name: github-metrics

on:
  schedule:
    - cron: '15 0 * * *'
  workflow_dispatch:

permissions:
  contents: read

jobs:
  metrics:
    name: Generate issue and PR activity SVG
    if: github.repository == 'nexu-io/open-design'
    runs-on: ubuntu-latest
    steps:
      - name: Checkout
        uses: actions/checkout@v6.0.2

      - name: Generate OpenDesign bot token
        id: open-design-bot-token
        uses: actions/create-github-app-token@v3.2.0
        with:
          client-id: ${{ secrets.BOT_APP_CLIENT_ID }}
          private-key: ${{ secrets.BOT_APP_PRIVATE_KEY }}
          owner: nexu-io
          repositories: open-design
          permission-administration: read
          permission-contents: read
          permission-issues: read
          permission-pull-requests: read

      - name: Generate issue and PR activity
        uses: lowlighter/metrics@latest
        with:
          # Render into the action workspace only. The upload step publishes the
          # SVG to repository-assets R2 so generated metrics never write back to
          # the git history.
          filename: github-metrics.svg

          # Auth: use the OpenDesign GitHub App for follow-up metrics
          # that need private repository API access, but do not grant write
          # permissions because this workflow publishes to R2 instead of git.
          token: ${{ steps.open-design-bot-token.outputs.token }}
          output_action: none

          # Use the repository template (per-repo metrics, not user metrics).
          # Organization-owned repositories must be targeted explicitly, otherwise
          # lowlighter/metrics infers the token owner and treats the target as an org.
          template: repository
          base: ''
          user: nexu-io
          repo: open-design

          # Keep this README image focused on the maintenance signal that is not
          # covered elsewhere: issue and PR follow-up status. Contributors and
          # star history have dedicated README sections, and languages are
          # already summarized by GitHub.
          plugin_followup: yes
          plugin_followup_sections: pr, issue

          config_timezone: Asia/Shanghai
          config_display: large

      - name: Normalize activity SVG layout
        shell: bash
        run: |
          set -euo pipefail
          raw_svg="/metrics_renders/github-metrics.svg"
          svg="$RUNNER_TEMP/github-metrics.svg"
          if [ ! -s "$raw_svg" ]; then
            echo "Expected metrics SVG not found at $raw_svg" >&2
            exit 1
          fi
          cp "$raw_svg" "$svg"
          SVG_PATH="$svg" node <<'NODE'
          const fs = require('node:fs');
          const svg = process.env.SVG_PATH;
          if (!svg) throw new Error('SVG_PATH is required');
          let content = fs.readFileSync(svg, 'utf8');
          content = content.replace(
            /<svg xmlns="http:\/\/www\.w3\.org\/2000\/svg" width="[^"]+" height="[^"]+"([^>]*)>/,
            '<svg xmlns="http://www.w3.org/2000/svg" width="720" height="110" viewBox="0 0 720 110"$1>'
          );
          content = content.replace(
            '<span class="followup-title">Overall issues and pull requests status</span>',
            '<span class="followup-title">Issue and pull request status</span>'
          );
          const layoutCss = [
            'foreignObject>div{width:100%;display:flex;flex-direction:column;align-items:center;transform:scale(1.1);transform-origin:top center}',
            '.field{justify-content:center}',
            '.followup-title{text-align:center}',
            'svg.large .largeable{width:520px}',
            'svg.large .chart.largeable{width:504px}'
          ].join('');
          content = content.replace('</style>', `${layoutCss}</style>`);
          fs.writeFileSync(svg, content);
          NODE

      - name: Publish metrics SVG to repository assets
        env:
          AWS_ACCESS_KEY_ID: ${{ secrets.CLOUDFLARE_R2_REPOSITORY_ASSETS_AK }}
          AWS_SECRET_ACCESS_KEY: ${{ secrets.CLOUDFLARE_R2_REPOSITORY_ASSETS_SK }}
          AWS_DEFAULT_REGION: auto
          AWS_EC2_METADATA_DISABLED: "true"
          CLOUDFLARE_R2_REPOSITORY_ASSETS_BUCKET: ${{ secrets.CLOUDFLARE_R2_REPOSITORY_ASSETS_BUCKET }}
          CLOUDFLARE_R2_REPOSITORY_ASSETS_PUBLIC_ORIGIN: ${{ vars.CLOUDFLARE_R2_REPOSITORY_ASSETS_PUBLIC_ORIGIN }}
          CLOUDFLARE_R2_REPOSITORY_ASSETS_URL: ${{ secrets.CLOUDFLARE_R2_REPOSITORY_ASSETS_URL }}
        shell: bash
        run: |
          set -euo pipefail
          svg="$RUNNER_TEMP/github-metrics.svg"
          if [ ! -s "$svg" ]; then
            echo "Expected metrics SVG not found at $svg" >&2
            exit 1
          fi
          key="resources/images/github-metrics.svg"
          node --experimental-strip-types .github/scripts/r2.ts put-object \
            --endpoint "$CLOUDFLARE_R2_REPOSITORY_ASSETS_URL" \
            --bucket "$CLOUDFLARE_R2_REPOSITORY_ASSETS_BUCKET" \
            --key "$key" \
            --file "$svg" \
            --content-type "image/svg+xml" \
            --cache-control "public, max-age=300" \
            --public-origin "$CLOUDFLARE_R2_REPOSITORY_ASSETS_PUBLIC_ORIGIN"