#!/bin/sh

if [ "${NGX_HTTP}" = 1 ] ; then
	unset http_modules http_confload
	http_modules=
	http_confload="${NGX_HTTP_CONFLOAD:-}"

	if [ -n "${NGX_HTTP_MODULES}" ] ; then
		## angie-module-lua: depends on angie-module-ndk
		## angie-module-set-misc: depends on angie-module-ndk
		NGX_HTTP_MODULES=$(
			printf '%s' "${NGX_HTTP_MODULES}" \
			| sed -zE 's/(\s|^)(lua|set-misc)(\s|$)/\1ndk \2\3/g'
		)
	fi

	## filter out builtin http modules
	unset i
	for i in ${NGX_HTTP_MODULES:-} ; do
		[ -n "$i" ] || continue

		case "$i" in
		*/* | *\** | *\?* )
			log_always "module '$i' is not legal, skipping"
			continue
		;;
		esac

		if is_builtin_module http "$i" ; then
			log "$i is builtin module, moving to NGX_HTTP_CONFLOAD"
			http_confload="${http_confload} $i"
			continue
		fi

		## naive deduplication
		case " ${http_modules} " in
		*" $i "* )
			log "$i is already specified"
			continue
		;;
		esac

		http_modules="${http_modules}${http_modules:+ }$i"
	done
	unset i

	set -a
	NGX_HTTP_MODULES="${http_modules}"
	NGX_HTTP_CONFLOAD=$(sort_dedup_list "${http_confload}")
	set +a

	unset http_modules http_confload

	## quirk: angie-module-modsecurity
	unset NGX_HTTP_WITH_MODSECURITY
	NGX_HTTP_WITH_MODSECURITY=0
	while : ; do
		case " ${NGX_HTTP_MODULES} " in
		*" modsecurity "* ) ;;
		* ) break ;;
		esac

		for d in /angie/modules /etc/angie/modules /etc/angie/modules.dist ; do
			[ -d "$d" ] || continue
			if [ -f "$d/ngx_http_modsecurity_module.so" ] ; then
				NGX_HTTP_WITH_MODSECURITY=1
				break
			fi
		done ; unset d
	break ; done
	export NGX_HTTP_WITH_MODSECURITY

	if [ "${NGX_HTTP_WITH_MODSECURITY}" = 1 ] ; then
		set -a
		NGX_DIRS_MERGE=$(sort_dedup_list "${NGX_DIRS_MERGE} modsecurity")
		set +a
	fi
fi