#!/usr/bin/env bash

set -eu


SCRIPT_PATH="$( cd "$(dirname "$0")" >/dev/null 2>&1 ; pwd -P )"
OUTPUT="stats.json"

# Move in repo folder
pushd ${SCRIPT_PATH} > /dev/null


# If file does not exist, create it with JSON bracket
if [ ! -f $OUTPUT ]; then
    echo "[" >> ${OUTPUT}
fi

# Append stat data
now=$(date -Iseconds)
echo "{" >> ${OUTPUT}
echo "	\"data\": \"${now}\"" >> ${OUTPUT}
/snap/bin/docker stats --no-stream --format "	,\"{{.Name}}\": \"{{.MemUsage}}\"" >> ${OUTPUT}

echo "}," >> ${OUTPUT}


# Back to  original path
popd