# Windows builds with the toolchains contributors use, not just the MSVC one releases use: build
# the desktop app and the CLI with MSVC, with GNU (mingw-w64 from MSYS2, the setup CONTRIBUTING.md
# describes), and with GNU linked by Rust's bundled LLD plus mingw-w64's `libshlwapi.a` (#1886),
# then run each binary with `--version`. Both packages build in one `cargo build`, the way people
# build them, so features unify and the CLI links everything the desktop app pulls in.
name: Windows toolchains

# Nightly on main (a dependency update is what brings in a new system library), and on PRs that
# change this workflow or the lockfile.
on:
  schedule:
    - cron: "41 5 * * *"
  pull_request:
    paths:
      - .github/workflows/windows-toolchains.yml
      - Cargo.lock
  workflow_dispatch:

concurrency:
  group: windows-toolchains-${{ github.ref }}
  cancel-in-progress: ${{ github.event_name == 'pull_request' }}

permissions:
  contents: read

jobs:
  build:
    name: ${{ matrix.name }}
    runs-on: windows-latest
    timeout-minutes: 90
    strategy:
      fail-fast: false
      matrix:
        include:
          - { name: msvc, target: x86_64-pc-windows-msvc }
          - { name: gnu, target: x86_64-pc-windows-gnu }
          - { name: gnu-rust-lld, target: x86_64-pc-windows-gnu, rust-lld: true }
    defaults:
      run:
        shell: bash
    steps:
      - uses: actions/checkout@3d3c42e5aac5ba805825da76410c181273ba90b1 # v7.0.1
      - name: Rust (stable-${{ matrix.target }})
        run: |
          rustup toolchain install stable-${{ matrix.target }} --profile minimal --no-self-update
          rustup default stable-${{ matrix.target }}
          rustc -vV
      - name: mingw-w64 from MSYS2
        if: matrix.target == 'x86_64-pc-windows-gnu'
        run: /c/msys64/usr/bin/pacman -Sy --noconfirm --needed mingw-w64-x86_64-gcc
      - name: Put it first on PATH
        if: matrix.target == 'x86_64-pc-windows-gnu' && !matrix.rust-lld
        run: |
          printf '%s\n' 'C:\msys64\mingw64\bin' >> "$GITHUB_PATH"
      # Only libshlwapi.a, in a folder of its own: with all of mingw-w64's lib folder on the search
      # path, its C runtime mixes with Rust's bundled one (undefined `DllEntryPoint`).
      - name: Link with Rust's bundled LLD and mingw-w64's shlwapi import library
        if: matrix.rust-lld
        run: |
          mkdir -p /c/gnu-import-libs
          cp /c/msys64/mingw64/lib/libshlwapi.a /c/gnu-import-libs/
          echo 'CARGO_TARGET_X86_64_PC_WINDOWS_GNU_LINKER=rust-lld' >> "$GITHUB_ENV"
          echo 'CARGO_TARGET_X86_64_PC_WINDOWS_GNU_RUSTFLAGS=-C link-self-contained=yes -L native=C:/gnu-import-libs' >> "$GITHUB_ENV"
      - uses: Swatinem/rust-cache@6323deb102c322ba6fcbdcafc7e3dddab59af2b6 # v2.9.2
        with:
          key: ${{ matrix.name }}
      - name: Build the desktop app and the CLI
        run: |
          gcc --version | head -1 || true
          cargo build --locked --target ${{ matrix.target }} -p effectcraft -p effectcraft-cli
      - name: Run them
        run: |
          target/${{ matrix.target }}/debug/effectcraft.exe --version
          target/${{ matrix.target }}/debug/effectcraft-cli.exe --version