private async getPRLabels()

in functions/src/plugins/merge.ts [128:149]

• 16 lines of code
• 4 McCabe index (conditional complexity)

  private async getPRLabels(context: Context, pr?: Github.PullRequestsGetResponse): Promise<GithubGQL.Labels['nodes']> {
    const {owner, repo} = context.repo();
    pr = pr || context.payload.pull_request;
    const doc = this.pullRequests.doc(pr.id.toString());
    const dbPR = await doc.get();
    let labels: GithubGQL.Labels['nodes'];

    // if the PR is already in Firebase
    if(dbPR.exists) {
      labels = dbPR.data().labels;

      // if we have the labels listed in the PR
      if(labels) {
        return labels;
      }
    }

    // otherwise get the labels from Github and update Firebase
    labels = await getGhPRLabels(context.github, owner, repo, pr.number);
    await this.updateDbPR(context.github, owner, repo, pr.number, context.payload.repository.id, {...pr, labels});
    return labels;
  }