name: nightly

# Upstream sync -> regenerate -> validate -> version -> publish -> commit back.
# Stops successfully when mattpocock/skills has not moved. Credentials only from secrets.
on:
  schedule:
    - cron: "30 3 * * *"
  workflow_dispatch:

jobs:
  sync:
    if: gitea.ref == 'refs/heads/main'
    runs-on: ubuntu-latest
    steps:
      - uses: actions/checkout@v4
      - uses: actions/setup-node@v4
        with:
          node-version: 24
      - run: npm ci

      - name: Sync upstream snapshot
        id: sync
        run: |
          node scripts/sync-upstream.ts
          if git diff --quiet -- upstream .opencode/state/upstream.json && git ls-files --error-unmatch upstream/UPSTREAM.json >/dev/null 2>&1 && [ -z "$(git status --porcelain -- upstream .opencode/state/upstream.json)" ]; then
            echo "changed=false" >> "$GITHUB_OUTPUT"
          else
            echo "changed=true" >> "$GITHUB_OUTPUT"
          fi

      - name: Stop when nothing changed
        if: steps.sync.outputs.changed == 'false'
        run: echo "upstream unchanged; nothing to do"

      - name: Regenerate OpenCode artifacts
        if: steps.sync.outputs.changed == 'true'
        run: node scripts/generate.ts

      - name: Format, typecheck, test, build
        if: steps.sync.outputs.changed == 'true'
        run: |
          npm run format
          npm run check
          npm test
          npm run build

      - name: Prepare changelog + version
        if: steps.sync.outputs.changed == 'true'
        run: node scripts/version.ts

      - name: Commit generated changes back
        if: steps.sync.outputs.changed == 'true'
        run: |
          SHA=$(node -p "require('./upstream/UPSTREAM.json').commit.slice(0,9)")
          git config user.name "gitea-actions[bot]"
          git config user.email "gitea-actions[bot]@noreply"
          git remote set-url origin "https://x-access-token:${{ secrets.PACKAGE_TOKEN }}@${GITEA_HOST#https://}"
          git add upstream skills agents manifest.json docs/skill-mapping.md CHANGELOG.md .opencode/state package-lock.json
          if git diff --cached --quiet; then
            echo "no generated changes to commit"
          else
            git commit -m "sync: update mattpocock skills to ${SHA} [skip ci]"
            git push origin main
          fi
        env:
          GITEA_HOST: ${{ gitea.server_url }}

      - name: Publish to Gitea npm registry, tag, link
        if: steps.sync.outputs.changed == 'true'
        run: |
          SHA=$(git rev-parse HEAD)
          SERVER_URL="$SERVER_URL" REPOSITORY="$REPOSITORY" SHA="$SHA" TOKEN="$TOKEN" node scripts/release.ts
        env:
          SERVER_URL: ${{ gitea.server_url }}
          REPOSITORY: ${{ gitea.repository }}
          TOKEN: ${{ secrets.PACKAGE_TOKEN }}