Persistence between runs of a GitHub Action using a Discussion

storePRinfo.yml

name: Store PR Info in Discussion

on:
  pull_request:
    types: [opened, synchronize]

permissions:
  discussions: write

jobs:
  update-discussion:
    runs-on: ubuntu-latest

    steps:
      - name: Set up GitHub CLI
        run: |
          echo "${{ secrets.GITHUB_TOKEN }}" | gh auth login --with-token

      - name: Get Repository and Category IDs
        id: get_ids
        run: |
          REPO_ID=$(gh api graphql -f query='
            query {
              repository(owner: "${{ github.repository_owner }}", name: "${{ github.event.repository.name }}") {
                id
              }
            }' --jq '.data.repository.id')
          echo "REPO_ID=$REPO_ID" >> $GITHUB_ENV

          CAT_ID=$(gh api graphql -f query='
            query {
              repository(owner: "${{ github.repository_owner }}", name: "${{ github.event.repository.name }}") {
                discussionCategories(first: 1) {
                  nodes {
                    id
                  }
                }
              }
            }' --jq '.data.repository.discussionCategories.nodes[0].id')
          echo "CAT_ID=$CAT_ID" >> $GITHUB_ENV

      - name: Check if Discussion exists
        id: check_discussion
        run: |
          DISCUSSION_ID=$(gh api graphql -f query='
            query {
              repository(owner: "${{ github.repository_owner }}", name: "${{ github.event.repository.name }}") {
                discussions(first: 100) {
                  nodes {
                    id
                    title
                    body
                  }
                }
              }
            }' --jq '.data.repository.discussions.nodes[] | select(.title == "PR INFO") | .id')
          echo "DISCUSSION_ID=$DISCUSSION_ID" >> $GITHUB_ENV

      - name: Retrieve and Print Previous PR Info
        if: env.DISCUSSION_ID != ''
        run: |
          DISCUSSION_BODY=$(gh api graphql -f query='
            query($id: ID!) {
              node(id: $id) {
                ... on Discussion {
                  body
                }
              }
            }' -f id="${{ env.DISCUSSION_ID }}" --jq '.data.node.body')
          echo "Previous PR Info:"
          echo "$DISCUSSION_BODY"

      - name: Update Discussion with Current PR Info
        if: env.DISCUSSION_ID != ''
        run: |
          NEW_BODY=$(echo -e "PR ID: ${{ github.event.pull_request.id }}\nTitle: ${{ github.event.pull_request.title }}\nAuthor: ${{ github.event.pull_request.user.login }}\nCreated At: ${{ github.event.pull_request.created_at }}\nDescription: ${{ github.event.pull_request.body }}\n")
          gh api graphql -f query='
            mutation($id: ID!, $body: String!) {
              updateDiscussion(input: {discussionId: $id, body: $body}) {
                discussion {
                  url
                }
              }
            }' -f id="${{ env.DISCUSSION_ID }}" -f body="$NEW_BODY"

      - name: Create Discussion if it doesn't exist
        if: env.DISCUSSION_ID == ''
        run: |
          gh api graphql -f query='
            mutation {
              createDiscussion(input: {
                repositoryId: "${{ env.REPO_ID }}",
                title: "PR INFO",
                body: "PR ID: ${{ github.event.pull_request.id }}\nTitle: ${{ github.event.pull_request.title }}\nAuthor: ${{ github.event.pull_request.user.login }}\nCreated At: ${{ github.event.pull_request.created_at }}\nDescription: ${{ github.event.pull_request.body }}",
                categoryId: "${{ env.CAT_ID }}"
              }) {
                discussion {
                  url
                }
              }
            }'