add tax rates report

app/controllers/spree/admin/reports_controller_decorator.rb

@@ -159,6 +159,7 @@ Spree::Admin::ReportsController.class_eval do
   def sales_tax
     prepare_date_params params
     @distributors = Enterprise.is_distributor.managed_by(spree_current_user)
+    @report_type = params[:report_type]
 
     @report = OpenFoodNetwork::SalesTaxReport.new spree_current_user, params
 

app/views/spree/admin/reports/sales_tax.html.haml

@@ -5,9 +5,15 @@
     .four.columns.alpha
       = label_tag nil, t(:report_distributor)
       = f.collection_select(:distributor_id_eq, @distributors, :id, :name, {:include_blank => 'All'}, {:class => "select2 fullwidth"})
+  = label_tag nil, t(:report_customers_type)
+  %br
+  = select_tag(:report_type, options_for_select([[t(:report_tax_rates),:tax_rates],[t(:report_tax_types),:tax_types]], @report_type))
+  %br
+  %br
   = check_box_tag :csv
   = label_tag :csv, t(:report_customers_csv)
   %br
+  %br
   = button t(:search)
 
 %br

config/locales/en.yml

@@ -1343,6 +1343,8 @@ Please follow the instructions there to make your enterprise visible on the Open
   report_order_cycle: "Order Cycle: "
   report_entreprises: "Enterprises: "
   report_users: "Users: "
+  report_tax_rates: "Tax rates"
+  report_tax_types: "Tax types"
   initial_invoice_number: "Initial invoice number:"
   invoice_date: "Invoice date:"
   due_date: "Due date:"

config/locales/fr.yml

@@ -1225,6 +1225,8 @@ fr:
   report_order_cycle: "Cycle de vente:"
   report_entreprises: "Entreprises:"
   report_users: "Managers:"
+  report_tax_rates: "Taxes par taux"
+  report_tax_types: "Taxes par type"
   initial_invoice_number: "N° de facture initial:"
   invoice_date: "Date de facture:"
   due_date: "Date d'échéance:"

lib/open_food_network/sales_tax_report.rb

@@ -9,9 +9,16 @@ module OpenFoodNetwork
     end
 
     def header
-      ["Order number", "Date", "Items", "Items total (#{currency_symbol})", "Taxable Items Total (#{currency_symbol})",
-        "Sales Tax (#{currency_symbol})", "Delivery Charge (#{currency_symbol})", "Tax on Delivery (#{currency_symbol})", "Tax on Fees (#{currency_symbol})",
-        "Total Tax (#{currency_symbol})", "Customer", "Distributor"]
+      case params[:report_type]
+      when "tax_types"
+        ["Order number", "Date", "Items", "Items total (#{currency_symbol})", "Taxable Items Total (#{currency_symbol})",
+          "Sales Tax (#{currency_symbol})", "Delivery Charge (#{currency_symbol})", "Tax on Delivery (#{currency_symbol})", "Tax on Fees (#{currency_symbol})",
+          "Total Tax (#{currency_symbol})", "Customer", "Distributor"]
+      else
+        ["Order number", "Total excl. VAT"] +
+          relevant_rates.map { |rate| "%s (%.1f%%)" % [rate.name, rate.amount.to_f * 100] } +
+          ["Total VAT", "Total incl. VAT"]
+      end
     end
 
     def search
@@ -24,19 +31,39 @@ module OpenFoodNetwork
     end
 
     def table
-      orders.map do |order|
-        totals = totals_of order.line_items
-        shipping_cost = shipping_cost_for order
+      case params[:report_type]
+      when "tax_types"
+        orders.map do |order|
+          totals = totals_of order.line_items
+          shipping_cost = shipping_cost_for order
 
-        [order.number, order.created_at, totals[:items], totals[:items_total],
-         totals[:taxable_total], totals[:sales_tax], shipping_cost, order.shipping_tax, order.enterprise_fee_tax, order.total_tax,
-         order.bill_address.full_name, order.distributor.andand.name]
+          [order.number, order.created_at, totals[:items], totals[:items_total],
+           totals[:taxable_total], totals[:sales_tax], shipping_cost, order.shipping_tax, order.enterprise_fee_tax, order.total_tax,
+           order.bill_address.full_name, order.distributor.andand.name]
+        end
+      else
+        orders.map do |order|
+          [order.number, order.total - order.total_tax] +
+            relevant_rates.map { |rate| order.tax_adjustment_totals.fetch(rate, 0) } +
+            [order.total_tax, order.display_total]
+        end
       end
+
     end
 
 
     private
 
+    def relevant_rates
+      queries = [ search.result.joins(:line_items => {:adjustments => :tax_rate}).select('spree_tax_rates.*').uniq,
+                  search.result.joins(:adjustments => :tax_rate).select('spree_tax_rates.*').uniq ]
+      queries.map do |query|
+        ActiveRecord::Base.connection.select_all(query)
+      end.sum.map do
+        |tax_rate| Spree::TaxRate.new(tax_rate, without_protection: true)
+      end
+    end
+
     def totals_of(line_items)
       totals = {items: 0, items_total: 0.0, taxable_total: 0.0, sales_tax: 0.0}