name: CI

on:
  push:
    branches: [main, dev]
  pull_request:

env:
  CARGO_TERM_COLOR: always
  RUST_BACKTRACE: 1

jobs:
  test:
    name: Test (${{ matrix.features }})
    runs-on: ubuntu-latest
    strategy:
      fail-fast: false
      matrix:
        features:
          - default
          - no-default-features
          - all-features
    steps:
      - uses: actions/checkout@v4
      - uses: dtolnay/rust-toolchain@stable
      - uses: Swatinem/rust-cache@v2
      - uses: taiki-e/install-action@v2
        with:
          tool: nextest
      - name: cargo nextest run
        run: |
          case "${{ matrix.features }}" in
            default)             cargo nextest run ;;
            no-default-features) cargo nextest run --no-default-features ;;
            all-features)        cargo nextest run --all-features ;;
          esac
      - name: cargo test --doc
        run: cargo test --doc

  clippy:
    name: Clippy (${{ matrix.features }})
    runs-on: ubuntu-latest
    strategy:
      fail-fast: false
      matrix:
        features:
          - default
          - no-default-features
          - all-features
    steps:
      - uses: actions/checkout@v4
      - uses: dtolnay/rust-toolchain@stable
        with:
          components: clippy
      - uses: Swatinem/rust-cache@v2
      - name: cargo clippy
        run: |
          case "${{ matrix.features }}" in
            default)             cargo clippy --all-targets -- -D warnings ;;
            no-default-features) cargo clippy --all-targets --no-default-features -- -D warnings ;;
            all-features)        cargo clippy --all-targets --all-features -- -D warnings ;;
          esac

  fmt:
    name: Format
    runs-on: ubuntu-latest
    steps:
      - uses: actions/checkout@v4
      - uses: dtolnay/rust-toolchain@stable
        with:
          components: rustfmt
      - run: cargo fmt -- --check

  doc:
    name: Doc
    runs-on: ubuntu-latest
    env:
      RUSTDOCFLAGS: -D warnings
    steps:
      - uses: actions/checkout@v4
      - uses: dtolnay/rust-toolchain@stable
      - uses: Swatinem/rust-cache@v2
      - run: cargo doc --no-deps --all-features

  deny:
    name: Cargo Deny
    runs-on: ubuntu-latest
    steps:
      - uses: actions/checkout@v4
      - uses: EmbarkStudios/cargo-deny-action@v2

  miri:
    name: Miri
    runs-on: ubuntu-latest
    steps:
      - uses: actions/checkout@v4
      - uses: dtolnay/rust-toolchain@nightly
        with:
          components: miri
      - uses: Swatinem/rust-cache@v2
      - uses: taiki-e/install-action@v2
        with:
          tool: nextest
      - run: cargo +nightly miri nextest run --lib --test vectors
      - run: cargo +nightly miri nextest run --lib --test vectors --no-default-features

  fuzz:
    name: Fuzz (60s per target)
    runs-on: ubuntu-latest
    steps:
      - uses: actions/checkout@v4
      - uses: dtolnay/rust-toolchain@nightly
      - uses: Swatinem/rust-cache@v2
        with:
          workspaces: |
            .
            fuzz
      - uses: taiki-e/install-action@v2
        with:
          tool: cargo-fuzz
      - name: Build fuzz targets
        working-directory: fuzz
        # Pin to the gnu target — cargo-fuzz defaults to musl for ASAN
        # static linking, but the nightly toolchain we install doesn't
        # ship a musl std.
        run: cargo +nightly fuzz build --target x86_64-unknown-linux-gnu
      - name: Smoke-run every target
        working-directory: fuzz
        run: |
          for target in decoder_feed frame_roundtrip lora_config_roundtrip parse_command parse_device_message; do
            echo "── $target ──"
            cargo +nightly fuzz run "$target" --target x86_64-unknown-linux-gnu -- -max_total_time=60
          done

  mutants:
    name: Mutants
    runs-on: ubuntu-latest
    strategy:
      fail-fast: false
      matrix:
        features:
          - default
          - no-default-features
    steps:
      - uses: actions/checkout@v4
      - uses: dtolnay/rust-toolchain@stable
      - uses: Swatinem/rust-cache@v2
      - uses: taiki-e/install-action@v2
        with:
          tool: cargo-mutants, nextest
      - name: cargo mutants (${{ matrix.features }})
        run: |
          extra=""
          [ "${{ matrix.features }}" = "no-default-features" ] && extra="--no-default-features"
          cargo mutants --no-shuffle --test-tool=nextest $extra \
            -E 'replace > with >= in Command::from_bytes' \
            -E 'replace > with >= in CobsDecoder::feed' \
            -E 'replace < with <= in cobs_encode_response'
      - name: Upload mutants.out on failure
        if: failure()
        uses: actions/upload-artifact@v4
        with:
          name: mutants-${{ matrix.features }}
          path: mutants.out