apiVersion: batch/v1
kind: CronJob
metadata:
  name: metrics-retention
  namespace: polymarket-bot
spec:
  # Daily at 00:10 UTC: collapse every past UTC day in metrics_daily to its
  # last snapshot (the "daily close"). The bot writes one snapshot per cycle
  # (~1,300/day); only the close of past days is read back (DISTINCT ON in
  # get_metrics_history / get_daily_pnl_closes), so intraday rows of past
  # days are dead weight. Today's rows are never touched: the latest one
  # feeds /api/summary and the close is still evolving.
  schedule: "10 0 * * *"
  suspend: true
  concurrencyPolicy: Forbid
  successfulJobsHistoryLimit: 3
  failedJobsHistoryLimit: 3
  jobTemplate:
    spec:
      backoffLimit: 2
      template:
        spec:
          restartPolicy: Never
          containers:
            - name: prune
              image: postgres:16-alpine
              env:
                - name: DATABASE_URL
                  valueFrom:
                    secretKeyRef:
                      name: bot-secrets-infisical
                      key: DATABASE_URL
              command:
                - /bin/sh
                - -c
                - |
                  set -e
                  psql "$DATABASE_URL" -v ON_ERROR_STOP=1 -c "
                    DELETE FROM metrics_daily m
                    USING (
                        SELECT timestamp::date AS day, MAX(timestamp) AS keep_ts
                        FROM metrics_daily
                        WHERE timestamp::date < CURRENT_DATE
                        GROUP BY 1
                    ) k
                    WHERE m.timestamp::date = k.day
                      AND m.timestamp < k.keep_ts;
                  "
                  psql "$DATABASE_URL" -c "VACUUM ANALYZE metrics_daily;"
              resources:
                requests:
                  cpu: 10m
                  memory: 32Mi
                limits:
                  memory: 128Mi