#!/usr/bin/env bash
# Apply transformation to multiple revisions
# Usage: jj-batch-desc <SED_SCRIPT_FILE> <REV1> [REV2...]
# Example: jj-batch-desc /tmp/replacements.sed abc xyz mno

set -euo pipefail

if [[ $# -lt 2 ]]; then
  echo "Usage: jj-batch-desc <SED_SCRIPT_FILE> <REV1> [REV2...]" >&2
  exit 1
fi

sed_script="$1"
shift

if [[ ! -f "$sed_script" ]]; then
  echo "Error: sed script not found: $sed_script" >&2
  exit 1
fi

for rev in "$@"; do
  echo "Processing $rev..."
  tmpfile="/tmp/jj_desc_${rev}_$$.txt"
  jj log -r "$rev" -n1 --no-graph -T description > "$tmpfile"
  sed -f "$sed_script" "$tmpfile" | jj desc -r "$rev" --stdin
  rm -f "$tmpfile"
done

echo "✅ Processed $# revision(s)"