name: "Build Flatpaks"

on:
    push:
        branches: ["main"]
        tags: ["*"]
    workflow_dispatch:

jobs:
    build-flatpak:
        strategy:
            fail-fast: false
            matrix:
                include:
                    - arch: x86_64
                      runner: ubuntu-latest
                    - arch: aarch64
                      runner: ubuntu-24.04-arm
        runs-on: ${{ matrix.runner }}

        steps:
            - name: Checkout repository
              uses: actions/checkout@v6

            - name: Lix GHA Installer Action
              uses: samueldr/lix-gha-installer-action@v2026-02-22
              with:
                  extra_nix_config: experimental-features = nix-command flakes flake-self-attrs

            - name: Build app
              run: nix build .#flatpak

            - name: Upload installer artifact
              uses: actions/upload-artifact@v6
              with:
                  name: flatpak-${{ matrix.arch }}
                  path: result/nexus.federated.nexus.flatpak

    publish:
        needs: build-flatpak
        if: github.ref == 'refs/heads/main'
        runs-on: ubuntu-latest
        permissions:
            pages: write
            id-token: write
        environment:
            name: github-pages
            url: ${{ steps.deployment.outputs.page_url }}
        steps:
            - name: Install flatpak tooling
              run: sudo apt-get update && sudo apt-get install -y flatpak ostree

            - name: Download bundles
              uses: actions/download-artifact@v7
              with:
                  pattern: flatpak-*
                  path: bundles

            - name: Build OSTree repo
              run: |
                  ostree init --repo=repo --mode=archive-z2
                  for bundle in bundles/*/nexus.federated.nexus.flatpak; do
                    flatpak build-import-bundle repo "$bundle"
                  done
                  flatpak build-update-repo --prune repo

            - uses: actions/upload-pages-artifact@v4
              with:
                  path: repo

            - name: Deploy to Pages
              id: deployment
              uses: actions/deploy-pages@v4