1 files changed, 80 insertions, 0 deletions
diff --git a/users/kassouni/palette/bluetooth.nix b/users/kassouni/palette/bluetooth.nix
new file mode 100644
index 0000000..58cdf2f
--- /dev/null
+++ b/users/kassouni/palette/bluetooth.nix
@@ -0,0 +1,80 @@
+{ pkgs, config, ...}:
+{
+
+  kassouni.palette.commands = [
+    {
+      name = "toggle bluetooth device";
+      icon = "󰂯";
+      # `jc --bluetoothctl` turns `bluetoothctl devices` into JSON, so the menu is
+      # built from parsed records rather than by splitting "Device <addr> <name>"
+      # lines. That subcommand leaves every status field empty, so connectedness
+      # comes from a second `devices Connected` call intersected on address.
+      exe = pkgs.writers.writePython3 "bluetooth-toggle" {
+        # The interpolated store paths below are longer than 79 columns.
+        flakeIgnore = [ "E501" ];
+      } ''
+        import html
+        import json
+        import subprocess
+        import sys
+
+        BT = "${pkgs.bluez}/bin/bluetoothctl"
+        JC = "${pkgs.jc}/bin/jc"
+        ROFI = "${pkgs.rofi}/bin/rofi"
+
+
+        def devices(*args):
+            """Parse `bluetoothctl devices [args]` into a list of records."""
+            listed = subprocess.run(
+                [BT, "devices", *args], capture_output=True, text=True
+            )
+            parsed = subprocess.run(
+                [JC, "--bluetoothctl"],
+                input=listed.stdout,
+                capture_output=True,
+                text=True,
+            )
+            return json.loads(parsed.stdout or "[]")
+
+
+        def label(device, connected):
+            """Pango markup row. Names are escaped, they are not our text."""
+            name = html.escape(device["name"])
+            if device["address"] in connected:
+                name += ' <span alpha="45%">connected</span>'
+            return name
+
+
+        def main():
+            known = devices()
+            if not known:
+                return 0
+
+            # Older bluez has no `devices Connected`; that call just comes back
+            # empty there, which degrades to "nothing is connected".
+            connected = {d["address"] for d in devices("Connected")}
+
+            rows = [label(d, connected) for d in known]
+            choice = subprocess.run(
+                [ROFI, "-dmenu", "-i", "-markup-rows", "-format", "i",
+                 "-p", "bluetooth"],
+                input="\n".join(rows),
+                capture_output=True,
+                text=True,
+            )
+            if choice.returncode != 0:
+                return 1
+
+            device = known[int(choice.stdout.strip())]
+            action = (
+                "disconnect" if device["address"] in connected else "connect"
+            )
+            return subprocess.run([BT, action, device["address"]]).returncode
+
+
+        if __name__ == "__main__":
+            sys.exit(main())
+      '';
+    }
+  ];
+}