@@ -0,0 +1,196 @@ |
| 1 | +//! Notification storage and timeout management |
| 2 | + |
| 3 | +use std::collections::HashMap; |
| 4 | +use std::sync::atomic::{AtomicU32, Ordering}; |
| 5 | +use std::sync::Arc; |
| 6 | +use tokio::runtime::Handle; |
| 7 | +use tokio::sync::Mutex; |
| 8 | +use tokio::task::JoinHandle; |
| 9 | +use tracing::{debug, info}; |
| 10 | + |
| 11 | +use super::types::{CloseReason, Notification, UrgencyTimeouts}; |
| 12 | + |
| 13 | +/// Counter for notification IDs |
| 14 | +static NEXT_ID: AtomicU32 = AtomicU32::new(1); |
| 15 | + |
| 16 | +/// Generate the next notification ID |
| 17 | +pub fn next_notification_id() -> u32 { |
| 18 | + NEXT_ID.fetch_add(1, Ordering::SeqCst) |
| 19 | +} |
| 20 | + |
| 21 | +/// Event sent for notification lifecycle changes |
| 22 | +#[derive(Debug, Clone)] |
| 23 | +pub enum NotificationEvent { |
| 24 | + /// A new notification was created |
| 25 | + Created(Notification), |
| 26 | + /// A notification was updated (replaced) |
| 27 | + Updated(Notification), |
| 28 | + /// A notification should be closed |
| 29 | + Closed { id: u32, reason: CloseReason }, |
| 30 | +} |
| 31 | + |
| 32 | +/// Notification storage with timeout management |
| 33 | +pub struct NotificationStore { |
| 34 | + /// Active notifications by ID |
| 35 | + notifications: HashMap<u32, Notification>, |
| 36 | + /// Timeout handles by notification ID |
| 37 | + timeouts: HashMap<u32, JoinHandle<()>>, |
| 38 | + /// Channel to send expiration events |
| 39 | + event_tx: tokio::sync::mpsc::Sender<NotificationEvent>, |
| 40 | + /// Default timeout configuration |
| 41 | + urgency_timeouts: UrgencyTimeouts, |
| 42 | + /// Tokio runtime handle for spawning tasks |
| 43 | + tokio_handle: Handle, |
| 44 | +} |
| 45 | + |
| 46 | +impl NotificationStore { |
| 47 | + /// Create a new notification store |
| 48 | + pub fn new( |
| 49 | + event_tx: tokio::sync::mpsc::Sender<NotificationEvent>, |
| 50 | + urgency_timeouts: UrgencyTimeouts, |
| 51 | + tokio_handle: Handle, |
| 52 | + ) -> Self { |
| 53 | + Self { |
| 54 | + notifications: HashMap::new(), |
| 55 | + timeouts: HashMap::new(), |
| 56 | + event_tx, |
| 57 | + urgency_timeouts, |
| 58 | + tokio_handle, |
| 59 | + } |
| 60 | + } |
| 61 | + |
| 62 | + /// Add a notification to the store |
| 63 | + /// |
| 64 | + /// If replaces_id > 0 and exists, replaces that notification. |
| 65 | + /// Returns the notification ID. |
| 66 | + pub fn add(&mut self, mut notification: Notification) -> u32 { |
| 67 | + // Handle replacement |
| 68 | + let is_replacement = notification.replaces_id > 0 |
| 69 | + && self.notifications.contains_key(¬ification.replaces_id); |
| 70 | + |
| 71 | + let id = if is_replacement { |
| 72 | + // Cancel existing timeout |
| 73 | + if let Some(handle) = self.timeouts.remove(¬ification.replaces_id) { |
| 74 | + handle.abort(); |
| 75 | + } |
| 76 | + notification.replaces_id |
| 77 | + } else { |
| 78 | + notification.id |
| 79 | + }; |
| 80 | + |
| 81 | + // Update ID if we're replacing |
| 82 | + notification.id = id; |
| 83 | + |
| 84 | + info!( |
| 85 | + "Storing notification: id={} app=\"{}\" summary=\"{}\" urgency={}", |
| 86 | + id, notification.app_name, notification.summary, notification.hints.urgency |
| 87 | + ); |
| 88 | + |
| 89 | + // Schedule timeout if needed |
| 90 | + self.schedule_timeout(¬ification); |
| 91 | + |
| 92 | + // Send event for UI to show/update popup |
| 93 | + let event = if is_replacement { |
| 94 | + NotificationEvent::Updated(notification.clone()) |
| 95 | + } else { |
| 96 | + NotificationEvent::Created(notification.clone()) |
| 97 | + }; |
| 98 | + let tx = self.event_tx.clone(); |
| 99 | + let _ = self.tokio_handle.spawn(async move { |
| 100 | + let _ = tx.send(event).await; |
| 101 | + }); |
| 102 | + |
| 103 | + // Store notification |
| 104 | + self.notifications.insert(id, notification); |
| 105 | + |
| 106 | + id |
| 107 | + } |
| 108 | + |
| 109 | + /// Schedule a timeout for a notification |
| 110 | + fn schedule_timeout(&mut self, notification: &Notification) { |
| 111 | + let timeout_ms = notification.effective_timeout( |
| 112 | + self.urgency_timeouts.normal, |
| 113 | + &self.urgency_timeouts, |
| 114 | + ); |
| 115 | + |
| 116 | + if let Some(ms) = timeout_ms { |
| 117 | + let id = notification.id; |
| 118 | + let tx = self.event_tx.clone(); |
| 119 | + |
| 120 | + debug!("Scheduling timeout for notification {}: {}ms", id, ms); |
| 121 | + |
| 122 | + // Use the stored tokio handle to spawn the timeout task |
| 123 | + // This allows spawning from non-tokio contexts (like zbus's executor) |
| 124 | + let handle = self.tokio_handle.spawn(async move { |
| 125 | + tokio::time::sleep(tokio::time::Duration::from_millis(ms)).await; |
| 126 | + let _ = tx |
| 127 | + .send(NotificationEvent::Closed { |
| 128 | + id, |
| 129 | + reason: CloseReason::Expired, |
| 130 | + }) |
| 131 | + .await; |
| 132 | + }); |
| 133 | + |
| 134 | + self.timeouts.insert(id, handle); |
| 135 | + } else { |
| 136 | + debug!( |
| 137 | + "Notification {} has no timeout (will persist)", |
| 138 | + notification.id |
| 139 | + ); |
| 140 | + } |
| 141 | + } |
| 142 | + |
| 143 | + /// Get a notification by ID |
| 144 | + pub fn get(&self, id: u32) -> Option<&Notification> { |
| 145 | + self.notifications.get(&id) |
| 146 | + } |
| 147 | + |
| 148 | + /// Remove a notification from the store |
| 149 | + /// |
| 150 | + /// Returns the removed notification if it existed. |
| 151 | + pub fn remove(&mut self, id: u32) -> Option<Notification> { |
| 152 | + // Cancel timeout |
| 153 | + if let Some(handle) = self.timeouts.remove(&id) { |
| 154 | + handle.abort(); |
| 155 | + } |
| 156 | + |
| 157 | + self.notifications.remove(&id) |
| 158 | + } |
| 159 | + |
| 160 | + /// Get all active notifications |
| 161 | + pub fn list(&self) -> Vec<&Notification> { |
| 162 | + self.notifications.values().collect() |
| 163 | + } |
| 164 | + |
| 165 | + /// Get count of active notifications |
| 166 | + pub fn count(&self) -> usize { |
| 167 | + self.notifications.len() |
| 168 | + } |
| 169 | + |
| 170 | + /// Check if a notification exists |
| 171 | + pub fn contains(&self, id: u32) -> bool { |
| 172 | + self.notifications.contains_key(&id) |
| 173 | + } |
| 174 | + |
| 175 | + /// Clear all notifications |
| 176 | + pub fn clear(&mut self) -> Vec<Notification> { |
| 177 | + // Cancel all timeouts |
| 178 | + for (_, handle) in self.timeouts.drain() { |
| 179 | + handle.abort(); |
| 180 | + } |
| 181 | + |
| 182 | + self.notifications.drain().map(|(_, n)| n).collect() |
| 183 | + } |
| 184 | +} |
| 185 | + |
| 186 | +/// Thread-safe wrapper around NotificationStore |
| 187 | +pub type SharedNotificationStore = Arc<Mutex<NotificationStore>>; |
| 188 | + |
| 189 | +/// Create a new shared notification store |
| 190 | +pub fn new_shared_store( |
| 191 | + event_tx: tokio::sync::mpsc::Sender<NotificationEvent>, |
| 192 | + urgency_timeouts: UrgencyTimeouts, |
| 193 | + tokio_handle: Handle, |
| 194 | +) -> SharedNotificationStore { |
| 195 | + Arc::new(Mutex::new(NotificationStore::new(event_tx, urgency_timeouts, tokio_handle))) |
| 196 | +} |