#!/usr/bin/env bash
set -euo pipefail

PR="471"
PROVIDER="onetime-mail.com"
A_RECORDS=("203.152.198.135")

while read -r line; do
    echo "Checking $line"
    mx="$(dig +short MX "$line" | cut -d' ' -f2-)"
    a="$(dig +short A "${mx[@]}")"
    grep_args=()
    for search_record in "${A_RECORDS[@]}"; do
        grep_args+=('-e' "^${search_record//./\.}$")
    done
    grep -q "${grep_args[@]}" <<< "$a" || echo "$line is not part of $PROVIDER (MX: $(paste -s -d' ' - <<< "${mx:-missing}"))"
done < <(curl -fsSL -o- https://github.com/disposable-email-domains/disposable-email-domains/pull/$PR.diff | grep '^+[^+]' | cut -d'+' -f2-)