#!/bin/bash
set -euo pipefail
shopt -s nullglob

ROOT_DIR="$(cd "$(dirname "$(readlink "$0" || echo "$0")")"/..; pwd -P)"

echo "Running node dump in ${ROOT_DIR}"

cd "${ROOT_DIR}"

DUMP="log/node_dump_$(date +"%Y%m%d_%H%M%S").tar.gz"
CONF_DUMP="log/conf.dump"
SYSINFO="log/sysinfo.txt"

collect() {
    echo "========================================================"
    echo "    $*"
    echo "========================================================"
    eval "$*" || echo "Unavailable"
    echo -e '\n'
}

{
    collect bin/emqx_ctl broker
    collect bin/emqx eval "'emqx_node_dump:sys_info()'"

    collect uname -a
    collect uptime
    collect free -h
    collect netstat -tnl

    collect bin/emqx_ctl plugins list
    collect bin/emqx_ctl modules list

    collect bin/emqx_ctl vm all
    collect bin/emqx_ctl listeners
} > "${SYSINFO}"

{
    collect bin/emqx eval "'emqx_node_dump:app_env_dump()'"
} > "${CONF_DUMP}"

{
    find log -mtime -3 \( -name '*.log.*' -or -name 'run_erl.log*' \)
    echo "${SYSINFO}"
    echo "${CONF_DUMP}"
} | tar czf "${DUMP}" -T -

## Cleanup:
rm "${SYSINFO}"
#rm "${CONF_DUMP}" # Keep it for inspection

echo "Created a node dump ${DUMP}"
echo -e "\nWARNING: this script tries to obfuscate secrets, but make sure to
inspect log/conf.dump file manually before uploading the node dump
to a public location."