Calendar: add timer

LocationTab: rework calendar settings
SoundService: add simple service to play & loop sounds

Commons/Settings.qml

@@ -252,6 +252,28 @@ Singleton {
       property int firstDayOfWeek: -1 // -1 = auto (use locale), 0 = Sunday, 1 = Monday, 6 = Saturday
     }
 
+    // calendar
+    property JsonObject calendar: JsonObject {
+      property list<var> cards: [
+        {
+          "id": "banner-card",
+          "enabled": true
+        },
+        {
+          "id": "calendar-card",
+          "enabled": true
+        },
+        {
+          "id": "timer-card",
+          "enabled": true
+        },
+        {
+          "id": "weather-card",
+          "enabled": true
+        }
+      ]
+    }
+
     // screen recorder
     property JsonObject screenRecorder: JsonObject {
       property string directory: ""

Commons/Time.qml

@@ -3,6 +3,7 @@ import QtQuick
 
 import Quickshell
 import qs.Commons
+import qs.Services.System
 
 Singleton {
   id: root
@@ -15,6 +16,16 @@ Singleton {
     return Math.floor(root.now / 1000);
   }
 
+  // Timer state (for countdown/stopwatch)
+  property bool timerRunning: false
+  property bool timerStopwatchMode: false
+  property int timerRemainingSeconds: 0
+  property int timerTotalSeconds: 0
+  property int timerElapsedSeconds: 0
+  property bool timerSoundPlaying: false
+  property int timerStartTimestamp: 0 // Unix timestamp when timer was started
+  property int timerPausedAt: 0 // Value when paused (for resuming)
+
   Timer {
     id: updateTimer
     interval: 1000
@@ -25,6 +36,20 @@ Singleton {
       var newTime = new Date();
       root.now = newTime;
 
+      // Update timer if running
+      if (root.timerRunning && root.timerStartTimestamp > 0) {
+        const elapsedSinceStart = root.timestamp - root.timerStartTimestamp;
+
+        if (root.timerStopwatchMode) {
+          root.timerElapsedSeconds = root.timerPausedAt + elapsedSinceStart;
+        } else {
+          root.timerRemainingSeconds = root.timerTotalSeconds - elapsedSinceStart;
+          if (root.timerRemainingSeconds <= 0) {
+            root.timerOnFinished();
+          }
+        }
+      }
+
       // Adjust next interval to sync with the start of the next second
       var msIntoSecond = newTime.getMilliseconds();
       if (msIntoSecond > 100) {
@@ -119,4 +144,63 @@ Singleton {
                      "diff": Math.floor(diff / 86400000)
                    });
   }
+
+  // Timer functions
+  function timerStart() {
+    if (root.timerStopwatchMode) {
+      root.timerRunning = true;
+      root.timerStartTimestamp = root.timestamp;
+      root.timerPausedAt = root.timerElapsedSeconds;
+    } else {
+      if (root.timerRemainingSeconds <= 0) {
+        return;
+      }
+      root.timerRunning = true;
+      root.timerTotalSeconds = root.timerRemainingSeconds;
+      root.timerStartTimestamp = root.timestamp;
+      root.timerPausedAt = 0;
+    }
+  }
+
+  function timerPause() {
+    if (root.timerRunning) {
+      // Save current state
+      if (root.timerStopwatchMode) {
+        root.timerPausedAt = root.timerElapsedSeconds;
+      } else {
+        root.timerPausedAt = root.timerRemainingSeconds;
+      }
+    }
+    root.timerRunning = false;
+    root.timerStartTimestamp = 0;
+    // Stop any repeating notification sound when pausing
+    SoundService.stopSound("alarm-beep.wav");
+    root.timerSoundPlaying = false;
+  }
+
+  function timerReset() {
+    root.timerRunning = false;
+    root.timerStartTimestamp = 0;
+    if (root.timerStopwatchMode) {
+      root.timerElapsedSeconds = 0;
+      root.timerPausedAt = 0;
+    } else {
+      root.timerRemainingSeconds = 0;
+      root.timerTotalSeconds = 0;
+      root.timerPausedAt = 0;
+    }
+    // Stop any repeating notification sound
+    SoundService.stopSound("alarm-beep.wav");
+    root.timerSoundPlaying = false;
+  }
+
+  function timerOnFinished() {
+    root.timerRunning = false;
+    root.timerRemainingSeconds = 0;
+    // Play notification sound with repeat
+    root.timerSoundPlaying = true;
+    SoundService.playSound("alarm-beep.wav", {
+                             repeat: true
+                           });
+  }
 }