#!/usr/bin/env bash
#
# Integration loopback test using villas node.
#
# Author: Steffen Vogel <post@steffenvogel.de>
# SPDX-FileCopyrightText: 2014-2023 Institute for Automation of Complex Power Systems, RWTH Aachen University
# SPDX-License-Identifier: Apache-2.0

set -e

DIR=$(mktemp -d)
pushd ${DIR}

function finish {
    popd
    rm -rf ${DIR}
}
trap finish EXIT

RATE="33.0"

cat > config.json <<EOF
{
    "nodes": {
        "stats_1": {
             "type": "stats",
             "node": "signal_1",
             "rate": 10.0,
             "in": {
             	"signals": [
             		{ "name": "gap",   "stats": "signal_1.gap_sent.mean" },
             		{ "name": "total", "stats": "signal_1.owd.total" }
             	]
             }
        },
        "signal_1": {
             "type": "signal",
             "limit": 100,
             "signal": "sine",
             "rate": ${RATE},
             "in": {
             	"hooks": [
             		{ "type": "stats", "verbose": true }
             	]
             }
        },
        "stats_log_1": {
             "type": "file",
             "format": "json",

             "uri": "stats.json"
        }
    },
    "paths": [
        {
             "in": "signal_1"
        },
        {
             "in": "stats_1",
             "out": "stats_log_1"
        }
    ]
}
EOF

timeout --preserve-status -k 15s 5s \
villas node config.json

[ -s stats.json ] # check that file exists

tail -n1 stats.json | jq -e "(.data[0] - 1/${RATE} | length) < 1e-4 and .data[1] == 99" > /dev/null