% -----------------------------------------------------------------------------
% LeibnizFH LaTeX-Klasse v1.1.1WIP

% Erstellt von: F. L. Werner
% Datum: 27.01.2026
%
% Beschreibung:
% Erstellt nach den Hochschulvorgaben (s. Datum). Angaben ohne Gewähr.
% Beiträge und Verbesserungen sind willkommen - viel Spaß beim Nutzen!
%
% Repository / Versionierung: http://gitea.wernerslab.work/hxf1302/leibnizfh-tex
%
%% leibnizfh.cls
%% Copyright 2026 F. L. Werner
%
% This work may be distributed and/or modified under the
% conditions of the LaTeX Project Public License, either version 1.3
% of this license or (at your option) any later version.
% The latest version of this license is in
%   http://www.latex-project.org/lppl.txt
% and version 1.3 or later is part of all distributions of LaTeX
% version 2005/12/01 or later.
%
% This work has the LPPL maintenance status `maintained'.
% 
% The Current Maintainer of this work is F. L. Werner.
%
% This work consists of the file leibnizfh.cls
% -----------------------------------------------------------------------------

\NeedsTeXFormat{LaTeX2e}

\ProvidesClass{leibnizfh}[2026/01/21 v1.1.1WIP Leibniz FH Dokumentenklasse]

% Eigene Klassenoptionen:
\newif\if@ngerman
\newif\if@german
\newif\if@english
\newif\iflfh@plaintitle
\newif\if@truetitle

\@truetitlefalse
\@ngermanfalse
\@germanfalse
\@englishfalse

\DeclareOption{plaintitle}{%
	\lfh@plaintitletrue
}
\DeclareOption{truetitle}{%
	\@truetitletrue
}
\DeclareOption{ngerman}{%
	\ClassWarning{leibnizfh}{Option 'ngerman' is deprecated. Use \protect\selectlanguage{german} in the document body instead}%
	\@ngermantrue
	\@germanfalse
	\@englishfalse
}
\DeclareOption{german}{%
	\ClassWarning{leibnizfh}{Option 'german' is deprecated. Use \protect\selectlanguage{german} in the document body instead}%
	\@germantrue
	\@ngermanfalse
	\@englishfalse
}
\DeclareOption{english}{%
	\ClassWarning{leibnizfh}{Option 'english' is deprecated. Use \protect\selectlanguage{english} in the document body instead}%
	\@englishtrue
	\@ngermanfalse
	\@germanfalse
}

\newcommand{\lfh@ifgerman}[2]{%
    \iflanguage{german}{#1}{%
        \iflanguage{ngerman}{#1}{#2}%
    }%
}

\DeclareOption*{\PassOptionsToClass{\CurrentOption}{article}}

\ProcessOptions\relax


% Standardklasse laden
\LoadClass[a4paper,11pt]{article}

% Pakete laden
	% Standardformat
		\RequirePackage[left=4cm, right=2cm, top=2.5cm, bottom=2.5cm]{geometry} % Abstände
		\RequirePackage{tex-gyre} % Für TeX Gyre Heros (Serifenlose Schrift)
		\RequirePackage{setspace} % Zeilenabstände
		\RequirePackage{microtype} % Bessere Typographie im Blocksatz
	% Headerzusätze
		\RequirePackage{fancyhdr}
		\RequirePackage{hyperref}
		\RequirePackage{graphicx}
	% Konfiguration per Key->Value
		\RequirePackage{keyval}
	% Sprache
		\RequirePackage[english,ngerman ,german]{babel}
		\if@english
			\AtBeginDocument{\selectlanguage{english}}
		\else
			\if@ngerman
				\AtBeginDocument{\selectlanguage{ngerman}}
				\ClassWarning{leibnizfh}{ngerman deprecated. Use german instead}%
			\else
				\if@german
					\AtBeginDocument{\selectlanguage{german}}
				\else
					% Keine Sprache gewählt -> Standard
					\AtBeginDocument{\selectlanguage{german}}
				\fi
			\fi
		\fi
% Formatgrundlagen
	\renewcommand{\familydefault}{\sfdefault} % Font
	\onehalfspacing %Zeilenabstand
	\setlength{\parindent}{0pt} % Absatzeinrückung
	\setlength{\parskip}{11pt} % Absatzhöhe

	% Helpercommandos
	% Logo
	\newcommand{\lfh@includeLogo}{%
		    \ifx\lfh@logo\@empty
		        \ClassInfo{leibnizfh}{No logo file specified. Use \protect\lfhsetup{logo=path/to/file.ext}}%
    \else
        	\IfFileExists{\lfh@logo}{%
            	\includegraphics[height=3\baselineskip]{\lfh@logo}%
        	}{%
            	\ClassWarning{leibnizfh}{Logo file '\lfh@logo' not found. Header rendered without logo}%
        	}%
    	\fi
	}


% Fußnote
	\renewcommand\footnotesize{%
		\@setfontsize\footnotesize{9pt}{11pt} }

% Konfiguration
	\newcommand*\lfh@title{Thema (Schrift groß oder fett)}
	\newcommand*\lfh@subtitle{}
	\newcommand*\lfh@module{Nennung des Moduls}
	\newcommand*\lfh@semester{Semesterangabe\, z. B. „WS2025/2026“}
	\newcommand*\lfh@worktype{Leistungsnachweis/Hausarbeit Praxisreflexion/Projektarbeit/Seminararbeit/ }
	\newcommand*\lfh@author{Vorname Nachname}
	\newcommand*\lfh@studentid{XXXXXX}
	\newcommand*\lfh@email{e-mail@addresse.invalid}
	\newcommand*\lfh@prof{Name des Professors/in}
	\newcommand*\lfh@program{Studiengang}
	\newcommand*\lfh@submission{\today}
	\newcommand*\lfh@headerone{Muster}
	\newcommand*\lfh@headertwo{Haus-\, Seminararbeiten\, Praxisreflexionen\, Essays…}
	\newcommand*\lfh@headerthree{Leibniz-Fachhochschule $\cdot$ Version 2025}
	\newcommand*\lfh@logo{}

	\define@key{lfh}{title}{\def\lfh@title{#1}}
	\define@key{lfh}{subtitle}{\def\lfh@subtitle{#1}}
	\define@key{lfh}{module}{\def\lfh@module{#1}}
	\define@key{lfh}{semester}{\def\lfh@semester{#1}}
	\define@key{lfh}{worktype}{\def\lfh@worktype{#1}}
	\define@key{lfh}{author}{\def\lfh@author{#1}}
	\define@key{lfh}{studentid}{\def\lfh@studentid{#1}}
	\define@key{lfh}{email}{\def\lfh@email{#1}}
	\define@key{lfh}{prof}{\def\lfh@prof{#1}}
	\define@key{lfh}{program}{\def\lfh@program{#1}}
	\define@key{lfh}{logo}{\def\lfh@logo{#1}}
	\define@key{lfh}{submission}{\def\lfh@submission{#1}}
	\define@key{lfh}{headerone}{\def\lfh@headerone{#1}}
	\define@key{lfh}{headertwo}{\def\lfh@headertwo{#1}}
	\define@key{lfh}{headerthree}{\def\lfh@headerthree{#1}}
	\define@key{lfh}{logo}{\def\lfh@logo{#1}}


	\newcommand{\lfhsetup}[1]{\setkeys{lfh}{#1}}

% Header

	% Globale Header-Höhen
		\setlength{\headheight}{36pt}
		\setlength{\footskip}{25pt}

	% lfhheader
		\fancypagestyle{lfhheader}{%
  			\fancyhf{}
			\fancyhead[L]{%
				\textbf{\fontsize{10}{12}\selectfont \lfh@headerone}\\
				\textbf{\fontsize{10}{12}\selectfont \lfh@headertwo}\\
				\fontsize{10}{12}\selectfont \lfh@headerthree
			}
			\fancyhead[R]{\lfh@includeLogo}
			\renewcommand{\headrulewidth}{0.4pt}
			\renewcommand{\footrulewidth}{0pt}
			}
			
% lfhplain
	\fancypagestyle{lfhplain}{%
	  \fancyhf{}
	  \renewcommand{\headrulewidth}{0pt}
	  \renewcommand{\footrulewidth}{0pt}
	}

% lfhpage
	\fancypagestyle{lfhpage}{%
		\fancyhf{}
		\fancyfoot[C]{\thepage}
		\renewcommand{\headrulewidth}{0pt}
		\renewcommand{\footrulewidth}{0pt}
	}
	%maketitle
	\newcommand*{\makelfhtitle}{%
	\newgeometry{left=3cm,right=2cm,top=3cm,bottom=1cm}
		
		\begin{titlepage}
    		\iflfh@plaintitle
    		  	\thispagestyle{lfhplain}   % <- Plain ohne Header
    		\else
    		  	\thispagestyle{lfhheader}  % <- Standard mit Header
    		\fi

    		\vspace{2cm}

    		\begin{flushleft}
    		\lfh@ifgerman{%
				\fontsize{11.5}{12}\selectfont Leibniz-Fachhochschule\\[0.5em]
				\fontsize{11.5}{12}\selectfont \lfh@program\\[0.5em]
				\fontsize{11.5}{12}\selectfont Betreut durch: \lfh@prof
			}{
			\iflanguage{english}{%
				\fontsize{11.5}{12}\selectfont Leibniz-Fachhochschule\\[0.5em]
				\fontsize{11.5}{12}\selectfont \lfh@program\\[0.5em]
				\fontsize{11.5}{12}\selectfont Supervised by: \lfh@prof
			}{}
			}
			\end{flushleft}
			
			\vspace{2cm}

			\begin{center}
				\fontsize{11.5}{12}\selectfont \lfh@worktype\\[0.5em]
				\if@truetitle
					\fontsize{11.5}{12}\selectfont \lfh@module\ \lfh@semester
				\else
					\lfh@ifgerman{%
						\fontsize{11.5}{12}\selectfont im Fach \lfh@module\ im \lfh@semester
					}{
					\iflanguage{english}{%
						\fontsize{11.5}{12}\selectfont in the subject \lfh@module\ in \lfh@semester
					}{}
					}

				\fi
			\end{center}
			
			\vspace{1.8cm}
			\begin{center}
				{\Huge\bfseries \lfh@title}\\
				{\Large\bfseries \lfh@subtitle}
			\end{center}
			
			\vfill
			\begin{flushleft}
				\lfh@ifgerman{%
					\fontsize{11.5}{12}\selectfont \lfh@author\\[0.8em]
					\fontsize{11.5}{12}\selectfont Matrikel.-Nr.: \lfh@studentid\\[0.8em]
					\fontsize{11.5}{12}\selectfont E-Mail: \href{mailto:\lfh@email}{\lfh@email}\\[1em]
					\fontsize{11.5}{12}\selectfont Abgabedatum: \lfh@submission	
				}{
					\iflanguage{english}{%
					\fontsize{11.5}{12}\selectfont \lfh@author\\[0.8em]
					\fontsize{11.5}{12}\selectfont matr.-no.: \lfh@studentid\\[0.8em]
					\fontsize{11.5}{12}\selectfont e-mail: \href{mailto:\lfh@email}{\lfh@email}\\[1em]
					\fontsize{11.5}{12}\selectfont Submission date: \lfh@submission
				}{}
				}
			\end{flushleft}
		\end{titlepage}
		\restoregeometry
	}