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

# Note: Source directory is qt-migration-legatus/qt6-after/qt6-migrated-legatus/ (submodule)
SUBMODULE_PATH="qt-migration-legatus/qt6-after/qt6-migrated-legatus"

echo "Ensuring clang-tidy and clang-format are installed"
sudo apt-get update
sudo apt-get install -y clang-tidy clang-format || true

BUILD_DIR=/repo/build_migrate_Lts_Common
if [ ! -f "$BUILD_DIR/compile_commands.json" ]; then
  echo "Regenerating compile_commands.json"
  cmake -S /repo/${SUBMODULE_PATH} -B $BUILD_DIR -G Ninja -DCMAKE_PREFIX_PATH=/opt/Qt/6.8.3/gcc_64 -DCMAKE_CXX_STANDARD=20 -DMIGRATE_MODULE=Lts/Common -DBUILD_TESTING=ON -DCMAKE_EXPORT_COMPILE_COMMANDS=ON
fi

echo "Running clang-tidy (safe modernize checks)"
CHECKS="modernize-*,-modernize-use-trailing-return-type,-modernize-raw-string-literal"

# Process each C/C++ source/header under Lts/Common (relative to submodule path)
git ls-files ${SUBMODULE_PATH}/Lts/Common | grep -E '\.(cpp|cc|cxx|h|hpp)$' | while read -r f; do
  echo "clang-tidy $f"
  clang-tidy "$f" -p "$BUILD_DIR" -checks="$CHECKS" --format-style=file -fix -quiet || true
done

# Format any modified files
git ls-files -m | grep "^${SUBMODULE_PATH}/Lts/Common" | while read -r f; do
  echo "clang-format $f"
  clang-format -i "$f" || true
done

# Commit changes if any
if [ -n "$(git status --porcelain)" ]; then
  git add ${SUBMODULE_PATH}/Lts/Common || true
  git commit -m "migrate(Lts/Common): apply clang-tidy modernization fixes\n\nCo-authored-by: Copilot <223556219+Copilot@users.noreply.github.com>" || true
fi

echo "Done. Modified files:"
git status --porcelain