name: Cargo Build, Test, and Linting

on:
  push:
  pull_request:
  workflow_dispatch:

env:
  CARGO_TERM_COLOR: always
  RUSTFLAGS: "-Dwarnings"

jobs:
  format:
    name: Check formatting
    runs-on: ubuntu-latest
    strategy:
      matrix:
        toolchain:
          - stable
    steps:
      - uses: actions/checkout@v7
        with:
          submodules: recursive
      - run: rustup update ${{ matrix.toolchain }} && rustup default ${{ matrix.toolchain }}
      - run: rustup component add rustfmt
      - uses: Swatinem/rust-cache@v2
      - run: cargo fmt --check
  machete:
    name: Detect unused dependencies
    runs-on: ubuntu-latest
    strategy:
      matrix:
        toolchain:
          - stable
    steps:
      - uses: actions/checkout@v7
        with:
          submodules: recursive
      - run: rustup update ${{ matrix.toolchain }} && rustup default ${{ matrix.toolchain }}
      - uses: bnjbvr/cargo-machete@main
  clippy_debug:
    name: Run lints (debug)
    runs-on: ubuntu-latest
    strategy:
      matrix:
        toolchain:
          - stable
    steps:
      - uses: actions/checkout@v7
        with:
          submodules: recursive
      - run: rustup update ${{ matrix.toolchain }} && rustup default ${{ matrix.toolchain }}
      - run: rustup component add clippy
      - uses: Swatinem/rust-cache@v2
      - name: Clippy (debug)
        run: cargo clippy --all-targets --all-features
  clippy_release:
    name: Run lints (release)
    runs-on: ubuntu-latest
    strategy:
      matrix:
        toolchain:
          - stable
    steps:
      - uses: actions/checkout@v7
        with:
          submodules: recursive
      - run: rustup update ${{ matrix.toolchain }} && rustup default ${{ matrix.toolchain }}
      - run: rustup component add clippy
      - uses: Swatinem/rust-cache@v2
      - name: Clippy (release)
        run: cargo clippy --release --all-targets --all-features
  build_and_test:
    name: Build project and test
    runs-on: ${{ matrix.os }}
    needs: [format, machete, clippy_debug, clippy_release]
    strategy:
      matrix:
        os:
          [
            ubuntu-latest,
            ubuntu-26.04-arm,
            windows-latest,
            windows-11-arm,
            macos-latest,
          ]
        toolchain:
          - stable
    steps:
      - uses: actions/checkout@v7
        with:
          submodules: recursive
      - run: rustup update ${{ matrix.toolchain }} && rustup default ${{ matrix.toolchain }}
      - uses: taiki-e/install-action@nextest
      - uses: Swatinem/rust-cache@v2
      - name: Cargo nextest
        run: cargo nextest run --verbose
      - name: Cargo doctest
        run: cargo test --doc --verbose
  build_release:
    name: Build project in release
    runs-on: ${{ matrix.os }}
    needs: [build_and_test]
    strategy:
      matrix:
        os:
          [
            ubuntu-latest,
            ubuntu-26.04-arm,
            windows-latest,
            windows-11-arm,
            macos-latest,
          ]
        toolchain:
          - stable
    steps:
      - uses: actions/checkout@v7
        with:
          submodules: recursive

      - run: rustup update ${{ matrix.toolchain }} && rustup default ${{ matrix.toolchain }}
      - uses: Swatinem/rust-cache@v2
      
      - name: Install musl-tools (Linux only)
        if: runner.os == 'Linux'
        run: |
          sudo apt-get update
          sudo apt-get install -y musl-tools

      - name: Build Release
        shell: bash
        run: |
          cargo build --verbose --release
          if [ "${{ runner.os }}" == "Linux" ]; then
            if [ "${{ runner.arch }}" == "X64" ]; then
              TARGET="x86_64-unknown-linux-musl"
            elif [ "${{ runner.arch }}" == "ARM64" ]; then
              TARGET="aarch64-unknown-linux-musl"
            fi
            rustup target add "$TARGET"
            cargo build --verbose --release --target "$TARGET"
          fi
          
      - name: Prepare artifacts
        shell: bash
        run: |
          mkdir -p dist
          EXT=""
          if [ "${{ runner.os }}" == "Windows" ]; then EXT=".exe"; fi
          cp "target/release/pumpkin$EXT" "dist/pumpkin-${{ runner.arch }}-${{ runner.os }}$EXT"
          if [ "${{ runner.os }}" == "Linux" ]; then
            if [ "${{ runner.arch }}" == "X64" ]; then
              TARGET="x86_64-unknown-linux-musl"
            elif [ "${{ runner.arch }}" == "ARM64" ]; then
              TARGET="aarch64-unknown-linux-musl"
            fi
            cp "target/$TARGET/release/pumpkin" "dist/pumpkin-${{ runner.arch }}-${{ runner.os }}-musl"
          fi
      - name: Export executable
        uses: actions/upload-artifact@v7
        with:
          name: pumpkin-${{ runner.arch }}-${{ runner.os }}
          compression-level: 9
          path: dist/pumpkin-*
  draft_release:
    permissions:
      contents: write
    needs: [build_release]
    runs-on: ubuntu-latest
    if: github.event_name == 'push' && github.ref == 'refs/heads/master'
    steps:
      - uses: actions/checkout@v7
        with:
          submodules: recursive
      - name: Download prebuilt binary artifacts
        uses: actions/download-artifact@v8
        with:
          pattern: "**/pumpkin-*"
          path: dist/
          merge-multiple: true
      - name: Generate release notes
        run: |
          tree dist/
          echo "From commit: $(git rev-parse --short HEAD)" > dist/RELEASE.md
          echo "Generated on: $(date -u +"%Y-%m-%d %H:%M") UTC" >> dist/RELEASE.md
          cat dist/RELEASE.md

      - name: Update the nightly tag
        run: |
          git config user.name "github-actions[bot]"
          git config user.email "github-actions[bot]@users.noreply.github.com"
          git tag --force nightly && git push --force origin tag nightly

      - name: Draft a nightly github release
        uses: softprops/action-gh-release@v3
        with:
          prerelease: true
          files: dist/pumpkin*
          tag_name: nightly
          name: Nightly Build
          body_path: dist/RELEASE.md