#!/usr/bin/env bash
# Usage: {script}
# Update the list of currency codes

set -euo pipefail

declare -r IFS=$'\n'

declare -r LIST_URL="https://download.geonames.org/export/dump/countryInfo.txt"
declare -r LIST_FILENAME=$(mktemp)

declare -r RULE_FILENAME=$(dirname "${BASH_SOURCE}")/../library/Rules/PostalCode.php
declare -r RULE_FILENAME_TEMPORARY=$(mktemp)

echo "- Downloading list"
curl --silent --location "${LIST_URL}" --output "${LIST_FILENAME}"

declare -r CURRENCY_CODES_COUNT=$(grep "<CcyNtry>" "${LIST_FILENAME}" | wc --lines)

echo "- Creating temporary file"
{
  sed -n "/^</,/private const POSTAL_CODES = \[/p" "${RULE_FILENAME}"
  echo '    // phpcs:disable Generic.Files.LineLength.TooLong'
  cat "$LIST_FILENAME" | 
    sed '/^#/d' |
    sed '/^$/d' |
    cut -f1,14,15 |
    sort -u | while read -r country_postal_code
    do
        country_code="${country_postal_code%%	*}"
        country_postal="${country_postal_code#$country_code	}"
        country_format="${country_postal%%	*}"
        country_regex="${country_postal#$country_format	}"
        country_regex="${country_regex%% }"
        country_format="$(echo "$country_format" | sed 's/#/\\d/g' | sed 's/@/\\w/g')"
        if test -n "$country_regex"
        then
            echo "        '$country_code' => ['/^$country_format$/', '/$country_regex/'],"
        fi
    done
  echo '    // phpcs:disable Generic.Files.LineLength.TooLong'
  sed --silent '/^    \];\/\/end/,/^}/p' "${RULE_FILENAME}"
} > "${RULE_FILENAME_TEMPORARY}"

echo "- Updating content of '$(basename ${RULE_FILENAME})'"
mv "${RULE_FILENAME_TEMPORARY}" "${RULE_FILENAME}"

echo "Finished!"