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% ENVIRONMENTS
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%% definition
%%
\RenewDocumentEnvironment{definition}{ s D<>{Définition} o }{
  \setbeamercolor*{block title}{parent=definition}
  \IfBooleanTF {#1} {
    % if starred: with logo
    \IfNoValueTF {#3} {
      % if no subtitle
      \begin{block} {\faPencil \hspace{.125em}\ #2}
    }{
      % if subtitle
      \begin{block} {\faPencil \hspace{.125em}\
                     #2 \hfill{\normalfont\slshape#3}}
    }
  }{
    % if not starred: without logo
    \IfNoValueTF {#3} {
      % if no subtitle
      \begin{block} {#2}
    }{
      % if subtitle
      \begin{block} {#2 \hfill{\normalfont\slshape#3}}
    }
  }
}{
  \end{block}
}

%% theoreme
%%
\NewDocumentEnvironment{theoreme}{ s o }{
  \setbeamercolor*{block title}{parent=theoreme}
  \IfBooleanTF {#1} {
    % if starred: with logo
    \IfNoValueTF {#2} {
      % if no subtitle
      \begin{block} {\faPencil \hspace{.125em}\ Théorème}
    }{
      % if subtitle
      \begin{block} {\faPencil \hspace{.125em}\
                     Théorème \hfill{\normalfont\slshape#2}}
    }
  }{
    % if not starred: without logo
    \IfNoValueTF {#2} {
      % if no subtitle
      \begin{block} {Théorème}
    }{
      % if subtitle
      \begin{block} {Théorème \hfill{\normalfont\slshape#2}}
    }
  }
}{
  \end{block}
}

%% propriete
%%
\NewDocumentEnvironment{propriete}{ s o }{
  \setbeamercolor*{block title}{parent=propriete}
  \IfBooleanTF {#1} {
    % if starred: with logo
    \IfNoValueTF {#2} {
      % if no subtitle
      \begin{block} {\faPencil \hspace{.125em}\ Propriété}
    }{
      % if subtitle
      \begin{block} {\faPencil \hspace{.125em}\
                     Propriété \hfill{\normalfont\slshape#2}}
    }
  }{
    % if not starred: without logo
    \IfNoValueTF {#2} {
      % if no subtitle
      \begin{block} {Propriété}
    }{
      % if subtitle
      \begin{block} {Propriété \hfill{\normalfont\slshape#2}}
    }
  }
}{
  \end{block}
}

%% demonstration
%%
\NewDocumentEnvironment{demonstration}{ s o }{
  \setbeamercolor*{block title}{parent=demonstration}
  \IfBooleanTF {#1} {
    % if starred: with logo
    \IfNoValueTF {#2} {
      % if no subtitle
      \begin{block} {\faPencil \hspace{.125em}\ Démonstration}
    }{
      % if subtitle
      \begin{block} {\faPencil \hspace{.125em}\
                     Démonstration \hfill{\normalfont\slshape#2}}
    }
  }{
    % if not starred: without logo
    \IfNoValueTF {#2} {
      % if no subtitle
      \begin{block} {Démonstration}
    }{
      % if subtitle
      \begin{block} {Démonstration \hfill{\normalfont\slshape#2}}
    }
  }
}{
  \end{block}
}

%% vocabulaire
%%
\NewDocumentEnvironment{vocabulaire}{ s o }{
  \setbeamercolor*{block title}{parent=vocabulaire}
  \IfBooleanTF {#1} {
    % if starred: without title
    \IfNoValueTF {#2} {
      % if no subtitle
      \begin{block} {}
    }{
      % if subtitle
      \begin{block} {\normalfont\slshape#2}
    }
  }{
    % if not starred: with title
    \IfNoValueTF {#2} {
      % if no subtitle
      \begin{block} {Vocabulaire}
    }{
      % if subtitle
      \begin{block} {Vocabulaire \hfill{\normalfont\slshape#2}}
    }
  }
}{
  \end{block}
}

%% remarque
%%
\NewDocumentEnvironment{remarque}{ s o }{
  \setbeamercolor*{block title}{parent=remarque}
  \IfBooleanTF {#1} {
    % if starred: without title
    \IfNoValueTF {#2} {
      % if no subtitle
      \begin{block} {\faExclamationTriangle \hspace{.125em}}
    }{
      % if subtitle
      \begin{block} {\faExclamationTriangle \hspace{.125em}\
                     \hfill{\normalfont\slshape#2}}
    }
  }{
    % if not starred: with title
    \IfNoValueTF {#2} {
      % if no subtitle
      \begin{block} {\faExclamationTriangle \hspace{.125em}\ Remarque(s)}
    }{
      % if subtitle
      \begin{block} {\faExclamationTriangle \hspace{.125em}\
                     Remarque(s) \hfill{\normalfont\slshape#2}}
    }
  }
}{
  \end{block}
}

%% exemple
%%
\NewDocumentEnvironment{exemple}{ s o }{
  \setbeamercolor*{block title}{parent=exemple}
  \IfBooleanTF {#1} {
    % if starred: without title
    \IfNoValueTF {#2} {
      % if no subtitle
      \begin{block} {\faEye \hspace{.125em}}
    }{
      % if subtitle
      \begin{block} {\faEye \hspace{.125em}\
                     \hfill{\normalfont\slshape#2}}
    }
  }{
    % if not starred: with title
    \IfNoValueTF {#2} {
      % if no subtitle
      \begin{block} {\faEye \hspace{.125em}\ Exemple(s)}
    }{
      % if subtitle
      \begin{block} {\faEye \hspace{.125em}\
                     Exemple(s) \hfill{\normalfont\slshape#2}}
    }
  }
}{
  \end{block}
}

%% application
%%
\NewDocumentEnvironment{application}{ o }{
  \setbeamercolor*{block title}{parent=application}

  \IfNoValueTF {#1} {
    % if no subtitle
    \begin{block} {\faCogs \hspace{.125em} Application}
  }{
    % if subtitle
    \begin{block} {\faCogs \hspace{.125em}\ #1}
  }
}{
  \end{block}
}

%% commentaire
%%
\NewDocumentEnvironment{commentaire}{ s }{
  \setbeamercolor*{block title}{parent=commentaire}

  \IfBooleanTF {#1} {
    % with logo
    \begin{block} {\faQuoteLeft \hspace{.125em}}
  }{
    % without logo
    \begin{block} {}
  }
}{
  \end{block}
}

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