index.ts

import url, { URLSearchParams } from 'url';
import delay from 'delay';
import { RenovateConfig } from '../../config/common';
import {
  REPOSITORY_CHANGED,
  REPOSITORY_DISABLED,
  REPOSITORY_NOT_FOUND,
} from '../../constants/error-messages';
import { PLATFORM_TYPE_BITBUCKET_SERVER } from '../../constants/platforms';
import { PR_STATE_ALL, PR_STATE_OPEN } from '../../constants/pull-requests';
import { logger } from '../../logger';
import { BranchStatus } from '../../types';
import * as git from '../../util/git';
import * as hostRules from '../../util/host-rules';
import { HttpResponse } from '../../util/http';
import {
  BitbucketServerHttp,
  setBaseUrl,
} from '../../util/http/bitbucket-server';
import { sanitize } from '../../util/sanitize';
import { ensureTrailingSlash } from '../../util/url';
import {
  BranchStatusConfig,
  CreatePRConfig,
  EnsureCommentConfig,
  EnsureCommentRemovalConfig,
  EnsureIssueConfig,
  EnsureIssueResult,
  FindPRConfig,
  Issue,
  PlatformConfig,
  Pr,
  RepoConfig,
  RepoParams,
  VulnerabilityAlert,
} from '../common';
import { smartTruncate } from '../utils/pr-body';
import { BbbsRestPr, BbsConfig, BbsPr, BbsRestUserRef } from './types';
import * as utils from './utils';
import { PartialDeep } from 'type-fest';
/*
 * Version: 5.3 (EOL Date: 15 Aug 2019)
 * See following docs for api information:
 * https://docs.atlassian.com/bitbucket-server/rest/5.3.0/bitbucket-rest.html
 * https://docs.atlassian.com/bitbucket-server/rest/5.3.0/bitbucket-build-rest.html
 *
 * See following page for uptodate supported versions
 * https://confluence.atlassian.com/support/atlassian-support-end-of-life-policy-201851003.html#AtlassianSupportEndofLifePolicy-BitbucketServer
 */

let config: BbsConfig = {} as any;

const bitbucketServerHttp = new BitbucketServerHttp();

const defaults: any = {
  hostType: PLATFORM_TYPE_BITBUCKET_SERVER,
};

/* istanbul ignore next */
function updatePrVersion(pr: number, version: number): number {
  const res = Math.max(config.prVersions.get(pr) || 0, version);
  config.prVersions.set(pr, res);
  return res;
}

export function initPlatform({
  endpoint,
  username,
  password,
}: RenovateConfig): Promise<PlatformConfig> {
  if (!endpoint) {
    throw new Error('Init: You must configure a Bitbucket Server endpoint');
  }
  if (!(username && password)) {
    throw new Error(
      'Init: You must configure a Bitbucket Server username/password'
    );
  }
  // TODO: Add a connection check that endpoint/username/password combination are valid
  defaults.endpoint = ensureTrailingSlash(endpoint);
  setBaseUrl(defaults.endpoint);
  const platformConfig: PlatformConfig = {
    endpoint: defaults.endpoint,
  };
  return Promise.resolve(platformConfig);
}

// Get all repositories that the user has access to
export async function getRepos(): Promise<string[]> {
  logger.debug('Autodiscovering Bitbucket Server repositories');
  try {
    const repos = await utils.accumulateValues(
      `./rest/api/1.0/repos?permission=REPO_WRITE&state=AVAILABLE`
    );
    const result = repos.map(
      (r: { project: { key: string }; slug: string }) =>
        `${r.project.key.toLowerCase()}/${r.slug}`
    );
    logger.debug({ result }, 'result of getRepos()');
    return result;
  } catch (err) /* istanbul ignore next */ {
    logger.error({ err }, `bitbucket getRepos error`);
    throw err;
  }
}

// Initialize GitLab by getting base branch
export async function initRepo({
  repository,
  localDir,
  optimizeForDisabled,
  bbUseDefaultReviewers,
}: RepoParams): Promise<RepoConfig> {
  logger.debug(
    `initRepo("${JSON.stringify({ repository, localDir }, null, 2)}")`
  );
  const opts = hostRules.find({
    hostType: defaults.hostType,
    url: defaults.endpoint,
  });

  const [projectKey, repositorySlug] = repository.split('/');

  if (optimizeForDisabled) {
    interface RenovateConfig {
      enabled: boolean;
    }

    interface FileData {
      isLastPage: boolean;

      lines: string[];

      size: number;
    }

    let renovateConfig: RenovateConfig;
    try {
      const { body } = await bitbucketServerHttp.getJson<FileData>(
        `./rest/api/1.0/projects/${projectKey}/repos/${repositorySlug}/browse/renovate.json?limit=20000`
      );
      if (!body.isLastPage) {
        logger.warn('Renovate config to big: ' + body.size);
      } else {
        renovateConfig = JSON.parse(body.lines.join());
      }
    } catch {
      // Do nothing
    }
    if (renovateConfig && renovateConfig.enabled === false) {
      throw new Error(REPOSITORY_DISABLED);
    }
  }

  config = {
    projectKey,
    repositorySlug,
    repository,
    prVersions: new Map<number, number>(),
    username: opts.username,
  } as any;

  /* istanbul ignore else */
  if (bbUseDefaultReviewers !== false) {
    logger.debug('Enable bitbucket default reviewer');
    config.bbUseDefaultReviewers = true;
  }

  const { host, pathname } = url.parse(defaults.endpoint!);
  const gitUrl = git.getUrl({
    protocol: defaults.endpoint!.split(':')[0],
    auth: `${opts.username}:${opts.password}`,
    host: `${host}${pathname}${
      pathname.endsWith('/') ? '' : /* istanbul ignore next */ '/'
    }scm`,
    repository,
  });

  await git.initRepo({
    ...config,
    localDir,
    url: gitUrl,
    gitAuthorName: global.gitAuthor?.name,
    gitAuthorEmail: global.gitAuthor?.email,
  });

  try {
    const info = (
      await bitbucketServerHttp.getJson<{
        project: { key: string };
        parent: string;
      }>(
        `./rest/api/1.0/projects/${config.projectKey}/repos/${config.repositorySlug}`
      )
    ).body;
    config.owner = info.project.key;
    logger.debug(`${repository} owner = ${config.owner}`);
    config.defaultBranch = (
      await bitbucketServerHttp.getJson<{ displayId: string }>(
        `./rest/api/1.0/projects/${config.projectKey}/repos/${config.repositorySlug}/branches/default`
      )
    ).body.displayId;
    config.baseBranch = config.defaultBranch;
    config.mergeMethod = 'merge';
    const repoConfig: RepoConfig = {
      baseBranch: config.baseBranch,
      isFork: !!info.parent,
    };
    return repoConfig;
  } catch (err) /* istanbul ignore next */ {
    logger.debug(err);
    if (err.statusCode === 404) {
      throw new Error(REPOSITORY_NOT_FOUND);
    }
    logger.debug({ err }, 'Unknown Bitbucket initRepo error');
    throw err;
  }
}

export async function getRepoForceRebase(): Promise<boolean> {
  logger.debug(`getRepoForceRebase()`);

  // https://docs.atlassian.com/bitbucket-server/rest/7.0.1/bitbucket-rest.html#idp342
  const res = await bitbucketServerHttp.getJson<{
    mergeConfig: { defaultStrategy: { id: string } };
  }>(
    `./rest/api/1.0/projects/${config.projectKey}/repos/${config.repositorySlug}/settings/pull-requests`
  );

  // If the default merge strategy contains `ff-only` the PR can only be merged
  // if it is up to date with the base branch.
  // The current options for id are:
  // no-ff, ff, ff-only, rebase-no-ff, rebase-ff-only, squash, squash-ff-only
  return Boolean(
    res.body.mergeConfig &&
      res.body.mergeConfig.defaultStrategy &&
      res.body.mergeConfig.defaultStrategy.id.includes('ff-only')
  );
}

export async function setBaseBranch(
  branchName: string = config.defaultBranch
): Promise<string> {
  config.baseBranch = branchName;
  const baseBranchSha = await git.setBaseBranch(branchName);
  return baseBranchSha;
}

// Gets details for a PR
export async function getPr(
  prNo: number,
  refreshCache?: boolean
): Promise<BbsPr | null> {
  logger.debug(`getPr(${prNo})`);
  if (!prNo) {
    return null;
  }

  const res = await bitbucketServerHttp.getJson<BbbsRestPr>(
    `./rest/api/1.0/projects/${config.projectKey}/repos/${config.repositorySlug}/pull-requests/${prNo}`,
    { useCache: !refreshCache }
  );

  const pr: BbsPr = {
    displayNumber: `Pull Request #${res.body.id}`,
    ...utils.prInfo(res.body),
    reviewers: res.body.reviewers.map((r) => r.user.name),
    isModified: false,
  };

  pr.version = updatePrVersion(pr.number, pr.version);

  if (pr.state === PR_STATE_OPEN) {
    const mergeRes = await bitbucketServerHttp.getJson<{
      conflicted: string;
      canMerge: string;
    }>(
      `./rest/api/1.0/projects/${config.projectKey}/repos/${config.repositorySlug}/pull-requests/${prNo}/merge`,
      { useCache: !refreshCache }
    );
    pr.isConflicted = !!mergeRes.body.conflicted;
    pr.canMerge = !!mergeRes.body.canMerge;

    const prCommits = (
      await bitbucketServerHttp.getJson<{
        totalCount: number;
        values: { author: { emailAddress: string } }[];
      }>(
        `./rest/api/1.0/projects/${config.projectKey}/repos/${config.repositorySlug}/pull-requests/${prNo}/commits?withCounts=true`,
        { useCache: !refreshCache }
      )
    ).body;

    if (prCommits.totalCount === 1) {
      if (global.gitAuthor) {
        const commitAuthorEmail = prCommits.values[0].author.emailAddress;
        if (commitAuthorEmail !== global.gitAuthor.email) {
          logger.debug(
            { prNo },
            'PR is modified: 1 commit but not by configured gitAuthor'
          );
          pr.isModified = true;
        }
      }
    } else {
      logger.debug(
        { prNo },
        `PR is modified: Found ${prCommits.totalCount} commits`
      );
      pr.isModified = true;
    }
  }

  if (await git.branchExists(pr.branchName)) {
    pr.isStale = await git.isBranchStale(pr.branchName);
  }

  return pr;
}

// TODO: coverage
// istanbul ignore next
function matchesState(state: string, desiredState: string): boolean {
  if (desiredState === PR_STATE_ALL) {
    return true;
  }
  if (desiredState.startsWith('!')) {
    return state !== desiredState.substring(1);
  }
  return state === desiredState;
}

// TODO: coverage
// istanbul ignore next
const isRelevantPr = (
  branchName: string,
  prTitle: string | null | undefined,
  state: string
) => (p: Pr): boolean =>
  p.branchName === branchName &&
  (!prTitle || p.title === prTitle) &&
  matchesState(p.state, state);

// TODO: coverage
// eslint-disable-next-line @typescript-eslint/no-unused-vars
export async function getPrList(_args?: any): Promise<Pr[]> {
  logger.debug(`getPrList()`);
  // istanbul ignore next
  if (!config.prList) {
    const query = new URLSearchParams({
      state: 'ALL',
      'role.1': 'AUTHOR',
      'username.1': config.username,
    }).toString();
    const values = await utils.accumulateValues(
      `./rest/api/1.0/projects/${config.projectKey}/repos/${config.repositorySlug}/pull-requests?${query}`
    );

    config.prList = values.map(utils.prInfo);
    logger.debug({ length: config.prList.length }, 'Retrieved Pull Requests');
  } else {
    logger.debug('returning cached PR list');
  }
  return config.prList;
}

// TODO: coverage
// istanbul ignore next
export async function findPr({
  branchName,
  prTitle,
  state = PR_STATE_ALL,
  refreshCache,
}: FindPRConfig): Promise<Pr | null> {
  logger.debug(`findPr(${branchName}, "${prTitle}", "${state}")`);
  const prList = await getPrList({ refreshCache });
  const pr = prList.find(isRelevantPr(branchName, prTitle, state));
  if (pr) {
    logger.debug(`Found PR #${pr.number}`);
  } else {
    logger.debug(`DID NOT Found PR from branch #${branchName}`);
  }
  return pr;
}

// Returns the Pull Request for a branch. Null if not exists.
export async function getBranchPr(branchName: string): Promise<BbsPr | null> {
  logger.debug(`getBranchPr(${branchName})`);
  const existingPr = await findPr({
    branchName,
    state: PR_STATE_OPEN,
  });
  return existingPr ? getPr(existingPr.number) : null;
}

// istanbul ignore next
export async function refreshPr(number: number): Promise<void> {
  // wait for pr change propagation
  await delay(1000);
  // refresh cache
  await getPr(number, true);
}

export async function deleteBranch(
  branchName: string,
  closePr = false
): Promise<void> {
  logger.debug(`deleteBranch(${branchName}, closePr=${closePr})`);
  // TODO: coverage
  // istanbul ignore next
  if (closePr) {
    // getBranchPr
    const pr = await getBranchPr(branchName);
    if (pr) {
      const { body } = await bitbucketServerHttp.postJson<{ version: number }>(
        `./rest/api/1.0/projects/${config.projectKey}/repos/${config.repositorySlug}/pull-requests/${pr.number}/decline?version=${pr.version}`
      );

      updatePrVersion(pr.number, body.version);
    }
  }
  return git.deleteBranch(branchName);
}

async function getStatus(
  branchName: string,
  useCache = true
): Promise<utils.BitbucketCommitStatus> {
  const branchCommit = await git.getBranchCommit(branchName);

  return (
    await bitbucketServerHttp.getJson<utils.BitbucketCommitStatus>(
      `./rest/build-status/1.0/commits/stats/${branchCommit}`,
      {
        useCache,
      }
    )
  ).body;
}

// Returns the combined status for a branch.
// umbrella for status checks
// https://docs.atlassian.com/bitbucket-server/rest/6.0.0/bitbucket-build-rest.html#idp2
export async function getBranchStatus(
  branchName: string,
  requiredStatusChecks?: string[] | null
): Promise<BranchStatus> {
  logger.debug(
    `getBranchStatus(${branchName}, requiredStatusChecks=${!!requiredStatusChecks})`
  );

  if (!requiredStatusChecks) {
    // null means disable status checks, so it always succeeds
    logger.debug('Status checks disabled = returning "success"');
    return BranchStatus.green;
  }

  if (!(await git.branchExists(branchName))) {
    throw new Error(REPOSITORY_CHANGED);
  }

  try {
    const commitStatus = await getStatus(branchName);

    logger.debug({ commitStatus }, 'branch status check result');

    if (commitStatus.failed > 0) {
      return BranchStatus.red;
    }
    if (commitStatus.inProgress > 0) {
      return BranchStatus.yellow;
    }
    return commitStatus.successful > 0
      ? BranchStatus.green
      : BranchStatus.yellow;
  } catch (err) {
    logger.warn({ err }, `Failed to get branch status`);
    return BranchStatus.red;
  }
}

async function getStatusCheck(
  branchName: string,
  useCache = true
): Promise<utils.BitbucketStatus[]> {
  const branchCommit = await git.getBranchCommit(branchName);

  return utils.accumulateValues(
    `./rest/build-status/1.0/commits/${branchCommit}`,
    'get',
    { useCache }
  );
}

// https://docs.atlassian.com/bitbucket-server/rest/6.0.0/bitbucket-build-rest.html#idp2
export async function getBranchStatusCheck(
  branchName: string,
  context: string
): Promise<BranchStatus | null> {
  logger.debug(`getBranchStatusCheck(${branchName}, context=${context})`);

  try {
    const states = await getStatusCheck(branchName);

    for (const state of states) {
      if (state.key === context) {
        switch (state.state) {
          case 'SUCCESSFUL':
            return BranchStatus.green;
          case 'INPROGRESS':
            return BranchStatus.yellow;
          case 'FAILED':
          default:
            return BranchStatus.red;
        }
      }
    }
  } catch (err) {
    logger.warn({ err }, `Failed to check branch status`);
  }
  return null;
}

export async function setBranchStatus({
  branchName,
  context,
  description,
  state,
  url: targetUrl,
}: BranchStatusConfig): Promise<void> {
  logger.debug(`setBranchStatus(${branchName})`);

  const existingStatus = await getBranchStatusCheck(branchName, context);
  if (existingStatus === state) {
    return;
  }
  logger.debug({ branch: branchName, context, state }, 'Setting branch status');

  const branchCommit = await git.getBranchCommit(branchName);

  try {
    const body: any = {
      key: context,
      description,
      url: targetUrl || 'https://renovatebot.com',
    };

    switch (state) {
      case BranchStatus.green:
        body.state = 'SUCCESSFUL';
        break;
      case BranchStatus.yellow:
        body.state = 'INPROGRESS';
        break;
      case BranchStatus.red:
      default:
        body.state = 'FAILED';
        break;
    }

    await bitbucketServerHttp.postJson(
      `./rest/build-status/1.0/commits/${branchCommit}`,
      { body }
    );

    // update status cache
    await getStatus(branchName, false);
    await getStatusCheck(branchName, false);
  } catch (err) {
    logger.warn({ err }, `Failed to set branch status`);
  }
}

// Issue

// function getIssueList() {
//   logger.debug(`getIssueList()`);
//   // TODO: Needs implementation
//   // This is used by Renovate when creating its own issues, e.g. for deprecated package warnings, config error notifications, or "masterIssue"
//   // BB Server doesnt have issues
//   return [];
// }

export /* istanbul ignore next */ function findIssue(
  title: string
): Promise<Issue | null> {
  logger.debug(`findIssue(${title})`);
  // TODO: Needs implementation
  // This is used by Renovate when creating its own issues, e.g. for deprecated package warnings, config error notifications, or "masterIssue"
  // BB Server doesnt have issues
  return null;
}

export /* istanbul ignore next */ function ensureIssue({
  title,
}: EnsureIssueConfig): Promise<EnsureIssueResult | null> {
  logger.warn({ title }, 'Cannot ensure issue');
  // TODO: Needs implementation
  // This is used by Renovate when creating its own issues, e.g. for deprecated package warnings, config error notifications, or "masterIssue"
  // BB Server doesnt have issues
  return null;
}

export /* istanbul ignore next */ function getIssueList(): Promise<Issue[]> {
  logger.debug(`getIssueList()`);
  // TODO: Needs implementation
  return Promise.resolve([]);
}

export /* istanbul ignore next */ function ensureIssueClosing(
  title: string
): Promise<void> {
  logger.debug(`ensureIssueClosing(${title})`);
  // TODO: Needs implementation
  // This is used by Renovate when creating its own issues, e.g. for deprecated package warnings, config error notifications, or "masterIssue"
  // BB Server doesnt have issues
  return Promise.resolve();
}

export function addAssignees(iid: number, assignees: string[]): Promise<void> {
  logger.debug(`addAssignees(${iid}, ${assignees})`);
  // TODO: Needs implementation
  // Currently Renovate does "Create PR" and then "Add assignee" as a two-step process, with this being the second step.
  // BB Server doesnt support assignees
  return Promise.resolve();
}

export async function addReviewers(
  prNo: number,
  reviewers: string[]
): Promise<void> {
  logger.debug(`Adding reviewers ${reviewers} to #${prNo}`);

  try {
    const pr = await getPr(prNo);
    if (!pr) {
      throw new Error(REPOSITORY_NOT_FOUND);
    }

    const reviewersSet = new Set([...pr.reviewers, ...reviewers]);

    await bitbucketServerHttp.putJson(
      `./rest/api/1.0/projects/${config.projectKey}/repos/${config.repositorySlug}/pull-requests/${prNo}`,
      {
        body: {
          title: pr.title,
          version: pr.version,
          reviewers: Array.from(reviewersSet).map((name) => ({
            user: { name },
          })),
        },
      }
    );
    await getPr(prNo, true);
  } catch (err) {
    if (err.statusCode === 404) {
      throw new Error(REPOSITORY_NOT_FOUND);
    } else if (err.statusCode === 409) {
      throw new Error(REPOSITORY_CHANGED);
    } else {
      logger.fatal({ err }, `Failed to add reviewers ${reviewers} to #${prNo}`);
      throw err;
    }
  }
}

export function deleteLabel(issueNo: number, label: string): Promise<void> {
  logger.debug(`deleteLabel(${issueNo}, ${label})`);
  // TODO: Needs implementation
  // Only used for the "request Renovate to rebase a PR using a label" feature
  return Promise.resolve();
}

type Comment = { text: string; id: number };

async function getComments(prNo: number): Promise<Comment[]> {
  // GET /rest/api/1.0/projects/{projectKey}/repos/{repositorySlug}/pull-requests/{pullRequestId}/activities
  let comments = await utils.accumulateValues(
    `./rest/api/1.0/projects/${config.projectKey}/repos/${config.repositorySlug}/pull-requests/${prNo}/activities`
  );

  comments = comments
    .filter(
      (a: { action: string; commentAction: string }) =>
        a.action === 'COMMENTED' && a.commentAction === 'ADDED'
    )
    .map((a: { comment: Comment }) => a.comment);

  logger.debug(`Found ${comments.length} comments`);

  return comments;
}

async function addComment(prNo: number, text: string): Promise<void> {
  // POST /rest/api/1.0/projects/{projectKey}/repos/{repositorySlug}/pull-requests/{pullRequestId}/comments
  await bitbucketServerHttp.postJson(
    `./rest/api/1.0/projects/${config.projectKey}/repos/${config.repositorySlug}/pull-requests/${prNo}/comments`,
    {
      body: { text },
    }
  );
}

async function getCommentVersion(
  prNo: number,
  commentId: number
): Promise<number> {
  // GET /rest/api/1.0/projects/{projectKey}/repos/{repositorySlug}/pull-requests/{pullRequestId}/comments/{commentId}
  const { version } = (
    await bitbucketServerHttp.getJson<{ version: number }>(
      `./rest/api/1.0/projects/${config.projectKey}/repos/${config.repositorySlug}/pull-requests/${prNo}/comments/${commentId}`
    )
  ).body;

  return version;
}

async function editComment(
  prNo: number,
  commentId: number,
  text: string
): Promise<void> {
  const version = await getCommentVersion(prNo, commentId);

  // PUT /rest/api/1.0/projects/{projectKey}/repos/{repositorySlug}/pull-requests/{pullRequestId}/comments/{commentId}
  await bitbucketServerHttp.putJson(
    `./rest/api/1.0/projects/${config.projectKey}/repos/${config.repositorySlug}/pull-requests/${prNo}/comments/${commentId}`,
    {
      body: { text, version },
    }
  );
}

async function deleteComment(prNo: number, commentId: number): Promise<void> {
  const version = await getCommentVersion(prNo, commentId);

  // DELETE /rest/api/1.0/projects/{projectKey}/repos/{repositorySlug}/pull-requests/{pullRequestId}/comments/{commentId}
  await bitbucketServerHttp.deleteJson(
    `./rest/api/1.0/projects/${config.projectKey}/repos/${config.repositorySlug}/pull-requests/${prNo}/comments/${commentId}?version=${version}`
  );
}

export async function ensureComment({
  number,
  topic,
  content,
}: EnsureCommentConfig): Promise<boolean> {
  const sanitizedContent = sanitize(content);
  try {
    const comments = await getComments(number);
    let body: string;
    let commentId: number | undefined;
    let commentNeedsUpdating: boolean | undefined;
    if (topic) {
      logger.debug(`Ensuring comment "${topic}" in #${number}`);
      body = `### ${topic}\n\n${sanitizedContent}`;
      comments.forEach((comment) => {
        if (comment.text.startsWith(`### ${topic}\n\n`)) {
          commentId = comment.id;
          commentNeedsUpdating = comment.text !== body;
        }
      });
    } else {
      logger.debug(`Ensuring content-only comment in #${number}`);
      body = `${sanitizedContent}`;
      comments.forEach((comment) => {
        if (comment.text === body) {
          commentId = comment.id;
          commentNeedsUpdating = false;
        }
      });
    }
    if (!commentId) {
      await addComment(number, body);
      logger.info(
        { repository: config.repository, prNo: number, topic },
        'Comment added'
      );
    } else if (commentNeedsUpdating) {
      await editComment(number, commentId, body);
      logger.debug(
        { repository: config.repository, prNo: number },
        'Comment updated'
      );
    } else {
      logger.debug('Comment is already update-to-date');
    }
    return true;
  } catch (err) /* istanbul ignore next */ {
    logger.warn({ err }, 'Error ensuring comment');
    return false;
  }
}

export async function ensureCommentRemoval({
  number: prNo,
  topic,
  content,
}: EnsureCommentRemovalConfig): Promise<void> {
  try {
    logger.debug(
      `Ensuring comment "${topic || content}" in #${prNo} is removed`
    );
    const comments = await getComments(prNo);

    const byTopic = (comment: Comment): boolean =>
      comment.text.startsWith(`### ${topic}\n\n`);
    const byContent = (comment: Comment): boolean =>
      comment.text.trim() === content;

    let commentId: number | null = null;

    if (topic) {
      commentId = comments.find(byTopic)?.id;
    } else if (content) {
      commentId = comments.find(byContent)?.id;
    }

    if (commentId) {
      await deleteComment(prNo, commentId);
    }
  } catch (err) /* istanbul ignore next */ {
    logger.warn({ err }, 'Error ensuring comment removal');
  }
}

// Pull Request

const escapeHash = (input: string): string =>
  input ? input.replace(/#/g, '%23') : input;

export async function createPr({
  branchName,
  prTitle: title,
  prBody: rawDescription,
  useDefaultBranch,
}: CreatePRConfig): Promise<Pr> {
  const description = sanitize(rawDescription);
  logger.debug(`createPr(${branchName}, title=${title})`);
  const base = useDefaultBranch ? config.defaultBranch : config.baseBranch;
  let reviewers: BbsRestUserRef[] = [];

  /* istanbul ignore else */
  if (config.bbUseDefaultReviewers) {
    logger.debug(`fetching default reviewers`);
    const { id } = (
      await bitbucketServerHttp.getJson<{ id: number }>(
        `./rest/api/1.0/projects/${config.projectKey}/repos/${config.repositorySlug}`
      )
    ).body;

    const defReviewers = (
      await bitbucketServerHttp.getJson<{ name: string }[]>(
        `./rest/default-reviewers/1.0/projects/${config.projectKey}/repos/${
          config.repositorySlug
        }/reviewers?sourceRefId=refs/heads/${escapeHash(
          branchName
        )}&targetRefId=refs/heads/${base}&sourceRepoId=${id}&targetRepoId=${id}`
      )
    ).body;

    reviewers = defReviewers.map((u) => ({
      user: { name: u.name },
    }));
  }

  const body: PartialDeep<BbbsRestPr> = {
    title,
    description,
    fromRef: {
      id: `refs/heads/${branchName}`,
    },
    toRef: {
      id: `refs/heads/${base}`,
    },
    reviewers,
  };
  let prInfoRes: HttpResponse<BbbsRestPr>;
  try {
    prInfoRes = await bitbucketServerHttp.postJson<BbbsRestPr>(
      `./rest/api/1.0/projects/${config.projectKey}/repos/${config.repositorySlug}/pull-requests`,
      { body }
    );
  } catch (err) /* istanbul ignore next */ {
    if (
      err.body &&
      err.body.errors &&
      err.body.errors.length &&
      err.body.errors[0].exceptionName ===
        'com.atlassian.bitbucket.pull.EmptyPullRequestException'
    ) {
      logger.debug(
        'Empty pull request - deleting branch so it can be recreated next run'
      );
      await deleteBranch(branchName);
      throw new Error(REPOSITORY_CHANGED);
    }
    throw err;
  }

  const pr: BbsPr = {
    displayNumber: `Pull Request #${prInfoRes.body.id}`,
    isModified: false,
    ...utils.prInfo(prInfoRes.body),
  };

  updatePrVersion(pr.number, pr.version);

  // istanbul ignore if
  if (config.prList) {
    config.prList.push(pr);
  }

  return pr;
}

export async function updatePr(
  prNo: number,
  title: string,
  rawDescription: string
): Promise<void> {
  const description = sanitize(rawDescription);
  logger.debug(`updatePr(${prNo}, title=${title})`);

  try {
    const pr = await getPr(prNo);
    if (!pr) {
      throw Object.assign(new Error(REPOSITORY_NOT_FOUND), { statusCode: 404 });
    }

    const { body } = await bitbucketServerHttp.putJson<{ version: number }>(
      `./rest/api/1.0/projects/${config.projectKey}/repos/${config.repositorySlug}/pull-requests/${prNo}`,
      {
        body: {
          title,
          description,
          version: pr.version,
          reviewers: pr.reviewers.map((name: string) => ({ user: { name } })),
        },
      }
    );

    updatePrVersion(prNo, body.version);
  } catch (err) {
    if (err.statusCode === 404) {
      throw new Error(REPOSITORY_NOT_FOUND);
    } else if (err.statusCode === 409) {
      throw new Error(REPOSITORY_CHANGED);
    } else {
      logger.fatal({ err }, `Failed to update PR`);
      throw err;
    }
  }
}

// https://docs.atlassian.com/bitbucket-server/rest/6.0.0/bitbucket-rest.html#idp261
export async function mergePr(
  prNo: number,
  branchName: string
): Promise<boolean> {
  logger.debug(`mergePr(${prNo}, ${branchName})`);
  // Used for "automerge" feature
  try {
    const pr = await getPr(prNo);
    if (!pr) {
      throw Object.assign(new Error(REPOSITORY_NOT_FOUND), { statusCode: 404 });
    }
    const { body } = await bitbucketServerHttp.postJson<{ version: number }>(
      `./rest/api/1.0/projects/${config.projectKey}/repos/${config.repositorySlug}/pull-requests/${prNo}/merge?version=${pr.version}`
    );
    updatePrVersion(prNo, body.version);
  } catch (err) {
    if (err.statusCode === 404) {
      throw new Error(REPOSITORY_NOT_FOUND);
    } else if (err.statusCode === 409) {
      logger.warn({ err }, `Failed to merge PR`);
      return false;
    } else {
      logger.warn({ err }, `Failed to merge PR`);
      return false;
    }
  }

  logger.debug({ pr: prNo }, 'PR merged');
  // Delete branch
  await deleteBranch(branchName);
  return true;
}

export function getPrBody(input: string): string {
  logger.debug(`getPrBody(${input.split('\n')[0]})`);
  // Remove any HTML we use
  return smartTruncate(input, 30000)
    .replace(
      'you tick the rebase/retry checkbox',
      'rename PR to start with "rebase!"'
    )
    .replace(/<\/?summary>/g, '**')
    .replace(/<\/?details>/g, '')
    .replace(new RegExp(`\n---\n\n.*?<!-- rebase-check -->.*?(\n|$)`), '')
    .replace(new RegExp('<!--.*?-->', 'g'), '');
}

export function getVulnerabilityAlerts(): Promise<VulnerabilityAlert[]> {
  logger.debug(`getVulnerabilityAlerts()`);
  return Promise.resolve([]);
}