name: Build Next

on:
  push:
    branches: [main]

permissions:
  contents: read

env:
  NIX_CONFIG: experimental-features = nix-command flakes

jobs:
  build:
    runs-on: ubuntu-26.04
    timeout-minutes: 60
    steps:
      - uses: actions/checkout@v7
      - uses: cachix/install-nix-action@13d8dd58da0234aa297dedd986986ccb8e7f3e24 # v31.11.1
      - uses: nix-community/cache-nix-action@7df957e333c1e5da7721f60227dbba6d06080569 # v7.0.2
        with:
          primary-key: nix-v2-${{ hashFiles('flake.lock', '**/*.nix') }}
          restore-prefixes-first-match: nix-v2-
          gc-max-store-size-linux: 6G
      - name: Build next builds
        run: nix develop --command gradle :app:assembleDebug :app:assembleNext --no-daemon
      - name: Collect next builds
        run: |
          cp app/build/outputs/apk/debug/app-debug.apk subtracks-next-debug.apk
          cp app/build/outputs/apk/next/app-next.apk subtracks-next.apk
      - name: Upload next builds
        uses: actions/upload-artifact@v7
        with:
          name: subtracks-next
          path: |
            subtracks-next-debug.apk
            subtracks-next.apk