#!/usr/bin/env bash
set -euo pipefail

vmcc_root() {
  cd "$(dirname "${BASH_SOURCE[0]}")/../.." && pwd
}

iso_utc_now() {
  date -u "+%Y-%m-%dT%H:%M:%SZ"
}

run_id() {
  local ts
  ts="$(date -u "+%Y%m%dT%H%M%SZ")"
  local rnd
  rnd="$(head -c 8 /dev/urandom | od -An -tx1 | tr -d ' \n')"
  echo "${ts}_${rnd:0:8}"
}

require_cmd() {
  command -v "$1" >/dev/null 2>&1 || { echo "missing required tool: $1" >&2; exit 2; }
}

json_emit() {
  printf '%s\n' "$1"
}