#!/bin/sh
set -f

. /image-entry.d/00-common.envsh

## Angie: unset core variable
unset ANGIE ANGIE_BPF_MAPS

[ "${NGX_STRICT_LOAD}" = 0 ] || set -e

cd "${merged_root}/"

expand_error_delim() {
	IEP_DEBUG=0 log_always ' ----------------------------------- '
}
unset expand_error_seen
expand_error() {
	[ "${expand_error_seen:-}" != 1 ] || return
	expand_error_seen=1
	expand_error_delim
	log_always 'template expansion has failed'
	if [ "${NGX_STRICT_LOAD}" = 1 ] ; then
		t=15
		log_always "injecting delay for $t seconds"
		expand_error_delim
		sleep $t
		exit 1
	fi
	expand_error_delim
}

merge_dirs=
for n in ${NGX_DIRS_MERGE} ; do
	[ -n "$n" ] || continue
	[ -d "$n" ] || continue

	merge_dirs="${merge_dirs} $n/"
done

set -a
ENVSUBST_ARGS="${volume_root}/diag.envsubst.txt"
J2CFG_PATH="${merged_root}/j2cfg"
J2CFG_SEARCH_PATH="${merged_root}"
set +a

envsubst-args.sh > "${ENVSUBST_ARGS}"

## expand j2cfg templates first

expand_dir_envsubst j2cfg/ || expand_error
expand_dir_j2cfg j2cfg/    || expand_error

## expand other templates

expand_dir_envsubst ${merge_dirs} || expand_error

unset j2cfg_dump
j2cfg_dump="${volume_root}/diag.j2cfg.yml"

j2cfg-dump > "${j2cfg_dump}" || expand_error

export J2CFG_CONFIG="${j2cfg_dump}"

expand_dir_j2cfg ${merge_dirs} || expand_error

## remove template sources in order to avoid leaking sensitive data
if [ "${NGX_PROCESS_STATIC}" = 1 ] ; then
	__template_list=$(mktemp)

	find static/ -follow -type f -printf '%p\0' \
	| grep -zE '\.(in|j2)$' \
	| {
		if [ -n "${NGX_TEMPLATE_EXCLUDE_REGEX:-}" ] ; then
			grep -zEv -e "${NGX_TEMPLATE_EXCLUDE_REGEX}"
		elif [ -n "${NGX_TEMPLATE_INCLUDE_REGEX:-}" ] ; then
			grep -zE -e "${NGX_TEMPLATE_INCLUDE_REGEX}"
		else
			cat
		fi
	} \
	| sort -zuV > "${__template_list}"

	if [ -s "${__template_list}" ] ; then
		xargs -0r -n 1000 -a "${__template_list}" \
		rm -fv < /dev/null
	fi

	rm -f "${__template_list}" ; unset __template_list
fi

exit 0