name: Update Plugins

on:
  schedule:
    - cron: '0 6 * * *'  # Daily at 06:00 UTC
  workflow_dispatch:  # Allow manual trigger

# The cross-repo work (cloning ether/ep_* repos, pushing updates, merging
# Dependabot PRs) is authenticated via secrets.PLUGINS_PAT. The default
# GITHUB_TOKEN only needs read access to this repo for actions/checkout.
permissions:
  contents: read

jobs:
  update-plugins:
    runs-on: ubuntu-latest
    steps:
      - name: Check out etherpad-lite
        uses: actions/checkout@v6

      - uses: pnpm/action-setup@v6
        name: Install pnpm
        with:
          version: 10.33.2
          run_install: false

      - name: Use Node.js
        uses: actions/setup-node@v6
        with:
          node-version: 22

      - name: Install bin dependencies
        working-directory: ./bin
        run: pnpm install

      - name: Configure git
        run: |
          git config --global user.name 'github-actions[bot]'
          git config --global user.email '41898282+github-actions[bot]@users.noreply.github.com'

      - name: Clone and update all plugins
        env:
          GH_TOKEN: ${{ secrets.PLUGINS_PAT }}
        run: |
          # Configure git to use the PAT for all ether/ repos
          git config --global url."https://x-access-token:${GH_TOKEN}@github.com/ether/".insteadOf "https://github.com/ether/"

          cd ..
          # List all ep_* repos from ether org
          plugins=$(gh repo list ether --limit 200 --json name --jq '.[] | select(.name | startswith("ep_")) | .name')

          failed=""
          succeeded=""
          skipped=""

          for plugin in $plugins; do
            echo "============================================================"
            echo "Processing $plugin"
            echo "============================================================"

            # Clone if not present
            if [ ! -d "$plugin" ]; then
              git clone "https://github.com/ether/${plugin}.git" "$plugin" || { echo "SKIP: clone failed"; skipped="$skipped $plugin"; continue; }
            fi

            # Pull latest
            (cd "$plugin" && git pull --ff-only) || { echo "SKIP: pull failed"; skipped="$skipped $plugin"; continue; }

            # Run checkPlugin with autopush — continue on failure
            if cd etherpad-lite/bin && pnpm run checkPlugin "$plugin" autopush 2>&1; then
              succeeded="$succeeded $plugin"
            else
              echo "WARN: checkPlugin failed for $plugin"
              failed="$failed $plugin"
            fi
            cd ../..
          done

          echo ""
          echo "============================================================"
          echo "SUMMARY"
          echo "============================================================"
          echo "Succeeded:$(echo $succeeded | wc -w) -$succeeded"
          echo "Failed:$(echo $failed | wc -w) -$failed"
          echo "Skipped:$(echo $skipped | wc -w) -$skipped"

      - name: Merge clean Dependabot PRs on plugin repos
        env:
          GH_TOKEN: ${{ secrets.PLUGINS_PAT }}
        run: |
          # For every ep_* repo under ether, merge any Dependabot PR whose
          # mergeStateStatus is CLEAN (no conflicts, branch up to date, all
          # required checks green). Anything else is left alone for a human.
          plugins=$(gh repo list ether --limit 200 --json name --jq '.[] | select(.name | startswith("ep_")) | .name')

          merged=""
          for plugin in $plugins; do
            repo="ether/${plugin}"
            prs=$(gh pr list --repo "$repo" \
              --author "app/dependabot" \
              --state open \
              --json number,mergeStateStatus,title \
              --jq '.[] | select(.mergeStateStatus=="CLEAN") | .number') || continue

            for pr in $prs; do
              echo "Merging ${repo}#${pr}"
              if gh pr merge --repo "$repo" --squash --delete-branch "$pr"; then
                merged="$merged ${repo}#${pr}"
              else
                echo "WARN: failed to merge ${repo}#${pr}"
              fi
            done
          done

          echo ""
          echo "Merged Dependabot PRs:$merged"