feat(waybar): add custom Logitech battery status module and script

.config/waybar/config-desktop

@@ -16,6 +16,7 @@
     "temperature",
     "pulseaudio",
     "network",
+    "custom/logitech-battery",
     "tray",
     "custom/wlogout"
   ],
@@ -103,6 +104,15 @@
   "tray": {
     "icon-size": 20
   },
+  "custom/logitech-battery": {
+    "exec": "~/.local/bin/logitech_battery.sh",
+    "interval": 60,
+    "return-type": "json",
+    "format": "{text}",
+    "tooltip": "{tooltip}",
+    "class": "logitech-battery",
+    "on-click": "solaar gui"
+  },
   "custom/wlogout": {
     "format": "⏻",
     "tooltip": "Logout/Shutdown",

.config/waybar/config-laptop

@@ -18,6 +18,7 @@
     "pulseaudio",
     "network",
     "battery",
+    "custom/logitech-battery",
     "tray",
     "custom/wlogout"
   ],
@@ -136,6 +137,15 @@
   "tray": {
     "icon-size": 20
   },
+  "custom/logitech-battery": {
+    "exec": "~/.local/bin/logitech_battery.sh",
+    "interval": 60,
+    "return-type": "json",
+    "format": "{text}",
+    "tooltip": "{tooltip}",
+    "class": "logitech-battery",
+    "on-click": "solaar gui"
+  },
   "custom/wlogout": {
     "format": "⏻",
     "tooltip": "Logout/Shutdown",

.config/waybar/style.css

@@ -36,7 +36,7 @@ window#waybar {
   color: #1e1e2e;
 }
 
-#clock, #cpu, #memory, #temperature, #pulseaudio, #network, #battery, #tray, #backlight, #disk, #idle_inhibitor {
+#clock, #cpu, #memory, #temperature, #pulseaudio, #network, #battery, #tray, #backlight, #disk, #idle_inhibitor, #custom-logitech-battery {
   padding: 0 10px;
   margin: 0 2px;
   border-radius: 6px;
@@ -69,3 +69,4 @@ window#waybar {
   color: #1e1e2e;
   box-shadow: 0 2px 8px rgba(0,0,0,0.18);
 }
+

.local/bin/logitech_battery.sh

@@ -0,0 +1,52 @@
+#!/bin/bash
+
+# Helper: map percent to icon and color
+get_icon() {
+    local percent=$1
+    if ! [[ "$percent" =~ ^[0-9]+$ ]]; then percent=0; fi
+    if [ "$percent" -ge 90 ]; then echo ""; elif [ "$percent" -ge 60 ]; then echo ""; elif [ "$percent" -ge 40 ]; then echo ""; elif [ "$percent" -ge 20 ]; then echo ""; else echo ""; fi
+}
+get_color() {
+    local percent=$1
+    if ! [[ "$percent" =~ ^[0-9]+$ ]]; then percent=0; fi
+    if [ "$percent" -ge 90 ]; then echo "#00ff00"; elif [ "$percent" -ge 60 ]; then echo "#aaff00"; elif [ "$percent" -ge 40 ]; then echo "#ffff00"; elif [ "$percent" -ge 20 ]; then echo "#ff8800"; else echo "#ff0000"; fi
+}
+
+KEYBOARD_NAME="G915"
+MOUSE_NAME="G903"
+
+# Use actual Unicode icons
+KEYBOARD_ICON=""
+MOUSE_ICON="🖱️"
+
+# Parse keyboard info
+kb_line=$(solaar show 2>/dev/null | awk '/G915/ {dev=1} /Battery:/ && dev==1 {print; dev=0}')
+kb_percent=$(echo "$kb_line" | awk '{print $2}' | tr -d '%' | grep -E '^[0-9]+$' || echo "N/A")
+kb_voltage=$(echo "$kb_line" | grep -o '[0-9]*mV' | grep -o '[0-9]*' || echo "N/A")
+kb_status=$(echo "$kb_line" | awk '{print $3}' || echo "N/A")
+
+# Parse mouse info, handle offline/unknown
+mouse_line=$(solaar show 2>/dev/null | awk '/G903/ {dev=1} /Battery:/ && dev==1 {print; dev=0}')
+if echo "$mouse_line" | grep -qi "unknown"; then
+    mouse_percent="N/A"
+    mouse_voltage="N/A"
+    mouse_status="offline"
+else
+    mouse_percent=$(echo "$mouse_line" | awk '{print $2}' | tr -d '%' | grep -E '^[0-9]+$' || echo "N/A")
+    mouse_voltage=$(echo "$mouse_line" | grep -o '[0-9]*mV' | grep -o '[0-9]*' || echo "N/A")
+    mouse_status=$(echo "$mouse_line" | awk '{print $3}' || echo "N/A")
+fi
+
+kb_icon=$(get_icon "$kb_percent")
+kb_color=$(get_color "$kb_percent")
+kb_tooltip="${KEYBOARD_NAME}: ${kb_percent:-N/A}% @ ${kb_voltage:-N/A}mV (${kb_status:-N/A})"
+
+mouse_icon=$(get_icon "$mouse_percent")
+mouse_tooltip="${MOUSE_NAME}: ${mouse_percent:-N/A}% @ ${mouse_voltage:-N/A}mV (${mouse_status:-N/A})"
+
+# Escape newlines for JSON
+tooltip=$(echo -e "$kb_tooltip\n$mouse_tooltip" | sed ':a;N;$!ba;s/\n/\\n/g')
+
+cat <<EOF
+{"text": "$KEYBOARD_ICON $kb_icon | $MOUSE_ICON $mouse_icon ","tooltip": "$tooltip","class": "logitech-battery","color": "$kb_color"}
+EOF

README.md

@@ -98,6 +98,10 @@ The script will install all required packages and symlink dotfiles and configs (
 - **TTY Keymap:** Console uses German nodeadkeys layout for all users (system-wide via `localectl`).
 - **No official Teams/Outlook client:** Use the web app or AUR wrappers for best compatibility.
 - **TortoiseGit alternative:** Use GitKraken, Sublime Merge, SmartGit, or lazygit for graphical Git workflows.
+- **Logitech Battery Status:**
+  If you have Logitech G915 (keyboard) or G903 (mouse), battery status is shown in Waybar via the `custom/logitech-battery` module.
+  The script at `.local/bin/logitech_battery.sh` uses `solaar` to report battery and status for both devices.
+  To use, ensure `solaar` is installed and your devices are paired. The module appears in the Waybar right section on both desktop and laptop profiles.
 
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