Add survey info to admin page (forem#22776)

Author: benhalpern

app/controllers/admin/surveys_controller.rb

@@ -7,7 +7,20 @@ def index
     end
 
     def show
-      @survey = Survey.find(params[:id])
+      @survey = Survey.includes(polls: :poll_options).find(params[:id])
+
+      polls = @survey.polls
+      poll_ids_relation = polls.select(:id)
+
+      @survey_stats = {
+        polls_count: polls.size,
+        completions_count: @survey.survey_completions.count,
+        unique_respondents_count: @survey.survey_completions.select(:user_id).distinct.count,
+        poll_votes_count: polls.sum(:poll_votes_count),
+        poll_skips_count: polls.sum(:poll_skips_count),
+        poll_text_responses_count: PollTextResponse.where(poll_id: poll_ids_relation).count,
+        last_completed_at: @survey.survey_completions.maximum(:completed_at)
+      }
     end
 
     def new

app/views/admin/surveys/show.html.erb

@@ -20,6 +20,53 @@
 </header>
 
 <div class="grid gap-6">
+  <section class="crayons-card p-4">
+    <h2 class="fs-2xl fw-bold mb-4">Survey Overview</h2>
+
+    <div class="grid gap-4 md:grid-cols-3">
+      <div>
+        <p class="fs-xs fw-medium color-base-60 text-uppercase">Total completions</p>
+        <p class="fs-2xl fw-bold"><%= @survey_stats[:completions_count] %></p>
+      </div>
+
+      <div>
+        <p class="fs-xs fw-medium color-base-60 text-uppercase">Unique respondents</p>
+        <p class="fs-2xl fw-bold"><%= @survey_stats[:unique_respondents_count] %></p>
+      </div>
+
+      <div>
+        <p class="fs-xs fw-medium color-base-60 text-uppercase">Polls</p>
+        <p class="fs-2xl fw-bold"><%= @survey_stats[:polls_count] %></p>
+      </div>
+
+      <div>
+        <p class="fs-xs fw-medium color-base-60 text-uppercase">Poll votes</p>
+        <p class="fs-2xl fw-bold"><%= @survey_stats[:poll_votes_count] %></p>
+      </div>
+
+      <div>
+        <p class="fs-xs fw-medium color-base-60 text-uppercase">Poll skips</p>
+        <p class="fs-2xl fw-bold"><%= @survey_stats[:poll_skips_count] %></p>
+      </div>
+
+      <div>
+        <p class="fs-xs fw-medium color-base-60 text-uppercase">Text responses</p>
+        <p class="fs-2xl fw-bold"><%= @survey_stats[:poll_text_responses_count] %></p>
+      </div>
+    </div>
+
+    <div class="mt-4 fs-s color-base-60">
+      <p>Created at: <%= @survey.created_at.strftime("%B %d, %Y %H:%M") %></p>
+      <p>Last updated: <%= @survey.updated_at.strftime("%B %d, %Y %H:%M") %></p>
+
+      <% if @survey_stats[:last_completed_at].present? %>
+        <p>Last completed at: <%= @survey_stats[:last_completed_at].strftime("%B %d, %Y %H:%M") %></p>
+      <% else %>
+        <p>Last completed at: Never</p>
+      <% end %>
+    </div>
+  </section>
+
   <section class="crayons-card p-4">
     <h2 class="fs-2xl fw-bold mb-4">Polls (<%= @survey.polls.count %>)</h2>