# Marks all changed PR as draft
name: Move PR to Draft
on:
  workflow_run:
    workflows: [Draft on Synchronize]
    types:
      - completed

jobs:
  actually-move-to-draft:
    if: ${{ github.event.workflow_run.conclusion == 'success' }}
    runs-on: ubuntu-latest
    steps:
      - name: 'Download artifact'
        uses: actions/github-script@v7
        with:
          script: |
            let allArtifacts = await github.rest.actions.listWorkflowRunArtifacts({
               owner: context.repo.owner,
               repo: context.repo.repo,
               run_id: context.payload.workflow_run.id,
            });
            let matchArtifact = allArtifacts.data.artifacts.filter((artifact) => {
              return artifact.name == "pr_number"
            })[0];
            let download = await github.rest.actions.downloadArtifact({
               owner: context.repo.owner,
               repo: context.repo.repo,
               artifact_id: matchArtifact.id,
               archive_format: 'zip',
            });
            let fs = require('fs');
            fs.writeFileSync(`${process.env.GITHUB_WORKSPACE}/pr_number.zip`, Buffer.from(download.data));

      - name: 'Unzip artifact'
        run: unzip pr_number.zip

      - name: 'Extract PR node id'
        shell: bash
        run: |
          (echo -n "PR_NUMBER=" | cat - pr_number) >> $GITHUB_ENV

      - name: 'Actually move to draft'
        shell: bash
        env:
          MOVE_PR_TO_DRAFT_TOKEN_ENV: ${{ secrets.MOVE_PR_TO_DRAFT_TOKEN }}
        if: ${{ env.MOVE_PR_TO_DRAFT_TOKEN_ENV != '' }}
        run: |
          echo ${{ env.MOVE_PR_TO_DRAFT_TOKEN_ENV }} | gh auth login --with-token
          gh api graphql -F id=${{ env.PR_NUMBER }} -f query='
            mutation($id: ID!) {
              convertPullRequestToDraft(input: { pullRequestId: $id }) {
                pullRequest {
                  id
                  number
                  isDraft
                }
              }
            }
          '