require 'spec_helper'

describe Gull::Alert do
  it 'should initialize with geocode' do
    alert = Gull::Alert.new
    expect(alert.geocode).not_to be_nil
  end

  it 'should fetch parsed alerts' do
    xml = File.read 'spec/fixtures/alerts.xml'

    stub_request(:get, 'http://alerts.weather.gov/cap/us.php?x=1')
      .with(headers: { 'Accept' => '*/*' })
      .to_return(status: 200, body: xml, headers: {})

    alerts = Gull::Alert.fetch
    expect(alerts.size).to eq(3)

    first = alerts.first
    expect(first.id).to eq 'http://alerts.weather.gov/cap/wwacapget.php?x=CA125171381DD0.HeatAdvisory'
    expect(first.link).to eq 'http://alerts.weather.gov/cap/wwacapget.php?x=CA125171381DD0.HeatAdvisory'
    expect(first.alert_type).to eq 'Heat Advisory'
    expect(first.title).to eq 'Heat Advisory issued October 01 at 8:40AM PDT' \
      ' until October 03 at 9:00PM PDT by NWS'
    expect(first.summary).to eq 'SUMMARY TEXT'

    coordinates = [[27.35, -81.79], [27.14, -81.89], [27.04, -81.97],
                   [27.04, -82.02], [27.14, -81.97], [27.35, -81.86],
                   [27.35, -81.79]]
    expect(first.polygon.coordinates).to eq coordinates

    expect(first.effective_at).to eq Time.parse('2014-10-01T08:40:00-07:00')
    expect(first.expires_at).to eq Time.parse('2014-10-03T21:00:00-07:00')
    expect(first.updated_at).to eq Time.parse('2014-10-01T08:40:00-07:05')
    expect(first.published_at).to eq Time.parse('2014-10-01T08:40:00-07:06')

    expect(first.area).to eq 'Southern Salinas Valley, Arroyo Seco and Lake ' \
      'San Antonio'
    expect(first.urgency).to eq :expected
    expect(first.severity).to eq :minor
    expect(first.certainty).to eq :very_likely

    expect(first.geocode.fips6).to eq '006001 006013 006041 006053 006055 ' \
      '006069 006075 006081 006085 006087 006097'
    expect(first.geocode.ugc).to eq 'CAZ006 CAZ505 CAZ506 CAZ507 CAZ508 ' \
      'CAZ509 CAZ510 CAZ511 CAZ512'

    expect(first.vtec).to eq '/O.NEW.KMTR.HT.Y.0002.141002T1900Z-141004T0400Z/'

    second = alerts[1]
    expect(second.polygon).to be_nil
    expect(second.vtec).to be_nil

    third = alerts[2]
    expect(third.vtec).to be_nil
    expect(third.link).to be_nil
  end

  it 'should fetch from url in options' do
    xml = File.read 'spec/fixtures/alerts.xml'

    stub_request(:get, 'http://alerts.weather.gov/cap/ok.php?x=1')
      .with(headers: { 'Accept' => '*/*' })
      .to_return(status: 200, body: xml, headers: {})

    alerts = Gull::Alert.fetch(url: 'http://alerts.weather.gov/cap/ok.php?x=1')
    expect(alerts.size).to eq(3)
  end

  it 'should handle empty alerts' do
    xml = File.read 'spec/fixtures/empty.xml'

    stub_request(:get, 'http://alerts.weather.gov/cap/us.php?x=1')
      .with(headers: { 'Accept' => '*/*' })
      .to_return(status: 200, body: xml, headers: {})

    alerts = Gull::Alert.fetch
    expect(alerts.size).to eq(0)
  end

  it 'should handle bad response' do
    xml = File.read 'spec/fixtures/bad.xml'

    stub_request(:get, 'http://alerts.weather.gov/cap/us.php?x=1')
      .with(headers: { 'Accept' => '*/*' })
      .to_return(status: 200, body: xml, headers: {})

    alerts = Gull::Alert.fetch
    expect(alerts.size).to eq(0)
  end

  it 'should raise own error if timeout occurs' do
    stub_request(:get, 'http://alerts.weather.gov/cap/us.php?x=1')
      .with(headers: { 'Accept' => '*/*' }).to_timeout

    message = 'Timeout while connecting to NWS web service'
    expect { Gull::Alert.fetch }
      .to raise_error(Gull::TimeoutError, message)
  end

  it 'should handle missing cap section' do
    xml = File.read 'spec/fixtures/missing_cap.xml'

    stub_request(:get, 'http://alerts.weather.gov/cap/us.php?x=1')
      .with(headers: { 'Accept' => '*/*' })
      .to_return(status: 200, body: xml, headers: {})

    alerts = Gull::Alert.fetch
    expect(alerts.size).to eq 0
  end
end