feat: add statsDaemon.interval setting, pass --interval to nova-stats

modules/Modules.qml

@@ -89,6 +89,9 @@ QtObject {
     property var overviewBackdrop: ({
             enable: true
         })
+    property var statsDaemon: ({
+            interval: -1
+        })
 
     property FileView _file: FileView {
         path: (Quickshell.env("XDG_CONFIG_HOME") || (Quickshell.env("HOME") + "/.config")) + "/nova-shell/modules.json"

modules/SystemStats.qml

@@ -29,7 +29,10 @@ QtObject {
     // nova-stats stream (cpu + mem)
     property var _statsProc: Process {
         running: true
-        command: ["nova-stats"]
+        command: {
+            const ms = M.Modules.statsDaemon.interval;
+            return ms > 0 ? ["nova-stats", "--interval", ms.toString()] : ["nova-stats"];
+        }
         stdout: SplitParser {
             splitMarker: "\n"
             onRead: line => {

nix/hm-module.nix

@@ -169,6 +169,17 @@ in
             };
           }
         );
+        statsDaemon = lib.mkOption {
+          default = { };
+          description = "Configuration for the nova-stats daemon.";
+          type = lib.types.submodule {
+            options.interval = lib.mkOption {
+              type = lib.types.int;
+              default = -1;
+              description = "nova-stats polling interval in milliseconds (-1 = use binary default of 1s).";
+            };
+          };
+        };
       };
 
     theme = lib.mkOption {

stats-daemon/src/main.rs

@@ -159,7 +159,22 @@ fn emit_mem(out: &mut impl Write) {
     }
 }
 
+fn parse_interval_ms() -> u64 {
+    let args: Vec<String> = std::env::args().collect();
+    let mut i = 1;
+    while i < args.len() {
+        if args[i] == "--interval" {
+            if let Some(ms) = args.get(i + 1).and_then(|s| s.parse().ok()) {
+                return ms;
+            }
+        }
+        i += 1;
+    }
+    1000
+}
+
 fn main() {
+    let interval = Duration::from_millis(parse_interval_ms());
     let stdout = io::stdout();
     let mut out = io::BufWriter::new(stdout.lock());
     let mut prev: Vec<Sample> = vec![];
@@ -181,8 +196,8 @@ fn main() {
         tick += 1;
 
         let elapsed = t0.elapsed();
-        if elapsed < Duration::from_secs(1) {
+        if elapsed < interval {
-            thread::sleep(Duration::from_secs(1) - elapsed);
+            thread::sleep(interval - elapsed);
         }
     }
 }