battery-tmux

#!/usr/bin/env bash

hash acpi >/dev/null 2>&1 || return

HEART_FULL=█
HEART_HALF=▓
HEART_EMPTY=░
NUM_HEARTS=${NUM_HEARTS:-5}

cute_battery() {
  local battery_perc=$(acpi | awk '{print $4}' | tr -d '%,')
  local perc=$battery_perc
  local inc=$(( 100 / $NUM_HEARTS))
  local hearts=''

  for ((i=1;i<=NUM_HEARTS;++i)); do
    if [ $perc -lt 100 ]; then
      hearts+=$HEART_EMPTY
    else
      hearts+=$HEART_FULL
    fi
    perc=$(( $perc + $inc ))
  done
  if [ $battery_perc -gt 10 ]; then
    echo "#[fg=green]${battery_perc}% ${hearts}#[fg=colour254] "
  else
    echo "#[fg=red]${battery_perc}% ${hearts}#[fg=colour254] "
  fi
}

cute_battery