added waybar config for laptop

.config/waybar/scripts/battery_health.sh

@@ -0,0 +1,29 @@
+#!/usr/bin/env bash
+set -euo pipefail
+bat="$(upower -e | grep -m1 BAT || true)"
+if [ -z "$bat" ]; then
+  echo '{"text":" --","class":"no-battery","tooltip":"No battery found"}'
+  exit 0
+fi
+info="$(upower -i "$bat")"
+full=$(echo "$info" | awk -F: '/energy-full:/{gsub(/[^0-9.]/,"",$2); print $2; exit}')
+design=$(echo "$info" | awk -F: '/energy-full-design:/{gsub(/[^0-9.]/,"",$2); print $2; exit}')
+if [ -z "$full" ] || [ -z "$design" ] || [ "$design" = "0" ]; then
+  # Try charge-full fallback
+  full=$(echo "$info" | awk -F: '/charge-full:/{gsub(/[^0-9.]/,"",$2); print $2; exit}')
+  design=$(echo "$info" | awk -F: '/charge-full-design:/{gsub(/[^0-9.]/,"",$2); print $2; exit}')
+fi
+wear="--"
+if [ -n "$full" ] && [ -n "$design" ] && [ "$design" != "0" ]; then
+  health=$(awk -v f="$full" -v d="$design" 'BEGIN{printf "%.0f", (f/d)*100}')
+  wear=$(( 100 - health ))
+  text="❤ ${health}%"
+else
+  text="❤ --"
+fi
+cycles=$(echo "$info" | awk -F: '/cycle count:/{gsub(/[^0-9]/,"",$2); print $2; exit}')
+vendor=$(echo "$info" | awk -F: '/vendor:/{gsub(/^ +/,"",$2); print $2; exit}')
+model=$(echo "$info" | awk -F: '/model:/{gsub(/^ +/,"",$2); print $2; exit}')
+tt="Battery health info\nWear: ${wear}%\nCycles: ${cycles:---}\nVendor: ${vendor:---}\nModel: ${model:---}"
+printf '{"text":"%s","class":"battery-health","tooltip":"%s"}\n' "$text" "$(echo "$tt" | sed ':a;N;$!ba;s/\n/\\n/g')"
+