#-- copyright
# OpenProject is a project management system.
#
# Copyright (C) 2012-2013 the OpenProject Team
#
# This program is free software; you can redistribute it and/or
# modify it under the terms of the GNU General Public License version 3.
#
# See doc/COPYRIGHT.rdoc for more details.
#++

require File.expand_path(File.dirname(__FILE__) + "/../../spec_helper.rb")

describe OpenProject::JournalFormatter::Diff do

  include ActionView::Helpers::TagHelper
  # WARNING: the order of the modules is important to ensure that url_for of
  # ActionController::UrlWriter is called and not the one of ActionView::Helpers::UrlHelper
  include ActionView::Helpers::UrlHelper
  include Rails.application.routes.url_helpers

  Struct.new("TestJournal", :id, :journaled)

  let(:klass) { OpenProject::JournalFormatter::Diff }
  let(:id) { 1 }
  let(:journal) do
    Struct::TestJournal.new(id, Issue.new)
  end
  let(:instance) { klass.new(journal) }
  let(:key) { "description" }
  
  # FIXME
  # calling a helper method (link_to in this case) doesn't work always here
  # with rspec-core 2.13.0 in combination with rspec-rails
  # see https://github.com/rspec/rspec-core/issues/817
  # 
  #let(:url) { { :controller => 'journals',
  #              :action => 'diff',
  #              :id => journal.id,
  #              :field => key.downcase,
  #              :protocol => Setting.protocol,
  #              :host => Setting.host_name } }
  #
  # Setting the url by hand is just a workaround until rspec bug is fixed
  let(:url) {"#{Setting.protocol}://#{Setting.host_name}/journals/#{journal.id}/diff/description"}
  let(:link) { link_to(I18n.t(:label_details), url, :class => 'description-details') }
  describe :render do
    describe "WITH the first value beeing nil, and the second a string" do
      let(:expected) { I18n.t(:text_journal_set_with_diff,
                              :label => "<strong>#{key.camelize}</strong>",
                              :link => link) }

      it { instance.render(key, [nil, "new value"]).should == expected }
    end

    describe "WITH the first value beeing a string, and the second a string" do
      let(:expected) { I18n.t(:text_journal_changed_with_diff,
                              :label => "<strong>#{key.camelize}</strong>",
                              :link => link) }

      it { instance.render(key, ["old value", "new value"]).should == expected }
    end

    describe "WITH the first value beeing a string, and the second a string
              WITH de as locale" do

      let(:expected) { I18n.t(:text_journal_changed_with_diff,
                              :label => "<strong>Beschreibung</strong>",
                              :link => link) }

      before do
        I18n.locale = :de
      end

      it { instance.render(key, ["old value", "new value"]).should == expected }

      after do
        I18n.locale = :en
      end
    end

    describe "WITH the first value beeing a string, and the second nil" do
      let(:expected) { I18n.t(:text_journal_deleted_with_diff,
                              :label => "<strong>#{key.camelize}</strong>",
                              :link => link) }

      it { instance.render(key, ["old_value", nil]).should == expected }
    end

    describe "WITH the first value beeing nil, and the second a string
              WITH specifying not to output html" do
      let(:expected) { I18n.t(:text_journal_set_with_diff,
                              :label => key.camelize,
                              :link => url_for(url)) }

      it { instance.render(key, [nil, "new value"], :no_html => true).should == expected }
    end

    describe "WITH the first value beeing a string, and the second a string
              WITH specifying not to output html" do
      let(:expected) { I18n.t(:text_journal_changed_with_diff,
                              :label => key.camelize,
                              :link => url_for(url)) }

      it { instance.render(key, ["old value", "new value"], :no_html => true).should == expected }
    end

    describe "WITH the first value beeing a string, and the second nil" do
      let(:expected) { I18n.t(:text_journal_deleted_with_diff,
                              :label => key.camelize,
                              :link => url_for(url)) }

      it { instance.render(key, ["old_value", nil], :no_html => true).should == expected }
    end

  end
end