Add widget feeds to homepage

Note there is some funkiness going on with class loadings
Had to create a `feed` and `widget_feed` table even though in this
first version the Widget::Feed includes only uses ActiveModel instead
of ActiveRecord, otherwise some specs failed

We’ll figure it out and clean up 😌

app/controllers/admin/widget/feed.rb

@@ -0,0 +1,4 @@
+class Widget
+  class Feed < ActiveRecord::Base
+  end
+end

app/controllers/welcome_controller.rb

@@ -6,6 +6,7 @@ class WelcomeController < ApplicationController
 
   def index
     @header = Widget::Card.header.first
+    @feeds = Widget::Feed.active
     @cards = Widget::Card.body
   end
 

app/models/widget/feed.rb

@@ -0,0 +1,46 @@
+class Widget
+  class Feed
+    include ActiveModel::Model
+
+    KINDS = %w(proposals debates processes)
+
+    attr_accessor :kind
+
+    def initialize(attributes={})
+      super
+      @kind = attributes[:kind]
+    end
+
+    def active?(kind)
+      Setting["feature.homepage.widgets.feeds.#{kind}"].present?
+    end
+
+    def self.active
+      KINDS.collect do |kind|
+        feed = new(kind: kind)
+        feed if feed.active?(kind)
+      end.compact
+    end
+
+    def items
+      send(kind)
+    end
+
+    def proposals
+      Proposal.sort_by_hot_score.limit(limit)
+    end
+
+    def debates
+      Debate.sort_by_hot_score.limit(limit)
+    end
+
+    def processes
+      Legislation::Process.open.limit(limit)
+    end
+
+    def limit
+      3
+    end
+
+  end
+end

app/views/welcome/_feeds.html.erb

@@ -0,0 +1,16 @@
+<h1>Feeds</h1>
+
+<% @feeds.each do |feed| %>
+  
+  <div>
+    <strong>Most active <%= feed.kind %></strong>
+  </div>
+
+  <% feed.items.each do |item| %>    
+    <div class="<%= item.class.to_s.parameterize('_') %>">
+      <%= item.title %>
+    </div>
+    <br/>
+  <% end %>
+  
+<% end %>

app/views/welcome/index.html.erb

@@ -24,6 +24,7 @@
 </div>
 
 <%= render "header", header: @header %>
+<%= render "feeds" %>
 <%= render "cards" %>
 
 <% if feature?("user.recommendations") && (@recommended_debates.present? || @recommended_proposals.present?) %>

db/dev_seeds/settings.rb

@@ -63,4 +63,8 @@ section "Creating Settings" do
   Setting.create(key: 'map_longitude', value: -3.7)
   Setting.create(key: 'map_zoom', value: 10)
   Setting.create(key: 'related_content_score_threshold', value: -0.3)
+
+  Setting['feature.homepage.widgets.feeds.proposals'] = true
+  Setting['feature.homepage.widgets.feeds.debates'] = true
+  Setting['feature.homepage.widgets.feeds.processes'] = true
 end

db/migrate/20180519132610_create_widget_feeds.rb

@@ -0,0 +1,6 @@
+class CreateWidgetFeeds < ActiveRecord::Migration
+  def change
+    create_table :widget_feeds do |t|
+    end
+  end
+end

db/migrate/20180519132715_create_feeds.rb

@@ -0,0 +1,6 @@
+class CreateFeeds < ActiveRecord::Migration
+  def change
+    create_table :feeds do |t|
+    end
+  end
+end

db/schema.rb

@@ -378,6 +378,9 @@ ActiveRecord::Schema.define(version: 20180519132715) do
 
   add_index "failed_census_calls", ["user_id"], name: "index_failed_census_calls_on_user_id", using: :btree
 
+  create_table "feeds", force: :cascade do |t|
+  end
+
   create_table "flags", force: :cascade do |t|
     t.integer  "user_id"
     t.string   "flaggable_type"
@@ -1236,6 +1239,9 @@ ActiveRecord::Schema.define(version: 20180519132715) do
     t.datetime "updated_at",                  null: false
   end
 
+  create_table "widget_feeds", force: :cascade do |t|
+  end
+
   add_foreign_key "administrators", "users"
   add_foreign_key "annotations", "legacy_legislations"
   add_foreign_key "annotations", "users"

db/seeds.rb

@@ -125,3 +125,8 @@ Setting['map_zoom'] = 10
 Setting['related_content_score_threshold'] = -0.3
 
 Setting["feature.user.skip_verification"] = 'true'
+
+Setting['feature.homepage.widgets.feeds.proposals'] = true
+Setting['feature.homepage.widgets.feeds.debates'] = true
+Setting['feature.homepage.widgets.feeds.processes'] = true
+

spec/factories.rb

@@ -818,6 +818,11 @@ FactoryBot.define do
       published false
     end
 
+    trait :open do
+      start_date 1.week.ago
+      end_date   1.week.from_now
+    end
+
   end
 
   factory :legislation_draft_version, class: 'Legislation::DraftVersion' do
@@ -980,4 +985,7 @@ LOREM_IPSUM
     end
   end
 
+  factory :widget_feed, class: 'Widget::Feed' do
+  end
+
 end

spec/features/admin/homepage/homepage_spec.rb

@@ -6,10 +6,72 @@ feature 'Homepage' do
     admin = create(:administrator).user
     login_as(admin)
 
+    Setting['feature.homepage.widgets.feeds.proposals'] = false
+    Setting['feature.homepage.widgets.feeds.debates'] = false
+    Setting['feature.homepage.widgets.feeds.processes'] = false
+    Setting['feature.user.recommendations'] = false
   end
+
+  let(:proposals_setting)    { Setting.where(key: 'feature.homepage.widgets.feeds.proposals').first }
+  let(:debates_setting)      { Setting.where(key: 'feature.homepage.widgets.feeds.debates').first }
+  let(:processes_setting)    { Setting.where(key: 'feature.homepage.widgets.feeds.processes').first }
   scenario "Header" do
   end
 
+  context "Feeds" do
+
+    scenario "Proposals" do
+      5.times { create(:proposal) }
+
+      visit admin_homepage_path
+      within("#setting_#{proposals_setting.id}") do
+        click_button "Enable"
+      end
+
+      expect(page).to have_content "Value updated"
+
+      visit root_path
+
+      expect(page).to have_content "Most active proposals"
+      expect(page).to have_css(".proposal", count: 3)
+    end
+
+    scenario "Debates" do
+      5.times { create(:debate) }
+
+      visit admin_homepage_path
+      within("#setting_#{debates_setting.id}") do
+        click_button "Enable"
+      end
+
+      expect(page).to have_content "Value updated"
+
+      visit root_path
+
+      expect(page).to have_content "Most active debates"
+      expect(page).to have_css(".debate", count: 3)
+    end
+
+    scenario "Processes" do
+      5.times { create(:legislation_process) }
+
+      visit admin_homepage_path
+      within("#setting_#{processes_setting.id}") do
+        click_button "Enable"
+      end
+
+      expect(page).to have_content "Value updated"
+
+      visit root_path
+
+      expect(page).to have_content "Most active processes"
+      expect(page).to have_css(".legislation_process", count: 3)
+    end
+
+    xscenario "Deactivate"
+
+  end
+
   scenario "Cards" do
     card1 = create(:widget_card, title: "Card text",
                                  description: "Card description",

spec/models/widget/feed_spec.rb

@@ -0,0 +1,77 @@
+require 'rails_helper'
+
+describe Widget::Feed do
+
+  let(:feed) { build(:widget_feed) }
+
+  context "validations" do
+    it "is valid" do
+      expect(feed).to be_valid
+    end
+  end
+
+  context "kinds" do
+
+    describe "#proposals" do
+
+      it "returns the most active proposals" do
+        best_proposal = create(:proposal, title: 'Best proposal')
+        best_proposal.update_column(:hot_score, 10)
+
+        worst_proposal = create(:proposal, title: 'Worst proposal')
+        worst_proposal.update_column(:hot_score, 2)
+
+        even_worst_proposal = create(:proposal, title: 'Worst proposal')
+        even_worst_proposal.update_column(:hot_score, 1)
+
+        medium_proposal = create(:proposal, title: 'Medium proposal')
+        medium_proposal.update_column(:hot_score, 5)
+
+        feed = build(:widget_feed, kind: "proposals")
+
+        expect(feed.proposals).to eq([best_proposal, medium_proposal, worst_proposal])
+      end
+
+    end
+
+    describe "#debates" do
+
+      it "returns the most active debates" do
+        best_debate = create(:debate, title: 'Best debate')
+        best_debate.update_column(:hot_score, 10)
+
+        worst_debate = create(:debate, title: 'Worst debate')
+        worst_debate.update_column(:hot_score, 2)
+
+        even_worst_debate = create(:debate, title: 'Worst debate')
+        even_worst_debate.update_column(:hot_score, 1)
+
+        medium_debate = create(:debate, title: 'Medium debate')
+        medium_debate.update_column(:hot_score, 5)
+
+        feed = build(:widget_feed, kind: "debates")
+
+        expect(feed.debates).to eq([best_debate, medium_debate, worst_debate])
+      end
+
+    end
+
+    describe "#processes" do
+
+      it "returns open processes" do
+        open_process1 = create(:legislation_process, :open, title: "Open process 1")
+        open_process2 = create(:legislation_process, :open, title: "Open process 2")
+        open_process3 = create(:legislation_process, :open, title: "Open process 3")
+        open_process4 = create(:legislation_process, :open, title: "Open process 4")
+        past_process = create(:legislation_process, :past, title: "Past process")
+
+        feed = build(:widget_feed, kind: "processes")
+
+        expect(feed.processes).to eq([open_process4, open_process3, open_process2])
+      end
+
+    end
+
+  end
+
+end