#!/bin/bash -x

if [ $# -eq 0 ] 
then
    echo "No arguments entered, changing to semesterfiles/ to get data"
    for i in 1 2 3 4 5 6 7 8 
    do  
        echo -n "   /"
        sleep .1
        echo -n "\b\b"
        echo -n "   -"
        sleep .1
        echo -n "\b\b"
        echo -n "   \\"
        sleep .1
        echo -n "\b\b"
        echo -n "   |"                                                                                                         
        sleep .1
        echo -n "\b\b"
    done
    cd semesterfiles
    chmod 660 spring2011-20101105.html
    touch file1
    cat spring2011-20101105.html | grep 'ddtitle' | sed 's/<TH CLASS="ddtitle".*crn_in=.....">//g' | sed 's/<\/a>.*$//g' | wc -l > touch1
    chmod 600 spring2011-20101105.html
else
    if [ $# -eq 1 ] 
    then
        echo "the first argument is $1"
        cat $1 | grep 'ddtitle' | sed 's/<TH CLASS="ddtitle".*crn_in=.....">//g' | sed 's/<\/a>.*$//g' | wc -l
    else
        if [ $# -eq 2 ] 
        then
            vam=$(echo $1 | sed 's/-2.*html//g')
            vat=$(echo $2 | sed 's/-2.*html//g')

            if [ "$vam" = "$vat" ]
            then
                echo "argument 1 is $1"
                cat $1 | grep 'ddtitle' | sed 's/<TH CLASS="ddtitle".*crn_in=.....">//g' | sed 's/<\/a>.*$//g' | wc -l
                echo "argument 2 is $2"
                cat $2 | grep 'ddtitle' | sed 's/<TH CLASS="ddtitle".*crn_in=.....">//g' | sed 's/<\/a>.*$//g' | wc -l
                else
                echo "argument 1 is $1"
                cat $1 | grep 'ddtitle' | sed 's/<TH CLASS="ddtitle".*crn_in=.....">//g' | sed 's/<\/a>.*$//g' | wc -l
                echo "English classes offered:"
                cat $1 | grep 'ddtitle' | sed 's/<TH CLASS="ddtitle".*crn_in=.....">//g' | sed 's/<\/a>.*$//g' | grep 'ENGL' | wc -l
                echo "argument 2 is $2"
                cat $2 | grep 'ddtitle' | sed 's/<TH CLASS="ddtitle".*crn_in=.....">//g' | sed 's/<\/a>.*$//g' | wc -l
                echo "English classes offered:"
                cat $2 | grep 'ddtitle' | sed 's/<TH CLASS="ddtitle".*crn_in=.....">//g' | sed 's/<\/a>.*$//g' | grep 'ENGL' | wc -l
            fi
        else
            if [ $# -gt 2 ]
            then
                i=1
                for x in $*;do
                    echo "argument $i is $x"
                    let i=i+1
                    cat $x | grep 'ddtitle' | sed 's/<TH CLASS="ddtitle".*crn_in=.....">//g' | sed 's/<\/a>.*$//g' | wc -l
                    echo "English classes this semester:"
                    cat $x | grep 'ddtitle' | sed 's/<TH CLASS="ddtitle".*crn_in=.....">//g' | sed 's/<\/a>.*$//g' | grep 'ENGL' | wc -l
                    echo "Math classes this semester:"
                    cat $x | grep 'ddtitle' | sed 's/<TH CLASS="ddtitle".*crn_in=.....">//g' | sed 's/<\/a>.*$//g' | grep 'MATH' | wc -l
                    echo "Computer Science classes this semester:"
                    cat $x | grep 'ddtitle' | sed 's/<TH CLASS="ddtitle".*crn_in=.....">//g' | sed 's/<\/a>.*$//g' | grep 'CSCS' | wc -l
                    echo "Biology classes this semester:"
                    cat $x | grep 'ddtitle' | sed 's/<TH CLASS="ddtitle".*crn_in=.....">//g' | sed 's/<\/a>.*$//g' | grep 'BIOL' | wc -l
#   echo "Fitness classes this semester:"
#   cat $x | grep 'ddtitle' | sed 's/<TH CLASS="ddtitle".*crn_in=.....">//g' | sed 's/<\/a>.*$//g' | grep 'PFIT' | wc -l
                done
            fi                                                                                                                 
        fi
    fi
fi