:
-                    QToolTip.showText(event.globalPosition().toPoint(), text, self)
-
-    def mouseReleaseEvent(self, event):
-        super().mouseReleaseEvent(event)
-        if event.button() == Qt.MouseButton.LeftButton:
-            # Explicitly emit sliderReleased on mouse release
-            # to ensure single clicks on the track also trigger the release logic
-            self.sliderReleased.emit()
 
 class ExpectedVlcEvent:
     def __init__(self, action: str, req_id: str, target_val=None):
@@ -77,13 +42,26 @@ class RoomWidget(QWidget):
         self.current_users = []
         self._is_first_user_update = True
         
+        self.popout_window = None
+        
         self._setup_ui()
         
     def _setup_ui(self):
-        layout = QHBoxLayout(self)
+        layout = QVBoxLayout(self)
         layout.setContentsMargins(0, 0, 0, 0)
         layout.setSpacing(0)
         
+        self.splitter = QSplitter(Qt.Orientation.Horizontal)
+        self.splitter.setHandleWidth(3)
+        self.splitter.setStyleSheet("""
+            QSplitter::handle {
+                background-color: #333;
+            }
+            QSplitter::handle:hover {
+                background-color: #3ea6ff;
+            }
+        """)
+        
         # --- Left Side: Video ---
         video_container = QWidget()
         video_layout = QVBoxLayout(video_container)
@@ -106,6 +84,12 @@ class RoomWidget(QWidget):
         self.copy_code_btn.setToolTip("Copy Room Code")
         self.copy_code_btn.clicked.connect(self.copy_room_code)
         
+        self.status_dot = QLabel("●")
+        self.status_dot.setFixedWidth(20)
+        self.status_dot.setStyleSheet("color: #888; font-size: 14px; background: transparent;")
+        self.status_dot.setToolTip("Connecting...")
+        self._latency_ms = None
+        
         self.room_file_badge = QLabel("📄 No file")
         self.room_file_badge.setObjectName("fileBadge")
         
@@ -115,6 +99,7 @@ class RoomWidget(QWidget):
         
         topbar_layout.addWidget(self.room_code_display)
         topbar_layout.addWidget(self.copy_code_btn)
+        topbar_layout.addWidget(self.status_dot)
         topbar_layout.addStretch()
         topbar_layout.addWidget(self.room_file_badge)
         topbar_layout.addWidget(self.leave_btn)
@@ -125,10 +110,10 @@ class RoomWidget(QWidget):
         self.video_frame.setAttribute(Qt.WidgetAttribute.WA_NativeWindow, True)
         
         # Controls Bar
-        controls = QFrame()
+        self.controls_bar = QFrame()
-        controls.setObjectName("controlsBar")
+        self.controls_bar.setObjectName("controlsBar")
-        controls.setFixedHeight(60)
+        self.controls_bar.setFixedHeight(60)
-        controls_layout = QHBoxLayout(controls)
+        controls_layout = QHBoxLayout(self.controls_bar)
         
         self.play_btn = QPushButton("▶")
         self.play_btn.setFixedSize(40, 40)
@@ -170,19 +155,39 @@ class RoomWidget(QWidget):
         controls_layout.addSpacing(10)
         controls_layout.addWidget(self.fullscreen_btn)
         
+        # Chat toggle
+        self.chat_toggle_btn = QPushButton("💬")
+        self.chat_toggle_btn.setFixedSize(40, 40)
+        self.chat_toggle_btn.setObjectName("iconBtn")
+        self.chat_toggle_btn.setToolTip("Toggle Chat")
+        self.chat_toggle_btn.clicked.connect(self.toggle_chat)
+        controls_layout.addWidget(self.chat_toggle_btn)
+        
         video_layout.addWidget(self.topbar)
         video_layout.addWidget(self.video_frame)
-        video_layout.addWidget(controls)
+        video_layout.addWidget(self.controls_bar)
         
         # --- Right Side: Chat ---
         self.chat_container = QFrame()
         self.chat_container.setObjectName("chatContainer")
-        self.chat_container.setFixedWidth(320)
+        self.chat_container.setMinimumWidth(200)
+        self.chat_container.setMaximumWidth(500)
         chat_layout = QVBoxLayout(self.chat_container)
         
         chat_header = QLabel("Live Chat")
         chat_header.setObjectName("chatHeader")
         
+        self.popout_btn = QPushButton("↗")
+        self.popout_btn.setObjectName("iconBtn")
+        self.popout_btn.setFixedSize(24, 24)
+        self.popout_btn.setToolTip("Pop out chat")
+        self.popout_btn.clicked.connect(self.popout_chat)
+        
+        header_layout = QHBoxLayout()
+        header_layout.addWidget(chat_header)
+        header_layout.addStretch()
+        header_layout.addWidget(self.popout_btn)
+        
         self.users_lbl = QLabel("0 watching")
         self.users_lbl.setObjectName("usersLbl")
         
@@ -231,12 +236,22 @@ class RoomWidget(QWidget):
         tags_layout.addWidget(self.tags_header_btn)
         tags_layout.addWidget(self.tags_list)
         
-        self.chat_messages = QTextBrowser()
+        self.chat_messages = QScrollArea()
+        self.chat_messages.setWidgetResizable(True)
         self.chat_messages.setObjectName("chatMessages")
-        self.chat_messages.setOpenExternalLinks(False)
+        self.chat_messages.setStyleSheet("background-color: transparent; border: none;")
-        self.chat_messages.setOpenLinks(False)
+        
-        self.chat_messages.anchorClicked.connect(self.on_chat_link_clicked)
+        self.chat_content = QWidget()
-        self.chat_messages.setHtml("Welcome to the room! 👋")
+        self.chat_content.setObjectName("chatContent")
+        self.chat_content.setStyleSheet("background: transparent;")
+        self.chat_content_layout = QVBoxLayout(self.chat_content)
+        self.chat_content_layout.setAlignment(Qt.AlignmentFlag.AlignTop)
+        self.chat_content_layout.setContentsMargins(0, 0, 0, 0)
+        self.chat_content_layout.setSpacing(0)
+        
+        self.chat_messages.setWidget(self.chat_content)
+        self.chat_messages.toPlainText = self.toPlainText # For test compatibility
+        
         
         chat_input_layout = QHBoxLayout()
         self.chat_input = QLineEdit()
@@ -250,21 +265,27 @@ class RoomWidget(QWidget):
         self.chat_send_btn.clicked.connect(self.send_chat)
         self.chat_input.returnPressed.connect(self.send_chat)
         
-        chat_layout.addWidget(chat_header)
+        chat_layout.addLayout(header_layout)
         chat_layout.addWidget(self.users_lbl)
         chat_layout.addWidget(self.tags_container)
         chat_layout.addWidget(self.chat_messages, 1)
         chat_layout.addLayout(chat_input_layout)
         
-        layout.addWidget(video_container, 1)
+        self.splitter.addWidget(video_container)
-        layout.addWidget(self.chat_container)
+        self.splitter.addWidget(self.chat_container)
+        self.splitter.setStretchFactor(0, 1)
+        self.splitter.setStretchFactor(1, 0)
+        self.splitter.setSizes([700, 320])
+        
+        layout.addWidget(self.splitter)
         
         # Prevent UI components from stealing focus (which breaks spacebar shortcuts)
         for w in [self.copy_code_btn, self.leave_btn, self.play_btn, self.fullscreen_btn, 
-                  self.chat_send_btn, self.seekbar, self.volume_slider, self.tags_header_btn]:
+                  self.chat_send_btn, self.seekbar, self.volume_slider, self.tags_header_btn, 
+                  self.chat_toggle_btn, self.popout_btn]:
             w.setFocusPolicy(Qt.FocusPolicy.NoFocus)
             
-        # specifically for chat_messages, we allow clicking links, but avoid focus stealing
+        # scroll area handles focus properly
         self.chat_messages.setFocusPolicy(Qt.FocusPolicy.ClickFocus)
         self.setFocusPolicy(Qt.FocusPolicy.StrongFocus)
         
@@ -276,12 +297,23 @@ class RoomWidget(QWidget):
         
         self.play_btn.clicked.connect(self.toggle_playback)
 
+        # Fullscreen auto-hide timer
+        self._fs_hide_timer = QTimer()
+        self._fs_hide_timer.setSingleShot(True)
+        self._fs_hide_timer.setInterval(3000)
+        self._fs_hide_timer.timeout.connect(self._hide_fullscreen_controls)
+        
+        # Mouse movement polling (needed because VLC's native window eats mouse events)
+        self._last_mouse_pos = None
+        self._mouse_poll_timer = QTimer()
+        self._mouse_poll_timer.setInterval(200)
+        self._mouse_poll_timer.timeout.connect(self._check_mouse_movement)
+
     def get_seekbar_tooltip(self, value):
         length_ms = self.vlc_player.get_length()
         if length_ms > 0:
             target_ms = int((value / 1000.0) * length_ms)
-            s = max(0, target_ms) // 1000
+            return format_time_hms(target_ms)
-            return f"{s//3600:02d}:{(s%3600)//60:02d}:{s%60:02d}"
         return ""
 
     def setup_room(self, room_code: str, username: str, file_name: str, file_path: str, start_time_s: float = 0.0):
@@ -289,7 +321,12 @@ class RoomWidget(QWidget):
         self.username = username
         self.set_room_code_display(room_code)
         self.room_file_badge.setText(f"📄 {file_name}")
-        self.chat_messages.setHtml("Welcome to the room! 👋")
+        
+        # Clear chat
+        for i in reversed(range(self.chat_content_layout.count())):
+            self.chat_content_layout.itemAt(i).widget().setParent(None)
+        
+        
         self.current_users = []
         self._is_first_user_update = True
         
@@ -305,6 +342,26 @@ class RoomWidget(QWidget):
     def set_room_code_display(self, text: str):
         self.room_code_display.setText(f"Room: {text}")
 
+    def update_connection_status(self, connected: bool):
+        if connected:
+            self.status_dot.setStyleSheet("color: #4BB543; font-size: 14px; background: transparent;")
+            self.status_dot.setToolTip("Connected")
+        else:
+            self.status_dot.setStyleSheet("color: #ff4e45; font-size: 14px; background: transparent;")
+            self.status_dot.setToolTip("Disconnected")
+            self._latency_ms = None
+
+    def update_latency(self, latency_ms: int):
+        self._latency_ms = latency_ms
+        if latency_ms < 100:
+            color = "#4BB543"  # green
+        elif latency_ms < 250:
+            color = "#f0ad4e"  # yellow
+        else:
+            color = "#ff4e45"  # red
+        self.status_dot.setStyleSheet(f"color: {color}; font-size: 14px; background: transparent;")
+        self.status_dot.setToolTip(f"Latency: {latency_ms}ms")
+
     def toggle_tags_panel(self):
         if self.tags_list.isHidden():
             self.tags_list.show()
@@ -313,6 +370,60 @@ class RoomWidget(QWidget):
             self.tags_list.hide()
             self.tags_header_btn.setText("▶ Highlights")
 
+    def toggle_chat(self):
+        if self.popout_window:
+            self.popout_window.activateWindow()
+            self.popout_window.raise_()
+            return
+
+        if self.chat_container.isVisible():
+            self._saved_chat_width = self.chat_container.width()
+            self.chat_container.hide()
+        else:
+            self.chat_container.show()
+            w = getattr(self, '_saved_chat_width', 320)
+            sizes = self.splitter.sizes()
+            self.splitter.setSizes([sizes[0] - w, w])
+
+    def popout_chat(self):
+        if self.popout_window:
+            return
+
+        self.popout_window = ChatPopoutWindow(self.window())
+        self.popout_window.setWindowTitle(f"Chat - {self.room_code}")
+        
+        # Detach from layout
+        self.chat_container.setParent(None)
+        
+        # Set central widget
+        central = QWidget()
+        l = QVBoxLayout(central)
+        l.setContentsMargins(0, 0, 0, 0)
+        l.addWidget(self.chat_container)
+        self.popout_window.setCentralWidget(central)
+        
+        self.popout_window.closed.connect(self.on_popout_closed)
+        self.popout_window.show()
+        
+        self.popout_btn.hide()
+        
+        # Collapse the space in splitter
+        self.splitter.setSizes([self.width(), 0])
+
+    def on_popout_closed(self):
+        self.popout_window = None
+        
+        # Re-attach to layout
+        self.chat_container.setParent(self)
+        self.splitter.insertWidget(1, self.chat_container)
+        
+        self.popout_btn.show()
+        
+        # Restore splitter sizes
+        w = getattr(self, '_saved_chat_width', 320)
+        self.splitter.setSizes([self.width() - w, w])
+        self.chat_container.show()
+
     def toggle_fullscreen(self):
         top_window = self.window()
         if top_window.isFullScreen():
@@ -320,11 +431,35 @@ class RoomWidget(QWidget):
             self.fullscreen_btn.setText("⛶")
             self.chat_container.show()
             self.topbar.show()
+            self.controls_bar.show()
+            self._fs_hide_timer.stop()
+            self._mouse_poll_timer.stop()
+            self.setCursor(QCursor(Qt.CursorShape.ArrowCursor))
         else:
             top_window.showFullScreen()
             self.fullscreen_btn.setText("🗗")
             self.chat_container.hide()
             self.topbar.hide()
+            self._last_mouse_pos = QCursor.pos()
+            self._fs_hide_timer.start()
+            self._mouse_poll_timer.start()
+
+    def _hide_fullscreen_controls(self):
+        if self.window().isFullScreen():
+            self.controls_bar.hide()
+            self.setCursor(QCursor(Qt.CursorShape.BlankCursor))
+
+    def _show_fullscreen_controls(self):
+        self.controls_bar.show()
+        self.setCursor(QCursor(Qt.CursorShape.ArrowCursor))
+        self._fs_hide_timer.start()
+
+    def _check_mouse_movement(self):
+        pos = QCursor.pos()
+        if pos != self._last_mouse_pos:
+            self._last_mouse_pos = pos
+            if not self.controls_bar.isVisible():
+                self._show_fullscreen_controls()
 
     def toggle_mute(self):
         current_vol = self.vlc_player.get_volume()
@@ -455,12 +590,8 @@ class RoomWidget(QWidget):
     def on_vlc_time(self, time_ms: int):
         length_ms = self.vlc_player.get_length()
         if length_ms > 0:
-            def fmt(ms):
-                s = max(0, ms) // 1000
-                return f"{s//3600:02d}:{(s%3600)//60:02d}:{s%60:02d}"
-                
             if not self.seekbar.isSliderDown():
-                self.time_lbl.setText(f"{fmt(time_ms)} / {fmt(length_ms)}")
+                self.time_lbl.setText(f"{format_time_hms(time_ms)} / {format_time_hms(length_ms)}")
                 progress = int((time_ms / length_ms) * 1000)
                 self.seekbar.blockSignals(True)
                 self.seekbar.setValue(progress)
@@ -504,10 +635,7 @@ class RoomWidget(QWidget):
         length_ms = self.vlc_player.get_length()
         if length_ms > 0:
             target_ms = int((value / 1000.0) * length_ms)
-            def fmt(ms):
+            self.time_lbl.setText(f"{format_time_hms(target_ms)} / {format_time_hms(length_ms)}")
-                s = max(0, ms) // 1000
-                return f"{s//3600:02d}:{(s%3600)//60:02d}:{s%60:02d}"
-            self.time_lbl.setText(f"{fmt(target_ms)} / {fmt(length_ms)}")
             # Scrub the video locally in real-time
             self._tell_vlc_and_expect("seek", target_ms / 1000.0)
 
@@ -520,6 +648,17 @@ class RoomWidget(QWidget):
 
     def on_volume_changed(self, value):
         self.vlc_player.set_volume(value)
+        self._update_vol_icon(value)
+
+    def _update_vol_icon(self, volume):
+        if volume == 0:
+            self.vol_icon.setText("🔇")
+        elif volume < 33:
+            self.vol_icon.setText("🔈")
+        elif volume < 66:
+            self.vol_icon.setText("🔉")
+        else:
+            self.vol_icon.setText("🔊")
 
     # --- Incoming Sync Logic ---
     def handle_sync_event(self, msg: dict):
@@ -538,8 +677,7 @@ class RoomWidget(QWidget):
             if action == "play": self.add_system_message(f"{username} pressed play")
             elif action == "pause": self.add_system_message(f"{username} paused")
             elif action == "seek":
-                def fmt(s): return f"{int(s)//3600:02d}:{(int(s)%3600)//60:02d}:{int(s)%60:02d}"
+                self.add_system_message(f"{username} seeked to {format_time_hms(int(position_s * 1000))}")
-                self.add_system_message(f"{username} seeked to {fmt(position_s)}")
 
     def update_users(self, users: list):
         if self._is_first_user_update:
@@ -561,9 +699,21 @@ class RoomWidget(QWidget):
 
     def on_chat_link_clicked(self, url):
         link = url.toString()
+        print(f"DEBUG: Link clicked: {link}")
         if link.startswith("seek:"):
-            time_str = link[5:]
+            # Format: 'seek:MM:SS?tag=TagName'
+            data = link[5:]
+            if "?" in data and "tag=" in data:
+                time_str, query = data.split("?", 1)
+                tag_name = ""
+                for pair in query.split("&"):
+                    if pair.startswith("tag="):
+                        tag_name = urllib.parse.unquote(pair[4:])
+                        break
+                self.add_system_message(f"Seeking to <b>{tag_name}</b> ({time_str})")
                 self._handle_seek_command(time_str)
+            else:
+                self._handle_seek_command(data)
 
     def add_chat_message(self, author: str, text: str, timestamp: int):
         try:
@@ -579,27 +729,63 @@ class RoomWidget(QWidget):
         pattern = r'\b(\d{1,2}:\d{2}(?::\d{2})?)\b'
         linked_text = re.sub(pattern, r'<a href="seek:\1" style="color: #66b3ff; text-decoration: none;">\1</a>', safe_text)
         
-        new_msg = f"<b>{safe_author}</b>: {linked_text} <span style='color: gray; font-size: 10px;'>{time_str}</span>"
+        is_self = author == self.username
-        self.chat_messages.append(new_msg)
         
         # Auto-extract tags added by users directly via /tag command
-        # This will catch messages that look like purely a tag command
+        # We look for the pattern generated by /tag: "MM:SS tag text"
-        # (Since we just append the output of /tag to chat)
+        # Since we just emit the text for /tag, it won't be linked yet in the raw text
-        match = re.match(r'^<a href="seek:(\d{1,2}:\d{2}(?::\d{2})?)[^>]+>([^<]+)</a>\s+(.+)$', linked_text)
+        tag_match = re.match(r'^(\d{1,2}:\d{2}(?::\d{2})?)\s+(.+)$', text)
-        if match:
+        if tag_match:
-            # It's a tag! Add it to the highlights panel
+            self.add_highlight(tag_match.group(1), tag_match.group(2), author)
-            self.add_highlight(match.group(1), match.group(3), safe_author)
+            return # Don't show this as a chat message bubble
+        
+        bubble = ChatBubble(author, linked_text, time_str, is_self, self._handle_link_from_bubble)
+        self.chat_content_layout.addWidget(bubble)
+        self._scroll_to_bottom()
+        
+    def _handle_link_from_bubble(self, url_str):
+        if url_str.startswith("seek:"):
+            time_str = url_str[5:]
+            self._handle_seek_command(time_str)
+
+    def _scroll_to_bottom(self):
+        # Allow layout to finish before scrolling
+        QTimer.singleShot(10, lambda: self.chat_messages.verticalScrollBar().setValue(
+            self.chat_messages.verticalScrollBar().maximum()
+        ))
+        
+    def toPlainText(self):
+        # For compatibility with existing tests
+        text = ""
+        for i in range(self.chat_content_layout.count()):
+            item = self.chat_content_layout.itemAt(i)
+            if not item: continue
+            w = item.widget()
+            if isinstance(w, ChatBubble):
+                text += w.text_lbl.text() + "\n"
+            elif isinstance(w, SystemMessageWidget):
+                lbl = w.findChild(QLabel)
+                if lbl: text += lbl.text() + "\n"
+        return text
             
     def add_highlight(self, time_str: str, tag_text: str, author: str):
         if self.tags_container.isHidden():
             self.tags_container.show()
             
-        highlight_html = f"• <a href='seek:{time_str}' style='color: #66b3ff; text-decoration: none;'>[{time_str}]</a> {tag_text} <span style='color: #666; font-size: 10px;'>- {author}</span>"
+        safe_tag = urllib.parse.quote(tag_text)
+        highlight_html = f"• <a href='seek:{time_str}?tag={safe_tag}' style='color: #66b3ff; text-decoration: none;'>[{time_str}]</a> {html.escape(tag_text)} <span style='color: #666; font-size: 10px;'>- {author}</span>"
         self.tags_list.append(highlight_html)
 
     def add_system_message(self, text: str):
-        new_msg = f"<i style='color: #888;'>{text}</i>"
+        msg = SystemMessageWidget(text)
-        self.chat_messages.append(new_msg)
+        self.chat_content_layout.addWidget(msg)
+        self._scroll_to_bottom()
+
+    def clear_chat(self):
+        for i in reversed(range(self.chat_content_layout.count())):
+            item = self.chat_content_layout.itemAt(i)
+            if item.widget():
+                item.widget().setParent(None)
 
     def send_chat(self):
         text = self.chat_input.text().strip()
@@ -609,100 +795,18 @@ class RoomWidget(QWidget):
         if text.startswith("/"):
             parts = text.split()
             cmd = parts[0].lower()
-            
-            if cmd == "/play":
             self.chat_input.setText("")
-                if not self.vlc_player.is_playing:
+            if handle_chat_command(cmd, parts, self):
-                    self.toggle_playback()
-                self.add_system_message(text)
-                return
-            elif cmd == "/pause":
-                self.chat_input.setText("")
-                if self.vlc_player.is_playing:
-                    self.toggle_playback()
-                self.add_system_message(text)
-                return
-            elif cmd == "/seek":
-                self.chat_input.setText("")
-                if len(parts) > 1:
-                    if self._handle_seek_command(parts[1]):
-                        self.add_system_message(text)
-                    else:
-                        self.add_system_message("Invalid time format. Use: 1:23, +30s, -1m")
-                else:
-                    self.add_system_message("Usage: /seek [time]")
-                return
-            elif cmd == "/tag":
-                self.chat_input.setText("")
-                if len(parts) > 1:
-                    time_arg = parts[1].lower()
-                    tag_name = " ".join(parts[2:])
-                    
-                    target_ms = self._parse_time_arg(time_arg)
-                    
-                    if target_ms is not None:
-                        s = int(max(0, target_ms) // 1000)
-                        if s >= 3600: time_str = f"{s//3600:02d}:{(s%3600)//60:02d}:{s%60:02d}"
-                        else: time_str = f"{(s%3600)//60:02d}:{s%60:02d}"
-                        
-                        msg = f"{time_str} {tag_name}".strip()
-                        self.chat_message_ready.emit(msg)
-                    else:
-                        self.add_system_message("Invalid time format. Use: now, 1:23, +30s, -1m")
-                else:
-                    self.add_system_message("Usage: /tag [now|time] [name]")
-                return
-            elif cmd == "/time":
-                self.chat_input.setText("")
-                current_ms = self.vlc_player.current_time_ms
-                s = max(0, current_ms) // 1000
-                if s >= 3600: time_str = f"{s//3600:02d}:{(s%3600)//60:02d}:{s%60:02d}"
-                else: time_str = f"{(s%3600)//60:02d}:{s%60:02d}"
-                self.add_system_message(f"Current time: <a href='seek:{time_str}' style='color: #66b3ff; text-decoration: none;'>{time_str}</a>")
-                return
-            elif cmd == "/help":
-                self.chat_input.setText("")
-                self.add_system_message("Available commands:<br><b>/play</b> - Resume playback<br><b>/pause</b> - Pause playback<br><b>/seek [time]</b> - Seek to specific time<br><b>/tag [now|time] [name]</b> - Tag a timestamp<br><b>/time</b> - Show current time<br><b>/help</b> - Show this message")
                 return
 
         self.chat_message_ready.emit(text)
         self.chat_input.setText("")
 
-    def _parse_time_arg(self, arg: str) -> float | None:
+    def _parse_time_arg(self, arg: str):
-        """Parses a time string (absolute time, offset like +30s, or 'now') and returns the target time in MS. Returns None on error."""
+        """Delegates to the standalone parse_time_arg function."""
         current_ms = self.vlc_player.current_time_ms
         length_ms = self.vlc_player.get_length()
-        if length_ms <= 0:
+        return parse_time_arg(arg, current_ms, length_ms)
-            return None
-            
-        if arg == "now":
-            return current_ms
-
-        try:
-            target_ms = 0
-            if arg.startswith('+') or arg.startswith('-'):
-                modifier = 1 if arg.startswith('+') else -1
-                num_str = arg[1:]
-                if num_str.endswith('s'): val = float(num_str[:-1]) * 1000
-                elif num_str.endswith('m'): val = float(num_str[:-1]) * 60 * 1000
-                elif num_str.endswith('h'): val = float(num_str[:-1]) * 3600 * 1000
-                else: val = float(num_str) * 1000
-                target_ms = current_ms + (val * modifier)
-            elif ":" in arg:
-                parts = arg.split(":")
-                parts.reverse()
-                if len(parts) > 0: target_ms += float(parts[0]) * 1000
-                if len(parts) > 1: target_ms += float(parts[1]) * 60 * 1000
-                if len(parts) > 2: target_ms += float(parts[2]) * 3600 * 1000
-            else:
-                if arg.endswith('s'): target_ms = float(arg[:-1]) * 1000
-                elif arg.endswith('m'): target_ms = float(arg[:-1]) * 60 * 1000
-                elif arg.endswith('h'): target_ms = float(arg[:-1]) * 3600 * 1000
-                else: target_ms = float(arg) * 1000
-                
-            return max(0, min(target_ms, length_ms))
-        except ValueError:
-            return None
 
     def _handle_seek_command(self, arg: str) -> bool:
         target_ms = self._parse_time_arg(arg)
@@ -711,3 +815,4 @@ class RoomWidget(QWidget):
             self.sync_action_requested.emit("seek", target_ms / 1000.0, req)
             return True
         return False
+

desktop-client/run-videosync.sh

@@ -0,0 +1,25 @@
+#!/bin/bash
+# VideoSync Desktop Client Launcher
+# Fetches the latest version from the repo and runs the desktop client.
+# Prerequisites: git, uv
+
+set -e
+
+REPO_URL="https://gitea.peterstockings.com/peterstockings/video-sync.git"
+INSTALL_DIR="$HOME/.videosync"
+
+echo "🎬 VideoSync Desktop Client Launcher"
+echo "======================================"
+
+# Clone or pull the latest version
+if [ -d "$INSTALL_DIR" ]; then
+    echo "📥 Pulling latest changes..."
+    git -C "$INSTALL_DIR" pull --ff-only
+else
+    echo "📥 Cloning repository..."
+    git clone "$REPO_URL" "$INSTALL_DIR"
+fi
+
+echo "🚀 Launching VideoSync..."
+cd "$INSTALL_DIR/desktop-client"
+uv run main.py

desktop-client/sync_client.py

@@ -1,5 +1,6 @@
 import asyncio
 import json
+import time
 import websockets
 from PyQt6.QtCore import QThread, pyqtSignal
 
@@ -15,6 +16,7 @@ class SyncClientThread(QThread):
     chat_message = pyqtSignal(str, str, int) # author, text, timestamp
     system_message = pyqtSignal(str)
     sync_event = pyqtSignal(dict)
+    latency_updated = pyqtSignal(int) # latency in ms
 
     def __init__(self, url="ws://localhost:3000/ws"):
         super().__init__()
@@ -22,6 +24,7 @@ class SyncClientThread(QThread):
         self.ws = None
         self.loop = None
         self.running = False
+        self._ping_sent_at = 0
 
     def run(self):
         """Runs strictly within the newly created QThread"""
@@ -44,6 +47,19 @@ class SyncClientThread(QThread):
             json_str = json.dumps(message)
             asyncio.run_coroutine_threadsafe(self.ws.send(json_str), self.loop)
 
+    async def _ping_loop(self, ws):
+        """Sends WebSocket protocol-level pings every 5s to measure latency."""
+        while self.running:
+            try:
+                pong = await ws.ping()
+                sent_at = time.time()
+                await asyncio.wait_for(pong, timeout=5)
+                latency_ms = int((time.time() - sent_at) * 1000)
+                self.latency_updated.emit(latency_ms)
+            except Exception:
+                break
+            await asyncio.sleep(5)
+
     async def _connect_and_listen(self):
         while self.running:
             try:
@@ -51,6 +67,7 @@ class SyncClientThread(QThread):
                     self.ws = ws
                     self.connected.emit()
                     
+                    ping_task = asyncio.create_task(self._ping_loop(ws))
                     try:
                         async for message in ws:
                             if not self.running:
@@ -58,6 +75,8 @@ class SyncClientThread(QThread):
                             self._handle_message(json.loads(message))
                     except websockets.ConnectionClosed:
                         pass
+                    finally:
+                        ping_task.cancel()
                         
             except Exception as e:
                 print(f"WebSocket Error: {e}")

desktop-client/utils.py

@@ -0,0 +1,11 @@
+def format_time_hms(ms: int) -> str:
+    """Format milliseconds as HH:MM:SS."""
+    s = max(0, ms) // 1000
+    return f"{s // 3600:02d}:{(s % 3600) // 60:02d}:{s % 60:02d}"
+
+def format_time_short(ms: int) -> str:
+    """Format milliseconds as MM:SS or HH:MM:SS if >= 1 hour."""
+    s = int(max(0, ms) // 1000)
+    if s >= 3600:
+        return f"{s // 3600:02d}:{(s % 3600) // 60:02d}:{s % 60:02d}"
+    return f"{(s % 3600) // 60:02d}:{s % 60:02d}"

public/app.js

@@ -235,6 +235,10 @@
         // Seamless reconnection — sync to server state
         isReconnecting = false;
         showConnectionStatus("reconnected");
+        if (msg.chatHistory) {
+          chatMessages.innerHTML = "";
+          msg.chatHistory.forEach((m) => addChatMessage(m.username, m.message, m.timestamp));
+        }
         updateUsers(msg.users);
         if (msg.state) {
           applySync(msg.state);

server.ts

@@ -137,6 +137,10 @@ const server = Bun.serve<WSData>({
       }
 
       switch (msg.type) {
+        case "ping": {
+          ws.send(JSON.stringify({ type: "pong", timestamp: msg.timestamp }));
+          break;
+        }
         case "create_room": {
           const username = (msg.username || "").trim();
           if (!username) {