name: ci
on: [push, pull_request]
jobs:
  test:
    runs-on: ubuntu-latest
    steps:
      - uses: actions/checkout@v4
      - run: |
          set -u
          apt_updated=0
          install_packages() {
            command -v apt-get >/dev/null || { echo 'Java build requires apt-get on this runner'; exit 1; }
            if [ "$apt_updated" -eq 0 ]; then
              apt-get update
              apt_updated=1
            fi
            DEBIAN_FRONTEND=noninteractive apt-get install --yes --no-install-recommends "$@"
          }
          ensure_java() {
            command -v java >/dev/null || install_packages openjdk-17-jdk-headless
          }
          if [ -f mvnw ]; then
            ensure_java
            chmod +x mvnw
            ./mvnw -B test
          elif [ -f pom.xml ]; then
            ensure_java
            if ! command -v mvn >/dev/null; then
              install_packages maven
            fi
            mvn -B test
          elif [ -f gradlew ]; then
            ensure_java
            chmod +x gradlew
            ./gradlew test
          elif [ -f build.gradle ] || [ -f build.gradle.kts ]; then
            ensure_java
            command -v gradle >/dev/null || { echo 'Gradle build requires a wrapper or installed Gradle'; exit 1; }
            gradle test
          elif [ -f package.json ]; then
            command -v node >/dev/null || { echo 'package.json requires Node.js'; exit 1; }
            package_manager=$(node -p "String(require('./package.json').packageManager || '').split('@')[0]")
            if [ -n "$package_manager" ] && [ "$package_manager" != npm ] && [ "$package_manager" != pnpm ] && [ "$package_manager" != yarn ]; then
              echo "unsupported packageManager: $package_manager"
              exit 1
            fi
            if [ "$package_manager" = pnpm ] || { [ -z "$package_manager" ] && [ -f pnpm-lock.yaml ]; }; then
              command -v corepack >/dev/null || { echo 'pnpm lockfile requires corepack'; exit 1; }
              corepack enable
              command -v pnpm >/dev/null || { echo 'pnpm is unavailable after corepack enable'; exit 1; }
              pnpm install --frozen-lockfile
              pnpm run --if-present test
              pnpm run --if-present build
            elif [ "$package_manager" = yarn ] || { [ -z "$package_manager" ] && [ -f yarn.lock ]; }; then
              command -v corepack >/dev/null || { echo 'yarn lockfile requires corepack'; exit 1; }
              corepack enable
              command -v yarn >/dev/null || { echo 'yarn is unavailable after corepack enable'; exit 1; }
              yarn install --frozen-lockfile
              if node -e "process.exit(require('./package.json').scripts?.test ? 0 : 1)"; then
                yarn test
              fi
              if node -e "process.exit(require('./package.json').scripts?.build ? 0 : 1)"; then
                yarn build
              fi
            else
              command -v npm >/dev/null || { echo 'package.json requires npm'; exit 1; }
              if [ -f package-lock.json ]; then
                npm ci
              else
                npm install
              fi
              npm run --if-present test
              npm run --if-present build
            fi
          elif [ -f pyproject.toml ] || [ -f pytest.ini ] || [ -d tests ]; then
            python3 -m pip install --quiet pytest
            rc=0
            pytest -q || rc=$?
            [ "$rc" -eq 5 ] && exit 0
            exit "$rc"
          elif find . -type f \( -path '*/src/test/*' -o -name '*Test.java' -o -name '*_test.py' -o -name '*.test.*' -o -name '*.spec.*' \) -print -quit | grep -q .; then
            echo 'test files found but no supported build manifest'
            exit 1
          else
            echo 'artifact-only change: no executable build contract'
          fi