[[ "$BLOCK_BUTTON" == 2 ]] && i3-sensible-terminal -e htop

[[ $BLOCK_INSTANCE =~ (phys|swap) ]] && TYPE=${BASH_REMATCH[1]}

MEMINFO=$(cat /proc/meminfo)
if [[ $MEMINFO =~ MemTotal:[[:space:]]+([0-9]+) ]]; then
    PHYS_TOTAL=${BASH_REMATCH[1]}
    PHYS_TOTAL=$((${PHYS_TOTAL} / 1024**2))
fi
if [[ $MEMINFO =~ MemAvailable:[[:space:]]+([0-9]+) ]]; then
    PHYS_AVAILABLE=${BASH_REMATCH[1]}
    PHYS_AVAILABLE=$((${PHYS_AVAILABLE} / 1024**2))
    PHYS_AVAILABLE_M=$((${PHYS_AVAILABLE} / 1024))
fi
if [[ $MEMINFO =~ SwapTotal:[[:space:]]+([0-9]+) ]]; then
    SWAP_TOTAL=${BASH_REMATCH[1]}
    SWAP_TOTAL=$((${SWAP_TOTAL} / 1024**2))
fi
if [[ $MEMINFO =~ SwapFree:[[:space:]]+([0-9]+) ]]; then
    SWAP_AVAILABLE=${BASH_REMATCH[1]}
    SWAP_AVAILABLE=$((${SWAP_AVAILABLE} / 1024**2))
    SWAP_AVAILABLE_M=$((${SWAP_AVAILABLE} / 1024))
fi

if [[ "$TYPE" == "" ]]; then
    MEM_FREE=$((${PHYS_AVAILABLE} + ${SWAP_AVAILABLE}))
    MEM_TOTAL=$((${PHYS_TOTAL} + ${SWAP_TOTAL}))
    if [[ "$MEM_FREE" -gt 2 ]]; then
        LONG_TEXT="${PHYS_AVAILABLE}+${SWAP_AVAILABLE}G"
        SHORT_TEXT="${PHYS_AVAILABLE}+${SWAP_AVAILABLE}G"
    else
        LONG_TEXT="${PHYS_AVAILABLE_M}+${SWAP_AVAILABLE}M"
        SHORT_TEXT="${PHYS_AVAILABLE_M}+${SWAP_AVAILABLE}M"
    fi
elif [[ "$TYPE" == "ram" ]]; then
    MEM_FREE=${PHYS_AVAILABLE}
    MEM_TOTAL=${PHYS_TOTAL}
elif [[ "$TYPE" == "swap" ]]; then
    MEM_FREE=${SWAP_AVAILABLE}
    MEM_TOTAL=${SWAP_TOTAL}
fi