Ubiquiti Store stock checker

ui_stock_check.sh

#!/bin/bash

models=(
    "switch-enterprise-8-poe"
    "usw-enterprise-24-poe"
    "usw-enterprise-48-poe"
    "usp-rps"
)

do_check () {
    for model in "${models[@]}"; do
        url="https://store.ui.com/products/${model}"
        status=$( \
            curl -s -q -L "${url}" \
            | grep -E 'span id="title(InStock|SoldOut)Badge"' \
            | sed -r 's/^\s*<.*>(.*)<\/span>/\1/' \
        )
    
        if [ $? -ne 0 ]; then
            status="\e[43mERROR"
        else
            if [[ "${status}" == "In Stock" ]]; then
                status="\a\e[42m${status}"
            elif [[ "${status}" == "Sold Out" ]]; then
                status="\e[41m${status}"
            fi
        fi
    
        printf "| %-25s | %-8b\e[0m | %-90s |\n" "${model}" "${status}" "${url}"
    done
}

if [[ "$1" == "-r" ]]; then
    while true; do
        echo "============================="
        echo "= $(date -Iseconds) ="
        echo "============================="

        do_check

        echo "Sleeping..."
        sleep 30
    done
else
    do_check
fi