name: Release

# Builds the headset app on an ARM64 runner (Ubuntu 24.04: glibc 2.39, as SteamOS on the Frame) and publishes
# frametanium-steam-frame-arm64.tar.gz, which Frametanium installs to update itself (install.sh inside).
# Push a tag v* to release.
on:
  push:
    tags: ["v*"]
  workflow_dispatch:

permissions:
  contents: write

env:
  SDL2_VERSION: 2.30.12

jobs:
  release:
    runs-on: ubuntu-24.04-arm
    timeout-minutes: 20
    steps:
      - uses: actions/checkout@v4

      - name: Install the toolchain and SDL2's dependencies
        run: |
          sudo apt-get update -q
          sudo apt-get install -y -q clang lld ninja-build cmake \
            libx11-dev libxext-dev libxrandr-dev libxcursor-dev libxfixes-dev libxi-dev libxss-dev \
            libxkbcommon-dev libwayland-dev wayland-protocols libdecor-0-dev libdrm-dev libgbm-dev libegl-dev libgles-dev \
            libpulse-dev libasound2-dev libpipewire-0.3-dev libudev-dev libdbus-1-dev

      # A source build loads X11, Wayland, audio... at run time instead of linking them.
      - name: Build SDL2
        run: |
          curl -fsSL "https://github.com/libsdl-org/SDL/releases/download/release-$SDL2_VERSION/SDL2-$SDL2_VERSION.tar.gz" | tar -xz -C "$RUNNER_TEMP"
          cmake -S "$RUNNER_TEMP/SDL2-$SDL2_VERSION" -B "$RUNNER_TEMP/sdl2-build" -G Ninja -DCMAKE_BUILD_TYPE=Release \
            -DCMAKE_C_COMPILER=clang -DCMAKE_INSTALL_PREFIX="$RUNNER_TEMP/sdl2" -DSDL_SHARED=ON -DSDL_STATIC=OFF -DSDL_TEST=OFF
          ninja -C "$RUNNER_TEMP/sdl2-build" install

      - name: Build the headset app
        run: |
          mkdir -p dist/app/lib
          clang -O2 -Wall -march=armv8.2-a -fuse-ld=lld -I"$RUNNER_TEMP/sdl2/include/SDL2" -D_REENTRANT app/app.c \
            -L"$RUNNER_TEMP/sdl2/lib" -lSDL2-2.0 -Wl,-rpath,'$ORIGIN/lib' -o dist/app/frametanium
          strip dist/app/frametanium
          cp -L "$RUNNER_TEMP/sdl2/lib/libSDL2-2.0.so.0" dist/app/lib/
          sed -n '/^cat > "$OUT\/run.sh" <<.RUN.$/,/^RUN$/p' app/build-arm64.sh | sed '1d;$d' > dist/app/run.sh
          chmod +x dist/app/run.sh
          grep -q 'exec ./frametanium' dist/app/run.sh

      - name: Package
        run: |
          tools/bundle.sh dist/app dist/bundle
          tar -C dist/bundle -czf frametanium-steam-frame-arm64.tar.gz .
          tar -tzf frametanium-steam-frame-arm64.tar.gz | grep -v '^./art/'

      - name: Publish
        if: startsWith(github.ref, 'refs/tags/v')
        env:
          GH_TOKEN: ${{ github.token }}
        run: |
          gh release create "$GITHUB_REF_NAME" frametanium-steam-frame-arm64.tar.gz --target "$GITHUB_SHA" \
            --title "Frametanium $GITHUB_REF_NAME" --notes "Update from Frametanium itself (its own row in the list), or unpack and run install.sh on the Frame."