From 825c66bdfab4e7e67359af17d80c3bcd05d0272f Mon Sep 17 00:00:00 2001
From: Thomas von Deyen <thomas@vondeyen.com>
Date: Thu, 22 Jun 2023 10:03:43 +0200
Subject: [PATCH] Add task(s) to visualize element and page usage

---
 lib/alchemy/tasks/usage.rb                 | 33 +++++++++++
 lib/tasks/alchemy/usage.rake               | 40 +++++++++++++
 spec/libraries/alchemy/tasks/usage_spec.rb | 65 ++++++++++++++++++++++
 3 files changed, 138 insertions(+)
 create mode 100644 lib/alchemy/tasks/usage.rb
 create mode 100644 lib/tasks/alchemy/usage.rake
 create mode 100644 spec/libraries/alchemy/tasks/usage_spec.rb

diff --git a/lib/alchemy/tasks/usage.rb b/lib/alchemy/tasks/usage.rb
new file mode 100644
index 0000000000..e678e85a94
--- /dev/null
+++ b/lib/alchemy/tasks/usage.rb
@@ -0,0 +1,33 @@
+# frozen_string_literal: true
+
+module Alchemy
+  module Tasks
+    module Usage
+      extend self
+
+      def elements_count_by_name
+        res = Alchemy::Element.all
+          .select("name, COUNT(*) AS count")
+          .group(:name)
+          .order("count DESC, name ASC")
+          .map { |e| {"name" => e.name, "count" => e.count} }
+        Alchemy::Element.definitions.reject { |definition| res.map { |e| e["name"] }.include? definition["name"] }.each do |definition|
+          res << {"name" => definition["name"], "count" => 0}
+        end
+        res
+      end
+
+      def pages_count_by_type
+        res = Alchemy::Page.all
+          .select("page_layout, COUNT(*) AS count")
+          .group(:page_layout)
+          .order("count DESC, page_layout ASC")
+          .map { |p| {"page_layout" => p.page_layout, "count" => p.count} }
+        Alchemy::PageLayout.all.reject { |page_layout| res.map { |p| p["page_layout"] }.include? page_layout["name"] }.each do |page_layout|
+          res << {"page_layout" => page_layout["name"], "count" => 0}
+        end
+        res
+      end
+    end
+  end
+end
diff --git a/lib/tasks/alchemy/usage.rake b/lib/tasks/alchemy/usage.rake
new file mode 100644
index 0000000000..aba5cd267c
--- /dev/null
+++ b/lib/tasks/alchemy/usage.rake
@@ -0,0 +1,40 @@
+require "alchemy/tasks/usage"
+
+namespace :alchemy do
+  desc "List Alchemy elements and pages usage"
+  task usage: [:page_usage, :element_usage]
+
+  desc "List Alchemy elements usage"
+  task page_usage: :environment do
+    include ActionView::Helpers::NumberHelper
+    puts "\n  Alchemy pages usage"
+    results = Alchemy::Tasks::Usage.pages_count_by_type
+    if results.any?
+      puts "  ----------------------"
+      puts "\n"
+      results.each do |row|
+        puts "  #{number_with_delimiter(row["count"])} 𝗑 #{row["page_layout"]}"
+      end
+      puts "\n  = #{number_with_delimiter(Alchemy::Page.count)} pages in total."
+    else
+      puts "  > No pages found!"
+    end
+  end
+
+  desc "List Alchemy elements usage"
+  task element_usage: :environment do
+    include ActionView::Helpers::NumberHelper
+    puts "\n  Alchemy elements usage"
+    results = Alchemy::Tasks::Usage.elements_count_by_name
+    if results.any?
+      puts "  ----------------------"
+      puts "\n"
+      results.each do |row|
+        puts "  #{number_with_delimiter(row["count"])} 𝗑 #{row["name"]}"
+      end
+      puts "\n  = #{number_with_delimiter(Alchemy::Element.count)} elements in total."
+    else
+      puts "  > No elements found!"
+    end
+  end
+end
diff --git a/spec/libraries/alchemy/tasks/usage_spec.rb b/spec/libraries/alchemy/tasks/usage_spec.rb
new file mode 100644
index 0000000000..de82d17270
--- /dev/null
+++ b/spec/libraries/alchemy/tasks/usage_spec.rb
@@ -0,0 +1,65 @@
+require "rails_helper"
+require "alchemy/tasks/usage"
+
+RSpec.describe Alchemy::Tasks::Usage do
+  describe ".elements_count_by_name" do
+    subject { described_class.elements_count_by_name }
+
+    before do
+      create_list(:alchemy_element, 3, name: "headline")
+      create_list(:alchemy_element, 2, name: "image")
+      create(:alchemy_element, name: "text")
+    end
+
+    it "returns the elements count by name" do
+      expect(subject).to eq [
+        {"name" => "headline", "count" => 3},
+        {"name" => "image", "count" => 2},
+        {"name" => "text", "count" => 1},
+        {"name" => "header", "count" => 0},
+        {"name" => "article", "count" => 0},
+        {"name" => "search", "count" => 0},
+        {"name" => "news", "count" => 0},
+        {"name" => "download", "count" => 0},
+        {"name" => "bild", "count" => 0},
+        {"name" => "contactform", "count" => 0},
+        {"name" => "all_you_can_eat", "count" => 0},
+        {"name" => "erb_element", "count" => 0},
+        {"name" => "slide", "count" => 0},
+        {"name" => "slider", "count" => 0},
+        {"name" => "gallery", "count" => 0},
+        {"name" => "gallery_picture", "count" => 0},
+        {"name" => "right_column", "count" => 0},
+        {"name" => "left_column", "count" => 0},
+        {"name" => "erb_cell", "count" => 0},
+        {"name" => "menu", "count" => 0},
+        {"name" => "old", "count" => 0},
+        {"name" => "element_with_ingredient_groups", "count" => 0},
+        {"name" => "element_with_warning", "count" => 0}
+      ]
+    end
+  end
+
+  describe ".pages_count_by_type" do
+    subject { described_class.pages_count_by_type }
+
+    before do
+      create_list(:alchemy_page, 2, page_layout: "standard")
+      create(:alchemy_page, page_layout: "home")
+    end
+
+    it "returns the pages count by type" do
+      expect(subject).to eq [
+        {"page_layout" => "standard", "count" => 2},
+        {"page_layout" => "home", "count" => 1},
+        {"page_layout" => "index", "count" => 1},
+        {"page_layout" => "readonly", "count" => 0},
+        {"page_layout" => "everything", "count" => 0},
+        {"page_layout" => "news", "count" => 0},
+        {"page_layout" => "contact", "count" => 0},
+        {"page_layout" => "footer", "count" => 0},
+        {"page_layout" => "erb_layout", "count" => 0}
+      ]
+    end
+  end
+end