feat: integrate tool with gitlab service (#39)

* feat: integrate tool with gitlab service

Fix https://github.com/lampajr/backporting/issues/30

test/support/mock/git-client-mock-support.ts

@@ -0,0 +1,168 @@
+import LoggerServiceFactory from "@bp/service/logger/logger-service-factory";
+import { Moctokit } from "@kie/mock-github";
+import { targetOwner, repo, mergedPullRequestFixture, openPullRequestFixture, notMergedPullRequestFixture, notFoundPullRequestNumber, sameOwnerPullRequestFixture } from "./github-data";
+import { CLOSED_NOT_MERGED_MR, MERGED_SQUASHED_MR, OPEN_MR, PROJECT_EXAMPLE, SUPERUSER} from "./gitlab-data";
+
+const logger = LoggerServiceFactory.getLogger();
+
+// AXIOS
+
+export const getAxiosMocked = (url: string) => {
+  let data = undefined;
+
+  // gitlab
+
+  if (url.endsWith("merge_requests/1")) {
+    data = MERGED_SQUASHED_MR;
+  } else if (url.endsWith("merge_requests/2")) {
+    data = OPEN_MR;
+  } else if (url.endsWith("merge_requests/3")) {
+    data = CLOSED_NOT_MERGED_MR;
+  } else if (url.endsWith("projects/76316")) {
+    data = PROJECT_EXAMPLE;
+  } else if (url.endsWith("users?username=superuser")) {
+    data = [SUPERUSER];
+  }
+
+  return {
+    data,
+    status: data ? 200 : 404,
+  };
+};
+
+export const NEW_GITLAB_MR_ID = 999;
+export const SECOND_NEW_GITLAB_MR_ID = 1000;
+export const postAxiosMocked = (_url: string, data?: {source_branch: string,}) => {
+  let responseData = undefined;
+
+  // gitlab
+
+  if (data?.source_branch === "bp-branch") {
+    responseData = {
+      // we do not need the whole response
+      iid: NEW_GITLAB_MR_ID,
+      web_url: "https://my.gitlab.host.com/superuser/backporting-example/-/merge_requests/" + NEW_GITLAB_MR_ID
+    };
+  } if (data?.source_branch === "bp-branch-2") {
+    responseData = {
+      // we do not need the whole response
+      iid: SECOND_NEW_GITLAB_MR_ID,
+      web_url: "https://my.gitlab.host.com/superuser/backporting-example/-/merge_requests/" + SECOND_NEW_GITLAB_MR_ID
+    };
+  }
+
+  return {
+    data: responseData,
+    status: responseData ? 200 : 404,
+  };
+};
+
+export const putAxiosMocked = (url: string, _data?: unknown) => {
+  const responseData = undefined;
+
+  // gitlab
+
+  if (url.endsWith(`merge_requests/${NEW_GITLAB_MR_ID}`)) {
+    return {
+      data: {
+        iid: NEW_GITLAB_MR_ID,
+      },
+      status: responseData ? 200 : 404,
+    };
+  }
+
+  throw new Error("Error updating merge request: " + url);
+};
+
+// GITHUB - OCTOKIT
+
+export const mockGitHubClient = (apiUrl = "https://api.github.com"): Moctokit => {
+  logger.debug("Setting up moctokit.");
+  
+  const mock = new Moctokit(apiUrl);
+
+  // setup the mock requests here
+
+  // valid requests
+  mock.rest.pulls
+    .get({
+      owner: targetOwner,
+      repo: repo,
+      pull_number: mergedPullRequestFixture.number
+    })
+    .reply({
+      status: 200,
+      data: mergedPullRequestFixture
+    });
+
+  mock.rest.pulls
+  .get({
+    owner: targetOwner,
+    repo: repo,
+    pull_number: sameOwnerPullRequestFixture.number
+  })
+  .reply({
+    status: 200,
+    data: sameOwnerPullRequestFixture
+  });
+  
+  mock.rest.pulls
+    .get({
+      owner: targetOwner,
+      repo: repo,
+      pull_number: openPullRequestFixture.number
+    })
+    .reply({
+      status: 200,
+      data: openPullRequestFixture
+    });
+  
+  mock.rest.pulls
+  .get({
+    owner: targetOwner,
+    repo: repo,
+    pull_number: notMergedPullRequestFixture.number
+  })
+  .reply({
+    status: 200,
+    data: notMergedPullRequestFixture
+  });
+  
+  mock.rest.pulls
+    .create()
+    .reply({
+      status: 201,
+      data: mergedPullRequestFixture
+    });
+
+  mock.rest.pulls
+    .requestReviewers()
+    .reply({
+      status: 201,
+      data: mergedPullRequestFixture
+    });
+
+  mock.rest.issues
+    .addAssignees()
+    .reply({
+      status: 201,
+      data: {}
+    });
+
+
+  // invalid requests
+  mock.rest.pulls
+    .get({
+      owner: targetOwner,
+      repo: repo,
+      pull_number: notFoundPullRequestNumber
+    })
+    .reply({
+      status: 404,
+      data: {
+        message: "Not found"
+      }
+    });
+    
+  return mock;
+};