#!/bin/sh
set -eu

php_conf_dir="/usr/local/etc/php/conf.d"
php_conf_file="${php_conf_dir}/zz-qni-runtime-limits.ini"
entrypoint_hooks_dir="/docker-entrypoint-hooks.d"
empty_skeleton_dir="${NUQLOUD_EMPTY_SKELETON_DIR:-/var/www/html/data/nuqloud-empty-skeleton}"

mkdir -p "${php_conf_dir}"

normalize_php_ini_size() {
  raw_value="$(printf '%s' "${1:-}" | tr -d '[:space:]')"
  if [ -z "${raw_value}" ]; then
    printf '%s' ""
    return 0
  fi

  lower_value="$(printf '%s' "${raw_value}" | tr '[:upper:]' '[:lower:]')"
  if [ "${lower_value}" = "-1" ]; then
    printf '%s' "-1"
    return 0
  fi

  parsed_value="$(printf '%s' "${lower_value}" | sed -nE 's/^([0-9]+)([kmgtp]?)(i?b?)?$/\1|\2/p')"
  if [ -n "${parsed_value}" ]; then
    numeric_part="${parsed_value%%|*}"
    unit_part="${parsed_value#*|}"
    case "${unit_part}" in
      "")
        printf '%s' "${numeric_part}"
        return 0
        ;;
      k)
        printf '%s' "${numeric_part}K"
        return 0
        ;;
      m)
        printf '%s' "${numeric_part}M"
        return 0
        ;;
      g)
        printf '%s' "${numeric_part}G"
        return 0
        ;;
      t)
        printf '%s' "${numeric_part}T"
        return 0
        ;;
      p)
        printf '%s' "${numeric_part}P"
        return 0
        ;;
    esac
  fi

  printf '%s' "${raw_value}"
}

upload_limit="${NEXTCLOUD_PHP_UPLOAD_MAX_FILESIZE:-${PHP_UPLOAD_MAX_FILESIZE:-5G}}"
post_limit="${NEXTCLOUD_PHP_POST_MAX_SIZE:-${PHP_POST_MAX_SIZE:-5G}}"
memory_limit_value="${NEXTCLOUD_PHP_MEMORY_LIMIT:-${PHP_MEMORY_LIMIT:-}}"

upload_limit="$(normalize_php_ini_size "${upload_limit}")"
post_limit="$(normalize_php_ini_size "${post_limit}")"
memory_limit_value="$(normalize_php_ini_size "${memory_limit_value}")"

{
  echo '; Generated by qni-nextcloud-entrypoint.sh'
  if [ -n "${upload_limit}" ]; then
    echo "upload_max_filesize=${upload_limit}"
  fi
  if [ -n "${post_limit}" ]; then
    echo "post_max_size=${post_limit}"
  fi
  if [ -n "${memory_limit_value}" ]; then
    echo "memory_limit=${memory_limit_value}"
  fi
} > "${php_conf_file}"

if [ "${NUQLOUD_DISABLE_DEFAULT_SKELETON:-1}" != "0" ]; then
  mkdir -p \
    "${entrypoint_hooks_dir}/pre-installation" \
    "${entrypoint_hooks_dir}/before-starting"

  for hook_file in \
    "${entrypoint_hooks_dir}/pre-installation/10-qni-empty-skeleton.sh" \
    "${entrypoint_hooks_dir}/before-starting/10-qni-empty-skeleton.sh"; do
    cat > "${hook_file}" <<'EOF'
#!/bin/sh
set -eu

empty_skeleton_dir="${NUQLOUD_EMPTY_SKELETON_DIR:-/var/www/html/data/nuqloud-empty-skeleton}"
config_dir="/var/www/html/config"
config_file="${config_dir}/nuqloud-skeleton.config.php"

mkdir -p "${empty_skeleton_dir}" "${config_dir}"
find "${empty_skeleton_dir}" -mindepth 1 -maxdepth 1 -exec rm -rf {} +
chown -R www-data:www-data "${empty_skeleton_dir}" 2>/dev/null || true

cat > "${config_file}" <<PHP
<?php
\$CONFIG = [
  'skeletondirectory' => '${empty_skeleton_dir}',
];
PHP
chown www-data:www-data "${config_file}" 2>/dev/null || true
EOF
    chmod 0755 "${hook_file}"
  done
fi

if [ "$#" -eq 0 ]; then
  exec /entrypoint.sh apache2-foreground
fi

exec /entrypoint.sh "$@"