\newcommand{\Signatur}{FIF}
\newcommand{\Schule}{Hans-Sachs-Gymnasium}
\newcommand{\LogoSchule}{images/logos/HSG.png}

\newtcolorbox{wiederholung}[1]{colback=orange!5!white,colframe=orange!75!black,fonttitle=\bfseries,title=Wiederholung: #1}

\newcommand\kariert[2][0.5cm]{% 
   \begin{tikzpicture}[gray,step=#1]
     \pgfmathtruncatemacro\anzahl{(\linewidth-\pgflinewidth)/#1} % maximale Anzahl Kästchen pro Zeile
     \draw (0,0) rectangle (\anzahl*#1,#2*#1) (0,0) grid (\anzahl*#1,#2*#1);
   \end{tikzpicture} 
}

\newcommand{\liniert}[2][9mm]{% 
  \begin{tikzpicture}[gray]
  \path[use as bounding box](0,0)rectangle(\linewidth,-#2*#1-0.5\pgflinewidth); 
   \foreach \n in {1,...,#2}\draw(0 ,-#1*\n )--(\linewidth,-#1*\n ); 
  \end{tikzpicture}
}

\newcommand{\iflehrer}[2]{\iftoggle{lehrerversion}{#1}{#2}}

\newcommand{\solution}[1]{\iftoggle{lehrerversion}{#1}{\textcolor{white}{#1}}}
\newcommand{\psolution}[1]{\iftoggle{lehrerversion}{#1}{\phantom{#1}}}

\ifluatex
  \newcommand{\gap}[1]{\underLine{\solution{#1}}}
  \newcommand{\pgap}[1]{\underLine{\psolution{#1}}}
\else
  \newcommand{\gap}[1]{\uline{\solution{#1}}}
  \newcommand{\pgap}[1]{\uline{\psolution{#1}}}
\fi

\newtoggle{betable}

\newcommand{\beTabelle}[1][3cm]{%
\toggletrue{betable}
\iftoggle{lehrerversion}{}{
  \centering
  \begin{tikzpicture}[cell/.style={draw, minimum height=1cm, minimum width=#1}]
    \node [cell] at (1,0) {Aufgabe};
    \node [cell] at (1,-1) {BEs};
    \node [cell] at (1,-2) {$\sum$\hspace{#1*2/3}~};
    \foreach \x [count=\xi] in {1,...,\theAufg}{%
      \node [cell] at ([shift={(1,0)}]\xi*#1,0) {\xi};
      \node [cell] at ([shift={(1,-1)}]\xi*#1,0) {\ref{a:\xi}};
      \node [cell] at ([shift={(1,-2)}]\xi*#1,0) {};
  }
  \end{tikzpicture}
}
}

% Point distribution across subtasks
\newcommand{\Verteilung}{}

\newcounter{Aufg}
\newenvironment{Aufg}[1][]
{
\refstepcounter{Aufg}%
\noindent\textbf{Aufgabe \theAufg\ifstrempty{#1}{}{\ #1}:%
\ifdefempty{\Verteilung}{}{\  \Verteilung{} BE} \hfill \iftoggle{vaguebe}{ca. }{/}\ref{a:\theAufg} \ BE}%
\newline
}{%
\ifdefempty{\Verteilung}%
  {\setcounter{distSum}{-1}}%
  {\setcounter{distSum}{\fpeval{\Verteilung}}}%
\renewcommand{\Verteilung}{}% reset the distribution after each exercise
\global\let\Verteilung\Verteilung%
}

% Total amount of point * 2 in order to track half points in an integer counter
\newcounter{be} % Total amount of points in the document
\newcounter{beA}[Aufg] % Amount of point in the current exercise
\newcounter{beAManuell} % Counter to manually override the points in the current exercise
\setcounter{beAManuell}{-1}

\newcounter{distSum} % Counter to check the sum of the point distribution
\setcounter{distSum}{-1}

\newcommand{\BE}[1]{%
\iftoggle{erwartungshorizont}{% Typeset the points only if we are creating a horizon of expectation
#1 BE}{}% TODO: better typesetting
\addtocounter{beA}{\fpeval{#1*2}}}

\newcommand{\PointSymbol}{%
\iftoggle{erwartungshorizont}{% Typeset the checkmark only if we are creating a horizon of expectation
  \tikz[scale=0.23, overlay, remember picture] {
    \draw[line width=0.7, line cap=round] (0.25, 1) to [bend left=10] (1,2);
    \draw[line width=0.8, line cap=round] (0, 1.35) to [bend right=1] (0.23,1);
  }
}{}
}

\newcommand{\Point}{%
\PointSymbol
\addtocounter{beA}{2}
}

\newcommand{\HalfpointSymbol}{%
\iftoggle{erwartungshorizont}{% Typeset the checkmark only if we are creating a horizon of expectation
  \tikz[scale=0.23, overlay, remember picture] {
    \draw[line width=0.7, line cap=round] (0.25, 1) to [bend left=10] (1,2);
    \draw[line width=0.7, line cap=round] (0.5, 1.75) to (0.75,1.25);
    \draw[line width=0.8, line cap=round] (0, 1.35) to [bend right=1] (0.23,1);
  }
}{}
}

\newcommand{\Halfpoint}{%
\HalfpointSymbol
\addtocounter{beA}{1}
}

\newcommand{\AnzahlInsgesamtPunkte}{\fpeval{\value{be} / 2}}

% Manually override the points
\newcommand{\AnzahlPunkte}[1]{\setcounter{beAManuell}{\fpeval{#1*2}}}

\newenvironment{Lsg}[1][]
{%
\iftoggle{lehrerversion}{%
\noindent\textbf{Lösung:}\ \iftoggle{erwartungshorizont}{#1 \\}{}
}{%
\begin{adjustbox}{max height=0cm, minipage=[0pt]{\textwidth},frame,phantom}
}%
}%
{%end_def
\iftoggle{lehrerversion}{}{\end{adjustbox}\vspace{-0.5\baselineskip}}
% Overwrite the beA counter
\ifnumcomp{\arabic{beAManuell}}{>}{-1}%
{\setcounter{beA}{\value{beAManuell}}}%
{}
\setcounter{beAManuell}{-1}
% Sum up all points
\addtocounter{be}{\value{beA}}
% Persist the current exercise count
\setcounter{beA}{\fpeval{\value{beA} / 2}}%
\addtocounter{beA}{-1}% decrement beA count because refstepcounter will increment it
\refstepcounter{beA}% make the beA available for the ref and label mechanisms
\expandafter\label{a:\theAufg}% create a label for this exercise
\ifnumgreater{\thedistSum}{-1}{%
  \ifnumequal{\thedistSum}{\thebeA}{}{%
    \errmessage{Aufg \theAufg: \noexpand\Verteilung (\thedistSum) and point count (\thebeA) are not equal}%
  }%ifnumequal
}{}%ifnumfreater
}

\newtheoremstyle{Bearbeitung}% name of the style to be used
{0pt}% measure of space to leave above the theorem. E.g.: 3pt
{25pt}% measure of space to leave below the theorem. E.g.: 3pt
{}% name of font to use in the body of the theorem
{}% measure of space to indent
{}% name of head font
{}% punctuation between head and body
{ }% space after theorem head; " " = normal interword space
{\thmname{#1}}

\theoremstyle{Bearbeitung}
\newtheorem{Bearbeitung}{}

\newcommand{\Lehrerversion}{\excludecomment{Bearbeitung}}
\newcommand{\Schuelerversion}{\togglefalse{lehrerversion}}

\iftoggle{lehrerversion}{
  \Lehrerversion
}{
}

% Add new paired delimiter 'abs' using mathtools
\DeclarePairedDelimiter\abs{\lvert}{\rvert}%

\newcommand{\dist}[1]{\abs{\overline{#1}}}

% Commands to determine the remaining hsize of a line
% See: https://tex.stackexchange.com/questions/17349/is-there-a-way-to-measure-the-remaining-space-of-a-line-of-text
\newcommand{\currentsidemargin}{%
  \ifodd\value{page}%
    \oddsidemargin%
  \else%
    \evensidemargin%
  \fi%
}

\newlength{\whatsleft}

\newcommand{\measureremainder}[1]{%
\begin{tikzpicture}[overlay,remember picture]
    % Helper nodes
    \path (current page.north west) ++(\hoffset, -\voffset)
        node[anchor=north west, shape=rectangle, inner sep=0, minimum width=\paperwidth, minimum height=\paperheight]
        (pagearea) {};


    \path (pagearea.north west) ++(1in+\currentsidemargin,-1in-\topmargin-\headheight-\headsep)
        node[anchor=north west, shape=rectangle, inner sep=0, minimum width=\textwidth, minimum height=\textheight]
        (textarea) {};

    % Measure distance to right text border
    \path let \p0 = (0,0), \p1 = (textarea.east) in
        [/utils/exec={\pgfmathsetlength#1{\x1-\x0}\global#1=#1}];

\end{tikzpicture}%
}

\newcommand{\ruletoend}[1]{\measureremainder{\whatsleft}\rule{\whatsleft}{#1}}

\newtcolorbox{defbox}[1]{breakable, enhanced, colback=orange!5!white,colframe=orange!75!black,title=#1}

\newtcolorbox{merke}{
  coltitle=white,
  colbacktitle=orange!80!black,
  colback=white,% TODO: support bg from beamer theme
  colframe=orange!80!black,
  enhanced,
  title=\bfseries {\large M}ERKE,
  attach boxed title to top right={yshift=-0.28cm, xshift=-5mm},
  frame code={
    \draw[
      decorate,
      decoration={random steps, segment length=5mm, amplitude=0.6pt},
      draw=orange!80!black,
    ] (frame.north east) rectangle (frame.south west);
  },
}

\newtcolorbox{pseudocode}{
  coltitle=white,
  colbacktitle=gray!30!black,
  colback=white,% TODO: support bg from beamer theme
  colframe=gray!30!black,
  enhanced,
  title=\bfseries {\large P}SEUDOCODE,
  attach boxed title to top right={yshift=-0.28cm, xshift=-5mm},
  frame code={
    \draw[
      decorate,
      decoration={random steps, segment length=5mm, amplitude=0.6pt},
      draw=gray!30!black,
    ] (frame.north east) rectangle (frame.south west);
  },
}


\newcommand{\boldred}[1]{\textcolor{red}{\textbf{#1}}}
\newcommand{\boldgreen}[1]{\textcolor{green!70!black}{\textbf{#1}}}