name: CI
on:
  push:
    branches:
    - master
    - 'v*.*'
  pull_request:
    branches:
    - master
    - 'v*.*'
  schedule:
    - cron: '0 0 * * 0'

jobs:
  lock:
    name: Cargo.lock
    runs-on: ubuntu-latest
    steps:
      - name: Checkout the Repository
        uses: actions/checkout@v4
      - name: Install the Rust toolchain
        uses: actions-rs/toolchain@v1
        with:
          toolchain: nightly
          profile: minimal
          override: true
      - name: Generate the minimum version lockfile
        run: |
          cargo update -Z minimal-versions
          cargo update -Z direct-minimal-versions
          mv Cargo.lock Cargo.lock.min
      - name: Generate the current version lockfile
        run: cargo update
      - name: Upload the Cargo lockfiles
        uses: actions/upload-artifact@v4
        with:
          name: Cargo.lock
          path: |
            Cargo.lock
            Cargo.lock.min

  check:
    name: Check (${{ matrix.rust }}${{ matrix.lock == '"Cargo.lock.min"' && ' (Cargo.lock.min)' || ''}})
    runs-on: ubuntu-latest
    needs: lock

    strategy:
      matrix:
        rust: [1.64.0, stable, nightly]
        lock: ["Cargo.lock", "Cargo.lock.min"]

    steps:
      - uses: actions/checkout@v4
      - name: Download the Cargo lockfiles
        uses: actions/download-artifact@v4
        with:
          name: Cargo.lock
      - name: Rename ${{ matrix.lock }} to Cargo.lock
        run: mv ${{ matrix.lock }} Cargo.lock
        if: ${{ matrix.lock != 'Cargo.lock' }}
      - uses: ./.github/actions/setup
        with:
          key: test-${{ matrix.rust }}-${{ matrix.lock }}
      - uses: actions-rs/toolchain@v1
        with:
          toolchain: ${{ matrix.rust }}
          profile: minimal
          components: clippy
          override: true
      - uses: taiki-e/install-action@cargo-hack
      - name: Downgrade dependencies to MSRV 1.64
        run: |
          cargo update -p serde_bytes --precise 0.11.16
          cargo update -p indexmap --precise 2.5.0
          cargo update -p once_cell --precise 1.20.3
        if: ${{ matrix.rust == '1.64.0' || matrix.rust == '1.81.0' }}
      - name: Check
        run: |
          cargo hack check --feature-powerset --no-dev-deps
      - name: Clean
        run: |
          cargo clean
      - name: Clippy
        run: |
          cargo hack clippy --feature-powerset --no-dev-deps -- -D warnings -A unknown-lints
        # Clippy will report lints that cannot be acted on without increasing MSRV on later versions of Rust
        if: ${{ matrix.rust == '1.64.0' }}
      - name: Clean
        run: |
          cargo clean
      - name: Test
        run: |
          cargo hack test --feature-powerset --clean-per-run

  clippy-fuzz:
    name: "Clippy: Fuzzer"
    runs-on: ubuntu-latest
    continue-on-error: true
    steps:
      - uses: actions/checkout@v4
      - uses: ./.github/actions/setup
        with:
          key: clippy-fuzz
      - uses: actions-rs/toolchain@v1
        with:
          toolchain: stable
          profile: minimal
          components: clippy
          override: true
      - run: cd fuzz && cargo clippy --all -- -D warnings
  
  rustfmt:
    name: "Format: stable"
    runs-on: ubuntu-latest
    steps:
      - uses: actions/checkout@v4
      - uses: ./.github/actions/setup
        with:
          key: rustfmt-stable
      - uses: actions-rs/toolchain@v1
        with:
          toolchain: stable
          profile: minimal
          components: rustfmt
          override: true
      - run: cargo fmt --all -- --check
      - run: cd fuzz && cargo fmt --all -- --check

  coverage:
    name: "Coverage: stable"
    runs-on: ubuntu-latest
    steps:
      - uses: actions/checkout@v4
      - uses: ./.github/actions/setup
        with:
          key: coverage
      - uses: actions-rs/toolchain@v1
        with:
          toolchain: stable
          profile: minimal
          components: llvm-tools-preview
          override: true
      - name: Download grcov
        run: |
          curl -sL https://github.com/mozilla/grcov/releases/download/v0.8.18/grcov-x86_64-unknown-linux-gnu.tar.bz2 | tar jxf -
          chmod +x ./grcov
      - name: Generate the coverage data
        run: |
          cargo clean
          cargo test --all-targets
          cargo test --features integer128 --all-targets
          cargo test --features indexmap --all-targets
          cargo test --all-features --all-targets
        env:
          CARGO_INCREMENTAL: 0
          RUSTFLAGS: -Cinstrument-coverage
          RUSTDOCFLAGS: -Cinstrument-coverage
          LLVM_PROFILE_FILE: coverage/coverage-%p-%m.profraw
      - name: Generate the coverage reports
        run: |
          ./grcov . -s . --binary-path ./target/debug/deps \
            -t lcov -o coverage.lcov --branch \
            --keep-only "src/*" \
            --keep-only "tests/*" \
            --ignore-not-existing \
            --excl-line GRCOV_EXCL_LINE \
            --excl-start GRCOV_EXCL_START \
            --excl-stop GRCOV_EXCL_STOP
          ./grcov . -s . --binary-path ./target/debug/deps \
            -t html --branch \
            --keep-only "src/*" \
            --keep-only "tests/*" \
            --ignore-not-existing \
            --excl-line GRCOV_EXCL_LINE \
            --excl-start GRCOV_EXCL_START \
            --excl-stop GRCOV_EXCL_STOP
          rm -rf html/badges
      # - name: Upload the coverage report to codecov.io
      #   uses: codecov/codecov-action@v1
      #   with:
      #     files: coverage.lcov
      #     fail_ci_if_error: true
      - name: Deploy the code coverage report
        uses: peaceiris/actions-gh-pages@v4
        with:
          github_token: ${{ secrets.GITHUB_TOKEN }}
          publish_dir: ./html
          destination_dir: coverage
        if: github.event_name != 'pull_request' && github.ref == 'refs/heads/master'