#!/bin/sh
# Deletes small MP3 recordings that are likely noise/false positives.
# Runs in a loop, intended for use inside a Docker container.
#
# Environment variables:
#   SIZE_THRESHOLD  - find -size format, e.g. 3k, 5k, 10k (default: 3k)
#   INTERVAL        - seconds between runs (default: 300)

RECORDINGS_DIR="/recordings"
SIZE_THRESHOLD="${SIZE_THRESHOLD:-3k}"
INTERVAL="${INTERVAL:-300}"

while true; do
  find "$RECORDINGS_DIR" -type f -name '*.mp3' -size "-${SIZE_THRESHOLD}" -mmin +1 -delete
  sleep "$INTERVAL"
done