choose.yaml

name: Choose paper

on:
  schedule:
            # ┌─────────── minute (0 - 59)
            # │  ┌────────── hour (0 - 23)
            # │  │  ┌────────── day of the month (1 - 31)
            # │  │  │  ┌────────── month (1 - 12 or JAN-DEC)
            # │  │  │  │  ┌────────── day of the week (0 - 6 or SUN-SAT)
            # │  │  │  │  │
            # │  │  │  │  │
            # │  │  │  │  │
            # *  *  *  *  *
    - cron:  '0 14  *  *  5'
  workflow_dispatch:
    branches: [ main ]
  pull_request:
    branches: [ main ]
    types: [ closed ]

jobs:
  choose:
    if: ${{ vars.PAPER_CHOOSE_ON == 1 && (
            github.event_name != 'pull_request' ||
           (contains(github.event.pull_request.labels.*.name, 'next-paper') &&
            github.event.pull_request.merged == false)
        )}}
    runs-on: ubuntu-latest
    steps:
      - uses: actions/checkout@v3
        with:
          ref: 'main'
      - uses: actions/setup-node@v3
        with:
          node-version: 16

      - name: Run chooser
        run: |
          npm run choose
          npm run web

      - name: Get selection details
        id: vars
        run: |
          echo "title=$(sed -n '1p' ./data/desc.txt)" >> $GITHUB_OUTPUT &&
          echo "mla=$(sed -n '2p' ./data/desc.txt)" >> $GITHUB_OUTPUT &&
          echo "abs=$(sed -n '3p' ./data/desc.txt)" >> $GITHUB_OUTPUT &&
          echo "doi=$(cat ./data/next.txt)" >> $GITHUB_OUTPUT &&
          echo "NOW=$(date +'%d %B')" >> $GITHUB_ENV

      - name: Create commit
        run: |
          git config user.name 'Bot'
          git config user.email 'the-au-forml-lab@users.noreply.github.com'
          git add -A
          git commit -m "Next paper $NOW"

      - name: Create Pull Request
        id: paperpr
        uses: peter-evans/create-pull-request@v4
        with:
          add-paths: files/*.txt
          labels: next-paper
          branch: next-paper
          delete-branch: true
          title: ${{ steps.vars.outputs.title }}
          body: |
            This paper was randomly selected as your next reading.

            ### ${{ steps.vars.outputs.title }}

            ${{ steps.vars.outputs.abs }}

            > ${{ steps.vars.outputs.mla }}

            **Merge this PR to apply selection.**
          reviewers: |
            ${{ fromJSON(vars.REVIEWERS) }}

      - name: Enable PR Automerge
        if: steps.paperpr.outputs.pull-request-operation == 'created'
        uses: peter-evans/enable-pull-request-automerge@v2
        with:
          token: ${{ secrets.AUTOMERGE_PAT }}
          pull-request-number: ${{ steps.paperpr.outputs.pull-request-number }}
          merge-method: squash