From 5464089948d71a0f343fc8cc500d66232a5fccb1 Mon Sep 17 00:00:00 2001
From: Myned <dev@bjork.tech>
Date: Tue, 24 Sep 2024 18:24:27 -0500
Subject: [PATCH] left: refactor with argc

Signed-off-by: Myned <dev@bjork.tech>
---
 options/custom/desktops/hyprland/binds.nix    |  2 +-
 options/custom/desktops/hyprland/settings.nix |  2 +-
 options/custom/scripts/default.nix            |  1 +
 options/custom/scripts/left.sh                | 49 +++++++++++++------
 4 files changed, 37 insertions(+), 17 deletions(-)

diff --git a/options/custom/desktops/hyprland/binds.nix b/options/custom/desktops/hyprland/binds.nix
index 81ca73e..f47ca46 100644
--- a/options/custom/desktops/hyprland/binds.nix
+++ b/options/custom/desktops/hyprland/binds.nix
@@ -132,7 +132,7 @@ in {
         (key "Bracketright" "Super" "layoutmsg" "orientationnext")
         (key "Bracketright" "Super+Shift" "splitratio" "+0.1")
         (key "Delete" "Super" "exec" "${swayosd-client} --output-volume mute")
-        (key "Delete" "Super+Shift" "exec" "${left} kensington-orbit-wireless-tb-mouse")
+        (key "Delete" "Super+Shift" "exec" "${left} --scroll kensington-orbit-wireless-tb-mouse")
         (key "Down" "Super" "movewindow" "d")
         (key "Down" "Super+Shift" "movewindoworgroup" "d")
         (key "Equal" "Super" "exec" "${swayosd-client} --output-volume raise")
diff --git a/options/custom/desktops/hyprland/settings.nix b/options/custom/desktops/hyprland/settings.nix
index 712d4fc..e30ee1a 100644
--- a/options/custom/desktops/hyprland/settings.nix
+++ b/options/custom/desktops/hyprland/settings.nix
@@ -61,7 +61,7 @@ in {
 
       # https://wiki.hyprland.org/Configuring/Keywords/#executing
       exec = [
-        left # Set left-pawed state
+        "${left} --init --scroll kensington-orbit-wireless-tb-mouse" # Enforce left-pawed state
         "${sleep} 5 && ${systemctl} --user restart walker"
         "${sleep} 5 && ${systemctl} --user restart waybar"
       ];
diff --git a/options/custom/scripts/default.nix b/options/custom/scripts/default.nix
index 75ad8ef..675a715 100644
--- a/options/custom/scripts/default.nix
+++ b/options/custom/scripts/default.nix
@@ -92,6 +92,7 @@ in {
               systemd
             ])
             (bash "left" [
+              argc
               hyprland
               jq
               libnotify
diff --git a/options/custom/scripts/left.sh b/options/custom/scripts/left.sh
index 741a87f..6fe098a 100644
--- a/options/custom/scripts/left.sh
+++ b/options/custom/scripts/left.sh
@@ -1,35 +1,54 @@
 #! /usr/bin/env bash
 
-# Toggle left-pawed mouse
-#?? left DEVICE
+# @describe Toggle device pawdedness
+#
+# https://github.com/sigoden/argc
 
 # BUG: New hyprctl syntax does not support per-device getoption
 # https://github.com/hyprwm/hyprlang/issues/43
 # HACK: Condition based on file presence, requires execution at reload to set state
-#?? exec = left
-FILE="$HOME/.left"
+#?? exec = left --init <DEVICE>
 
-# Set initial state
-if [[ -f "$FILE" ]]; then
+# @arg device! Device name, obtained via hyprctl devices
+# @option -f --file=`_default_file` Specify file for state
+# @flag -i --init Enforce file-based state without switching
+# @flag -s --scroll Also invert scroll direction
+
+_default_file() {
+  echo "$HOME/.left"
+}
+
+eval "$(argc --argc-eval "$0" "$@")"
+
+# Get initial state
+if [[ -f "${argc_file:-}" ]]; then
   left=1
 else
   left=0
 fi
 
-# If device argument, then toggle
-if (("$#" > 0)); then
-  left=$((1 - "$left"))
+# If not initializing
+if [[ ! "${argc_init:-}" ]]; then
+  left=$((1 - "$left")) # Toggle 0/1
 fi
 
 # Enforce state
 if (("$left")); then
-  hyprctl keyword "device[$1]:left_handed" true
-  hyprctl keyword "device[$1]:natural_scroll" true
-  touch "$FILE"
+  hyprctl keyword "device[${argc_device:-}]:left_handed" true
+
+  if [[ "${argc_scroll:-}" ]]; then
+    hyprctl keyword "device[${argc_device:-}]:natural_scroll" true
+  fi
+
+  touch "${argc_file:-}"
   notify-send "> left" "Left-pawed" --urgency low
 else
-  hyprctl keyword "device[$1]:left_handed" false
-  hyprctl keyword "device[$1]:natural_scroll" false
-  rm --force "$FILE"
+  hyprctl keyword "device[${argc_device:-}]:left_handed" false
+
+  if [[ "${argc_scroll:-}" ]]; then
+    hyprctl keyword "device[${argc_device:-}]:natural_scroll" false
+  fi
+
+  rm --force "${argc_file:-}"
   notify-send "> left" "Right-pawed" --urgency low
 fi