name: build-main

on:
  # Manual only. Dispatch against main: build, run the offline test suite,
  # publish to the release Attic cache and live-update manifest.
  workflow_dispatch:

jobs:
  nix-build:
    runs-on: build-server
    steps:
      # actions/checkout@v4 is unreliable on host-mode runners (its files are
      # copied into the workspace instead of the repo), so clone explicitly.
      # A full clone (no --depth) is required so `git describe --tags` resolves
      # the real nearest tag instead of falling back to a hash.
      - name: Checkout
        run: |
          rm -rf ./* ./.[!.]* 2>/dev/null || true
          git config --global http.extraheader "Authorization: token ${{ github.token }}"
          git clone --branch "${{ gitea.ref_name }}" \
            "${{ gitea.server_url }}/${{ gitea.repository }}.git" .
          test -f flake.nix
          git log --oneline -1

      - name: Inspect workspace
        run: |
          pwd
          ls -la
          git rev-parse --show-toplevel 2>&1 || true
          git remote -v 2>&1 || true
          git describe --tags --always 2>&1 || true
          test -f flake.nix && echo "flake.nix present" || echo "NO flake.nix"

      # Release builds report the current git tag.
      # Persisted via GITHUB_ENV so the impure nix eval below reads it via
      # builtins.getEnv.
      - name: Compute version
        run: |
          echo "APP_VERSION=$(git describe --tags --always)" >> "$GITHUB_ENV"

      # checks is keyed per-system (checks.<system>.default); nix build's
      # #attr shorthand can't resolve it, so resolve the current system inline.
      # --impure lets the flake read APP_VERSION via builtins.getEnv
      # (pure evals always get the package defaults).
      - name: Build package
        run: |
          nix build -L ".#packages.$(nix eval --impure --raw --expr 'builtins.currentSystem').default" \
            --impure --out-link result-pkg
      # The offline test suite runs in the check derivation's checkPhase.
      # This is a separate build/output from the package itself.
      - name: Build + offline test suite
        run: |
          nix build -L ".#checks.$(nix eval --impure --raw --expr 'builtins.currentSystem').default" \
            --impure --out-link result-checks

      - name: Live portal tests
        env:
          RWT_LIVE_ACCOUNT_EMAIL: ${{ secrets.RWT_LIVE_ACCOUNT_EMAIL }}
          RWT_LIVE_LICENSE_EMAIL: ${{ secrets.RWT_LIVE_LICENSE_EMAIL }}
          RWT_LIVE_LICENSE_KEY: ${{ secrets.RWT_LIVE_LICENSE_KEY }}
        run: |
          nix develop --command bash -c '
            cmake -S . -B build -G Ninja -DCMAKE_BUILD_TYPE=Debug
            cmake --build build --target test_api_client test_license_service
            ./build/test_api_client
            ./build/test_license_service
          '

      # Release closure (the actual package, not the check output) lands in the
      # release cache.
      - name: Push to Attic release cache
        env:
          ATTIC_TOKEN: ${{ secrets.ATTIC_TOKEN_PROD }}
        run: |
          attic login radiantwave https://attic.radiantwavetech.com "$ATTIC_TOKEN"
          attic push radiantwave:radiantwave ./result-pkg

      # attic push can exit 0 while storing a truncated NAR (dropped
      # connection, disk full on the attic host), which kiosks then fail to
      # fetch. Re-fetch the whole closure into a throwaway store to verify
      # every NAR; if the upload is incomplete, `nix-store -r` errors and the
      # manifest below is never published.
      #
      # NOTE: Attic's upstream-cache filter (upstream_cache_key_names =
      # cache.nixos.org-1) intentionally skips re-uploading nixpkgs deps
      # (e.g. sqlite) that are already signed by cache.nixos.org, so this must
      # fetch from Attic AND cache.nixos.org together, exactly like the kiosk
      # updater does. Attic stays the primary source (it's listed first, so a
      # truncated RadiantWave NAR still fails here).
      - name: Verify Attic upload
        run: |
          nix-store -r "$(readlink -f ./result-pkg)" \
            --store "$PWD/.attic-verify-store" \
            --option require-sigs false \
            --option substituters "https://attic.radiantwavetech.com/radiantwave https://cache.nixos.org"
          rm -rf "$PWD/.attic-verify-store"

      # Publish the manifest production kiosks poll for live app updates.
      # `storePath` must match exactly the closure pushed to the release Attic
      # cache above (readlink resolves the result-pkg out-link symlink to its
      # real /nix/store path), so a kiosk can `nix copy --from` it without ever
      # building from source. Upload mirrors the ISO scp pattern to the
      # fileserver via the build-server's `radiantwave-infra` SSH alias.
      - name: Publish manifest
        run: |
          STOREPATH=$(readlink -f ./result-pkg)
          printf '{"version":"%s","storePath":"%s"}\n' "${{ env.APP_VERSION }}" "$STOREPATH" > manifest.json
          cat manifest.json
          scp manifest.json \
            radiantwave-infra:/mnt/infrastructure_data/files/radiantwave/manifest.json