name: Verify Generated Hook Headers

on:
  push:
  pull_request:

jobs:
  verify-generated-headers:
    strategy:
      fail-fast: false
      matrix:
        include:
          - target: hook/error.h
            generator: ./hook/generate_error.sh
          - target: hook/extern.h
            generator: ./hook/generate_extern.sh
          - target: hook/sfcodes.h
            generator: bash ./hook/generate_sfcodes.sh
          - target: hook/tts.h
            generator: ./hook/generate_tts.sh
    runs-on: ubuntu-24.04
    env:
      CLANG_VERSION: 18
    name: ${{ matrix.target }}
    steps:
      - name: Checkout repository
        uses: actions/checkout@v4

      - name: Install clang-format
        run: |
          codename=$( lsb_release --codename --short )
          sudo tee /etc/apt/sources.list.d/llvm.list >/dev/null <<EOF
          deb http://apt.llvm.org/${codename}/ llvm-toolchain-${codename}-${CLANG_VERSION} main
          deb-src http://apt.llvm.org/${codename}/ llvm-toolchain-${codename}-${CLANG_VERSION} main
          EOF
          wget -O - https://apt.llvm.org/llvm-snapshot.gpg.key | sudo apt-key add
          sudo apt-get update
          sudo apt-get install clang-format-${CLANG_VERSION}
          sudo ln -sf /usr/bin/clang-format-${CLANG_VERSION} /usr/local/bin/clang-format

      - name: Verify ${{ matrix.target }}
        run: |
          set -euo pipefail
          chmod +x hook/generate_*.sh || true

          tmp=$(mktemp)
          trap 'rm -f "$tmp"' EXIT

          ${{ matrix.generator }} > "$tmp"
          diff -u ${{ matrix.target }} "$tmp"