feat(draft-pr): add new option to not process PRs which are in draft (#539)

* chore(assignees): add logs

* feat(draft-pr): add new option to not process PRs which are in draft

* refactor(draft-pr): create a dedicated class to handle the logic

* chore(index): update index file

src/classes/exempt-draft-pull-request.ts

@@ -0,0 +1,51 @@
+import {Option} from '../enums/option';
+import {IIssuesProcessorOptions} from '../interfaces/issues-processor-options';
+import {IPullRequest} from '../interfaces/pull-request';
+import {LoggerService} from '../services/logger.service';
+import {Issue} from './issue';
+import {IssueLogger} from './loggers/issue-logger';
+
+export class ExemptDraftPullRequest {
+  private readonly _options: IIssuesProcessorOptions;
+  private readonly _issue: Issue;
+  private readonly _issueLogger: IssueLogger;
+
+  constructor(options: Readonly<IIssuesProcessorOptions>, issue: Issue) {
+    this._options = options;
+    this._issue = issue;
+    this._issueLogger = new IssueLogger(issue);
+  }
+
+  async shouldExemptDraftPullRequest(
+    pullRequestCallback: () => Promise<IPullRequest | undefined | void>
+  ): Promise<boolean> {
+    if (this._issue.isPullRequest) {
+      if (this._options.exemptDraftPr) {
+        this._issueLogger.info(
+          `The option ${this._issueLogger.createOptionLink(
+            Option.ExemptDraftPr
+          )} is enabled`
+        );
+
+        const pullRequest: IPullRequest | undefined | void =
+          await pullRequestCallback();
+
+        if (pullRequest?.draft === true) {
+          this._issueLogger.info(
+            LoggerService.white('└──'),
+            `Skip the $$type draft checks`
+          );
+
+          return true;
+        } else {
+          this._issueLogger.info(
+            LoggerService.white('└──'),
+            `Continuing the process for this $$type because it is not a draft`
+          );
+        }
+      }
+    }
+
+    return false;
+  }
+}