\ProvidesFile{authortitle-comp.cbx}
[\abx@cbxid]

\ExecuteBibliographyOptions{uniquename,uniquelist,sortcites,autocite=footnote}

\renewcommand*{\iffinalcitedelim}{%
  \ifnameundef{labelname}
    {\ifnumequal{\value{textcitecount}}{\value{textcitetotal}}}
    {\ifnumequal{\value{textcitecount}}{\value{textcitetotal}-1}}}

\newbool{cbx:parens}

\newbibmacro*{cite:init}{%
  \ifnumless{\value{multicitecount}}{2}
    {\global\boolfalse{cbx:parens}%
     \global\undef\cbx@lasthash}
    {\iffieldundef{prenote}
       {}
       {\global\undef\cbx@lasthash}}}

\newbibmacro*{cite:reinit}{%
  \global\undef\cbx@lasthash}

\newbibmacro*{cite}{%
  \iffieldundef{shorthand}
    {\iffieldequals{namehash}{\cbx@lasthash}
       {\setunit{\compcitedelim}}
       {\printnames{labelname}%
        \setunit*{\printdelim{nametitledelim}}%
        \savefield{namehash}{\cbx@lasthash}}%
     \usebibmacro{cite:title}}
    {\usebibmacro{cite:shorthand}%
     \usebibmacro{cite:reinit}}%
  \setunit{\multicitedelim}}

\newbibmacro*{citetitle}{%
  \iffieldundef{shorthand}
    {\usebibmacro{cite:title}}
    {\usebibmacro{cite:shorthand}}%
  \setunit{\multicitedelim}}

\newbibmacro*{textcite}{%
  \iffieldequals{namehash}{\cbx@lasthash}
    {\setunit{\compcitedelim}}
    {\printnames{labelname}%
     \setunit*{%
       \global\booltrue{cbx:parens}%
       \printdelim{nametitledelim}\bibopenparen}%
     \stepcounter{textcitecount}%
     \savefield{namehash}{\cbx@lasthash}}%
  \ifnumequal{\value{citecount}}{1}
    {\usebibmacro{prenote}}
    {}%
  \iffieldundef{shorthand}
    {\usebibmacro{cite:title}}%
    {\usebibmacro{cite:shorthand}}%
  \setunit{%
    \ifbool{cbx:parens}
      {\bibcloseparen\global\boolfalse{cbx:parens}}
      {}%
    \textcitedelim}}

\newbibmacro*{cite:title}{%
  \printtext[bibhyperref]{\printfield[citetitle]{labeltitle}}}

\newbibmacro*{cite:shorthand}{%
  \printtext[bibhyperref]{\printfield{shorthand}}}

\newbibmacro*{textcite:postnote}{%
  \ifnameundef{labelname}
    {\setunit{%
       \global\booltrue{cbx:parens}%
       \extpostnotedelim\bibopenparen}}
    {\setunit{\postnotedelim}}%
  \printfield{postnote}%
  \ifthenelse{\value{multicitecount}=\value{multicitetotal}}
    {\setunit{}%
     \printtext{%
       \ifbool{cbx:parens}
         {\bibcloseparen\global\boolfalse{cbx:parens}}
         {}}}
    {\setunit{%
       \ifbool{cbx:parens}
         {\bibcloseparen\global\boolfalse{cbx:parens}}
         {}%
       \textcitedelim}}}

\DeclareCiteCommand{\cite}
  {\usebibmacro{cite:init}%
   \usebibmacro{prenote}}
  {\usebibmacro{citeindex}%
   \usebibmacro{cite}}
  {}
  {\usebibmacro{postnote}}

\DeclareCiteCommand*{\cite}
  {\usebibmacro{cite:init}%
   \usebibmacro{prenote}}
  {\usebibmacro{citeindex}%
   \usebibmacro{citetitle}}
  {}
  {\usebibmacro{postnote}}

\DeclareCiteCommand{\parencite}[\mkbibparens]
  {\usebibmacro{cite:init}%
   \usebibmacro{prenote}}
  {\usebibmacro{citeindex}%
   \usebibmacro{cite}}
  {}
  {\usebibmacro{postnote}}

\DeclareCiteCommand*{\parencite}[\mkbibparens]
  {\usebibmacro{cite:init}%
   \usebibmacro{prenote}}
  {\usebibmacro{citeindex}%
   \usebibmacro{citetitle}}
  {}
  {\usebibmacro{postnote}}

\DeclareCiteCommand{\footcite}[\mkbibfootnote]
  {\usebibmacro{cite:init}%
   \usebibmacro{prenote}}
  {\usebibmacro{citeindex}%
   \usebibmacro{cite}}
  {}
  {\usebibmacro{postnote}}

\DeclareCiteCommand{\footcitetext}[\mkbibfootnotetext]
  {\usebibmacro{cite:init}%
   \usebibmacro{prenote}}
  {\usebibmacro{citeindex}%
   \usebibmacro{cite}}
  {}
  {\usebibmacro{postnote}}

\DeclareCiteCommand{\smartcite}[\iffootnote\mkbibparens\mkbibfootnote]
  {\usebibmacro{cite:init}%
   \usebibmacro{prenote}}
  {\usebibmacro{citeindex}%
   \usebibmacro{cite}}
  {}
  {\usebibmacro{postnote}}

\DeclareCiteCommand{\cbx@textcite}
  {\usebibmacro{cite:init}}
  {\usebibmacro{citeindex}%
   \usebibmacro{textcite}}
  {}
  {\usebibmacro{textcite:postnote}}

\DeclareCiteCommand{\textcite}[\cbx@textcite@init\cbx@textcite]
  {\gdef\cbx@savedkeys{}%
   \citetrackerfalse%
   \pagetrackerfalse%
   \DeferNextCitekeyHook%
   \usebibmacro{cite:init}}
  {\ifthenelse{\iffirstcitekey\AND\value{multicitetotal}>0}
     {\protected@xappto\cbx@savedcites{()(\thefield{multipostnote})}%
      \global\clearfield{multipostnote}}
     {}%
   \xappto\cbx@savedkeys{\thefield{entrykey},}%
   \iffieldequals{namehash}{\cbx@lasthash}
     {}
     {\stepcounter{textcitetotal}%
      \savefield{namehash}{\cbx@lasthash}}}
  {}
  {\protected@xappto\cbx@savedcites{%
     [\thefield{prenote}][\thefield{postnote}]{\cbx@savedkeys}}}

% textcite has nested \DeclareCiteCommand definitions for textcite and we want to use
% the normal textcite context
\DeclareDelimcontextAlias{cbx@textcite}{textcite}

\newrobustcmd{\cbx@textcite@init}[2]{%
  \setcounter{textcitetotal}{0}%
  \setcounter{textcitecount}{0}%
  \def\cbx@savedcites{#1}#2\cbx@savedcites\empty}

\DeclareMultiCiteCommand{\cbx@textcites}{\cbx@textcite}{}
\DeclareMultiCiteCommand{\textcites}[\cbx@textcites@init\cbx@textcites]{\textcite}{}

\let\cbx@textcites@init\cbx@textcite@init
\pretocmd{\cbx@textcites@init}{\UseNextMultiCiteHook}{}{}

\DeclareMultiCiteCommand{\cites}{\cite}{\setunit{\multicitedelim}}
\DeclareMultiCiteCommand{\parencites}[\mkbibparens]
  {\parencite}{\setunit{\multicitedelim}}
\DeclareMultiCiteCommand{\footcites}[\mkbibfootnote]
  {\footcite}{\setunit{\multicitedelim}}
\DeclareMultiCiteCommand{\footcitetexts}[\mkbibfootnotetext]
  {\footcitetext}{\setunit{\multicitedelim}}
\DeclareMultiCiteCommand{\smartcites}[\iffootnote\mkbibparens\mkbibfootnote]
  {\smartcite}{\setunit{\multicitedelim}}

\endinput