name: Deploy visualizer to GitHub Pages

on:
  push:
    branches: [data]
  workflow_dispatch:

permissions:
  contents: read
  pages: write
  id-token: write

concurrency:
  group: pages
  cancel-in-progress: false

jobs:
  deploy:
    runs-on: ubuntu-latest
    environment:
      name: github-pages
      url: ${{ steps.deployment.outputs.page_url }}

    steps:
      - name: Checkout data branch
        uses: actions/checkout@v4
        with:
          ref: data
          fetch-depth: 0

      - name: Configure Pages
        uses: actions/configure-pages@v4

      # Make sku_links.json available to the static site without committing a second copy.
      - name: Stage sku_links.json into site artifact
        shell: bash
        run: |
          set -euo pipefail
          mkdir -p viz/data
          if [[ -f data/sku_links.json ]]; then
            cp -f data/sku_links.json viz/data/sku_links.json
          else
            # keep site functional even if file is missing
            cat > viz/data/sku_links.json <<'EOF'
          {
            "generatedAt": "",
            "links": [],
            "ignores": []
          }
          EOF
          fi

      - name: Upload site artifact
        uses: actions/upload-pages-artifact@v3
        with:
          path: viz

      - name: Deploy to GitHub Pages
        id: deployment
        uses: actions/deploy-pages@v4

      - name: Build email alert (HTML)
        id: alert
        shell: bash
        run: |
          set -euo pipefail
          node tools/build_email_alert.js
          echo "should_send=$(cat reports/alert_should_send.txt | tr -d '\r\n')" >> "$GITHUB_OUTPUT"

      - name: Debug alert outputs
        shell: bash
        run: |
          set -euo pipefail
          echo "alert_should_send=$(cat reports/alert_should_send.txt || true)"
          echo "subject=$(cat reports/alert_subject.txt || true)"

      - name: Send email alert
        if: steps.alert.outputs.should_send == '1'
        uses: dawidd6/action-send-mail@v7
        with:
          server_address: smtp.gmail.com
          server_port: 465
          secure: true
          username: ${{ secrets.MAIL_USERNAME }}
          password: ${{ secrets.MAIL_PASSWORD }}
          subject: file://reports/alert_subject.txt
          to: brennan@codexwilkes.com, nathan.wilkes@codexwilkes.com
          from: Spirit Tracker <${{ secrets.MAIL_USERNAME }}>
          html_body: file://reports/alert.html