How to Design in Clean Architecture Way, Part 2

design_in_clean_architecture_way.js

const expect = require("chai").expect;

const table = [10, 10, 15, 15, 30, 30, 100];
const boxTable = [0, 1, 0, 0, 1, 0, 1];

const dateDiff = (sD1, sD2) => {
  const d1 = new Date(sD1);
  const d2 = new Date(sD2);
  d1.setHours(0, 0, 0, 0);
  d2.setHours(0, 0, 0, 0);
  return Math.abs(d1 - d2) / 86400000;
};

class SignInRepo {
  constructor(user) {
    this.user = user;
    this.counter = 0;
    this.last = null;
    this.lastBox = -1;
  }
  restoreSingInRecord(counter, last, lastBox) {
    this.counter = counter;
    this.last = last;
    this.lastBox = lastBox;
  }
  update(now) {
    this.counter++;
    this.last = now;
  }
  reset() {
    this.counter = 0;
    this.last = null;
    this.lastBox = -1;
  }
  setLastBox(lastBox) {
    this.lastBox = lastBox;
  }
}

class SignInService {
  constructor(repo) {
    this.repo = repo;
  }
  signIn(now) {
    const diffDay = dateDiff(now, this.repo.last);
    if (diffDay === 0) {
      return 0;
    }
    if (diffDay > 1) {
      this.repo.reset();
    }
    this.repo.update(now);
    return table[this.repo.counter - 1] || 0;
  }
  getTimeline() {
    const ret = [0, 0, 0, 0, 0, 0, 0];

    if (!this.repo.counter) return ret;

    for (let i = 0; i < 7; i++) {
      if (i < this.repo.counter) ret[i] = 1;
    }
    return ret;
  }
  click() {
    for (let i = this.repo.lastBox + 1; i < this.repo.counter; i++) {
      if (boxTable[i] === 1) {
        this.repo.setLastBox(i);
        return 100;
      }
    }
    return 0;
  }
}

describe("step4", () => {
  it("continuous 6d and signin 7th day", () => {
    const user = "User A";
    const now = "2022-01-07 1:11:11";
    const repo = new SignInRepo();
    repo.restoreSingInRecord(6, "2022-01-06 5:55:55", 1);
    const service = new SignInService(repo);

    const timeline1 = service.getTimeline();
    expect(timeline1).to.deep.equal([1, 1, 1, 1, 1, 1, 0]);

    const result = service.signIn(now);
    expect(result).to.be.equal(100);

    const timeline2 = service.getTimeline();
    expect(timeline2).to.deep.equal([1, 1, 1, 1, 1, 1, 1]);
  });

  it("continuous 6d and click box", () => {
    const user = "User A";
    const now = "2022-01-06 11:11:11";
    const repo = new SignInRepo();
    repo.restoreSingInRecord(6, "2022-01-06 5:55:55", 1);
    const service = new SignInService(repo);

    const boxReward1 = service.click(now);
    expect(boxReward1).to.be.equal(100);
    expect(repo.lastBox).to.be.equal(4);

    const boxReward2 = service.click(now);
    expect(boxReward2).to.be.equal(0);
    expect(repo.lastBox).to.be.equal(4);
  });
});