Calculate and add VAT (fixed rate for now).

TODO

@@ -5,7 +5,6 @@ ToDo
 * handmatige entries (gekocht item/opdrachtbasis) op factuur
 * factureervlag per entry
 * factuur vastleggen, met samenvatting commentaar
-* btw berekenen
 * uurtarief per project (inherit klant)
 * (configureerbare) factuurnummering (op jaarbasis)
 

stoptime.rb

@@ -35,9 +35,9 @@ unless defined? PUBLIC_DIR
 
   # FIXME: this should be configurable.
   HourlyRate = 20.00
+  VATRate = 19.0
 end
 
-
 module StopTime
 
   def self.create
@@ -476,7 +476,7 @@ module StopTime::Views
         th { "Hourly rate" }
         th { "Amount" }
       end
-      total = 0.0
+      subtotal = 0.0
       @tasks.each do |task, line|
         tr do
           td { task.name }
@@ -484,13 +484,26 @@ module StopTime::Views
           td { "€ %.2f" % line[1] }
           td { "€ %.2f" % line[2] }
         end
-        total += line[2]
+        subtotal += line[2]
+      end
+      tr do
+        td { i "Sub-total" }
+        td ""
+        td ""
+        td { "€ %.2f" % subtotal }
+      end
+      vat = subtotal * VATRate/100
+      tr do
+        td { i "VAT #{VATRate}%" }
+        td ""
+        td ""
+        td { "€ %.2f" % vat }
       end
       tr do
         td { b "Total amount" }
         td ""
         td ""
-        td { "€ %.2f" % total }
+        td { "€ %.2f" % (subtotal + vat) }
       end
     end
   end

templates/invoice.tex.erb

@@ -69,7 +69,7 @@
 \newcommand{\ihsubtotal}[1]{\cmidrule[.0em]{4-4}%
   \textit{Subtotaal}&&&\currency~#1\\}
 \newcommand{\inosubtotal}{&&&\\}
-\newcommand{\ihvat}[1]{\textit{Btw-heffing 19\%}&&&\currency~#1\\}
+\newcommand{\ihvat}[1]{\textit{Btw-heffing <%= VATRate %>\%}&&&\currency~#1\\}
 \newcommand{\ihtotal}[1]{\cmidrule[.05em]{4-4}%
   \textbf{\Totaltext}&&&\textbf{\currency~#1}}
 
@@ -79,16 +79,17 @@
  \hypersetup{pdftitle=\invoicetext\ naar\ \toname\ gedateerd \date\ (\ourref)}
 
  \begin{ihtable}
-  <% total = 0.0 %>
+  <% subtotal = 0.0 %>
   <% tasks.each do |task, line| %>
   \ihitem{<%= task.name %>}{<%= "%.2f" % line[0] %>}%
          {<%= "%.2f" % line[1] %>}{<%= "%.2f" % line[2] %>}
-  <% total += line[2] %>
+  <% subtotal += line[2] %>
   <% end %>
-  %\ihsubtotal{...}
-  \inosubtotal
-  %\ihvat{...}
-  \ihtotal{<%= "%.2f" % total %>}
+  \ihsubtotal{<%= "%.2f" % subtotal %>}
+  %\inosubtotal
+  <% vat = subtotal * VATRate/100 %>
+  \ihvat{<%= "%.2f" % vat %>}
+  \ihtotal{<%= "%.2f" % (subtotal + vat) %>}
  \end{ihtable}
  \vspace{2em}