#!/bin/sh

if [ "${NGX_HTTP}" = 0 ] ; then
	unset NGX_HTTP_NO_PROXY NGX_HTTP_WITH_MODSECURITY
else
	NGX_HTTP_NO_PROXY=$(gobool_to_int "${NGX_HTTP_NO_PROXY:-0}" 0)
	export NGX_HTTP_NO_PROXY

	unset http_modules http_confload
	http_modules=
	http_confload="${NGX_HTTP_CONFLOAD:-}"

	## 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=$(append_list "${http_confload}" "$i")
			continue
		fi

		## naive deduplication
		if list_have_item "${http_modules}" "$i" ; then
			log "$i is already specified"
			continue
		fi

		http_modules=$(append_list "${http_modules}" "$i")
	done
	unset i

	if [ "${NGX_HTTP_NO_PROXY}" = 0 ] ; then
		http_confload="${http_confload} proxy"
	fi

	## grpc depends on http/2
	if list_have_item "${http_confload}" grpc ; then
		http_confload="${http_confload} v2"
	fi

	## angie-module-lua: depends on angie-module-ndk
	## angie-module-set-misc: depends on angie-module-ndk
	if [ -n "${http_modules:-}" ] ; then
		unset want_ndk
		want_ndk=0
		if list_have_item "${http_modules}" lua ; then
			want_ndk=1
		elif list_have_item "${http_modules}" set-misc ; then
			want_ndk=1
		fi
		if [ ${want_ndk} = 1 ] ; then
			## forcefully move 'ndk' to beginning of list
			http_modules=$(printf '%s' " ${http_modules} " | sed -zE 's/ ndk / /;s/^/ndk/;s/ $//')
		fi
		unset want_ndk
	fi

	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
	if list_have_item "${NGX_HTTP_MODULES}" modsecurity ; then
		unset d f
		for d in /angie/modules /etc/angie/modules /etc/angie/modules.dist ; do
			[ -d "$d" ] || continue
			f="$d/ngx_http_modsecurity_module.so"
			[ -f "$f" ] || continue
			if ! [ -h "$f" ] ; then
				NGX_HTTP_WITH_MODSECURITY=1
				break
			fi
		done
		unset d f
	fi
	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