class Blockchain {
  constructor() {
    this.posts = new CollectionWithReputation();
    this.authors = new CollectionWithReputation();
    this.nodes = new CollectionWithReputation();
  }

  vote(voter, batch) {
    if (!this.activeVote) {
      this.activeVote = new VoteInstance(batch);
      this.activeVote.vote(voter, true);
      return;
    }
    if (this.activeVote.matches(batch)) {
      this.activeVote.vote(voter, true);
    } else {
      this.activeVote.vote(voter, false);
    }
  }

  applyBatch(batch) {}
}

class CollectionWithReputation {
  constructor() {
    this.collection = new Map();
    this.reputations = new Map();
  }

  set(id, value) {
    this.collection.set(id, value);
  }

  get(id) {
    this.collection.get(id);
  }

  setReputation(id, value) {
    this.reputations.set(id, value);
  }

  get(id) {
    this.reputations.get(id);
  }
}

class VoteInstance {
  constructor(content) {
    this.content = content;
    this.votes = new Map();
  }

  matches(content) {
    return JSON.stringify(content) === JSON.stringify(this.content);
  }

  vote(voter, opinion) {
    this.votes.set(voter.id, { voter, opinion });
  }

  finalize() {
    const count = { for: 0, against: 0 };
    for (const vote of this.votes) {
      if (vote.opinion === true) {
        count.for++;
      } else {
        count.against++;
      }
    }
    return count.for > count.against;
  }
}