import { expect } from "chai";
import { Campaign } from "../../../src/models";
import { StepBuilder } from "../../../src/steps/stepBuilder";
import { FakeRequestBuilder } from "../fakeRequestBuilder";
import CampaignSizeStep from "../../../src/steps/campaignSize/campaignSize.step";
import { FakeCampaign } from "../fake/Campaign";

describe("CampaignSizeStep", function () {
  const campaignSizeStep = new StepBuilder(new CampaignSizeStep()).build();
  const campaigns: Campaign[] = [
    new FakeCampaign("1"),
    new FakeCampaign("2"),
    new FakeCampaign("3"),
    new FakeCampaign("4"),
  ];

  it("should not change the campaigns when size is not set", async function () {
    const request = new FakeRequestBuilder().withCampaigns(...campaigns).build();

    const result = await campaignSizeStep.execute(request);

    expect(result.passedCampaigns.length).to.equal(4);
    expect(request.campaigns.length).to.equal(4);
    expect(result.passedCampaigns[0].id).to.equal("1");
    expect(result.passedCampaigns[1].id).to.equal("2");
    expect(result.passedCampaigns[2].id).to.equal("3");
    expect(result.passedCampaigns[3].id).to.equal("4");
  });
  it("should not change the campaigns when size is bigger than the number of campaigns", async function () {
    const request = new FakeRequestBuilder()
      .withCampaigns(...campaigns)
      .withSize(5)
      .build();

    const result = await campaignSizeStep.execute(request);

    expect(result.passedCampaigns.length).to.equal(4);
    expect(request.campaigns.length).to.equal(4);
    expect(result.passedCampaigns[0].id).to.equal("1");
    expect(result.passedCampaigns[1].id).to.equal("2");
    expect(result.passedCampaigns[2].id).to.equal("3");
    expect(result.passedCampaigns[3].id).to.equal("4");
  });
  it("should return the first 2 campaigns with size 2", async function () {
    const request = new FakeRequestBuilder()
      .withCampaigns(...campaigns)
      .withSize(2)
      .build();

    const result = await campaignSizeStep.execute(request);
    expect(result.passedCampaigns.length).to.equal(2);
    expect(request.campaigns.length).to.equal(2);
    expect(result.passedCampaigns[0].id).to.equal("1");
    expect(result.passedCampaigns[1].id).to.equal("2");
  });
});