label-templated-discussions.yml

---
# borrowed from
# https://github.com/community/community/blob/6c83e35151f0af5614797de5edf90e77aa7e3e23/.github/workflows/label-templated-discussions.yml

name: Label Templated Discussions

on:
  discussion:
    types: [created]

jobs:
  label-templated-discussion:
    runs-on: ubuntu-latest

    steps:
      - name: Get discussion body html
        id: get_discussion_body_html
        env:
          GITHUB_TOKEN: ${{ secrets.GITHUB_TOKEN }}
          OWNER: ${{ github.repository_owner }}
          REPO: ${{ github.event.repository.name }}
          DISCUSSION_NUMBER: ${{ github.event.discussion.number }}
        run: |
          gh api graphql -F owner=$OWNER -F name=$REPO -F number=$DISCUSSION_NUMBER  -f query='
            query($owner: String!, $name: String!, $number: Int!) {
              repository(owner: $owner, name: $name){
                discussion(number: $number) {
                  bodyHTML
                  id
                }
              }
            }' > discussion_data.json

          echo 'DISCUSSION_BODY_HTML='$(jq '.data.repository.discussion.bodyHTML' discussion_data.json) >> $GITHUB_ENV
          echo 'DISCUSSION_ID='$(jq '.data.repository.discussion.id' discussion_data.json) >> $GITHUB_ENV

      - run: npm install jsdom

      - name: Get selected topic
        id: get_selected_topic
        uses: actions/github-script@v7
        with:
          result-encoding: string
          script: |
            try {
              const jsdom = require('jsdom');
              const { JSDOM } = jsdom;
              const { DISCUSSION_BODY_HTML } = process.env

              const fragment = JSDOM.fragment(DISCUSSION_BODY_HTML);
              const selectTopicHeader = fragment.querySelector("h3");
              const templated = selectTopicHeader.textContent === 'Select Topic Area';
              if (!templated) {
                return "";
              }

              const selectedTopicElement = selectTopicHeader.nextElementSibling;
              if (!selectedTopicElement) {
                return "";
              }

              const selectedTopic = selectedTopicElement.textContent.trim().toLowerCase();
              const validTopics = ["feature request", "question", "bug", "show & tell", "general"];
              return validTopics.includes(selectedTopic) ? selectedTopic : "";

            } catch (error) {
              return "";
            }

      - name: Fetch label id for selected topic
        id: fetch_label_id
        if: ${{ steps.get_selected_topic.outputs.result != '' }}
        env:
          GITHUB_TOKEN: ${{ secrets.GITHUB_TOKEN }}
          OWNER: ${{ github.repository_owner }}
          REPO: ${{ github.event.repository.name }}
          TOPIC: ${{ steps.get_selected_topic.outputs.result }}
        run: |
          gh api graphql -F owner=$OWNER -F name=$REPO -F topic="$TOPIC"  -f query='
            query($owner: String!, $name: String!, $topic: String) {
              repository(owner: $owner, name: $name){
                labels(first: 1, query: $topic) {
                  edges {
                    node {
                      id
                      name
                    }
                  }
                }
              }
            }' > repository_label_data.json

          echo 'LABEL_ID='$(jq '.data.repository.labels.edges[].node | .id ' repository_label_data.json) >> $GITHUB_ENV

      - name: Label the discussion
        if: ${{ steps.get_selected_topic.outputs.result != '' }}
        env:
          GITHUB_TOKEN: ${{ secrets.GITHUB_TOKEN }}
        run: |
          gh api graphql -f query='
            mutation($labelableId: ID!, $labelIds: [ID!]!) {
              addLabelsToLabelable(input: {labelableId: $labelableId, labelIds: $labelIds}) {
                labelable {
                  labels(first: 10) {
                    edges {
                      node {
                        id
                        name
                      }
                    }
                  }
                }
              }
            }' -f labelableId=$DISCUSSION_ID -f labelIds=$LABEL_ID