export function checkValues()

in src/components/CompareResults/loader.ts [13:101]

• 82 lines of code
• 10 McCabe index (conditional complexity)

export function checkValues({
  baseRev,
  baseRepo,
  newRevs,
  newRepos,
  framework,
}: {
  baseRev: string | null;
  baseRepo: Repository['name'] | null;
  newRevs: string[];
  newRepos: Repository['name'][];
  framework: string | number | null;
}): {
  baseRev: string;
  baseRepo: Repository['name'];
  newRevs: string[];
  newRepos: Repository['name'][];
  frameworkId: Framework['id'];
  frameworkName: Framework['name'];
} {
  if (baseRev === null) {
    throw new Error('The parameter baseRev is missing.');
  }

  if (baseRepo === null) {
    throw new Error('The parameter baseRepo is missing.');
  }

  const validRepoValues = Object.values(repoMap);
  if (!validRepoValues.includes(baseRepo)) {
    throw new Error(
      `The parameter baseRepo "${baseRepo}" should be one of ${validRepoValues.join(
        ', ',
      )}.`,
    );
  }

  if (framework === null) {
    framework = 1; // default to talos so that manually typing the URL is easier
  }

  const frameworkId = +framework as Framework['id'];
  if (Number.isNaN(frameworkId)) {
    throw new Error(
      `The parameter framework should be a number, but it is "${framework}".`,
    );
  }
  const frameworkName = frameworks.find(
    (entry) => entry.id === frameworkId,
  )?.name;

  if (!frameworkName) {
    throw new Error(
      `The parameter framework isn't a valid value: "${framework}".`,
    );
  }
  if (!newRevs.length) {
    return {
      baseRev,
      baseRepo,
      newRevs: [baseRev],
      newRepos: [baseRepo],
      frameworkId,
      frameworkName,
    };
  }

  if (newRevs.length !== newRepos.length) {
    throw new Error(
      'There should be as many "newRepo" parameters as there are "newRev" parameters.',
    );
  }
  if (!newRepos.every((newRepo) => validRepoValues.includes(newRepo))) {
    throw new Error(
      `Every parameter newRepo "${newRepos.join(
        '", "',
      )}" should be one of ${validRepoValues.join(', ')}.`,
    );
  }

  return {
    baseRev,
    baseRepo,
    newRevs,
    newRepos,
    frameworkId,
    frameworkName,
  };
}