fx-monitor/ci/check_cardinality.sh

#!/usr/bin/env bash
# CI helper: check cardinality of a given label field over the last 24h using logcli
# Usage: ./check_cardinality.sh event 5000

FIELD=${1:-event}
THRESHOLD=${2:-5000}

if ! command -v logcli >/dev/null 2>&1; then
  echo "logcli not found in PATH"
  exit 2
fi

echo "Checking cardinality for label: $FIELD"

RESULT=$(logcli query '{env="prod"}' --since=24h | jq -r ".[].${FIELD}" | sort | uniq -c | awk -v t=$THRESHOLD '$1>t{print $2, $1}')

if [ -n "$RESULT" ]; then
  echo "High cardinality detected for field '$FIELD':"
  echo "$RESULT"
  exit 1
else
  echo "Cardinality OK"
  exit 0
fi