require "rails_helper"

describe LocalCensus do
  let(:api) { described_class.new }

  describe "#get_document_number_variants" do
    it "trims and cleans up entry" do
      expect(api.get_document_number_variants(2, "  1 2@ 34")).to eq(["1234"])
    end

    it "returns only one try for passports & residence cards" do
      expect(api.get_document_number_variants(2, "1234")).to eq(["1234"])
      expect(api.get_document_number_variants(3, "1234")).to eq(["1234"])
    end

    it "takes only the last 8 digits for dnis and resicence cards" do
      expect(api.get_document_number_variants(1, "543212345678")).to eq(["12345678"])
    end

    it "tries all the dni variants padding with zeroes" do
      expect(api.get_document_number_variants(1, "0123456")).to eq(["123456", "0123456", "00123456"])
      expect(api.get_document_number_variants(1, "00123456")).to eq(["123456", "0123456", "00123456"])
    end

    it "adds upper and lowercase letter when the letter is present" do
      expect(api.get_document_number_variants(1, "1234567A")).to eq(["1234567", "01234567", "1234567a", "1234567A", "01234567a", "01234567A"])
    end
  end

  describe "#call" do
    let(:invalid_body) { nil }
    let(:valid_body) { create(:local_census_record) }

    it "returns the response for the first valid variant" do
      allow(api).to receive(:get_record).with(1, "00123456").and_return(invalid_body)
      allow(api).to receive(:get_record).with(1, "123456").and_return(invalid_body)
      allow(api).to receive(:get_record).with(1, "0123456").and_return(valid_body)

      response = api.call(1, "123456")

      expect(response).to be_valid
      expect(response.date_of_birth).to eq(Date.new(1970, 1, 31))
    end

    it "returns the last failed response" do
      allow(api).to receive(:get_record).with(1, "00123456").and_return(invalid_body)
      allow(api).to receive(:get_record).with(1, "123456").and_return(invalid_body)
      allow(api).to receive(:get_record).with(1, "0123456").and_return(invalid_body)
      response = api.call(1, "123456")

      expect(response).not_to be_valid
    end
  end

end