name: update-pr-artifacts
on:
  workflow_run:
    workflows: [validate]
    types:
      - completed
jobs:
  update-pr-artifacts:
    runs-on: ubuntu-latest
    if: github.event.workflow_run.event == 'pull_request'
    name: Update PR Artifacts
    steps:
      - name: Get PR Number
        id: pr-number
        env:
          GITHUB_TOKEN: ${{ secrets.GITHUB_TOKEN }}
        run: |
          # Get list of PR's associated to the commit that triggered the workflow run
          prs=$(gh api \
          -H "Accept: application/vnd.github+json" \
          /repos/${{ github.event.pull_request.head.repo.full_name  }}/commits/${{ github.event.workflow_run.head_sha }}/pulls)
        
          # Find the PR against the current repo
          pr_number=$(echo "$prs" | jq -r '.[] | select(.base.repo.full_name == "${{ github.repository }}") | .number' | head -n1)
          
          if [ -z "$pr_number" ]; then
            echo "No pull request found for this workflow run"
            exit 1
          else
            echo "pr_number=$pr_number" >> $GITHUB_OUTPUT
            echo "PR number: $pr_number"
          fi
      - name: Create Artifacts Content
        id: artifacts-content
        uses: actions/github-script@v7
        with:
          result-encoding: string
          script: |
            const artifacts = await github.rest.actions.listWorkflowRunArtifacts({
              owner: context.repo.owner,
              repo: context.repo.repo,
              run_id: context.payload.workflow_run.id,
            });
            
            const nightlyLinks = artifacts.data.artifacts.reduce((acc, item) => {
              acc += `- [${item.name}.zip](https://nightly.link/${context.repo.owner}/${context.repo.repo}/actions/artifacts/${item.id}.zip)\n`;
              return acc;
            }, '### Build Artifacts\n');
      
            return nightlyLinks;
      - name: Update PR Description
        uses: garrettjoecox/pr-section@3.1.0
        with:
            section-name: 'artifacts'
            repo-token: '${{ secrets.GITHUB_TOKEN }}'
            pr-number: ${{ steps.pr-number.outputs.pr_number }}
            section-value: '${{ steps.artifacts-content.outputs.result }}'