public async updatePullRequest()

in src/github/activityBarViewProvider.ts [125:220]
89 lines of code
9 McCabe index (conditional complexity)

	public async updatePullRequest(pullRequestModel: PullRequestModel): Promise<void> {
		if (!this._prChangeListener || (pullRequestModel.number !== this._item.number)) {
			this._prChangeListener?.dispose();
			this._prChangeListener = pullRequestModel.onDidInvalidate(() => this.updatePullRequest(pullRequestModel));
		}
		return Promise.all([
			this._folderRepositoryManager.resolvePullRequest(
				pullRequestModel.remote.owner,
				pullRequestModel.remote.repositoryName,
				pullRequestModel.number,
			),
			this._folderRepositoryManager.getPullRequestRepositoryAccessAndMergeMethods(pullRequestModel),
			pullRequestModel.getTimelineEvents(),
			pullRequestModel.getReviewRequests(),
			this._folderRepositoryManager.getBranchNameForPullRequest(pullRequestModel),
		])
			.then(result => {
				const [pullRequest, repositoryAccess, timelineEvents, requestedReviewers, branchInfo] = result;
				if (!pullRequest) {
					throw new Error(
						`Fail to resolve Pull Request #${pullRequestModel.number} in ${pullRequestModel.remote.owner}/${pullRequestModel.remote.repositoryName}`,
					);
				}

				this._item = pullRequest;
				if (!this._view) {
					// If the there is no PR webview, then there is nothing else to update.
					return;
				}

				this._view.title = `${pullRequest.title} #${pullRequestModel.number.toString()}`;

				const isCurrentlyCheckedOut = pullRequestModel.equals(this._folderRepositoryManager.activePullRequest);
				const hasWritePermission = repositoryAccess!.hasWritePermission;
				const mergeMethodsAvailability = repositoryAccess!.mergeMethodsAvailability;
				const canEdit = hasWritePermission || this._item.canEdit();
				const preferredMergeMethod = vscode.workspace
					.getConfiguration('githubPullRequests')
					.get<MergeMethod>('defaultMergeMethod');
				const defaultMergeMethod = getDefaultMergeMethod(mergeMethodsAvailability, preferredMergeMethod);
				const currentUser = this._folderRepositoryManager.getCurrentUser(this._item);
				this._existingReviewers = parseReviewers(
					requestedReviewers ?? [],
					timelineEvents ?? [],
					pullRequest.author,
				);

				const isCrossRepository =
					pullRequest.base &&
					pullRequest.head &&
					!pullRequest.base.repositoryCloneUrl.equals(pullRequest.head.repositoryCloneUrl);

				const continueOnGitHub = isCrossRepository && isInCodespaces();

				this._postMessage({
					command: 'pr.initialize',
					pullrequest: {
						number: pullRequest.number,
						title: pullRequest.title,
						url: pullRequest.html_url,
						createdAt: pullRequest.createdAt,
						body: pullRequest.body,
						bodyHTML: pullRequest.bodyHTML,
						labels: pullRequest.item.labels,
						author: {
							login: pullRequest.author.login,
							name: pullRequest.author.name,
							avatarUrl: pullRequest.userAvatar,
							url: pullRequest.author.url,
						},
						state: pullRequest.state,
						isCurrentlyCheckedOut: isCurrentlyCheckedOut,
						isRemoteBaseDeleted: pullRequest.isRemoteBaseDeleted,
						base: pullRequest.base.label,
						isRemoteHeadDeleted: pullRequest.isRemoteHeadDeleted,
						isLocalHeadDeleted: !branchInfo,
						head: pullRequest.head?.label ?? '',
						canEdit: canEdit,
						hasWritePermission,
						mergeable: pullRequest.item.mergeable,
						isDraft: pullRequest.isDraft,
						status: { statuses: [] },
						events: [],
						mergeMethodsAvailability,
						defaultMergeMethod,
						isIssue: false,
						isAuthor: currentUser.login === pullRequest.author.login,
						reviewers: this._existingReviewers,
						continueOnGitHub,
					},
				});
			})
			.catch(e => {
				vscode.window.showErrorMessage(formatError(e));
			});
	}