% (The MIT License)
%
% Copyright (c) 2021-2022 Yegor Bugayenko
%
% 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.

\NeedsTeXFormat{LaTeX2e}
\ProvidesPackage{clicks}[2022/09/13 0.3.1 Clicks]

\RequirePackage{xkeyval}
\RequirePackage{etoolbox}

\makeatletter\newif\ifclicks@static\makeatother
\makeatletter\DeclareOption{static}{\clicks@statictrue}\makeatother
\ProcessOptions\relax

\makeatletter\newcommand*\clicks@body{}\makeatother
\makeatletter\newcommand\clicks@flush{%
  \clicks@body\vspace*{0pt}\newpage%
}\makeatother

\newcounter{minutes}

% Print the content as is.
\makeatletter\newcommand\print[1]{%
  \gappto\clicks@body{{#1\par}}%
}\makeatother

% Flush the page: print the entire content.
\makeatletter\newcommand\flush[1][1]{%
  \ifx\clicks@body\empty\else%
    \clicks@flush%
    \renewcommand*\clicks@body{}%
  \fi%
  \ifclicks@static\else%
    \addtocounter{minutes}{#1}%
  \fi%
}

% Print the content and wait for more.
\makeatletter\newcommand\click[1][0]{%
  \ifclicks@static\else%
    \addtocounter{minutes}{#1}%
  \fi%
  \ifclicks@static\else%
    \clicks@flush%
  \fi%
}\makeatother

% Print and flush
% [1]: How many minutes to stay here
% {1}: The content to print
\newcommand\plush[2][1]{%
  \print{#2}%
  \flush[#1]%
}

% Print and click
% [1]: How many minutes to stay here
% {1}: The content to print
\newcommand\plick[2][1]{%
  \print{#2}%
  \click[#1]%
}

\endinput