%!TEX TS-program = xelatex
%!TEX encoding = UTF-8 Unicode

\documentclass[$fontsize$, a4paper]{scrartcl}

% LAYOUT
%--------------------------------
\usepackage{geometry} 
\geometry{$geometry$}
\pagenumbering{gobble}
\usepackage[document]{ragged2e}
\usepackage{scrlayer-scrpage}

% TYPOGRAPHY
%--------------------------------
\usepackage{fontspec} 
\usepackage{xunicode}
\usepackage{xltxtra}

\setlength{\parskip}{1em}

% Command required by how Pandoc handles the list conversion
\providecommand{\tightlist} {
  \setlength{\itemsep}{0pt}\setlength{\parskip}{0pt}
}

% TABLE CUSTOMIZATION
%--------------------------------
\usepackage{spreadtab}
\usepackage[compact]{titlesec}
\usepackage{hhline}
\usepackage{enumitem}
\usepackage{arydshln}

\titlespacing*{\section}{0pt}{3pt}{-7pt}
\renewcommand{\arraystretch}{1.5}
\setlist{nolistsep}
\setlist[itemize]{leftmargin=0.5cm}
\setlength{\tabcolsep}{9pt}


% LANGUAGE
%--------------------------------
$if(lang)$
\usepackage{polyglossia}
\setmainlanguage{german}
$endif$

% PDF SETUP
%--------------------------------
\usepackage[xetex, bookmarks, colorlinks, breaklinks]{hyperref}
\hypersetup
{
  pdfauthor={$author$},
  pdfsubject=Rechnungs Nr. $invoice-nr$,
  pdftitle=Rechnungs Nr. $invoice-nr$,
  linkcolor=blue,
  citecolor=blue,
  filecolor=black,
  urlcolor=blue
}

\usepackage[nodayofweek]{datetime}
\newdate{date}{$date_day$}{$date_month$}{$date_year$}
\date{\displaydate{date}}

% DOCUMENT
%--------------------------------

\ohead{
    \textsc{\textbf{$author$}} \\
    $for(from)$
    \textsc{$from$} \\
    $endfor$
    \textsc{USt-IdNr: $ustid$} \\
    \vspace{1em}
}

\begin{document}

\vspace{1em}

\normalsize \sffamily
$for(to)$
$to$\\
$endfor$

\vspace{6em}

\begin{flushright}
  \small
  $city$, \displaydate{date}
\end{flushright}

\vspace{1em}

\section*{\textsc{Rechnung} \textsc{\#$invoice-nr$}}
\footnotesize
\newcounter{pos}
\setcounter{pos}{0}
\STautoround*{2} % Get spreadtab to always display the decimal part
$if(commasep)$\STsetdecimalsep{,}$endif$ % Use comma as decimal separator

\begin{spreadtab}{{tabular}[t t t]{lp{8.2cm}r}}
  \hdashline[1pt/1pt]
  @ \noalign{\vskip 2mm} \textbf{Pos.} & @ \textbf{Description} & @ \textbf{Prices in $currency$} \\ \hline
      $for(service)$ @ \noalign{\vskip 2mm} \refstepcounter{pos} \thepos 
        & @ $service.description$ 
        $if(service.details)$\newline \begin{itemize} 
          $for(service.details)$\scriptsize \item $service.details$ 
          $endfor$ \end{itemize}
          $endif$ & $service.price$\\$endfor$ \noalign{\vskip 2mm} \hline
  $if(VAT)$
    @ & @ \multicolumn{1}{r}{Subtotal:}                & :={sum(c1:[0,-1])} \\ \hhline{~~-}
    @ & @ \multicolumn{1}{r}{VAT $VAT$\%:}             & $VAT$/100*[0,-1]   \\ \hhline{~~-}
  $else$
    @ & @ \multicolumn{1}{r}{Subtotal:}                & :={sum(c1:[0,-1])} \\ \hhline{~~-}
    @ & @ \multicolumn{1}{r}{USt. Nullregelung:}       & 0                  \\ \hhline{~~-}
  $endif$
  @ & @ \multicolumn{1}{r}{\textbf{Total:}}   & \textbf{:={$if(VAT)$[0,-1]+[0,-2]$else$[0,-2]$endif$}} \\ \hhline{~~-}
\end{spreadtab}

\vspace{15mm}

\sffamily
\small

$post_details$

bitte überweisen Sie den folgenden Betrag in den nächsten 14 Tagen:

\strong{Kontoinhaber}: $author$ \\
\strong{Kreditinstitut}: $bank$ \\
\strong{IBAN}: $bank_iban$ \\
\strong{BIC}: $bank_bic$

Mit freundlichen Grüßen,

\medskip

$author$

\end{document}