#!/bin/bash

HOST=${1:?DOMAIN or IP is empty}

docker exec -i memgraph_memgraph_1 mgconsole -output-format=csv <<- _CQL_ | sed -e 's/"//g' | tail -n +2 | tr '[],[]' ' ' | gawk -f /dev/fd/3 3<<- "_AWK_" | column -t -i1 -p2 -r3 -H1,2 | sed 's/─/& /'
	MATCH p=(n)-[*]->(m)
	WHERE any(n in nodes(p) where n.name = '$HOST') AND not exists(()-->(n)) AND not exists((m)-->())
	UNWIND nodes(p) AS nn
	WITH DISTINCT nn
	CALL path.expand(nn,[">"],[],1,1) YIELD result
	RETURN extract(i in nodes(result)|i.name);
_CQL_
	BEGIN {
		split("", cache);
		split("", roots);
		idx=0;
	}
	{
		if(!($1 in cache)) {
			roots[$1] = cache[$1] = ++idx;
		}
		if(!($2 in cache)) {
			cache[$2] = ++idx;
		}
		delete roots[$2];
		print cache[$2], cache[$1], $2;
	}
	END {
		print "0 -1 ."
		for(root in roots) {
			print cache[root], 0, root;
		}
	}
_AWK_

# vim: set noai noet: