#!/usr/bin/env bash
# Remove leading `// @ts-nocheck` occurrences (tiny PR safety).
# Usage: bash scripts/dev/phase1/remove-ts-nocheck.sh [--apply]
set -euo pipefail

MODE="dry"
[[ "${1-}" == "--apply" ]] && MODE="apply"

ROOT="$(git rev-parse --show-toplevel 2>/dev/null || echo .)"
OUTDIR="$ROOT/reports/phase1-$(date +%Y%m%d-%H%M%S)-ts-nocheck"
mkdir -p "$OUTDIR"

mapfile -t FILES < <(grep -RIl --include='*.{ts,tsx}' '^// *@ts-nocheck' "$ROOT/src" || true)
COUNT="${#FILES[@]}"
echo "Found $COUNT files with // @ts-nocheck"
printf '%s
' "${FILES[@]}" | tee "$OUTDIR/files.txt"

cleanup_file() {(
  f="$1"
  tmp="$f.__tmp__"
  awk 'NR==1 && $0 ~ /^\/\/ *@ts-nocheck/ {print "// TODO(Phase 1): removed ts-nocheck; fix types in Phase 2–3"; next} {print}' "$f" > "$tmp"
  if [[ "$MODE" == "apply" ]]; then
    mv "$tmp" "$f"
    echo "[APPLY] $f" >> "$OUTDIR/changes.log"
  else
    echo "[DRY] diff $f"
    git --no-pager diff --no-index "$f" "$tmp" || true
    rm -f "$tmp"
  fi
)}

for f in "${FILES[@]}"; do
  [[ -f "$f" ]] && cleanup_file "$f"
done

echo "Report: $OUTDIR"