require "rails_helper"

describe Verification::Management::Email do
  describe "#user" do
    subject do
      Verification::Management::Email.new(document_type: "1",
                                          document_number: "1234",
                                          email: "inexisting@gmail.com")
    end

    it "returns nil/false when the user does not exist" do
      expect(subject.user).to be nil
      expect(subject.user?).not_to be
    end
  end

  describe "validations" do
    it "is not valid if the user does not exist" do
      expect(Verification::Management::Email.new(document_type: "1",
                                                 document_number: "1234",
                                                 email: "inexisting@gmail.com")).not_to be_valid
    end

    it "is not valid if the user is already level 3" do
      user = create(:user, :level_three)

      expect(Verification::Management::Email.new(document_type: "1",
                                                 document_number: "1234",
                                                 email: user.email)).not_to be_valid
    end

    it "is not valid if the user already has a different document number" do
      user = create(:user, document_number: "1234", document_type: "1")

      expect(Verification::Management::Email.new(document_type: "1",
                                                 document_number: "5678",
                                                 email: user.email)).not_to be_valid
    end
  end

  describe "#save" do
    it "does nothing if not valid" do
      email = Verification::Management::Email.new(document_type: "1",
                                                  document_number: "1234",
                                                  email: "inexisting@gmail.com")

      expect(email.save).to be false
    end

    it "updates the user and sends an email" do
      user = create(:user)
      validation = Verification::Management::Email.new(document_type: "1",
                                                       document_number: "1234",
                                                       email: user.email)

      mail = double(:mail)

      allow(validation).to receive(:user).and_return user
      allow(mail).to receive(:deliver_later)
      allow(Devise.token_generator).to(receive(:generate)
                                       .with(User, :email_verification_token)
                                       .and_return(["1", "2"]))
      allow(Mailer).to receive(:email_verification).with(user, user.email, "2", "1", "1234").and_return(mail)

      validation.save!

      expect(user.reload).to be_level_two_verified
      expect(user.document_type).to eq("1")
      expect(user.document_number).to eq("1234")
    end
  end
end
