""" Alert Widget - Displays system alerts and notifications """ from PySide6.QtWidgets import (QWidget, QVBoxLayout, QHBoxLayout, QLabel, QPushButton, QFrame, QScrollArea, QCheckBox) from PySide6.QtCore import Qt, Signal, QTimer, QDateTime, QPropertyAnimation, QEasingCurve from PySide6.QtGui import QFont, QColor, QPalette class AlertItem(QFrame): """Individual alert item widget""" dismissed = Signal(str) # alert_id action_triggered = Signal(str, str) # alert_id, action def __init__(self, alert_id, alert_type, title, message, timestamp=None, parent=None): super().__init__(parent) self.alert_id = alert_id self.alert_type = alert_type self.timestamp = timestamp or QDateTime.currentDateTime() self._setup_ui(title, message) self._apply_style() def _setup_ui(self, title, message): """Setup alert item UI""" layout = QVBoxLayout(self) layout.setContentsMargins(12, 8, 12, 8) layout.setSpacing(4) # Header with icon, title, and dismiss button header_layout = QHBoxLayout() # Alert icon icons = { 'error': '🚨', 'warning': '⚠ī¸', 'info': 'ℹī¸', 'success': '✅', 'critical': 'đŸ’Ĩ' } icon_label = QLabel(icons.get(self.alert_type, 'ℹī¸')) icon_label.setFont(QFont("Arial", 12)) header_layout.addWidget(icon_label) # Title title_label = QLabel(title) title_label.setFont(QFont("Segoe UI", 9, QFont.Bold)) header_layout.addWidget(title_label) header_layout.addStretch() # Timestamp time_label = QLabel(self.timestamp.toString("hh:mm:ss")) time_label.setFont(QFont("Segoe UI", 8)) time_label.setStyleSheet("color: #7f8c8d;") header_layout.addWidget(time_label) # Dismiss button dismiss_btn = QPushButton("✕") dismiss_btn.setFixedSize(20, 20) dismiss_btn.setStyleSheet(""" QPushButton { background-color: transparent; border: none; color: #95a5a6; font-size: 12px; } QPushButton:hover { background-color: #ecf0f1; border-radius: 10px; } """) dismiss_btn.clicked.connect(lambda: self.dismissed.emit(self.alert_id)) header_layout.addWidget(dismiss_btn) layout.addLayout(header_layout) # Message message_label = QLabel(message) message_label.setFont(QFont("Segoe UI", 8)) message_label.setWordWrap(True) message_label.setStyleSheet("color: #2c3e50; margin-left: 20px;") layout.addWidget(message_label) # Action buttons for critical/error alerts if self.alert_type in ['error', 'critical']: self._add_action_buttons(layout) def _add_action_buttons(self, layout): """Add action buttons for alerts that require user action""" actions_layout = QHBoxLayout() actions_layout.setContentsMargins(20, 4, 0, 0) # Acknowledge button ack_btn = QPushButton("Acknowledge") ack_btn.setStyleSheet(""" QPushButton { background-color: #3498db; color: white; border: none; padding: 4px 8px; border-radius: 3px; font-size: 8pt; } QPushButton:hover { background-color: #2980b9; } """) ack_btn.clicked.connect(lambda: self.action_triggered.emit(self.alert_id, "acknowledge")) actions_layout.addWidget(ack_btn) # View details button details_btn = QPushButton("View Details") details_btn.setStyleSheet(""" QPushButton { background-color: #95a5a6; color: white; border: none; padding: 4px 8px; border-radius: 3px; font-size: 8pt; } QPushButton:hover { background-color: #7f8c8d; } """) details_btn.clicked.connect(lambda: self.action_triggered.emit(self.alert_id, "details")) actions_layout.addWidget(details_btn) actions_layout.addStretch() layout.addLayout(actions_layout) def _apply_style(self): """Apply alert type specific styling""" colors = { 'error': '#e74c3c', 'warning': '#f39c12', 'info': '#3498db', 'success': '#27ae60', 'critical': '#8e44ad' } bg_colors = { 'error': '#fdf2f2', 'warning': '#fef9e7', 'info': '#e8f4fd', 'success': '#eafaf1', 'critical': '#f4ecf7' } border_color = colors.get(self.alert_type, '#bdc3c7') bg_color = bg_colors.get(self.alert_type, '#f8f9fa') self.setStyleSheet(f""" QFrame {{ background-color: {bg_color}; border-left: 4px solid {border_color}; border-radius: 4px; margin: 2px 0px; }} """) class AlertWidget(QWidget): """ Main alert widget for displaying system notifications and alerts Features: - Multiple alert types (error, warning, info, success, critical) - Auto-dismiss for certain alert types - Alert filtering and search - Action buttons for critical alerts - Alert history with timestamps """ # Signals alert_action_required = Signal(str, str) # alert_id, action alerts_cleared = Signal() def __init__(self, parent=None): super().__init__(parent) self.alerts = {} # alert_id -> AlertItem self.auto_dismiss_types = ['success', 'info'] self.max_alerts = 50 self._setup_ui() # Auto-dismiss timer self.dismiss_timer = QTimer() self.dismiss_timer.timeout.connect(self._check_auto_dismiss) self.dismiss_timer.start(5000) # Check every 5 seconds def _setup_ui(self): """Setup alert widget UI""" layout = QVBoxLayout(self) layout.setContentsMargins(0, 0, 0, 0) # Header header = self._create_header() layout.addWidget(header) # Alerts scroll area self.scroll_area = QScrollArea() self.scroll_area.setWidgetResizable(True) self.scroll_area.setHorizontalScrollBarPolicy(Qt.ScrollBarAlwaysOff) self.scroll_area.setStyleSheet(""" QScrollArea { border: none; background-color: white; } """) # Alerts container self.alerts_container = QWidget() self.alerts_layout = QVBoxLayout(self.alerts_container) self.alerts_layout.setContentsMargins(8, 4, 8, 4) self.alerts_layout.setSpacing(2) self.alerts_layout.addStretch() # Push alerts to top self.scroll_area.setWidget(self.alerts_container) layout.addWidget(self.scroll_area) # No alerts message self.no_alerts_label = QLabel("No active alerts") self.no_alerts_label.setAlignment(Qt.AlignCenter) self.no_alerts_label.setStyleSheet(""" QLabel { color: #95a5a6; font-style: italic; padding: 20px; } """) self.alerts_layout.insertWidget(0, self.no_alerts_label) def _create_header(self): """Create alerts header with controls""" header = QFrame() header.setFixedHeight(40) header.setStyleSheet(""" QFrame { background-color: #34495e; border-bottom: 1px solid #2c3e50; } """) layout = QHBoxLayout(header) layout.setContentsMargins(10, 5, 10, 5) # Title title = QLabel("🚨 System Alerts") title.setFont(QFont("Segoe UI", 10, QFont.Bold)) title.setStyleSheet("color: white;") layout.addWidget(title) layout.addStretch() # Alert count self.count_label = QLabel("0 alerts") self.count_label.setFont(QFont("Segoe UI", 8)) self.count_label.setStyleSheet("color: #ecf0f1;") layout.addWidget(self.count_label) # Clear all button clear_btn = QPushButton("Clear All") clear_btn.setStyleSheet(""" QPushButton { background-color: #e74c3c; color: white; border: none; padding: 4px 8px; border-radius: 3px; font-size: 8pt; } QPushButton:hover { background-color: #c0392b; } """) clear_btn.clicked.connect(self.clear_all_alerts) layout.addWidget(clear_btn) return header def add_alert(self, alert_type, title, message, alert_id=None, auto_dismiss=None): """ Add a new alert Args: alert_type: 'error', 'warning', 'info', 'success', 'critical' title: Alert title message: Alert message alert_id: Unique alert ID (auto-generated if None) auto_dismiss: Auto-dismiss in seconds (None for default behavior) """ if alert_id is None: alert_id = f"alert_{len(self.alerts)}_{QDateTime.currentMSecsSinceEpoch()}" # Remove oldest alert if at max capacity if len(self.alerts) >= self.max_alerts: oldest_id = next(iter(self.alerts)) self.dismiss_alert(oldest_id) # Create alert item alert_item = AlertItem(alert_id, alert_type, title, message) alert_item.dismissed.connect(self.dismiss_alert) alert_item.action_triggered.connect(self._on_alert_action) # Add to layout (insert before stretch) self.alerts_layout.insertWidget(self.alerts_layout.count() - 1, alert_item) self.alerts[alert_id] = alert_item # Hide no alerts message self.no_alerts_label.hide() # Update count self._update_count() # Auto-dismiss if configured if auto_dismiss or (auto_dismiss is None and alert_type in self.auto_dismiss_types): dismiss_time = auto_dismiss if auto_dismiss else 10 # 10 seconds default QTimer.singleShot(dismiss_time * 1000, lambda: self.dismiss_alert(alert_id)) # Scroll to top to show new alert self.scroll_area.verticalScrollBar().setValue(0) print(f"🚨 Alert added: {alert_type} - {title}") return alert_id def dismiss_alert(self, alert_id): """Dismiss a specific alert""" if alert_id in self.alerts: alert_item = self.alerts[alert_id] self.alerts_layout.removeWidget(alert_item) alert_item.deleteLater() del self.alerts[alert_id] # Show no alerts message if empty if not self.alerts: self.no_alerts_label.show() self._update_count() print(f"🚨 Alert dismissed: {alert_id}") def clear_all_alerts(self): """Clear all alerts""" for alert_id in list(self.alerts.keys()): self.dismiss_alert(alert_id) self.alerts_cleared.emit() print("🚨 All alerts cleared") def _on_alert_action(self, alert_id, action): """Handle alert action button clicks""" self.alert_action_required.emit(alert_id, action) # Auto-dismiss after acknowledgment if action == "acknowledge": self.dismiss_alert(alert_id) def _check_auto_dismiss(self): """Check for alerts that should be auto-dismissed""" current_time = QDateTime.currentDateTime() for alert_id, alert_item in list(self.alerts.items()): # Auto-dismiss info and success alerts after 30 seconds if (alert_item.alert_type in self.auto_dismiss_types and alert_item.timestamp.secsTo(current_time) > 30): self.dismiss_alert(alert_id) def _update_count(self): """Update alert count display""" count = len(self.alerts) self.count_label.setText(f"{count} alert{'s' if count != 1 else ''}") def get_alert_count(self): """Get current alert count""" return len(self.alerts) def get_alerts_by_type(self, alert_type): """Get alerts of specific type""" return [alert for alert in self.alerts.values() if alert.alert_type == alert_type] def has_critical_alerts(self): """Check if there are any critical or error alerts""" return any(alert.alert_type in ['critical', 'error'] for alert in self.alerts.values())