name: Reusable Documentation Workflow

on:
  workflow_call:
    inputs:
      mode:
        description: 'Build mode: "prod" or "dev"'
        required: false
        type: string
        default: "prod"
      version:
        description: 'Version string for documentation (use "auto" for automatic detection)'
        required: false
        type: string
        default: "auto"
      just-check:
        description: "Just create a quick build to check for errors"
        required: false
        type: boolean
        default: false
      url-prefix:
        description: 'URL prefix for docs (e.g., "/" for prod, "/dev/" for dev)'
        required: false
        type: string
        default: "/"
      run-pagespeed:
        description: "Run PageSpeed Insights after deploy"
        required: false
        type: boolean
        default: false
      pagespeed-url:
        description: "URL to test with PageSpeed"
        required: false
        type: string
        default: "https://docs.openmqttgateway.com/"
      destination-dir:
        description: "GitHub Pages destination directory"
        required: false
        type: string
        default: "."
      python-version:
        description: "Python version to use"
        required: false
        type: string
        default: "3.13"
      pio-version:
        description: "PlatformIO version to use"
        required: false
        type: string
        default: "v6.1.18"
    secrets:
      github-token:
        description: "GitHub token for deploying to GitHub Pages"
        required: false
      pagespeed-apikey:
        description: "API key for PageSpeed Insights"
        required: false


jobs:
  documentation:
    runs-on: ubuntu-latest
    name: Create and deploy documentation
    steps:
      - uses: actions/checkout@v4
        with:
          fetch-depth: 0 # Fetch all history for git tags

      - name: Set up Python
        uses: actions/setup-python@v5
        with:
          python-version: ${{ inputs.python-version }}

      - name: Install uv
        uses: astral-sh/setup-uv@v6
        with:
          version: "latest"
          enable-cache: false

      - name: Install PlatformIO dependencies
        run: |
          uv pip install --system -U "https://github.com/pioarduino/platformio-core/archive/refs/tags/${{ inputs.pio-version }}.zip"

      - name: Determine version
        id: version
        run: |
          VERSION="${{ inputs.version }}"
          MODE="${{ inputs.mode }}"

          # If version is 'auto', determine it based on mode
          if [ "$VERSION" = "auto" ]; then
            if [ "$MODE" = "dev" ]; then
              # Dev mode: always use short SHA
              VERSION="$(git rev-parse --short HEAD)"
              echo "Dev mode - using SHA: $VERSION"
            else
              # Prod mode: try to get git tag
              if GIT_TAG=$(git describe --tags --exact-match 2>/dev/null); then
                VERSION="$GIT_TAG"
                echo "Using exact git tag: $VERSION"
              elif LATEST_TAG=$(git describe --tags --abbrev=0 2>/dev/null); then
                VERSION="$LATEST_TAG"
                echo "Using latest tag: $VERSION"
              else
                VERSION="v0.0.0-unknown"
                echo "Warning: No tag found, using: $VERSION"
              fi
            fi
          fi

          echo "version=$VERSION" >> $GITHUB_OUTPUT
          echo "Final version: $VERSION"

      - name: Download all firmware artifacts
        if: ${{ inputs.mode == 'dev' }}
        uses: actions/download-artifact@v4
        with:
          pattern: "*"
          path: generated/artifacts
          merge-multiple: true

      - name: Build documentation site
        run: |
          ./scripts/ci.sh site \
            --clean \
            --mode ${{ inputs.mode }} \
            --version ${{ steps.version.outputs.version }} \
            --url-prefix ${{ inputs.url-prefix }}

      - name: Deploy to GitHub Pages
        uses: peaceiris/actions-gh-pages@v3
        if: ${{ inputs.just-check == false }}
        with:
          github_token: ${{ secrets.github-token }}
          publish_dir: ./generated/site
          destination_dir: ${{ inputs.destination-dir }}
          cname: docs.openmqttgateway.com

      - name: Run PageSpeed Insights
        if: ${{ inputs.just-check == false && inputs.run-pagespeed == true }}
        uses: jakepartusch/psi-action@v1.3
        id: psi
        with:
          url: ${{ inputs.pagespeed-url }}
          threshold: 60
          key: ${{ secrets.pagespeed-apikey }}