#!/usr/bin/env bash
# verify_build.sh - Quick build correctness/uptodate check
set -euo pipefail

if [[ $# -lt 1 ]]; then
  echo "Usage: $0 <binary>" >&2
  exit 1
fi

bin="$1"
if [[ ! -f "$bin" ]]; then
  echo "❌ Error: $bin not found" >&2
  exit 2
fi

# Check if any sources are newer than the binary
bin_time=$(stat -c %Y "$bin")
src_time=$(find core include adapters engines benchmarks/src -type f \( -name '*.c' -o -name '*.h' -o -name '*.inc' -o -name '*.inc.h' \) -printf '%T@\n' 2>/dev/null | sort -nr | head -n1 | cut -d. -f1)

if [[ -n "${src_time}" && "${src_time}" -gt "${bin_time}" ]]; then
  newest=$(find core include adapters engines benchmarks/src -type f \( -name '*.c' -o -name '*.h' -o -name '*.inc' -o -name '*.inc.h' \) -printf '%T@ %p\n' 2>/dev/null | sort -nr | head -n1 | cut -d' ' -f2-)
  echo "⚠️  Warning: Sources newer than binary: $newest" >&2
  exit 3
fi

echo "✅ Build verification passed for $bin"