# Continuous integration for wl-webrtc.
#
# Triggered on push/PR to master. Runs the full quality gate that the recent
# audit baselined:
#   - clippy: 0 errors (undocumented_unsafe_blocks is deny in Cargo.toml; other
#     warnings are advisory for now).
#   - build --release: integration tests in tests/integration_test.rs shell out
#     to target/release/wl-webrtc, so the release binary must exist before tests
#     run.
#   - test --release: 79 unit + 3 integration; the 1 hardware-ignored test
#     stays ignored in CI (needs Wayland session + VAAPI GPU).
#   - cargo audit: separate job so a RUSTSEC advisory fails the build without
#     conflating with compile errors.
#
# The job pins Linux only — the project is Wayland/VAAPI-specific and has no
# macOS/Windows story. Oracle audit 2026-06-28 P2 plan.

name: CI

on:
  push:
    branches: [master]
  pull_request:
    branches: [master]

env:
  CARGO_TERM_COLOR: always
  # The self-hosted act_runner network can terminate index.crates.io with a
  # certificate that does not match the sparse-index hostname. Use Cargo's git
  # index path in CI; GitHub access is already required for the actions above.
  CARGO_REGISTRIES_CRATES_IO_PROTOCOL: git

jobs:
  build-test:
    name: Build + Clippy + Test
    runs-on: ubuntu-latest
    steps:
      - uses: https://gitea.com/actions/checkout@v4

      - name: Install Rust toolchain (stable)
        run: rustup toolchain install stable --profile minimal --component clippy && rustup default stable

      - name: Install system dependencies
        run: |
          APT_OPTS=(-o Acquire::Retries=5 -o Acquire::http::Timeout=30 -o Acquire::https::Timeout=30)
          sudo apt-get "${APT_OPTS[@]}" update --error-on=any
          # NOTE: do NOT use --no-install-recommends for libclang-dev — on
          # Debian Bookworm (the node:20-bookworm image used by act_runner
          # under ubuntu-latest) the recommended toolchain bits are needed
          # by bindgen. The pkg-config based deps (pipewire/wayland/etc)
          # are also more reliable without the flag.
          sudo apt-get "${APT_OPTS[@]}" install -y \
            ffmpeg \
            libavcodec-dev libavfilter-dev libavformat-dev libavutil-dev libswscale-dev libva-dev \
            libwayland-dev wayland-protocols \
            libdrm-dev \
            libpipewire-0.3-dev \
            libclang-dev clang

      - name: Resolve LIBCLANG_PATH
        # bindgen needs libclang on the LD path. The actual install location
        # varies by Debian/Ubuntu version (llvm-14, llvm-15, ...), so we
        # discover it dynamically instead of hardcoding /usr/lib/llvm-14/lib.
        # Writing to $GITHUB_ENV propagates the value to subsequent steps
        # inside the act_runner Docker container; the workflow-level `env:`
        # block is not reliably visible there.
        #
        # Find pattern note: Debian Bookworm installs the runtime library as
        # `libclang-14.so.1` (versioned, no plain libclang.so.* symlink),
        # so a strict 'libclang.so.*' pattern returns nothing. The broader
        # 'libclang*.so*' matches every bindgen-compatible filename variant:
        # libclang.so, libclang-14.so, libclang.so.1, libclang-14.so.1.
        run: |
          set -e
          LIBCL=$(find /usr -name 'libclang*.so*' 2>/dev/null | head -1)
          test -n "$LIBCL" || { echo "ERROR: no libclang shared lib found under /usr"; exit 1; }
          LIBDIR=$(dirname "$LIBCL")
          echo "Resolved LIBCLANG_PATH=$LIBDIR (found $LIBCL)"
          echo "LIBCLANG_PATH=$LIBDIR" >> "$GITHUB_ENV"

      - name: Cache cargo registry + build artifacts
        uses: https://gitea.com/actions/cache@v4
        with:
          path: |
            ~/.cargo/registry
            ~/.cargo/git
            target
          key: ${{ runner.os }}-cargo-${{ hashFiles('Cargo.lock', 'Cargo.toml') }}
          restore-keys: |
            ${{ runner.os }}-cargo-

      - name: Clippy (release, all targets)
        run: cargo clippy --release --all-targets

      - name: Build release (required before tests)
        run: cargo build --release --all-targets

      - name: Test (release)
        run: cargo test --release

  audit:
    name: Security audit (RUSTSEC)
    runs-on: ubuntu-latest
    # Keep separate from build-test so a vulnerability advisory fails the
    # check independently of compile state.
    steps:
      - uses: https://gitea.com/actions/checkout@v4

      - name: Install Rust toolchain (stable)
        run: rustup toolchain install stable --profile minimal && rustup default stable

      - name: Install cargo-audit
        run: cargo install cargo-audit --locked

      - name: Audit dependencies
        run: cargo audit --deny warnings