import * as github from "@actions/github";
import * as githubUtils from "@actions/github/lib/utils";
import test from "ava";
import * as sinon from "sinon";

import * as actionsUtil from "./actions-util";
import * as api from "./api-client";
import { setupTests } from "./testing-utils";
import * as util from "./util";

setupTests(test);

test.beforeEach(() => {
  util.initializeEnvironment(actionsUtil.getActionVersion());
});

test("getApiClient", async (t) => {
  const pluginStub: sinon.SinonStub = sinon.stub(githubUtils.GitHub, "plugin");
  const githubStub: sinon.SinonStub = sinon.stub();
  pluginStub.returns(githubStub);

  sinon.stub(actionsUtil, "getRequiredInput").withArgs("token").returns("xyz");
  const requiredEnvParamStub = sinon.stub(util, "getRequiredEnvParam");
  requiredEnvParamStub
    .withArgs("GITHUB_SERVER_URL")
    .returns("http://github.localhost");
  requiredEnvParamStub
    .withArgs("GITHUB_API_URL")
    .returns("http://api.github.localhost");

  api.getApiClient();

  t.assert(
    githubStub.calledOnceWithExactly({
      auth: "token xyz",
      baseUrl: "http://api.github.localhost",
      log: sinon.match.any,
      userAgent: `CodeQL-Action/${actionsUtil.getActionVersion()}`,
    }),
  );
});

function mockGetMetaVersionHeader(
  versionHeader: string | undefined,
): sinon.SinonStub<any, any> {
  // Passing an auth token is required, so we just use a dummy value
  const client = github.getOctokit("123");
  const response = {
    headers: {
      "x-github-enterprise-version": versionHeader,
    },
  };
  const spyGetContents = sinon
    .stub(client.rest.meta, "get")
    // eslint-disable-next-line @typescript-eslint/no-unsafe-argument
    .resolves(response as any);
  sinon.stub(api, "getApiClient").value(() => client);
  return spyGetContents;
}

test("getGitHubVersion for Dotcom", async (t) => {
  const apiDetails = {
    auth: "",
    url: "https://github.com",
    apiURL: "",
  };
  sinon.stub(api, "getApiDetails").returns(apiDetails);
  const v = await api.getGitHubVersionFromApi(
    github.getOctokit("123"),
    apiDetails,
  );
  t.deepEqual(util.GitHubVariant.DOTCOM, v.type);
});

test("getGitHubVersion for GHES", async (t) => {
  mockGetMetaVersionHeader("2.0");
  const v2 = await api.getGitHubVersionFromApi(api.getApiClient(), {
    auth: "",
    url: "https://ghe.example.com",
    apiURL: undefined,
  });
  t.deepEqual(
    { type: util.GitHubVariant.GHES, version: "2.0" } as util.GitHubVersion,
    v2,
  );
});

test("getGitHubVersion for different domain", async (t) => {
  mockGetMetaVersionHeader(undefined);
  const v3 = await api.getGitHubVersionFromApi(api.getApiClient(), {
    auth: "",
    url: "https://ghe.example.com",
    apiURL: undefined,
  });
  t.deepEqual({ type: util.GitHubVariant.DOTCOM }, v3);
});

test("getGitHubVersion for GHE_DOTCOM", async (t) => {
  mockGetMetaVersionHeader("ghe.com");
  const gheDotcom = await api.getGitHubVersionFromApi(api.getApiClient(), {
    auth: "",
    url: "https://foo.ghe.com",
    apiURL: undefined,
  });
  t.deepEqual({ type: util.GitHubVariant.GHE_DOTCOM }, gheDotcom);
});

test("wrapApiConfigurationError correctly wraps specific configuration errors", (t) => {
  // We don't reclassify arbitrary errors
  const arbitraryError = new Error("arbitrary error");
  let res = api.wrapApiConfigurationError(arbitraryError);
  t.is(res, arbitraryError);

  // Same goes for arbitrary errors
  const configError = new util.ConfigurationError("arbitrary error");
  res = api.wrapApiConfigurationError(configError);
  t.is(res, configError);

  // If an HTTP error doesn't contain a specific error message, we don't
  // wrap is an an API error.
  const httpError = new util.HTTPError("arbitrary HTTP error", 456);
  res = api.wrapApiConfigurationError(httpError);
  t.is(res, httpError);

  // For other HTTP errors, we wrap them as Configuration errors if they contain
  // specific error messages.
  const httpNotFoundError = new util.HTTPError("commit not found", 404);
  res = api.wrapApiConfigurationError(httpNotFoundError);
  t.deepEqual(res, new util.ConfigurationError("commit not found"));

  const refNotFoundError = new util.HTTPError(
    "ref 'refs/heads/jitsi' not found in this repository - https://docs.github.com/rest",
    404,
  );
  res = api.wrapApiConfigurationError(refNotFoundError);
  t.deepEqual(
    res,
    new util.ConfigurationError(
      "ref 'refs/heads/jitsi' not found in this repository - https://docs.github.com/rest",
    ),
  );

  const apiRateLimitError = new util.HTTPError(
    "API rate limit exceeded for installation",
    403,
  );
  res = api.wrapApiConfigurationError(apiRateLimitError);
  t.deepEqual(
    res,
    new util.ConfigurationError("API rate limit exceeded for installation"),
  );

  const tokenSuggestionMessage =
    "Please check that your token is valid and has the required permissions: contents: read, security-events: write";
  const badCredentialsError = new util.HTTPError("Bad credentials", 401);
  res = api.wrapApiConfigurationError(badCredentialsError);
  t.deepEqual(res, new util.ConfigurationError(tokenSuggestionMessage));

  const notFoundError = new util.HTTPError("Not Found", 404);
  res = api.wrapApiConfigurationError(notFoundError);
  t.deepEqual(res, new util.ConfigurationError(tokenSuggestionMessage));

  const resourceNotAccessibleError = new util.HTTPError(
    "Resource not accessible by integration",
    403,
  );
  res = api.wrapApiConfigurationError(resourceNotAccessibleError);
  t.deepEqual(
    res,
    new util.ConfigurationError("Resource not accessible by integration"),
  );

  // Enablement errors.
  const enablementErrorMessages = [
    "Code Security must be enabled for this repository to use code scanning",
    "Advanced Security must be enabled for this repository to use code scanning",
    "Code Scanning is not enabled for this repository. Please enable code scanning in the repository settings.",
  ];
  const transforms = [
    (msg: string) => msg,
    (msg: string) => msg.toLowerCase(),
    (msg: string) => msg.toLocaleUpperCase(),
  ];

  for (const enablementErrorMessage of enablementErrorMessages) {
    for (const transform of transforms) {
      const enablementError = new util.HTTPError(
        transform(enablementErrorMessage),
        403,
      );
      res = api.wrapApiConfigurationError(enablementError);
      t.deepEqual(
        res,
        new util.ConfigurationError(
          api.getFeatureEnablementError(enablementError.message),
        ),
      );
    }
  }
});