#103 Site-Wide Announcements (revised)

rails g integration_test announcement
rails g model announcement message:text starts_at:datetime ends_at:datetime
rails g controller announcements
rake spec

<% Announcement.current(cookies.signed[:hidden_announcement_ids]).each do |announcement| %>
  <%= div_for announcement do %>
    <%= announcement.message %>
    <%= link_to "hide announcement", hide_announcement_path(announcement), remote: true %>
  <% end %>
<% end %>

match 'announcements/:id/hide', to: 'announcements#hide', as: 'hide_announcement'

def hide
  ids = [params[:id], *cookies.signed[:hidden_announcement_ids]]
  cookies.permanent.signed[:hidden_announcement_ids] = ids
  respond_to do |format|
    format.html { redirect_to :back }
    format.js
  end
end

$("#announcement_<%= j params[:id] %>").remove();

def self.current(hidden_ids = nil)
  result = where("starts_at <= :now and ends_at >= :now", now: Time.zone.now)
  result = result.where("id not in (?)", hidden_ids) if hidden_ids.present?
  result
end

.announcement {
  width: 100%;
  background-color: #F1F094;
  border-bottom: solid 1px black;
  padding: 10px 0;
  text-align: center;
  a {
    font-size: 12px;
    margin-left: 5px;
    color: #6E5910;
  }
}

gem 'rspec-rails', groups: [:test, :development]
group :test do
  gem 'capybara'
  gem 'launchy'
  gem 'poltergeist'
end

config.filter_run focus: true
config.run_all_when_everything_filtered = true

describe "Announcements" do
  it "displays active announcements" do
    Announcement.create! message: "Hello World", starts_at: 1.hour.ago, ends_at: 1.hour.from_now
    Announcement.create! message: "Upcoming", starts_at: 10.minutes.from_now, ends_at: 1.hour.from_now
    visit root_path
    page.should have_content("Hello World")
    page.should_not have_content("Upcoming")
    click_on "hide announcement"
    page.should_not have_content("Hello World")
  end
  
  it "stays on page when hiding announcement with javascript", js: true do
    Announcement.create! message: "Hello World", starts_at: 1.hour.ago, ends_at: 1.hour.from_now
    visit root_path
    page.should have_content("Hello World")
    expect { click_on "hide announcement" }.to_not change { page.response_headers }
    page.should_not have_content("Hello World")
  end
end

describe Announcement do
  it "has current scope" do
    passed = Announcement.create! starts_at: 1.day.ago, ends_at: 1.hour.ago
    current = Announcement.create! starts_at: 1.hour.ago, ends_at: 1.day.from_now
    upcoming = Announcement.create! starts_at: 1.hour.from_now, ends_at: 1.day.from_now
    Announcement.current.should eq([current])
  end

  it "does not include ids passed in to current" do
    current1 = Announcement.create! starts_at: 1.hour.ago, ends_at: 1.day.from_now
    current2 = Announcement.create! starts_at: 1.hour.ago, ends_at: 1.day.from_now
    Announcement.current([current2.id]).should eq([current1])
  end

  it "includes current when nil is passed in" do
    current = Announcement.create! starts_at: 1.hour.ago, ends_at: 1.day.from_now
    Announcement.current(nil).should eq([current])
  end
end