04. Radical Marketing js exam

function solve(args) {
  const log = new Map();
  const subscriptions = new Map();
  let count = 1;

  args.forEach((el) => {
    const currentCommand = el.split('-');

    if (currentCommand.length === 2) {
      if (log.has(currentCommand[0]) && log.has(currentCommand[1])) {
        log.get(currentCommand[1]).add(currentCommand[0]);
        subscriptions.get(currentCommand[0]).add(currentCommand[1]);
      }
    } else if (!log.has(currentCommand[0])) {
      log.set(currentCommand[0], new Set());
      subscriptions.set(currentCommand[0], new Set());
    }
  });

  const sortedLog = new Map([...log.entries()].sort((firstEntry, secondEntry) => {
    const firstEntryName = firstEntry[0];
    const firstEntrySubscribers = firstEntry[1].size;

    const secondEntryName = secondEntry[0];
    const secondEntrySubscribers = secondEntry[1].size;

    let result = secondEntrySubscribers - firstEntrySubscribers;

    if (result === 0) {
      const firstEntrySubscriptions = subscriptions.get(firstEntryName).size;
      const secondEntrySubscriptions = subscriptions.get(secondEntryName).size;

      result = secondEntrySubscriptions - firstEntrySubscriptions;
    }

    return result;
  }));

  const importPerson = [...sortedLog.entries()][0];
  console.log(importPerson[0]);


  importPerson[1].forEach((e) => {
    console.log(`${count}. ${e}`);
    count++;
  });
}