# Every commit that lands on `main` publishes a prerelease of every publishable
# package to the Gitea npm registry under the `main` dist-tag:
#
#   pnpm add @bitsquare/nopy@main
#
# The verification gate runs here rather than in ci.yml so a snapshot can never
# be published from a red `main`. Versions are derived, never committed —
# releases to npmjs are cut by hand via a tag (see release.yml).

name: Publish snapshot

on:
  push:
    branches:
      - main

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

jobs:
  snapshot:
    runs-on: ubuntu-latest

    env:
      # e.g. https://gitea.example.com/api/packages/BitSquare/npm/
      REGISTRY: ${{ github.server_url }}/api/packages/${{ github.repository_owner }}/npm/
      # GITEA_TOKEN is injected automatically but the package registry rejects
      # it — it is a repo-scoped task token. MYGITEA_NPM_TOKEN must be a PAT with
      # `write:package`; the fallback only survives here for other instances.
      REGISTRY_TOKEN: ${{ secrets.MYGITEA_NPM_TOKEN || secrets.GITEA_TOKEN }}
      NPMRC: ${{ github.workspace }}/.npmrc-gitea

    steps:
      - name: Check out
        uses: actions/checkout@v4

      - name: Drop the repo's Gitea scope mapping
        # See the same step in release.yml. This job only ever targets Gitea, so
        # the committed file happens to agree with it — but it agrees by
        # accident, and a project-level `@bitsquare:registry` silently outranks
        # the userconfig written below. Removing it keeps the registry a
        # property of the step rather than of the checkout.
        run: rm -f .npmrc

      - name: Set up pnpm
        # Version comes from `packageManager` in the root package.json.
        uses: pnpm/action-setup@v4

      - name: Set up Node
        uses: actions/setup-node@v4
        with:
          node-version-file: .nvmrc

      - name: Locate the pnpm store
        id: pnpm-store
        run: echo "path=$(pnpm store path --silent)" >> "$GITHUB_OUTPUT"

      - name: Restore the pnpm store
        continue-on-error: true
        uses: actions/cache@v4
        with:
          path: ${{ steps.pnpm-store.outputs.path }}
          key: pnpm-${{ runner.os }}-${{ hashFiles('pnpm-lock.yaml') }}
          restore-keys: pnpm-${{ runner.os }}-

      - name: Install
        run: pnpm install --frozen-lockfile

      - name: Lint
        run: pnpm run lint:ci

      - name: Typecheck
        run: pnpm run typecheck

      - name: Test with coverage
        run: pnpm run test:coverage

      - name: Summarise coverage
        # Reporting only — the gate is the step above.
        if: always()
        continue-on-error: true
        run: pnpm run coverage:summary

      - name: Build
        # Explicit, so the publish step can skip lifecycle scripts entirely.
        run: pnpm run build

      - name: Verify the packed manifests
        # Packages link to each other with `workspace:*`, which npm cannot
        # install. Proves on the tarball that pack rewrote it.
        run: node scripts/verify-pack.mjs

      - name: Authenticate against the Gitea registry
        run: |
          set -euo pipefail
          if [ -z "${REGISTRY_TOKEN}" ]; then
            echo "::error::No registry token. Add a MYGITEA_NPM_TOKEN secret with write:package scope."
            exit 1
          fi
          install -m 600 /dev/null "$NPMRC"
          {
            printf '@bitsquare:registry=%s\n' "$REGISTRY"
            printf '//%s:_authToken=%s\n' "${REGISTRY#*://}" "$REGISTRY_TOKEN"
          } >> "$NPMRC"

      - name: Publish snapshots
        run: |
          set -euo pipefail
          export npm_config_userconfig="$NPMRC"
          : "${GITHUB_STEP_SUMMARY:=/dev/null}"
          short_sha=$(git rev-parse --short=7 HEAD)
          # Dependencies first, so the registry never briefly holds a package
          # whose dependency has not landed yet.
          dirs=$(node scripts/publish-order.mjs)

          # Pass 1: stamp every manifest before anything is packed. `pnpm
          # publish` substitutes `workspace:*` with the version the linked
          # package declares at pack time, so nopy-cube has to be carrying its
          # snapshot version by the time nopy is packed.
          for dir in $dirs; do
            base=$(node -p "require('./${dir}/package.json').version")
            # `g` prefix keeps the identifier a valid semver one even when the
            # abbreviated sha happens to be all digits.
            version="${base}-main.${{ github.run_number }}.g${short_sha}"
            # `buildInfo.commit` is what `nopy --version` annotates itself with.
            # An unknown top-level key is ignored by npm and package.json is
            # always in the tarball, so it ships without any `files` change.
            (cd "$dir" && npm pkg set "version=${version}" "buildInfo.commit=${short_sha}")
          done

          # Pass 2: publish.
          for dir in $dirs; do
            name=$(node -p "require('./${dir}/package.json').name")
            version=$(node -p "require('./${dir}/package.json').version")

            echo "::group::${name}@${version}"
            # Scoped, not `--registry`: for a scoped package npm resolves
            # `@scope:registry` first, so a bare flag loses to any project
            # .npmrc that sets the scoped key.
            if npm view "${name}@${version}" version --@bitsquare:registry="$REGISTRY" >/dev/null 2>&1; then
              echo "Already published — skipping (this is a re-run of the same workflow)."
            else
              # pnpm, not npm: npm ships `workspace:*` verbatim and the install
              # then fails with EUNSUPPORTEDPROTOCOL. --no-git-checks because
              # stamping the versions above left the tree dirty.
              (cd "$dir" && pnpm publish --ignore-scripts --no-git-checks --tag main --@bitsquare:registry="$REGISTRY")
            fi
            echo "::endgroup::"

            echo "- \`pnpm add ${name}@${version}\`" >> "$GITHUB_STEP_SUMMARY"
          done

      - name: Remove the registry credentials
        if: always()
        run: rm -f "$NPMRC"