name: Fabrication document

# With a docs/input.md (typecad-docgen front matter, as in PowerModule):
# builds the fabrication document of the first board and pushes it to the
# docu branch, so main stays free of generated files. Adapted from
# LVSolarBuck and PowerModule.
on:
  push:
    branches: [main]
    paths:
      - 'docs/input.md'
      - 'hardware/**'
      - '.gitea/workflows/docgen.yml'

jobs:
  docgen:
    runs-on: kicad10_auto
    steps:
      - uses: actions/checkout@v4

      - name: Inputs
        id: inputs
        run: |
          pcb=$(find hardware -mindepth 2 -maxdepth 2 -name '*.kicad_pcb' | sort | head -1)
          if [ -f docs/input.md ] && [ -n "$pcb" ]; then
            echo "pcb=$pcb" >> "$GITHUB_OUTPUT"
          else
            echo "No docs/input.md or no board yet: nothing to build."
          fi

      - name: Build
        if: steps.inputs.outputs.pcb != ''
        run: |
          mkdir -p output-docs
          typecad-docgen docs/input.md "${{ steps.inputs.outputs.pcb }}" -o output-docs/index.html

      - name: Push to the docu branch
        if: steps.inputs.outputs.pcb != ''
        env:
          GITEA_TOKEN: ${{ secrets.GITEA_TOKEN }}
        run: |
          git config --global user.email "${{ gitea.actor }}@noreply.localhost"
          git config --global user.name "${{ gitea.actor }}"
          REPO_URL=$(git config --get remote.origin.url)
          AUTHED_URL=${REPO_URL/https:\/\//https:\/\/${GITEA_TOKEN}@}
          git clone --depth 1 --branch docu "$AUTHED_URL" docu || git clone --depth 1 "$AUTHED_URL" docu
          cd docu
          git checkout -B docu
          git rm -rq . || true
          cp -r ../output-docs/* .
          git add -A
          if git diff --cached --quiet; then echo "No changes"; exit 0; fi
          git commit -m "chore: fabrication document"
          git push --force "$AUTHED_URL" docu