Grabbing matching teams from input

handler.js

const teamsFromText = (text, teams) => {
  const tags = teams.reduce((acc, team) => [...acc, ...team.tags, team.name], []);
  const keywords = text.toLowerCase().split(' ').filter((word) => tags.includes(word));

  if (!keywords.length) {
    const names = teams.map((team) => team.name).join(' ');
    throw new Error(`Don't know any team to match that too. Available teams are \`${names}\`.`);
  }

  return teams.filter((team) => [team.name, ...team.tags].some((tag) => keywords.includes(tag)));
};

// teamsFromText('@oncall identity privacy', [ ..., all teams, ... ]); => [ ..., filtered teams, ... ]