Revert "REFACTOR remove unused code childrenservedreportservice"

This reverts commit 141d959.

app/services/reports/children_served_report_service.rb

@@ -31,8 +31,47 @@ def average_children_monthly
       total_children_served / 12.0
     end
 
+    def disposable_diapers_from_kits_total
+      organization_id = @organization.id
+      year = @year
+
+      sql_query = <<-SQL
+        SELECT SUM(line_items.quantity * kit_line_items.quantity)
+        FROM distributions 
+        INNER JOIN line_items ON line_items.itemizable_type = 'Distribution' AND line_items.itemizable_id = distributions.id 
+        INNER JOIN items ON items.id = line_items.item_id 
+        INNER JOIN kits ON kits.id = items.kit_id 
+        INNER JOIN line_items AS kit_line_items ON kits.id = kit_line_items.itemizable_id
+        INNER JOIN items AS kit_items ON kit_items.id = kit_line_items.item_id
+        INNER JOIN base_items ON base_items.partner_key = kit_items.partner_key 
+        WHERE distributions.organization_id = ?
+          AND EXTRACT(year FROM issued_at) = ?
+          AND LOWER(base_items.category) LIKE '%diaper%'
+          AND NOT (LOWER(base_items.category) LIKE '%cloth%' OR LOWER(base_items.name) LIKE '%cloth%')
+          AND NOT (LOWER(base_items.category) LIKE '%adult%')
+      SQL
+
+      sanitized_sql = ActiveRecord::Base.send(:sanitize_sql_array, [sql_query, organization_id, year])
+
+      result = ActiveRecord::Base.connection.execute(sanitized_sql)
+      result.first['sum'].to_i
+    end
+
     private
 
+    def total_disposable_diapers_distributed
+      loose_disposable_distribution_total + disposable_diapers_from_kits_total
+    end
+
+    def loose_disposable_distribution_total
+      organization
+      .distributions
+      .for_year(year)
+      .joins(line_items: :item)
+      .merge(Item.disposable)
+      .sum("line_items.quantity")
+    end
+
     def total_children_served_with_loose_disposables
       organization
       .distributions

spec/services/reports/children_served_report_service_spec.rb

@@ -42,7 +42,6 @@
         create_list(:line_item, 5, :distribution, quantity: 200, item: disposable_item, itemizable: dist)
         create_list(:line_item, 5, :distribution, quantity: 300, item: non_disposable_item, itemizable: dist)
       end
-      # within_time total distributed i
 
       infant_distribution = create(:distribution, organization: organization, issued_at: within_time)
       toddler_distribution = create(:distribution, organization: organization, issued_at: within_time)
@@ -106,4 +105,64 @@
                                   })
     end
   end
+  describe "#disposable_diapers_from_kits_total" do
+    it "calculates the number of disposable diapers that have been distributed within kits this year" do
+      organization = create(:organization)
+
+      # create disposable/ nondisposable base items
+      create(:base_item, name: "Toddler Disposable Diaper", partner_key: "toddler diapers", category: "disposable diaper")
+      create(:base_item, name: "Infant Disposable Diaper", partner_key: "infant diapers", category: "infant disposable diaper")
+      create(:base_item, name: "Infant Cloth Diaper", partner_key: "infant cloth diapers", category: "cloth diaper")
+      create(:base_item, name: "Adult Brief LXL Test", partner_key: "adult lxl test", category: "Diapers - Adult Briefs")
+
+      # create disposable/ nondisposable items
+      toddler_disposable_kit_item = create(:item, name: "Toddler Disposable Diaper", partner_key: "toddler diapers", organization: organization)
+      infant_disposable_kit_item = create(:item, name: "Infant Disposable Diapers", partner_key: "infant diapers", organization: organization)
+      infant_cloth_kit_item = create(:item, name: "Infant Cloth Diapers", partner_key: "infant cloth diapers", organization: organization)
+      adult_brief_kit_item = create(:item, name: "Adult Brief L/XL", partner_key: "adult lxl test", organization: organization)
+
+      # create line items that contain the d/nd items
+      toddler_disposable_line_item = create(:line_item, item: toddler_disposable_kit_item, quantity: 5)
+      infant_disposable_line_item = create(:line_item, item: infant_disposable_kit_item, quantity: 5)
+      infant_cloth_line_item = create(:line_item, item: infant_cloth_kit_item, quantity: 5)
+      adult_brief_line_item = create(:line_item, item: adult_brief_kit_item, quantity: 5)
+
+      # create kits that contain the d/nd line items
+      toddler_disposable_kit = create(:kit, organization: organization, line_items: [toddler_disposable_line_item])
+      infant_disposable_kit = create(:kit, organization: organization, line_items: [infant_disposable_line_item])
+      infant_cloth_kit = create(:kit, organization: organization, line_items: [infant_cloth_line_item])
+      adult_brief_kit = create(:kit, organization: organization, line_items: [adult_brief_line_item])
+
+      # create items which have the kits
+      create(:base_item, name: "Unrelated Base", partner_key: "unrelated base", category: "unrelated base")
+      infant_disposable_dist_item = create(:item, name: "Dist Item 1", organization: organization, partner_key: "unrelated base", kit: toddler_disposable_kit)
+      toddler_disposable_dist_item = create(:item, name: "Dist Item 2", organization: organization, partner_key: "unrelated base", kit: infant_disposable_kit)
+      infant_cloth_dist_item = create(:item, name: "Dist Item 3", organization: organization, partner_key: "unrelated base", kit: infant_cloth_kit)
+      adult_brief_dist_item = create(:item, name: "Dist Item 4", organization: organization, partner_key: "unrelated base", kit: adult_brief_kit)
+
+      within_time = Time.zone.parse("2020-05-31 14:00:00")
+
+      # create empty distributions
+      infant_distribution = create(:distribution, organization: organization, issued_at: within_time)
+      toddler_distribution = create(:distribution, organization: organization, issued_at: within_time)
+      adult_distribution = create(:distribution, organization: organization, issued_at: within_time)
+
+      # add line items to distributions which contain the d/nd kits
+      create(:line_item, quantity: 10, item: toddler_disposable_dist_item, itemizable: toddler_distribution)
+      create(:line_item, quantity: 10, item: infant_disposable_dist_item, itemizable: infant_distribution)
+      create(:line_item, quantity: 10, item: infant_cloth_dist_item, itemizable: infant_distribution)
+      create(:line_item, quantity: 10, item: adult_brief_dist_item, itemizable: adult_distribution)
+
+      service = described_class.new(organization: organization, year: within_time.year)
+
+      # Find distributions, that has a
+      # Line item, that has an
+      # Item, which has a
+      # Kit, which has a
+      # Line item, which has an
+      # Item, which is a disposable diaper.
+      # And then add all those quantities up
+      expect(service.disposable_diapers_from_kits_total).to eq(100)
+    end
+  end
 end