on: [push, pull_request]

name: Basic CI

env:
  CARGO_TERM_COLOR: always

jobs:
  check:
    name: cargo check
    runs-on: ${{ matrix.os }}
    strategy:
      matrix:
        os: [ubuntu-latest, macOS-latest, windows-latest]
    steps:
      - uses: actions/checkout@v6
      - uses: dtolnay/rust-toolchain@stable
      - run: cargo check

  check_android:
    name: cargo check (Android ${{ matrix.target }})
    runs-on: ubuntu-latest
    strategy:
      matrix:
        target: [aarch64-linux-android, armv7-linux-androideabi]
    steps:
      - uses: actions/checkout@v6
      - uses: dtolnay/rust-toolchain@stable
        with:
          targets: ${{ matrix.target }}
      - uses: android-actions/setup-android@v4
      - name: Install Android NDK
        run: sdkmanager "ndk;29.0.14206865"
      - name: Install cargo-ndk
        run: cargo install cargo-ndk
      - name: Check Android target
        run: cargo ndk --platform 21 --target ${{ matrix.target }} check
        env:
          ANDROID_NDK_HOME: ${{ env.ANDROID_SDK_ROOT }}/ndk/29.0.14206865

  test:
    name: cargo test
    runs-on: ${{ matrix.os }}
    strategy:
      matrix:
        os: [ubuntu-latest, macOS-latest, windows-latest]
    steps:
      - name: Set Git to use LF, even on Windows
        run: |
          git config --global core.autocrlf false
          git config --global core.eol lf
      - uses: actions/checkout@v6
      - uses: dtolnay/rust-toolchain@stable
      - run: cargo test --all

  coverage:
    name: Code Coverage
    runs-on: ${{ matrix.job.os }}
    strategy:
      fail-fast: true
      matrix:
        job:
          - { os: ubuntu-latest  , features: unix }
          - { os: macos-latest   , features: macos }
          - { os: windows-latest , features: windows }
    steps:
    - name: Set Git to use LF, even on Windows
      run: |
        git config --global core.autocrlf false
        git config --global core.eol lf
    - uses: actions/checkout@v6
    - name: Initialize workflow variables
      id: vars
      shell: bash
      run: |
        ## VARs setup
        outputs() { step_id="vars"; for var in "$@" ; do echo steps.${step_id}.outputs.${var}="${!var}"; echo "${var}=${!var}" >> $GITHUB_OUTPUT; done; }
        # toolchain
        TOOLCHAIN="nightly" ## default to "nightly" toolchain (required for certain required unstable compiler flags) ## !maint: refactor when stable channel has needed support
        # * specify gnu-type TOOLCHAIN for windows; `grcov` requires gnu-style code coverage data files
        case ${{ matrix.job.os }} in windows-*) TOOLCHAIN="$TOOLCHAIN-x86_64-pc-windows-gnu" ;; esac;
        # * use requested TOOLCHAIN if specified
        if [ -n "${{ matrix.job.toolchain }}" ]; then TOOLCHAIN="${{ matrix.job.toolchain }}" ; fi
        outputs TOOLCHAIN
        # target-specific options
        # * CODECOV_FLAGS
        CODECOV_FLAGS=$( echo "${{ matrix.job.os }}" | sed 's/[^[:alnum:]]/_/g' )
        outputs CODECOV_FLAGS

    - name: rust toolchain ~ install
      uses: dtolnay/rust-toolchain@nightly
    - run: rustup component add llvm-tools-preview
    - name: Test
      run: cargo test --no-fail-fast
      env:
        CARGO_INCREMENTAL: "0"
        RUSTC_WRAPPER: ""
        RUSTFLAGS: "-Cinstrument-coverage -Zcoverage-options=branch -Ccodegen-units=1 -Copt-level=0 -Coverflow-checks=off -Zpanic_abort_tests -Cpanic=abort"
        RUSTDOCFLAGS: "-Cpanic=abort"
        LLVM_PROFILE_FILE: "sed-%p-%m.profraw"
    - name: "`grcov` ~ install"
      id: build_grcov
      shell: bash
      run: |
        git clone https://github.com/mozilla/grcov.git ~/grcov/
        cd ~/grcov
        cargo install --path .
        cd -
# Uncomment when the upstream issue
# https://github.com/mozilla/grcov/issues/849 is fixed
#      uses: actions-rs/install@v0.1
#      with:
#        crate: grcov
#        version: latest
#        use-tool-cache: false
    - name: Generate coverage data (via `grcov`)
      id: coverage
      shell: bash
      run: |
        set -v
        ## Generate coverage data
        COVERAGE_REPORT_DIR="target/debug"
        COVERAGE_REPORT_FILE="${COVERAGE_REPORT_DIR}/lcov.info"
        mkdir -p "${COVERAGE_REPORT_DIR}"
        # display coverage files
        grcov . --output-type files --binary-path "${COVERAGE_REPORT_DIR}" --source-dir . --keep-only "src/*" | sort --unique
        # generate coverage report
        grcov . --output-type lcov --output-path "${COVERAGE_REPORT_FILE}" --binary-path "${COVERAGE_REPORT_DIR}" --source-dir . --keep-only "src/*" --branch
        ls -al ${COVERAGE_REPORT_FILE}
        ls -al
        echo "report=${COVERAGE_REPORT_FILE}" >> $GITHUB_OUTPUT
    - name: Upload coverage results (to Codecov.io)
      uses: codecov/codecov-action@v7
      with:
        token: ${{ secrets.CODECOV_TOKEN }}
        files: ${{ steps.coverage.outputs.report }}
        ## flags: IntegrationTests, UnitTests, ${{ steps.vars.outputs.CODECOV_FLAGS }}
        flags: ${{ steps.vars.outputs.CODECOV_FLAGS }}
        name: codecov-umbrella
        fail_ci_if_error: false