#!/usr/bin/env bash
# Install only the local Asterisk HEP mirror config; restart separately after confirming zero calls.
set -euo pipefail
[[ $# == 1 && $1 =~ ^127\.0\.0\.1:([1-9][0-9]{0,4})$ ]] || { echo 'usage: configure-asterisk-user-hep.sh 127.0.0.1:<port>' >&2; exit 2; }
port=${BASH_REMATCH[1]}
(( 10#$port <= 65535 )) || { echo 'invalid HEP port' >&2; exit 2; }
config="$HOME/.config/go-sip-asterisk"
[[ -d $config && -r $config/asterisk.conf ]] || { echo 'user Asterisk config missing; fail-closed' >&2; exit 1; }
[[ ! -e $config/hep.conf && ! -L $config/hep.conf ]] || { echo 'HEP config already exists; refuse to overwrite' >&2; exit 1; }
umask 077
stage=$(mktemp "$config/.hep.XXXXXXXX")
trap 'rm -f -- "$stage"' EXIT
printf '[general]\nenabled = yes\ncapture_address = %s\ncapture_id = 1234\nuuid_type = call-id\n' "$1" >"$stage"
ln -- "$stage" "$config/hep.conf" || { echo 'cannot create HEP config without overwriting another file' >&2; exit 1; }
echo 'Asterisk local HEP mirror configured; service not restarted'