stale-prs.yml

name: Mark stale pull requests in Shepherd repo

on:
  schedule:
  - cron: '0 0 * * 1'

jobs:
  stale:

    runs-on: ubuntu-latest
    timeout-minutes: 5

    steps:      
      - name: Checkout code
        uses: actions/checkout@692973e3d937129bcbf40652eb9f2f61becf3332
        
      - name: Check PRs and compile report
        id: compile_report
        uses: actions/github-script@60a0d83039c74a4aee543508d2ffcb1c3799cdea
        with:
          script: |
            const fiveDaysAgo = new Date(new Date().setDate(new Date().getDate() - 5)); 
            const threeDaysAgo = new Date(new Date().setDate(new Date().getDate() - 3));
            let report = '';
            let noReviewsReport = '';
            let noChangesReport = '';
            let needsReviews = '';
            let needsChanges = '';
            let needsMerge = '';
            let hasErrors = '';
            try {
                const prs = await github.paginate(github.rest.pulls.list, {
                owner: 'rancher',
                repo: 'shepherd',
                state: 'open',
                per_page: 100,
              });
              for ( const pr of prs ) {
                const createdDate = new Date(pr.created_at); 
                const updatedDate = new Date(pr.updated_at); 
                let lastReviewDate = null
                let lastReviewStateOne = ""
                let lastReviewStateTwo = ""
                let numberOfApprovedState = 0
                statesCompare = ["COMMENTED", "CHANGES_REQUESTED"]
                try{
                  const reviews = await github.rest.pulls.listReviews({
                    owner: 'rancher',
                    repo: 'shepherd',
                    pull_number: pr.number,
                    per_page: 100,
                  });
                  
                  if (pr.draft) {
                    continue;
                  }
                  if ( reviews.data.length == 0 && createdDate < fiveDaysAgo ) {
                    noReviewsReport += `${pr.title} | #${pr.number} ${pr.html_url} by ${pr.user.login}\n`;
                  } 
                  else {
                      for (const review of reviews.data) {
                        const reviewDate = new Date(review.submitted_at);
                        if(!lastReviewDate || reviewDate > lastReviewDate) {
                          lastReviewDate = reviewDate
                          lastReviewStateTwo = lastReviewStateOne
                          lastReviewStateOne = review.state
                          if ( review.state === "APPROVED"){
                            numberOfApprovedState+=1
                          }
                      }
                    }
                  }
                } catch( error ){
                  hasErrors += `${pr.title} | (#${pr.number}) ${pr.html_url} - Error: ${error} \n`;
                }
                if ( lastReviewDate && (lastReviewDate < threeDaysAgo && updatedDate <= lastReviewDate) && statesCompare.includes(lastReviewStateOne) && statesCompare.includes(lastReviewStateTwo) ) {
                  needsChanges += `${pr.title} | (#${pr.number}) ${pr.html_url} by ${pr.user.login} \n`;
                  
                } else if ( lastReviewDate && (updatedDate > lastReviewDate) && (updatedDate < threeDaysAgo) ){
                  needsReviews += `${pr.title} |  (#${pr.number}) ${pr.html_url} by ${pr.user.login} \n`;

                }  else if ( lastReviewDate && numberOfApprovedState >=2 && (lastReviewDate < threeDaysAgo) && !statesCompare.includes(lastReviewStateOne) ) {
                  needsMerge += `${pr.title} | (#${pr.number}) ${pr.html_url} by ${pr.user.login} \n`;
                }
              }
              if ( noReviewsReport ) {
                report += `*PRs with no reviews yet:* \n` + noReviewsReport +`\n\n`
              }
              if ( needsReviews ) {
                report += `*PRs that need reviews:* \n`+ needsReviews +`\n\n` 
              }
              if ( needsChanges ) {
                report += `*PRs with changes requested:* \n`+ needsChanges +`\n\n`
              }
              if ( needsMerge ) {
                report += `*PRs that need to be merged:* \n` + needsMerge
              }
              if ( hasErrors ) {
                report += `*PRs that have errors when fetching:* \n` + hasErrors
              }
              return report;

            } catch( error ){
              report += `*There is an error getting PR Status report - Error:* ${error} \n`;
              return report;
            }
           
          result-encoding: string

      - name: Notify on Slack
        run: |
          result="${{ steps.compile_report.outputs.result }}"
          if [[ -n "$result" ]]; then 
            curl -X POST -H 'Content-type: application/json' --data "{\"text\":\"*PR Status Report:*\n\n$result\"}" ${{ secrets.SLACK_WEBHOOK_URL }}
          else
            curl -X POST -H 'Content-type: application/json' --data '{"text":"*PR Status Report:* There are errors please check the GH actions logs \n\n"}' ${{ secrets.SLACK_WEBHOOK_URL }}
          fi
        shell: bash