%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%
% Copyright © 2022 Maximilian Keßler
% 
% This work may be distributed and/or modified
% 
% 1. under the LaTeX Project Public License and/or
% 2. under the GNU General Public License
% 
% Distribution under conditions of the LaTeX Project Public License,
% requires either version 1.3 of this license or (at your option)
% any later version.
% The latest version of this license is in
%    http://www.latex-project.org/lppl.txt
% and version 1.3 or later is part of all distributions of LaTeX
% version 2005/12/01 or later.
% 
% This work has the LPPL maintenance status \`maintained'.
% 
% The Current Maintainer of this work is Maximilian Keßler.
% 
% 
% Distribution under the GNU General Public License requires either
% version 3 or (at your opinion) any later version.
% 
% This class has been generated by PyTeX, available at
%    https://github.com/kesslermaximilian/PyTeX
% and built from source file 'script.pycls'.
% It is STRONGLY DISCOURAGED to edit this source file directly, since local
% changes will not be versioned by Git and overwritten by the next build. Always
% edit the source file and build the class again.
% 
% Build details:
%   PyTeX version: v1.2.0-31-gc9bb0e8 (commit c9bb0e8)
%   Source code version: same-aux-files (commit 7a35a13)
% 
% This LaTeX class is free software and is dual-licensed
% under the LPPLv1.3c and the GPLv3 licenses.
% You may use it freely for your purposes.
% The latest version of the class sources can be obtained
% via GitLab under
%    https://gitlab.com/latexci/packages/LatexPackages
% The latest version of the built packages can be obtained via GitLab under
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% Reportings of bugs, suggestions and improvements are welcome, see the README
% at the Git repository for further information.
%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%

\NeedsTeXFormat{LaTeX2e}
\ProvidesClass{mkessler-script}[2022/02/03 - Write up lecture notes as script]



\RequirePackage{xkeyval}

\newif\ifmkessler@script@english\mkessler@script@englishtrue
\DeclareOptionX{german}{\mkessler@script@englishfalse}
\DeclareOptionX{ngerman}{\mkessler@script@englishfalse}
\DeclareOptionX{english}{\mkessler@script@englishtrue}

\newif\ifmkessler@script@showversion\mkessler@script@showversiontrue
\DeclareOptionX{show version}{\mkessler@script@showversiontrue}
\DeclareOptionX{hideversion}{\mkessler@script@showversionfalse}

\newif\ifmkessler@script@fancyfoot\mkessler@script@fancyfootfalse
\DeclareOptionX{fancyfoot}{\mkessler@script@fancyfoottrue}


\newif\ifmkessler@script@gitversion\mkessler@script@gitversionfalse
\DeclareOptionX{git}{\mkessler@script@gitversiontrue}

\DeclareOptionX*{\ClassWarning{mkessler-script}{Unknown '\CurrentOption'}}
\ProcessOptionsX*\relax


\RequirePackage{xifthen}

%%%%Define command to set metainformation of document
%Set the course
\def\@course{\ClassError{mkessler-script}{No \noexpand\course given}{See documentation for details}}%
\DeclareRobustCommand*{\course}[1]{\gdef\@course{#1}}

\def\@lecturer{\ClassError{mkessler-script}{No \noexpand\lecturer given}{See documentation for details}}%
\def\@lecturertitle{}
\DeclareRobustCommand*{\lecturer}[2][]{
    \gdef\@lecturer{#2}
    \gdef\@lecturertitle{\ifmkessler@script@english Lecturer\else\ifthenelse{\isempty{#1}}{Dozent}{Dozentin}\fi}{}
}

%Set the assistant
\newif\ifmkessler@script@printassistant\mkessler@script@printassistantfalse
\def\@assistant{}%
\def\@assistantitle{}
\DeclareRobustCommand*{\assistant}[2][]{
    \mkessler@script@printassistanttrue
    \gdef\@assistant{#2}
    \gdef\@assistanttitle{\ifmkessler@script@english Assistant\else\ifthenelse{\isempty{#1}}{Assistent}{Assistentin}\fi}
}

%%%%Load base class article
\LoadClass{article}

\ifmkessler@script@showversion
    \ifmkessler@script@gitversion
        \RequirePackage[dirty={ (local changes have been made!)}]{gitinfo2}
    \fi
\fi


%%%%Title
%Define layout of title using course, lecturer, assistant and author, and optionally the current time
\RequirePackage{xparse}
\RequirePackage{datetime}
\renewcommand\@maketitle{%
  \newpage
  \null
  \vskip 2em%
  \begin{center}%
  \let \footnote \thanks
    {\LARGE \@course \par}%
    \vskip 1.5em%
    {\large
      \lineskip .5em%
      \begin{tabular}[t]{c}%
        \@lecturertitle \\
        {\sc \@lecturer} \\
      \end{tabular}\par
    \ifmkessler@script@printassistant
    \vskip 1em%
        \begin{tabular}[t]{c}%
        \@assistanttitle \\
        {\sc \@assistant} \\
        \end{tabular}\par
    \fi
    \vskip 1em%
        \begin{tabular}[t]{c}%
        \ifmkessler@script@english Notes\else Mitschrift\fi \\
        {\sc \@author} \\
        \end{tabular}
        \par}%
    \ifmkessler@script@showversion
    \vskip 3em%
        \begin{tabular}[t]{c}%
        {\small Version} \\
        \ifmkessler@script@gitversion
            git: \gitFirstTagDescribe\\
            \ifmkessler@script@english compiled\else kompiliert\fi:
        \fi\today\,\currenttime \\
        \end{tabular}\par
    \fi
    \vskip 4em%
  \end{center}%
  \par
  \vskip 1.5em
}


%%%The following is based on the repository
% https://github.com/gillescastel/university-setup
% but has been modified for own purposes. The original content is distributed under the following license:

%MIT License

%Copyright (c) 2019 Gilles Castel

%Permission is hereby granted, free of charge, to any person obtaining a copy
%of this software and associated documentation files (the "Software"), to deal
%in the Software without restriction, including without limitation the rights
%to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
%copies of the Software, and to permit persons to whom the Software is
%furnished to do so, subject to the following conditions:
%
%The above copyright notice and this permission notice shall be included in all
%copies or substantial portions of the Software.
%
%THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
%IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
%FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
%AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
%LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
%OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE
%SOFTWARE.

%%%% These are the fancy headers

\ifmkessler@script@fancyfoot
    \RequirePackage{fancyhdr}
    \pagestyle{fancy}

    % LE: left even
    % RO: right odd
    % CE, CO: center even, center odd

    \fancyhead[RO,LE]{} % Right odd,  Left even
    \fancyhead[RE,LO]{}          % Right even, Left odd

    \fancyfoot[RO,LE]{\thepage}  % Right odd,  Left even
    \fancyfoot[RE,LO]{}          % Right even, Left odd
    \fancyfoot[C]{\leftmark}     % Center

    \makeatother

\fi

% Fix some stuff
% %http://tex.stackexchange.com/questions/76273/multiple-pdfs-with-page-group-included-in-a-single-page-warning
\pdfsuppresswarningpagegroup=1

% Fix some spacing
% http://tex.stackexchange.com/questions/22119/how-can-i-change-the-spacing-before-theorems-with-amsthm
\def\thm@space@setup{%
  \thm@preskip=\parskip \thm@postskip=0pt
}

% Don't indent paragraphs, leave some space between them
\RequirePackage{parskip}

% Hide page number when page is empty
\RequirePackage{emptypage}