require "rails_helper"

RSpec.describe Conference, type: :model do
  describe "title" do
    it "must not be blank" do
      expect(build(:conference, title: "")).to have_error_on :title
    end

    it "must be unique" do
      create :conference, title: "ExampleConf"
      expect(build(:conference, title: "ExampleConf")).to have_error_on :title
    end

    it "must be translatable" do
      conference = build(:conference)
      expect(conference).to have_translatable :title
    end
  end

  describe "email" do
    it "must be present" do
      expect(build(:conference, email: "")).to have_error_on :email
    end

    it "can contain exatly one @" do
      expect(build(:conference, email: "test@@example.com")).to have_error_on :email
      expect(build(:conference, email: "test@example.com")).to_not have_error_on :email
      expect(build(:conference, email: "testexample.com")).to have_error_on :email
    end
  end

  describe "description" do
    it "must be present" do
      expect(build(:conference, description: "")).to have_error_on :description
    end

    it "must be translatable" do
      expect(build(:conference)).to have_translatable :description
    end
  end

  it "is invalid without a start date" do
    expect(build(:conference, start_date: nil)).to have_error_on :start_date
  end

  it "is invalid without an end date" do
    expect(build(:conference, end_date: nil)).to have_error_on :end_date
  end

  it "is invalid when the end date is before the start date" do
    expect(build(:conference, start_date: "2014-07-29 21:29:13", end_date: "2014-07-28 01:00:00")).to have_error_on :end_date
  end

  describe "tracks association" do
    let(:conference) { build :conference }
    let(:track) { build :track }

    before do
      conference.save
      track.conference = conference
      track.save
    end

    it "links the conference to its tracks" do
      expect(conference.tracks).to include track
    end
  end

  describe "halls association" do
    let(:conference) { build :conference }
    let(:hall) { build :hall }

    before do
      conference.save
      hall.conference = conference
      hall.save
    end

    it "has many associated halls" do
      expect(conference.halls).to include hall
    end
  end

  describe "call for participation association" do
    let(:conference) { build :conference }
    let(:call_for_participation) { build :call_for_participation }

    before(:each) do
      conference.save
      call_for_participation.conference = conference
      call_for_participation.save
    end

    it "has one call for participation" do
      expect(conference.call_for_participation).to eq call_for_participation
    end

    it "destroys the associated call for participation when destroyed" do
      conference.destroy
      expect { CallForParticipation.find(call_for_participation.id) }.to raise_exception ActiveRecord::RecordNotFound
    end

    it "creates an associated call for participation when the conference is created" do
      conference.save
      expect(conference.call_for_participation).to be_present
    end
  end

  it "accepts nested attributes for tracks" do
    track_attributes = build(:track, conference: nil).attributes
    conference = create :conference
    expect { conference.update tracks_attributes: [track_attributes]}.to change { conference.tracks.count }.by 1
  end

  it "rejects nested attributes for tracks when they are all blank" do
    conference = create :conference
    expect { conference.update tracks_attributes: [{"name" => "", "description" => ""}]}.to_not change { conference.tracks.count }
  end

  it "allows destruction of tracks by nested attributes" do
    conference = create :conference
    track_attributes = create(:track, conference: conference).attributes
    track_attributes["_destroy"] = 1
    expect { conference.update tracks_attributes: [track_attributes]}.to change { conference.tracks.count }.by(-1)
  end

  it "accepts nested attributes for halls" do
    hall_attributes = build(:hall, conference: nil).attributes
    conference = create :conference
    expect { conference.update halls_attributes: [hall_attributes]}.to change { conference.halls.count }.by 1
  end

  it "rejects nested attributes for halls when they are all blank" do
    conference = create :conference
    expect { conference.update halls_attributes: [{"name" => "", "description" => ""}]}.to_not change { conference.halls.count }
  end

  it "allows destruction of halls by nested attributes" do
    conference = create :conference
    hall_attributes = create(:hall, conference: conference).attributes
    hall_attributes["_destroy"] = 1
    expect { conference.update halls_attributes: [hall_attributes]}.to change { conference.halls.count }.by(-1)
  end
end