deploy_hooks.yml

name: Deployment Webhooks

on:
  deployment_status:
  workflow_dispatch:

jobs:
  send_webhook:
    if: ${{ github.event.deployment_status == null || github.event.deployment_status.state == 'success' }}
    runs-on: ubuntu-latest
    steps:
      - name: Post blog published notification to Communications channel
        uses: actions/github-script@v6
        env:
          GITHUB_TOKEN: ${{ secrets.GITHUB_TOKEN }}
          OWNER: ${{ github.repository_owner }}
          REPO: ${{ github.event.repository.name }}
          COMMIT: ${{ github.sha }}
          WEBHOOK_URL: ${{ secrets.SLACK_COMMUNICATIONS_WEBHOOK_URL }}

        with:
          github-token: ${{ secrets.GITHUB_TOKEN }}
          script: |
            // Set the GraphQL query
            const query = `
              query ($name:String!, $owner:String!, $commit:String!) {
                repository(owner: $owner, name: $name) {
                  object(expression: $commit) {
                    ... on Commit {
                      associatedPullRequests(first: 1) {
                        nodes {
                          title
                          labels(first: 10) {
                            nodes {
                              name
                            }
                          }
                        }
                      }
                    }
                  }
                }
              }
            `;

            // Set the variables for the GraphQL query
            const variables = { name: "${{ env.REPO }}", owner: "${{ env.OWNER }}", commit: "${{ env.COMMIT }}" };

            // Make the GraphQL API request
            const response = await github.graphql(query, variables);

            // Extract relevant information from the response
            const prs = response.repository.object.associatedPullRequests.nodes
            if (prs.length >= 1) {
              const prTitle = prs[0].title;
              const label = prs[0].labels.nodes.find(node => node.name === 'blog');

              // Check if the pull request has the 'blog' label
              if (label) {
                // Construct the payload for the webhook post
                const payload = { text: `Blog "${prTitle}" post has been published.` };
                const webhookUrl = "${{ env.WEBHOOK_URL }}";
                // Send the webhook post request
                const fetchResponse = await fetch(webhookUrl, {
                  method: 'POST',
                  headers: {'Content-Type': 'application/json'},
                  body: JSON.stringify(payload),
                });
              } else {
                // Debugging measure. Should be removed after we know this all works.
                console.log(prTitle, label, response)
              }
            }