# Windows client CI — runs on the self-hosted Windows runner (home-windows-1, host mode; see
# scripts/ci/setup-windows-runner.ps1). Build + clippy + fmt + test the WinUI 3 client
# (windows-reactor + D3D11/SwapChainPanel + WASAPI + SDL3).
#
# Two architectures from ONE x64 runner: x86_64-pc-windows-msvc natively and
# aarch64-pc-windows-msvc by cross-compiling. The x64 MSVC toolset ships an ARM64 cross compiler
# (VC\Tools\MSVC\<ver>\bin\Hostx64\arm64\cl.exe) and aarch64-pc-windows-msvc is a tier-2 Rust
# target with host tools, so no ARM64 runner is needed — the cc/cmake crates pick the ARM64
# compiler from the target triple (SDL3 + libopus build-from-source cross-compile fine). The one
# arch-specific external dep is FFmpeg's import libs: the runner keeps an x64 tree at
# C:\Users\Public\ffmpeg and an ARM64 tree at C:\Users\Public\ffmpeg-arm64 (both FFmpeg 7.x /
# avcodec-61); the matrix points FFMPEG_DIR at the right one. aarch64 can't *run* on the x64 host,
# so fmt + test run only for x64.
#
# The MSVC/WinUI/FFmpeg toolchain (cargo/rustup on ASCII paths, NASM, CMake, LLVM, the x64 FFmpeg,
# CARGO_HOME, CMAKE_POLICY_VERSION_MINIMUM, …) is baked into the runner's daemon env. Per-checkout
# / per-arch vars are set in a step:
#   - CARGO_WORKSPACE_DIR  windows-reactor's build.rs unwraps it + stages the Win App SDK
#                          NuGets/winmd under it (from GITHUB_WORKSPACE).
#   - CARGO_TARGET_DIR=C:\t…  the runner's host workdir is buried deep under
#                          C:\Windows\System32\config\systemprofile\.cache\act\<hash>\hostexecutor\,
#                          so the default target\ path blows past Windows' MAX_PATH (260) inside the
#                          CMake-from-source builds (audiopus_sys / SDL3) — MSBuild's tracker then
#                          can't create its .tlog (DirectoryNotFoundException -> MSB6003). A short
#                          root keeps every nested path well under the limit (per-arch so the two
#                          matrix legs don't share a target dir).
#   - FFMPEG_DIR           per-arch FFmpeg import libs (x64 vs arm64 tree).
#
# Steps use `shell: pwsh` (PowerShell 7) deliberately: Windows PowerShell 5.1's
# `Out-File -Encoding utf8` prepends a UTF-8 BOM that corrupts the first GITHUB_ENV line (the
# CARGO_WORKSPACE_DIR var silently never gets set -> reactor build.rs panics). pwsh writes no BOM.
# The runner's daemon wrapper puts C:\Program Files\PowerShell\7 on PATH so the job finds pwsh.
name: windows

on:
  push:
    branches: [main]
    paths:
      - 'clients/windows/**'
      - 'crates/punktfunk-core/**'
      - 'Cargo.lock'
      - 'Cargo.toml'
      - '.gitea/workflows/windows.yml'
  pull_request:
    paths:
      - 'clients/windows/**'
      - 'crates/punktfunk-core/**'
      - 'Cargo.lock'
      - 'Cargo.toml'
      - '.gitea/workflows/windows.yml'
  workflow_dispatch:

jobs:
  build:
    runs-on: windows-amd64
    timeout-minutes: 90
    strategy:
      fail-fast: false
      matrix:
        target: [x86_64-pc-windows-msvc, aarch64-pc-windows-msvc]
    steps:
      - uses: actions/checkout@v4

      - name: Configure + toolchain versions
        shell: pwsh
        run: |
          "CARGO_WORKSPACE_DIR=$env:GITHUB_WORKSPACE" | Out-File -FilePath $env:GITHUB_ENV -Append -Encoding utf8
          # Per-arch short target root (dodges MAX_PATH; keeps the two legs from sharing target\).
          $td = if ('${{ matrix.target }}' -eq 'aarch64-pc-windows-msvc') { 'C:\t-a64' } else { 'C:\t' }
          "CARGO_TARGET_DIR=$td" | Out-File -FilePath $env:GITHUB_ENV -Append -Encoding utf8
          # Per-arch FFmpeg import libs (the runner provisions both — setup-windows-runner.ps1).
          $ff = if ('${{ matrix.target }}' -eq 'aarch64-pc-windows-msvc') { 'C:\Users\Public\ffmpeg-arm64' } else { 'C:\Users\Public\ffmpeg' }
          "FFMPEG_DIR=$ff" | Out-File -FilePath $env:GITHUB_ENV -Append -Encoding utf8
          rustup target add ${{ matrix.target }}
          rustc --version
          cargo --version
          Write-Output "target ${{ matrix.target }}  target-dir $td  ffmpeg $ff"

      - name: Build
        shell: pwsh
        run: cargo build -p punktfunk-client-windows --target ${{ matrix.target }}

      - name: Clippy (-D warnings)
        shell: pwsh
        run: cargo clippy -p punktfunk-client-windows --all-targets --target ${{ matrix.target }} -- -D warnings

      - name: Rustfmt check
        if: matrix.target == 'x86_64-pc-windows-msvc'
        shell: pwsh
        run: cargo fmt -p punktfunk-client-windows -- --check

      - name: Test
        if: matrix.target == 'x86_64-pc-windows-msvc'
        shell: pwsh
        run: cargo test -p punktfunk-client-windows --target ${{ matrix.target }}