Add supports info section on budgets index page

app/components/budgets/budget_component.html.erb

@@ -32,6 +32,8 @@
         <%= render Budgets::GroupsAndHeadingsComponent.new(budget) %>
       <% end %>
 
+      <%= render Budgets::SupportsInfoComponent.new(budget) %>
+
       <% unless budget.informing? %>
         <div class="map inline">
           <h2><%= t("budgets.index.map") %></h2>

app/components/budgets/investments_list_component.html.erb

@@ -1,5 +1,5 @@
 <% if investments.any? %>
-  <section class="investments-list">
+  <section id="investments_list" class="investments-list">
     <header>
       <h2><%= t("budgets.investments_list.title") %></h2>
     </header>

app/components/budgets/supports_info_component.html.erb

@@ -0,0 +1,30 @@
+<aside class="supports-info">
+  <section>
+    <header>
+      <h2><%= sanitize(t("budgets.supports_info.title")) %></h2>
+    </header>
+
+    <p><%= t("budgets.supports_info.next") %></p>
+    <p><%= sanitize(t("budgets.supports_info.remember")) %></p>
+    <p><%= t("budgets.supports_info.different") %></p>
+  </section>
+
+  <section>
+    <header>
+      <h3><%= support_info_heading %></h3>
+    </header>
+
+    <p><%= t("budgets.supports_info.time",
+              phase_end_date: l(budget.current_phase.ends_at.to_date, format: :long)) %></p>
+
+    <p><%= t("budgets.supports_info.share") %></p>
+
+    <% if budget.single_heading? %>
+      <p>
+        <a href="#investments_list" class="keep-scrolling" data-smooth-scroll>
+          <%= t("budgets.supports_info.scrolling") %><br>
+        </a>
+      </p>
+    <% end %>
+  </section>
+</aside>

app/components/budgets/supports_info_component.rb

@@ -0,0 +1,26 @@
+class Budgets::SupportsInfoComponent < ApplicationComponent
+  delegate :current_user, to: :helpers
+  attr_reader :budget
+
+  def initialize(budget)
+    @budget = budget
+  end
+
+  def render?
+    budget.selecting?
+  end
+
+  private
+
+    def support_info_heading
+      if current_user
+        sanitize(t("budgets.supports_info.supported", count: total_supports))
+      else
+        sanitize(t("budgets.supports_info.supported_not_logged_in"))
+      end
+    end
+
+    def total_supports
+      Vote.where(votable: budget.investments, voter: current_user).count
+    end
+end