require 'spec_helper'

module Calagator

describe Source::Parser::Facebook, :type => :model do
  let(:event_url) { "http://facebook.com/event.php?eid=247619485255249" }
  let(:graph_url) { "https://graph.facebook.com/247619485255249?access_token=foo" }

  context "with an app access token configured" do
    before do
      Calagator.facebook_access_token = "foo"
    end

    describe "when importing an event" do
      before(:each) do
        stub_request(:get, graph_url).to_return(body: read_sample('facebook.json'), headers: { content_type: "application/json" })
        @events = Source::Parser::Facebook.to_events(url: event_url)
        @event = @events.first
      end

      it "should find one event" do
        expect(@events.size).to eq 1
      end

      it "should set event details" do
        expect(@event.title).to eq "Open Source Bridge 2012"
        time = Time.zone.parse("26 Jun 2012 09:00:00")
        expect(@event.start_time).to eq time
      end

      it "should tag Facebook events with automagic machine tags" do
        expect(@event.tag_list).to eq ["facebook:event=247619485255249"]
      end

      it "should set the event url to the original import URL" do
        expect(@event.url).to eq event_url
      end

      it "should populate a venue when structured data is provided" do
        expect(@event.venue.title).to          eq "Eliot Center"
        expect(@event.venue.street_address).to eq "1226 SW Salmon Street"
        expect(@event.venue.locality).to       eq "Portland"
        expect(@event.venue.region).to         eq "Oregon"
        expect(@event.venue.country).to        eq "United States"
        expect(@event.venue.latitude.to_s).to  eq "45.5236"
        expect(@event.venue.longitude.to_s).to eq "-122.675"
      end
    end

    describe "when parsing Facebook URLs" do
      def should_parse(url)
        expect(url.match(Source::Parser::Facebook.url_pattern)[1]).to eq "247619485255249"
      end

      it "should parse a GET-style URL" do
        should_parse 'http://facebook.com/event.php?eid=247619485255249'
      end

      it "should parse a GET-style URL using HTTPS" do
        should_parse 'https://facebook.com/event.php?eid=247619485255249'
      end

      it "should parse a REST-style URL" do
        should_parse 'http://www.facebook.com/events/247619485255249'
      end

      it "should parse a GET-style URL with a 'www.' host prefix" do
        should_parse 'http://www.facebook.com/event.php?eid=247619485255249'
      end

      it "should parse an HTTP API uri" do
        should_parse 'http://graph.facebook.com/247619485255249'
      end

      it "should parse an HTTPS API uri" do
        should_parse 'https://graph.facebook.com/247619485255249'
      end
    end

  end

  context "without an app access token configured" do
    before { Calagator.facebook_access_token = nil }

    it "should raise an exception" do
      expect{ Source::Parser::Facebook.to_events(url: event_url) }.to raise_exception Source::Parser::HttpAuthenticationRequiredError
    end
  end
end

end