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

\ExecuteBibliographyOptions{labelnumber,sortcites,autocite=inline}

\renewcommand*{\multicitedelim}{\addcomma\space}
\renewcommand*{\iffinalcitedelim}{%
  \ifnumequal{\value{textcitecount}}{\value{textcitetotal}-1}}

\providebool{bbx:subentry}
\newbool{cbx:parens}

\newcounter{cbx@tempcnta}
\newcounter{cbx@tempcntb}

\DeclareFieldFormat{entrysetcount}{\mknumalph{#1}}

\newbibmacro*{cite:init}{%
  \global\boolfalse{cbx:parens}%
  \global\undef\cbx@lasthash
  \global\undef\cbx@lastnumber
  \global\undef\cbx@lastprefix
  \setcounter{cbx@tempcnta}{0}%
  \setcounter{cbx@tempcntb}{-2}}

\newbibmacro*{cite:comp}{%
  \addtocounter{cbx@tempcntb}{1}%
  \iffieldundef{shorthand}
    {\ifbool{bbx:subentry}
       {\iffieldundef{entrysetcount}
          {\usebibmacro{cite:comp:comp}}
          {\usebibmacro{cite:comp:inset}}}
       {\usebibmacro{cite:comp:comp}}}
    {\usebibmacro{cite:comp:shand}}}

\newbibmacro*{cite:comp:comp}{%
  \ifboolexpr{
    ( test {\iffieldundef{labelprefix}} and test {\ifundef\cbx@lastprefix} )
    or
    test {\iffieldequals{labelprefix}{\cbx@lastprefix}}
  }
    {\ifnumequal{\thefield{labelnumber}}{\value{cbx@tempcntb}}
       {\savefield{entrykey}{\cbx@lastkey}%
        \savefield{labelnumber}{\cbx@lastnumber}%
        \addtocounter{cbx@tempcnta}{1}}
       {\ifnumequal{\thefield{labelnumber}}{\value{cbx@tempcntb}-1}
          {}
          {\usebibmacro{cite:dump}%
           \ifnumgreater{\value{cbx@tempcntb}}{-1}
             {\multicitedelim}
             {}%
           \printtext[bibhyperref]{%
             \printfield{labelprefix}%
             \printfield{labelnumber}}}}}
    {\usebibmacro{cite:comp:end}}%
  \setcounter{cbx@tempcntb}{\thefield{labelnumber}}%
  \savefield{labelprefix}{\cbx@lastprefix}}

\newbibmacro*{cite:comp:end}{%
  \usebibmacro{cite:dump}%
  \ifnumgreater{\value{cbx@tempcntb}}{-1}
    {\multicitedelim}
    {}%
  \printtext[bibhyperref]{%
    \printfield{labelprefix}%
    \printfield{labelnumber}}}

\newbibmacro*{cite:comp:inset}{%
  \usebibmacro{cite:dump}%
  \ifnumgreater{\value{cbx@tempcntb}}{-1}
    {\multicitedelim}
    {}%
  \printtext[bibhyperref]{%
    \printfield{labelprefix}%
    \printfield{labelnumber}%
    \printfield{entrysetcount}}%
  \setcounter{cbx@tempcntb}{-1}}

\newbibmacro*{cite:comp:shand}{%
  \usebibmacro{cite:dump}%
  \ifnumgreater{\value{cbx@tempcntb}}{-1}
    {\multicitedelim}
    {}%
  \printtext[bibhyperref]{\printfield{shorthand}}%
  \setcounter{cbx@tempcntb}{-1}}

\newbibmacro*{cite:dump}{%
  \ifnumgreater{\value{cbx@tempcnta}}{0}
    {\ifnumgreater{\value{cbx@tempcnta}}{1}
       {\bibrangedash}
       {\multicitedelim}%
     \bibhyperref[\cbx@lastkey]{%
       \ifdef\cbx@lastprefix
         {\printtext[labelprefix]{\cbx@lastprefix}}
         {}%
       \printtext[labelnumber]{\cbx@lastnumber}}}
    {}%
  \setcounter{cbx@tempcnta}{0}%
  \global\undef\cbx@lastprefix}

\newbibmacro*{textcite}{%
  \iffieldequals{namehash}{\cbx@lasthash}
    {\usebibmacro{cite:comp}}
    {\usebibmacro{cite:dump}%
     \ifbool{cbx:parens}
       {\bibclosebracket\global\boolfalse{cbx:parens}}
       {}%
     \iffirstcitekey
       {}
       {\textcitedelim}%
     \usebibmacro{cite:init}%
     \ifnameundef{labelname}
       {\printfield[citetitle]{labeltitle}}
       {\printnames{labelname}}%
     \global\booltrue{cbx:parens}%
     \printdelim{namelabeldelim}\bibopenbracket%
     \ifnumequal{\value{citecount}}{1}
       {\usebibmacro{prenote}}
       {}%
     \usebibmacro{cite:comp}%
     \stepcounter{textcitecount}%
     \savefield{namehash}{\cbx@lasthash}}}

\DeclareCiteCommand{\cite}[\mkbibbrackets]
  {\usebibmacro{cite:init}%
   \usebibmacro{prenote}}
  {\usebibmacro{citeindex}%
   \usebibmacro{cite:comp}}
  {}
  {\usebibmacro{cite:dump}%
   \usebibmacro{postnote}}

\DeclareCiteCommand{\parencite}[\mkbibbrackets]
  {\usebibmacro{cite:init}%
   \usebibmacro{prenote}}
  {\usebibmacro{citeindex}%
   \usebibmacro{cite:comp}}
  {}
  {\usebibmacro{cite:dump}%
   \usebibmacro{postnote}}

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

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

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

\DeclareCiteCommand{\supercite}[\mkbibsuperscript]
  {\usebibmacro{cite:init}%
   \let\multicitedelim=\supercitedelim
   \iffieldundef{prenote}
     {}
     {\BibliographyWarning{Ignoring prenote argument}}%
   \iffieldundef{postnote}
     {}
     {\BibliographyWarning{Ignoring postnote argument}}}
  {\usebibmacro{citeindex}%
   \usebibmacro{cite:comp}}
  {}
  {\usebibmacro{cite:dump}}

\DeclareCiteCommand{\cbx@textcite}
  {\usebibmacro{cite:init}}
  {\usebibmacro{citeindex}%
   \usebibmacro{textcite}}
  {}
  {\usebibmacro{cite:dump}%
   \usebibmacro{postnote}%
   \ifbool{cbx:parens}
     {\bibclosebracket\global\boolfalse{cbx:parens}}
     {}}

\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}[\mkbibbrackets]{\cite}{\multicitedelim}
\DeclareMultiCiteCommand{\parencites}[\mkbibbrackets]{\parencite}{\multicitedelim}
\DeclareMultiCiteCommand{\smartcites}[\iffootnote\mkbibbrackets\mkbibfootnote]
  {\smartcite}{\multicitedelim}

\endinput