name: Release packages

on:
  pull_request:
    types: [opened, synchronize, reopened, labeled]
  push:
    tags: ['v*']
  workflow_dispatch:

permissions:
  contents: read

env:
  CARGO_BUILD_JOBS: '2'
  CARGO_INCREMENTAL: '0'
  CARGO_PROFILE_RELEASE_DEBUG: '0'

concurrency:
  group: release-${{ github.ref }}
  cancel-in-progress: false

jobs:
  checks:
    if: github.event_name != 'pull_request' || contains(github.event.pull_request.labels.*.name, 'release')
    uses: ./.github/workflows/release-checks.yml

  source:
    if: github.event_name != 'pull_request' || contains(github.event.pull_request.labels.*.name, 'release')
    runs-on: ubuntu-24.04
    outputs:
      version: ${{ steps.version.outputs.version }}
    steps:
      - uses: actions/checkout@v6
      - name: Read release version
        id: version
        env:
          RELEASE_TAG: ${{ github.ref_type == 'tag' && github.ref_name || '' }}
        run: |
          python3 - <<'PY'
          import importlib.util, os
          spec = importlib.util.spec_from_file_location('package', 'scripts/package.py')
          package = importlib.util.module_from_spec(spec)
          spec.loader.exec_module(package)
          version = package.version()
          package.check_tag(os.environ['RELEASE_TAG'], version)
          with open(os.environ['GITHUB_OUTPUT'], 'a') as output:
              print(f'version={version}', file=output)
          PY
      - name: Install pinned Rust toolchain
        run: rustup show
      - name: Package offline sources and recipes
        env:
          RELEASE_TAG: ${{ github.ref_type == 'tag' && github.ref_name || '' }}
        run: |
          python3 -m unittest discover -s scripts/tests -p test_package.py
          python3 scripts/package.py source --tag "$RELEASE_TAG"
      - uses: actions/upload-artifact@v7
        with:
          name: release-source
          path: target/dist/*
          if-no-files-found: error
          compression-level: 0

  fedora:
    needs: source
    runs-on: ubuntu-24.04
    container:
      image: fedora:44
      options: --init
    steps:
      - name: Install RPM tooling
        run: dnf install -y rpm-build dnf5-plugins git findutils tar gzip
      - uses: actions/download-artifact@v8
        with:
          name: release-source
          path: dist
      - name: Build and test Fedora package
        run: |
          dnf builddep -y dist/ferese.spec
          mkdir -p /tmp/rpmbuild/SOURCES
          cp dist/ferese-*.tar.gz /tmp/rpmbuild/SOURCES/
          rpmbuild -ba --define '_topdir /tmp/rpmbuild' dist/ferese.spec
          mkdir -p artifacts
          find /tmp/rpmbuild/RPMS /tmp/rpmbuild/SRPMS -name '*.rpm' -exec cp '{}' artifacts/ \;
      - uses: actions/upload-artifact@v7
        with:
          name: release-fedora
          path: artifacts/*.rpm
          if-no-files-found: error
          compression-level: 0

  arch:
    needs: source
    runs-on: ubuntu-24.04
    container:
      image: archlinux:base-devel
      options: --init
    steps:
      - name: Prepare Arch build user and dependencies
        run: |
          pacman -Syu --noconfirm --needed rust cargo cmake clang pkgconf python git desktop-file-utils \
            wayland libxkbcommon libinput systemd seatd mesa vulkan-swrast libdrm fontconfig freetype2 expat dbus \
            pam polkit foot pipewire wireplumber libpipewire gstreamer xdg-desktop-portal xdg-desktop-portal-gtk xorg-xauth
          useradd --create-home builder
      - uses: actions/download-artifact@v8
        with:
          name: release-source
          path: dist
      - name: Build and test Arch package
        run: |
          mkdir -p /home/builder/package
          cp dist/PKGBUILD dist/ferese-*.tar.gz /home/builder/package/
          chown -R builder:builder /home/builder/package
          runuser -u builder -- bash -c 'cd /home/builder/package && makepkg --cleanbuild --noconfirm'
          mkdir -p artifacts
          cp /home/builder/package/*.pkg.tar.zst artifacts/
          runuser -u builder -- bash -c 'cd /home/builder/package && makepkg --printsrcinfo' > artifacts/ferese.SRCINFO
      - uses: actions/upload-artifact@v7
        with:
          name: release-arch
          path: artifacts/*
          if-no-files-found: error
          compression-level: 0

  publish:
    if: github.event_name == 'push' && github.ref_type == 'tag'
    needs: [source, checks, fedora, arch]
    runs-on: ubuntu-24.04
    permissions:
      contents: write
    steps:
      - uses: actions/download-artifact@v8
        with:
          pattern: release-*
          merge-multiple: true
          path: artifacts
      - name: Prepare draft release
        uses: actions/github-script@v8
        with:
          script: |
            const tag = context.ref.slice('refs/tags/'.length);
            const repo = context.repo;
            const commit = await github.rest.repos.getCommit({...repo, ref: tag});
            if (commit.data.sha !== context.sha) {
              throw new Error('Release tag moved after validation');
            }
            let release;
            try {
              release = (await github.rest.repos.getReleaseByTag({...repo, tag})).data;
            } catch (error) {
              if (error.status !== 404) throw error;
            }
            if (release && !release.draft) {
              throw new Error(`Release ${tag} is already published`);
            }
            if (!release) {
              await github.rest.repos.createRelease({
                ...repo, tag_name: tag, name: tag, draft: true,
                generate_release_notes: true, prerelease: tag.includes('-')
              });
            }
      - name: Upload packages and publish completed release
        env:
          GH_TOKEN: ${{ github.token }}
          GH_REPO: ${{ github.repository }}
          RELEASE_TAG: ${{ github.ref_name }}
        run: |
          cd artifacts
          rm SHA256SUMS
          sha256sum * > SHA256SUMS
          gh release upload "$RELEASE_TAG" ./* --clobber
          test "$(gh api "repos/$GH_REPO/commits/$RELEASE_TAG" --jq .sha)" = "$GITHUB_SHA"
          gh release edit "$RELEASE_TAG" --draft=false