# Builds Frame Studio for every computer it runs on, plus a same-commit Frame Home payload, on branch pushes,
# pull requests, and by hand (Actions > build > Run workflow). A push to main replaces the Studio "latest" pre-release
# and includes the Frame Home installer. A tag "v*" publishes a versioned release containing both products.
name: build

on:
  push:
    branches: ['**']
    tags: ['v*']
  pull_request:
  workflow_dispatch:

permissions:
  contents: read

# A newer push to the same branch replaces a run still going (its builds would be out of date anyway).
concurrency:
  group: build-${{ github.ref }}
  cancel-in-progress: true

# Every Studio build knows the commit it's from (studio/updater.h compares it with the latest release's).
env:
  FRAME_BUILD: ${{ github.sha }}
  FRAME_HOME_PAYLOAD_DIR: ${{ github.workspace }}/build/frame-home/payload

jobs:
  linux:
    name: Linux ${{ matrix.arch }}
    needs: [frame-home]
    strategy:
      fail-fast: false
      matrix:
        include:
          - { arch: x64, runner: ubuntu-24.04, extra: "" }
          - { arch: x86, runner: ubuntu-24.04, i386: true,
              extra: "gcc-multilib g++-multilib libx11-dev:i386 libxrandr-dev:i386 libxinerama-dev:i386 libxcursor-dev:i386 libxi-dev:i386" }
          - { arch: arm64, runner: ubuntu-24.04-arm, extra: "" }
    runs-on: ${{ matrix.runner }}
    timeout-minutes: 45
    steps:
      - uses: actions/checkout@v4
      - uses: actions/download-artifact@v4
        with:
          name: FrameHome-payload
          path: build/frame-home/payload
          if-no-files-found: error
      - name: Tools and X11 headers
        run: |
          # x86 links against 32-bit X11, so apt needs the i386 packages too
          if [ "${{ matrix.i386 }}" = "true" ]; then sudo dpkg --add-architecture i386; fi
          sudo apt-get update
          sudo apt-get install -y ninja-build cmake libx11-dev libxrandr-dev libxinerama-dev libxcursor-dev libxi-dev libxkbcommon-dev ${{ matrix.extra }}
      - name: Build
        run: sh scripts/build-studio.sh linux-${{ matrix.arch }}
      - uses: actions/upload-artifact@v4
        with:
          name: FrameStudio-linux-${{ matrix.arch }}
          path: dist/FrameStudio-linux-${{ matrix.arch }}.tar.gz

  windows:
    name: Windows ${{ matrix.arch }}
    needs: [frame-home]
    strategy:
      fail-fast: false
      matrix:
        arch: [x64, x86, arm64]
    runs-on: windows-latest
    timeout-minutes: 45
    steps:
      - uses: actions/checkout@v4
      - uses: actions/download-artifact@v4
        with:
          name: FrameHome-payload
          path: build/frame-home/payload
      - name: Build (MSVC)
        shell: cmd
        run: studio\build_windows.bat ${{ matrix.arch }} "%GITHUB_WORKSPACE%\build\windows-${{ matrix.arch }}"
      - name: Package
        shell: pwsh
        run: |
          $name = "FrameStudio-windows-${{ matrix.arch }}"
          $stage = "build/stage/$name"
          New-Item -ItemType Directory -Force $stage | Out-Null
          Copy-Item "build/windows-${{ matrix.arch }}/Frame Studio.exe" $stage
          Copy-Item -Recurse "build/windows-${{ matrix.arch }}/frame" "$stage/frame"
          Copy-Item LICENSE "$stage/LICENSE.txt"
          New-Item -ItemType Directory -Force dist | Out-Null
          Compress-Archive -Path $stage -DestinationPath "dist/$name.zip" -Force
      - uses: actions/upload-artifact@v4
        with:
          name: FrameStudio-windows-${{ matrix.arch }}
          path: dist/FrameStudio-windows-${{ matrix.arch }}.zip

  macos:
    name: macOS ${{ matrix.arch }}
    needs: [frame-home]
    strategy:
      fail-fast: false
      matrix:
        include:
          - { arch: arm64, runner: macos-14 }
          # Intel: macos-13 was retired (Dec 2025); macos-15-intel is GitHub's last Intel Mac runner (until Aug 2027).
          # Not cross-built on an ARM Mac because Homebrew's MoltenVK, bundled into the app, is the runner's own arch.
          - { arch: x64, runner: macos-15-intel }
    runs-on: ${{ matrix.runner }}
    timeout-minutes: 45
    steps:
      - uses: actions/checkout@v4
      - uses: actions/download-artifact@v4
        with:
          name: FrameHome-payload
          path: build/frame-home/payload
      - name: Tools and MoltenVK (Vulkan on Metal, bundled into the app)
        run: brew install ninja molten-vk
      - name: Build
        run: sh scripts/build-studio.sh macos-${{ matrix.arch }}
      - uses: actions/upload-artifact@v4
        with:
          name: FrameStudio-macos-${{ matrix.arch }}
          path: dist/FrameStudio-macos-${{ matrix.arch }}.zip

  frame-home:
    name: Build Frame Home payload
    runs-on: ubuntu-24.04-arm
    timeout-minutes: 45
    steps:
      - uses: actions/checkout@v4.2.2
      - name: Build payload and installer
        run: |
          sudo apt-get update
          sudo apt-get install -y cmake ninja-build gcc-13 g++-13 glslc zip
          sh scripts/build-frame-home.sh --ci
      - uses: actions/upload-artifact@v4
        with:
          name: FrameHome-payload
          path: build/frame-home/payload
      - uses: actions/upload-artifact@v4
        with:
          name: FrameHome-installer
          path: build/frame-home/FrameHome-installer.zip
          if-no-files-found: error
      - uses: actions/upload-artifact@v4
        with:
          name: FrameHome-build-info
          path: build/frame-home/build-info.txt
          if-no-files-found: error

  release:
    name: Publish
    # "latest" gets every build that finished (a failed or still-slow platform just isn't in it); a version release
    # needs them all. We don't wait on macOS: its runners can sit in GitHub's queue for hours, and since a push
    # cancels the previous run, waiting meant no run ever reached this job. Both Mac builds still upload and are
    # attached whenever they finish in time.
    if: ${{ !cancelled() && (startsWith(github.ref, 'refs/tags/v') || github.ref == 'refs/heads/main') }}
    needs: [linux, windows, frame-home]
    runs-on: ubuntu-24.04
    timeout-minutes: 20
    permissions:
      contents: write
      id-token: write
      attestations: write
    env:
      GH_TOKEN: ${{ github.token }}
      REPO: ${{ github.repository }}
    steps:
      - uses: actions/download-artifact@v4
        with:
          pattern: FrameStudio-*
          path: dist
          merge-multiple: true
      - uses: actions/download-artifact@v4
        with:
          name: FrameHome-payload
          path: ${{ runner.temp }}/frame-home-payload
      - uses: actions/download-artifact@v4
        with:
          name: FrameHome-installer
          path: dist
      # What Frame Studio (studio/updater.h) and the headset's Environments panel check for updates: this commit,
      # Frame Home's identity (a hash of the headset programs, the same one the panel works out for what's installed)
      # and the files in this release.
      - name: latest.json
        run: |
          home=$(cd "$RUNNER_TEMP/frame-home-payload" && sha256sum bin/frame-home bin/frame-switcher bin/fenv-tool layer/libframe_home_layer.so layer/env_ps.spv | cut -c1-64 | sha256sum | cut -c1-64)
          files=$(ls dist | python3 -c 'import json, sys; print(json.dumps([l.strip() for l in sys.stdin if l.strip()]))')
          printf '{"build": "%s", "home": "%s", "date": "%s", "files": %s}\n' "$GITHUB_SHA" "$home" "$(date -u +%Y-%m-%dT%H:%M:%SZ)" "$files" > dist/latest.json
          cat dist/latest.json
      - uses: actions/attest-build-provenance@v2
        with:
          subject-path: dist/FrameStudio-*
      - uses: actions/attest-build-provenance@v2
        with:
          subject-path: dist/FrameHome-installer.zip
      - name: Version release (tag v*)
        if: ${{ startsWith(github.ref, 'refs/tags/v') && !contains(needs.*.result, 'failure') }}
        run: gh release create "${{ github.ref_name }}" dist/* --repo "$REPO" --title "Frame Studio ${{ github.ref_name }}" --generate-notes
      - name: Latest build (push to main)
        if: github.ref == 'refs/heads/main'
        run: |
          gh release delete latest --repo "$REPO" --yes --cleanup-tag 2>/dev/null || true
          gh release create latest dist/* --repo "$REPO" --prerelease --target "${{ github.sha }}" \
            --title "Latest build (${GITHUB_SHA::7})" \
            --notes "Built automatically from ${{ github.sha }} on $(date -u '+%Y-%m-%d %H:%M UTC'). Replaced by every push to main."