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

SCRIPT="$(git rev-parse --show-toplevel)/scripts/util/sanitize_node.sh"

FILES=$(git diff --cached --name-only --diff-filter=ACM -- 'nodes/*.json' || true)

[[ -z "$FILES" ]] && exit 0

DIRTY=0

while IFS= read -r file; do
  staged_tmp=$(mktemp)
  sanitized_tmp=$(mktemp)

  # 1. get staged version
  git show ":$file" > "$staged_tmp"

  # 2. sanitize IN PLACE (on temp copy)
  cp "$staged_tmp" "$sanitized_tmp"
  "$SCRIPT" "$sanitized_tmp"

  # 3. if sanitizer changed file, update working tree
  if ! diff -q "$staged_tmp" "$sanitized_tmp" >/dev/null; then
    cp "$sanitized_tmp" "$file"
    echo "Sanitized: $file"
    DIRTY=1
  fi

  rm -f "$staged_tmp" "$sanitized_tmp"

done <<< "$FILES"

if [[ "$DIRTY" -ne 0 ]]; then
  echo ""
  echo "Commit paused, sanitized files must be re-staged."
  exit 1
fi

exit 0