\documentclass[12pt,a4paper]{article}

\usepackage{lmodern}
\usepackage[dvipsnames]{xcolor}
\usepackage[
  unicode=true,
  colorlinks=true,
  urlcolor=blue,
  linkcolor=black,
  citecolor=black,
]{hyperref}
\usepackage[utf8]{inputenc}
\usepackage[T1]{fontenc}
% remove tab from new line
\usepackage[parfill]{parskip}
% allow pictures to be used
\usepackage{graphicx}

\linespread{1.5}

$for(include-before)$
  $include-before$
$endfor$

% MACROS
\newcommand{\todo}[1]{
  \centerline{
    \colorbox{YellowOrange}{\textbf{To-do} #1}
  }
  \vspace{0.5cm}
}

% BIBLATEX
$if(bibliography)$
  \usepackage[
    style=authoryear-ibid,
    backend=biber,
  ]{biblatex}
  \addbibresource{$bibliography$}
$endif$

\begin{document}

$if(title)$
  \begin{titlepage}

  \title{$title$}
  $if(author)$
    \author{$author$}
  $endif$
  \maketitle
  \thispagestyle{empty}

  \end{titlepage}
  \newpage
$endif$

% TOC
$if(toc)$
  $if(toc-title)$
    \renewcommand\contentsname{$toc-title$}
  $endif$
  \tableofcontents
  \newpage
$endif$

$body$

$if(bibliography)$
  $if(bibliography-title)$
    \renewcommand\refname{$bibliography-title$}
  $endif$
  \newpage
  \printbibliography
$endif$

\end{document}

$for(include-after)$
  $include-after$
$endfor$