feat(pi): sync theme with hyprland changes

Author: mswell

config/pi/agent/extensions/hypr-theme-sync.js

@@ -0,0 +1,98 @@
+import fs from "node:fs";
+import os from "node:os";
+import path from "node:path";
+
+const CURRENT_THEME_FILE = path.join(os.homedir(), ".config", "hypr", "current-theme");
+const POLL_MS = 1000;
+
+const THEME_ALIASES = {
+  "wellpunk-dark": ["wellpunk-dark", "dark"],
+  "wellpunk-light": ["wellpunk-light", "light"],
+  tokyonight: ["tokyonight", "dark"],
+  vantablack: ["wellpunk-dark", "dark"],
+  black: ["wellpunk-dark", "dark"],
+  dark: ["wellpunk-dark", "dark"],
+  white: ["wellpunk-light", "light"],
+  light: ["wellpunk-light", "light"],
+};
+
+function readHyprTheme() {
+  try {
+    return fs.readFileSync(CURRENT_THEME_FILE, "utf8").trim();
+  } catch {
+    return undefined;
+  }
+}
+
+function resolvePiTheme(hyprTheme, ctx) {
+  if (!hyprTheme) return undefined;
+
+  const available = new Set(ctx.ui.getAllThemes().map((theme) => theme.name));
+  const candidates = THEME_ALIASES[hyprTheme] ?? [hyprTheme];
+
+  for (const candidate of candidates) {
+    if (available.has(candidate)) return candidate;
+  }
+
+  return undefined;
+}
+
+export default function hyprThemeSync(pi) {
+  let watcher = null;
+  let interval = null;
+  let lastHyprTheme;
+  let lastPiTheme;
+  let debounce = null;
+
+  pi.on("session_start", (_event, ctx) => {
+    const apply = () => {
+      const hyprTheme = readHyprTheme();
+      const piTheme = resolvePiTheme(hyprTheme, ctx);
+
+      if (!piTheme || (hyprTheme === lastHyprTheme && piTheme === lastPiTheme)) {
+        return;
+      }
+
+      const result = ctx.ui.setTheme(piTheme);
+      if (result.success) {
+        lastHyprTheme = hyprTheme;
+        lastPiTheme = piTheme;
+      } else {
+        ctx.ui.notify(`hypr-theme-sync: failed to apply ${piTheme}: ${result.error}`, "error");
+      }
+    };
+
+    const scheduleApply = () => {
+      if (debounce) clearTimeout(debounce);
+      debounce = setTimeout(() => {
+        debounce = null;
+        apply();
+      }, 100);
+    };
+
+    apply();
+
+    try {
+      watcher = fs.watch(CURRENT_THEME_FILE, scheduleApply);
+    } catch {
+      // The file may not exist yet on first install. Polling below covers that case.
+    }
+
+    interval = setInterval(apply, POLL_MS);
+  });
+
+  pi.on("session_shutdown", () => {
+    if (debounce) {
+      clearTimeout(debounce);
+      debounce = null;
+    }
+    if (watcher) {
+      watcher.close();
+      watcher = null;
+    }
+    if (interval) {
+      clearInterval(interval);
+      interval = null;
+    }
+  });
+}

config/pi/manifest.json

@@ -17,6 +17,7 @@
     "agent/extensions/gpt-auto-router/README.md",
     "agent/extensions/gpt-auto-router/index.ts",
     "agent/extensions/guardrails.json",
+    "agent/extensions/hypr-theme-sync.js",
     "agent/extensions/list-google-models.js",
     "agent/extensions/pi-config-backup/README.md",
     "agent/extensions/pi-config-backup/index.js",

setup/lib/theme_orchestrator.sh

@@ -118,7 +118,7 @@ reload|kitty SIGUSR1
 reload|tmux source-file
 reload|zsh SIGUSR1
 reload|mako reload
-reload|pi-settings theme
+reload|pi hypr-theme-sync extension
 PLAN
 }