#! /bin/bash
#script for generating statistic of given PDF-file
#needs pdflatex and pdfgrep
#example usage: ./generateStatistic.sh -i ./f14ergebnisse_vor_einsicht_gemb_i_et.pdf -d 01.04.2014 -t "GeMB I" -n gemb

#default values
name="statistic"
seperator="\."

while getopts ":n:i:s:t:d:" opt; do
    case $opt in
	n)
	    name=$OPTARG
	    ;;
	i)
	    inputFile=$OPTARG
            ;;
	s)
	    seperator=$OPTARG
            ;;
	t)
	    title=$OPTARG
            ;;
	d)
	    date=$OPTARG
            ;;
        \?)
            echo "Invalid option: -$OPTARG"
            exit 1
            ;;
        :)
            echo "Option -$OPTARG requires an argument."
            exit 1
            ;;
    esac
done

print_usage() {
    echo "usage: generateStatistic -i inputFileName -t title -d date [-n outputFileName] [-s seperatorChar]"
}
if [ -z ${inputFile+x} ];
then
    echo "error: inputFileName must be set with -i option";
    print_usage;
    exit 1;
fi
if [ -z ${title+x} ];
then
    echo "warning: title should be set. Using Dummy-Klausur instead"
    title="Dummy-Klausur"
    print_usage;
fi
if [ -z ${date+x} ];
then
    echo "warning: date should be set. Using 27.04.1993 instead"
    date="27.04.1993"
    print_usage;
fi


numberOfOneDotZero=$(pdfgrep -c "1"$seperator"0[^0-9a-zA-Z]" $inputFile)
numberOfOneDotThree=$(pdfgrep -c "1"$seperator"3[^0-9a-zA-Z]" $inputFile)
numberOfOneDotSeven=$(pdfgrep -c "1"$seperator"7[^0-9a-zA-Z]" $inputFile)
numberOfTwoDotZero=$(pdfgrep -c "2"$seperator"0[^0-9a-zA-Z]" $inputFile)
numberOfTwoDotThree=$(pdfgrep -c "2"$seperator"3[^0-9a-zA-Z]" $inputFile)
numberOfTwoDotSeven=$(pdfgrep -c "2"$seperator"7[^0-9a-zA-Z]" $inputFile)
numberOfThreeDotZero=$(pdfgrep -c "3"$seperator"0[^0-9a-zA-Z]" $inputFile)
numberOfThreeDotThree=$(pdfgrep -c "3"$seperator"3[^0-9a-zA-Z]" $inputFile)
numberOfThreeDotSeven=$(pdfgrep -c "3"$seperator"7[^0-9a-zA-Z]" $inputFile)
numberOfFourDotZero=$(pdfgrep -c "4"$seperator"0[^0-9a-zA-Z]" $inputFile)
numberOfFiveDotZero=$(pdfgrep -c "5"$seperator"0[^0-9a-zA-Z]" $inputFile)
numberOfAll=$[$numberOfOneDotZero+$numberOfOneDotThree+$numberOfOneDotSeven+$numberOfTwoDotZero+$numberOfTwoDotThree+$numberOfTwoDotSeven
	      +$numberOfThreeDotZero+$numberOfThreeDotThree+$numberOfThreeDotSeven+$numberOfFourDotZero+$numberOfFiveDotZero]
if [ $numberOfAll == 0 ]
then
    echo "error: could not count anyone. check seperator"
    print_usage;
    exit 1
fi

amountOfOneDotZero=$[($numberOfOneDotZero*100)/$numberOfAll]
amountOfOneDotZeroFraction=$[(($numberOfOneDotZero*10000)/$numberOfAll)%100]
amountOfOneDotThree=$[($numberOfOneDotThree*100)/$numberOfAll]
amountOfOneDotThreeFraction=$[(($numberOfOneDotThree*10000)/$numberOfAll)%100]
amountOfOneDotSeven=$[($numberOfOneDotSeven*100)/$numberOfAll]
amountOfOneDotSevenFraction=$[(($numberOfOneDotSeven*10000)/$numberOfAll)%100]
amountOfTwoDotZero=$[($numberOfTwoDotZero*100)/$numberOfAll]
amountOfTwoDotZeroFraction=$[(($numberOfTwoDotZero*10000)/$numberOfAll)%100]
amountOfTwoDotThree=$[($numberOfTwoDotThree*100)/$numberOfAll]
amountOfTwoDotThreeFraction=$[(($numberOfTwoDotThree*10000)/$numberOfAll)%100]
amountOfTwoDotSeven=$[($numberOfTwoDotSeven*100)/$numberOfAll]
amountOfTwoDotSevenFraction=$[(($numberOfTwoDotSeven*10000)/$numberOfAll)%100]
amountOfThreeDotZero=$[($numberOfThreeDotZero*100)/$numberOfAll]
amountOfThreeDotZeroFraction=$[(($numberOfThreeDotZero*10000)/$numberOfAll)%100]
amountOfThreeDotThree=$[($numberOfThreeDotThree*100)/$numberOfAll]
amountOfThreeDotThreeFraction=$[(($numberOfThreeDotThree*10000)/$numberOfAll)%100]
amountOfThreeDotSeven=$[($numberOfThreeDotSeven*100)/$numberOfAll]
amountOfThreeDotSevenFraction=$[(($numberOfThreeDotSeven*10000)/$numberOfAll)%100]
amountOfFourDotZero=$[($numberOfFourDotZero*100)/$numberOfAll]
amountOfFourDotZeroFraction=$[(($numberOfFourDotZero*10000)/$numberOfAll)%100]
amountOfFiveDotZero=$[($numberOfFiveDotZero*100)/$numberOfAll]
amountOfFiveDotZeroFraction=$[(($numberOfFiveDotZero*10000)/$numberOfAll)%100]
averageOfAll=$[(($numberOfOneDotZero * 10)+($numberOfOneDotThree * 13)+($numberOfOneDotSeven * 17)
		+($numberOfTwoDotZero * 20)+($numberOfTwoDotThree * 23)+($numberOfTwoDotSeven * 27)
		+($numberOfThreeDotZero * 30)+($numberOfThreeDotThree * 33)+($numberOfThreeDotSeven * 37)
		+($numberOfFourDotZero * 40)+($numberOfFiveDotZero * 50))/($numberOfAll * 10)]
averageOfAllFraction=$[((($numberOfOneDotZero * 1000)+($numberOfOneDotThree * 1300)+($numberOfOneDotSeven * 1700)
			 +($numberOfTwoDotZero * 2000)+($numberOfTwoDotThree * 2300)+($numberOfTwoDotSeven * 2700)
			 +($numberOfThreeDotZero * 3000)+($numberOfThreeDotThree * 3300)+($numberOfThreeDotSeven * 3700)
			 +($numberOfFourDotZero * 4000)+($numberOfFiveDotZero * 5000))/($numberOfAll * 10))%100]
echo "\documentclass[parskip]{scrartcl}	%Dokumentenklasse 
\usepackage{lmodern}			%Vektorschrift
\usepackage[T1]{fontenc} 		%Zeichensatzkodierung von 7bit auf 8bit 
\usepackage[utf8]{inputenc} 		%Zeichensatzkodierung Unicode bzw. UTF8
\usepackage[ngerman]{babel} 		%Silbentrennung nach neuer Rechtschreibung 
\usepackage{marvosym} 			%Benutzung des Symbol-Pakets marvosym
\usepackage{array}
\usepackage{graphicx}
\usepackage{pdfpages}
\usepackage{pgfplots}
\DeclareUnicodeCharacter{20AC}{\EUR} 	%Zuordnung des Euro-Symbols
\tolerance=2000 
\setlength{\emergencystretch}{20pt} 	%verhindert das herausragen von Wörtern übers Zeilenende


\begin{document}
\title{"$title"-Klausur vom "$date" - Statistik vor Einsicht}
\thispagestyle{empty}
\centering {\huge \textbf{"$title"}}  \\\\
\vspace{0.5cm}
\centering {\LARGE {Klausur vom "$date" vor Einsicht}}
\begin{center}
	\begin{tabular}[b]{|c|c|c|}\firsthline
	 	\textbf{Note} & \textbf{Anzahl} & \textbf{Anteil} \\\\\\hline
1.0 & "$numberOfOneDotZero" & "$amountOfOneDotZero"."$amountOfOneDotZeroFraction"\% \\\\\\hline
1.3 & "$numberOfOneDotThree" & "$amountOfOneDotThree"."$amountOfOneDotThreeFraction"\% \\\\\\hline
1.7 & "$numberOfOneDotSeven" & "$amountOfOneDotSeven"."$amountOfOneDotSevenFraction"\% \\\\\\hline
2.0 & "$numberOfTwoDotZero" & "$amountOfTwoDotZero"."$amountOfTwoDotZeroFraction"\%  \\\\\\hline
2.3 & "$numberOfTwoDotThree" & "$amountOfTwoDotThree"."$amountOfTwoDotThreeFraction"\% \\\\\\hline
2.7 & "$numberOfTwoDotSeven" & "$amountOfTwoDotSeven"."$amountOfTwoDotSevenFraction"\% \\\\\\hline
3.0 & "$numberOfThreeDotZero" & "$amountOfThreeDotZero"."$amountOfThreeDotZeroFraction"\% \\\\\\hline
3.3 & "$numberOfThreeDotThree" & "$amountOfThreeDotThree"."$amountOfThreeDotThreeFraction"\% \\\\\\hline
3.7 & "$numberOfThreeDotSeven" & "$amountOfThreeDotSeven"."$amountOfThreeDotSevenFraction"\%\\\\\\hline
4.0 & "$numberOfFourDotZero" & "$amountOfFourDotZero"."$amountOfFourDotZeroFraction"\% \\\\\\hline
5.0 & "$numberOfFiveDotZero" & "$amountOfFiveDotZero"."$amountOfFiveDotZeroFraction"\% \\\\\\lasthline
	\end{tabular}
\end{center}

\begin{center}
	\begin{tabular}{|ccc|}\firsthline
	\textbf{Teilnehmer} && "$numberOfAll" \\\\\\hline
	\textbf{Nicht bestanden} & & "$amountOfFiveDotZero"."$amountOfFiveDotZeroFraction"\% \\\\\\hline
	\textbf{Durchschnitt} && "$averageOfAll"."$averageOfAllFraction" \\\\\\hline
	\end{tabular}
\end{center}
\begin{tikzpicture}
\begin{axis}[ 
	ybar,
    	symbolic x coords={1.0,1.3,1.7,2.0,2.3,2.7,3.0,3.3,3.7,4.0,5.0},
	xtick={data},
    nodes near coords,
axis x line*=bottom, % Sternchen führt dazu, dass kein Pfeil an Achse.
axis y line*=left, % Sternchen führt dazu, dass kein Pfeil an Achse.    
width = 16cm,
height = 9cm,
bar width = 1cm
]
    \addplot coordinates {(1.0,"$numberOfOneDotZero") (1.3,"$numberOfOneDotThree") (1.7,"$numberOfOneDotSeven") 
                          (2.0,"$numberOfTwoDotZero") (2.3,"$numberOfTwoDotThree") (2.7,"$numberOfTwoDotSeven") 
                          (3.0,"$numberOfThreeDotZero") (3.3,"$numberOfThreeDotThree") (3.7,"$numberOfThreeDotSeven") 
                          (4.0,"$numberOfFourDotZero") (5.0,"$numberOfFiveDotZero")};
  \end{axis}
\end{tikzpicture}

\end{document}" > $name.tex;


pdflatex -jobname $name $name.tex > /dev/null;
rm $name.tex $name.log $name.aux;