require "rails_helper"

RSpec.describe HtmlVariant, type: :model do
  let(:html_variant) { create(:html_variant, approved: true, published: true) }

  describe "validations" do
    describe "builtin validations" do
      subject { html_variant }

      it { is_expected.to belong_to(:user).optional }

      it { is_expected.to have_many(:html_variant_trials).dependent(:destroy) }
      it { is_expected.to have_many(:html_variant_successes).dependent(:destroy) }

      it { is_expected.to validate_inclusion_of(:group).in_array(described_class::GROUP_NAMES) }
      it { is_expected.to validate_presence_of(:html) }
      it { is_expected.to validate_presence_of(:success_rate) }
      it { is_expected.to validate_uniqueness_of(:name) }
    end
  end

  it "calculates success rate" do
    4.times { HtmlVariantTrial.create!(html_variant_id: html_variant.id) }
    HtmlVariantSuccess.create!(html_variant_id: html_variant.id)

    html_variant.calculate_success_rate!
    expect(html_variant.success_rate).to eq(0.025)
  end

  it "finds for test without tag" do
    html_variant.save!
    expect(described_class.find_for_test.id).to eq(html_variant.id)
  end

  it "finds for test with tag given" do
    html_variant.target_tag = "hello"
    html_variant.save!
    expect(described_class.find_for_test(["hello"]).id).to eq(html_variant.id)
  end

  it "does not find if different tag targeted" do
    html_variant.target_tag = "different_tag_yolo"
    html_variant.save!
    expect(described_class.find_for_test(["hello"])).to eq(nil)
  end

  it "finds if no tag targeted and tag given" do
    html_variant.update(target_tag: nil)
    expect(described_class.find_for_test(["hello"]).id).to eq(html_variant.id)
  end

  it "prefixes an image with cloudinary" do
    html = "<div><img src='https://devimages.com/image.jpg' /></div>"
    html_variant.update(approved: false, html: html)
    cloudinary_string = "/c_limit%2Cf_auto%2Cfl_progressive%2Cq_auto%2Cw_420/https://devimages.com/image.jpg"
    expect(html_variant.html).to include(cloudinary_string)
  end

  it "does not add prefix if it already starts with cloudinary" do
    allow(Images::Optimizer).to receive(:call)
    html = %(<img src="https://res.cloudinary.com/image.jpg">)
    html_variant.update(approved: false, html: html)
    expect(Images::Optimizer).not_to have_received(:call)
  end

  it "does not add prefix if already on site root" do
    allow(Images::Optimizer).to receive(:call)
    html = "<img src=\"#{Images::Optimizer.get_imgproxy_endpoint}/image.jpg\">"
    html_variant.update(approved: false, html: html)
    html_variant.save
    expect(Images::Optimizer).not_to have_received(:call)
  end
end