#!/bin/bash

set -eu

template='/usr/local/share/rwsols-config.php'
file='/var/www/html/config.php'

cp "$template" "$file"

search_and_replace() {
  local search="$1"
  local replace="$2"
  local escaped

  escaped=$(printf '%s' "$replace" | sed -e 's/[&|\\]/\\&/g')
  sed -i "s|$search|$escaped|g" "$file"
}

for v in $(compgen -A variable RWSOLS_); do
  if grep -q "REPLACE_$v" "$file"; then
    echo "search_and_replace REPLACE_$v with ${!v}"
    search_and_replace "REPLACE_$v" "${!v}"
  fi
done

RWSOLS_HASH=$(php -r '$p = getenv("PASSPHRASE"); echo password_hash($p === false ? "" : $p, PASSWORD_DEFAULT);')
search_and_replace "REPLACE_APPROVED_HASH" "$RWSOLS_HASH"

case "${APACHE2_PORT:-}" in
  ''|*[!0-9]*)
    echo "APACHE2_PORT must be a numeric port" >&2
    exit 1
    ;;
esac

echo "Starting Apache2 on port $APACHE2_PORT"
sed -i "s|8080|$APACHE2_PORT|g" /etc/apache2/ports.conf /etc/apache2/sites-available/000-default.conf

exec apache2-foreground