require 'rails_helper'

describe CensusApi 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) { {get_habita_datos_response: {get_habita_datos_return: {datos_habitante: {}}}} }
    let(:valid_body){ {get_habita_datos_response: {get_habita_datos_return: {datos_habitante: {item: {fecha_nacimiento_string: "1-1-1980"}}}}} }

    it "returns the response for the first valid variant" do
      allow(api).to receive(:get_response_body).with(1, "00123456").and_return(invalid_body)
      allow(api).to receive(:get_response_body).with(1, "123456").and_return(invalid_body)
      expect(api).to receive(:get_response_body).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(1980,1,1))
    end

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

      expect(response).to_not be_valid
    end
  end

end
