\NeedsTeXFormat{LaTeX2e}[1995/12/01]
\ProvidesPackage{ystikz}
\ifluatex
  \def\pgfsysdriver{pgfsys-luatex.def}
\else
  \def\pgfsysdriver{pgfsys-xetex.def}
\fi
\RequirePackage{tikz}

\usetikzlibrary{matrix}
\usetikzlibrary{positioning}
\usetikzlibrary{fit}
\usetikzlibrary{arrows}
\usetikzlibrary{shapes}
\usetikzlibrary{decorations}
\usetikzlibrary{graphs}
\usetikzlibrary{trees}
\usetikzlibrary{babel}
\usetikzlibrary{shapes.geometric}
\usetikzlibrary{automata}
\tikzset{>=latex}
\ifluatex
  \usetikzlibrary{graphdrawing}
  %
  %% bug de PGF
  %% https://tex.stackexchange.com/a/453157
  \RequirePackage{luacode}
  \begin{luacode*}
  
  function pgf_lookup_and_require(name)
      local sep = package.config:sub(1,1)
      local function lookup(name)
          local sub = name:gsub('%.',sep)  
          if kpse.find_file(sub, 'lua') then
              require(name)
          elseif kpse.find_file(sub, 'clua') then
              collectgarbage('stop') 
              require(name)
              collectgarbage('restart')
          else
              return false
          end
          return true
      end
      return
          lookup('pgf.gd.' .. name .. '.library') or
          lookup('pgf.gd.' .. name) or
          lookup(name .. '.library') or
          lookup(name) 
  end
  
  \end{luacode*}
  %
  %
  \usegdlibrary{layered, force}
\fi

\RequirePackage[external]{forest}
%\tikzexternalize
\forestset{%
  default preamble={
    for tree={
      circle,
      draw,
      inner sep=0pt,
      minimum size=.5cm,
      font=\scriptsize,
      edge=-latex,
      anchor=north
    }
  },
  ssarbre/.style={isosceles triangle, draw, shape border rotate=90, minimum size=.7cm, child anchor=apex, anchor=apex}
}

\tikzstyle{basevertex} = [circle,
      inner sep=0pt,
      minimum size=.5cm,
      font=\scriptsize]

\tikzstyle{vertex} = [basevertex, draw]
      
\tikzstyle{dotvertex} = [vertex]

\tikzset{graphs/every graph/.style={nodes={vertex},
      edges={font=\scriptsize}}}
      
\tikzstyle{dotedgelbl} = [font=\scriptsize]

\tikzstyle{invisiblevertex} = [inner sep = 0pt, outer sep = 0pt, minimum size = 0pt]

\pgfdeclarelayer{background}
\pgfsetlayers{background,main}

\RequirePackage[inputdir=./_build/]{dot2texi}

%%% https://tex.stackexchange.com/a/26386/103608
\usetikzlibrary{intersections}
\tikzset{
  use path for main/.code={%
    \tikz@addmode{%
      \expandafter\pgfsyssoftpath@setcurrentpath\csname tikz@intersect@path@name@#1\endcsname
    }%
  },
  use path for actions/.code={%
    \expandafter\def\expandafter\tikz@preactions\expandafter{\tikz@preactions\expandafter\let\expandafter\tikz@actions@path\csname tikz@intersect@path@name@#1\endcsname}%
  },
  use path/.style={%
    use path for main=#1,
    use path for actions=#1,
  }
}
%%%/

%%% https://tex.stackexchange.com/questions/6135/how-to-make-beamer-overlays-with-tikz-node#6155
%%% voir aussi https://tex.stackexchange.com/questions/99119/beamer-problematic-use-of-visible-and-only-in-combination-with-tikz-to-draw-a#99122
\tikzset{onslide/.code args={<#1>#2}{%
  \only<#1>{\pgfkeysalso{#2}} 
}}

\RequirePackage{pgfplots}
\pgfplotsset{compat=1.15}

\endinput