require File.expand_path(File.dirname(__FILE__) + '/../spec_helper')
include Barometer

describe Barometer::WeatherService::Wunderground, :vcr => {
  :cassette_name => "WeatherService::Wunderground"
} do
  before(:each) do
    @accepted_formats = [:zipcode, :postalcode, :icao, :coordinates, :geocode]
    @base_uri = "http://api.wunderground.com/auto/wui/geo"
  end

  describe "the class methods" do
    it "defines accepted_formats" do
      WeatherService::Wunderground._accepted_formats.should == @accepted_formats
    end

    it "defines source_name" do
      WeatherService::Wunderground._source_name.should == :wunderground
    end

    it "defines fetch_current" do
      WeatherService::Wunderground.respond_to?("_fetch_current").should be_true
    end

    it "defines fetch_forecast" do
      WeatherService::Wunderground.respond_to?("_fetch_forecast").should be_true
    end
  end

  describe "building the current data" do
    it "defines the build method" do
      WeatherService::Wunderground.respond_to?("_build_current").should be_true
    end

    it "requires Hash input" do
      lambda { WeatherService::Wunderground._build_current }.should raise_error(ArgumentError)
      WeatherService::Wunderground._build_current({})
      lambda { WeatherService::Wunderground._build_current({}) }.should_not raise_error(ArgumentError)
    end

    it "returns Barometer::CurrentMeasurement object" do
      current = WeatherService::Wunderground._build_current({})
      current.is_a?(Measurement::Result).should be_true
    end
  end

  describe "building the forecast data" do
    it "defines the build method" do
      WeatherService::Wunderground.respond_to?("_build_forecast").should be_true
    end

    it "requires Hash input" do
      lambda { WeatherService::Wunderground._build_forecast }.should raise_error(ArgumentError)
      lambda { WeatherService::Wunderground._build_forecast({}) }.should_not raise_error(ArgumentError)
    end

    it "returns Array object" do
      current = WeatherService::Wunderground._build_forecast({})
      current.is_a?(Array).should be_true
    end
  end

  describe "building the station data" do
    it "defines the build method" do
      WeatherService::Wunderground.respond_to?("_build_station").should be_true
    end

    it "requires Hash input" do
      lambda { WeatherService::Wunderground._build_station }.should raise_error(ArgumentError)
      lambda { WeatherService::Wunderground._build_station({}) }.should_not raise_error(ArgumentError)
    end

    it "returns Barometer::Location object" do
      station = WeatherService::Wunderground._build_station({})
      station.is_a?(Data::Location).should be_true
    end
  end

  describe "building the location data" do
    it "defines the build method" do
      WeatherService::Wunderground.respond_to?("_build_location").should be_true
    end

    it "requires Hash input" do
      lambda { WeatherService::Wunderground._build_location }.should raise_error(ArgumentError)
      lambda { WeatherService::Wunderground._build_location({}) }.should_not raise_error(ArgumentError)
    end

    it "returns Barometer::Location object" do
      location = WeatherService::Wunderground._build_location({})
      location.is_a?(Data::Location).should be_true
    end
  end

  describe "building the timezone" do
    it "defines the build method" do
      WeatherService::Wunderground.respond_to?("_parse_full_timezone").should be_true
    end

    it "requires Hash input" do
      lambda { WeatherService::Wunderground._parse_full_timezone }.should raise_error(ArgumentError)
      lambda { WeatherService::Wunderground._parse_full_timezone({}) }.should_not raise_error(ArgumentError)
    end
  end

  describe "building the sun data" do
    it "defines the build method" do
      WeatherService::Wunderground.respond_to?("_build_sun").should be_true
    end

    it "requires Hash input" do
      lambda { WeatherService::Wunderground._build_sun }.should raise_error(ArgumentError)
      lambda { WeatherService::Wunderground._build_sun({}) }.should_not raise_error(ArgumentError)
    end

    it "requires Barometer::Zone input" do
      lambda { WeatherService::Wunderground._build_sun({}, "invalid") }.should raise_error(ArgumentError)
      lambda { WeatherService::Wunderground._build_sun({}) }.should_not raise_error(ArgumentError)
    end

    it "returns Barometer::Sun object" do
      sun = WeatherService::Wunderground._build_sun({})
      sun.is_a?(Data::Sun).should be_true
    end
  end

  describe "when measuring" do
    before(:each) do
      @query = Barometer::Query.new("Calgary,AB")
      @measurement = Barometer::Measurement.new
    end

    describe "all" do
      it "responds to _measure" do
        WeatherService::Wunderground.respond_to?("_measure").should be_true
      end

      it "requires a Barometer::Measurement object" do
        lambda { WeatherService::Wunderground._measure(nil, @query) }.should raise_error(ArgumentError)
        lambda { WeatherService::Wunderground._measure("invlaid", @query) }.should raise_error(ArgumentError)

        lambda { WeatherService::Wunderground._measure(@measurement, @query) }.should_not raise_error(ArgumentError)
      end

      it "requires a Barometer::Query query" do
        lambda { WeatherService::Wunderground._measure }.should raise_error(ArgumentError)
        lambda { WeatherService::Wunderground._measure(@measurement, 1) }.should raise_error(ArgumentError)

        lambda { WeatherService::Wunderground._measure(@measurement, @query) }.should_not raise_error(ArgumentError)
      end

      it "returns a Barometer::Measurement object" do
        result = WeatherService::Wunderground._measure(@measurement, @query)
        result.is_a?(Barometer::Measurement).should be_true
        result.current.is_a?(Measurement::Result).should be_true
        result.forecast.is_a?(Array).should be_true
      end
    end
  end

  describe "overall data correctness" do
    before(:each) do
      @query = Barometer::Query.new("Calgary,AB")
      @measurement = Barometer::Measurement.new
    end

   it "should correctly build the data" do
      result = WeatherService::Wunderground._measure(@measurement, @query)

      # build timezone
      @measurement.timezone.zone_full.should == "America/Edmonton"
      @measurement.timezone.current.should == "America/Edmonton"

      # build current
      @measurement.current.sun.rise.to_s.should match(/^\d{1,2}:\d{1,2}[ ]?[apmAPM]{0,2}$/i)
      @measurement.current.sun.set.to_s.should match(/^\d{1,2}:\d{1,2}[ ]?[apmAPM]{0,2}$/i)
    end
  end
end