name: Update Docker Downloads Badge

on:
  schedule:
    - cron: '17 4 * * 1'
  workflow_dispatch:

permissions:
  contents: write

concurrency:
  group: docker-downloads-badge
  cancel-in-progress: false

jobs:
  update:
    if: github.repository == 'alam00000/bentopdf'
    runs-on: ubuntu-latest
    steps:
      - name: Sum GHCR download counts
        id: counts
        run: |
          set -euo pipefail
          total=0
          for pkg in bentopdf bentopdf-simple; do
            raw=$(curl -sf --retry 3 --retry-delay 5 --max-time 30 \
              "https://ghcr-badge.elias.eu.org/api/alam00000/bentopdf/$pkg" \
              | jq -e -r '.downloadCountRaw')
            case "$raw" in ''|*[!0-9]*) echo "::error::invalid count for $pkg: $raw"; exit 1 ;; esac
            echo "$pkg: $raw"
            total=$((total + raw))
          done
          if [ "$total" -le 0 ]; then echo "::error::total is zero"; exit 1; fi
          message=$(awk -v n="$total" 'BEGIN{
            if (n >= 1000000) printf "%.1fM", n/1000000;
            else if (n >= 1000) printf "%.1fk", n/1000;
            else printf "%d", n
          }')
          echo "total=$total" >> "$GITHUB_OUTPUT"
          echo "message=$message" >> "$GITHUB_OUTPUT"
          echo "combined: $total -> $message"

      - name: Publish badge JSON to badges branch
        env:
          GH_TOKEN: ${{ secrets.GITHUB_TOKEN }}
          MESSAGE: ${{ steps.counts.outputs.message }}
        run: |
          set -euo pipefail
          mkdir badges && cd badges
          jq -n --arg message "$MESSAGE" \
            '{schemaVersion: 1, label: "Docker Downloads", message: $message, color: "blue", namedLogo: "docker"}' \
            > docker-downloads.json
          cat docker-downloads.json
          git init -q -b badges
          git config user.name "github-actions[bot]"
          git config user.email "41898282+github-actions[bot]@users.noreply.github.com"
          git add docker-downloads.json
          git commit -qm "chore: update docker downloads badge ($MESSAGE)"
          git push -qf "https://x-access-token:${GH_TOKEN}@github.com/${GITHUB_REPOSITORY}.git" badges