#!/usr/bin/env bash

# GRADER for p1 CSCI 311 Spring 2006
# assumes: (1) that tests/ is one level higher
#          (2) the script is placed into the same directory
#              as the student directories
#          (3) students do not put their files into sub directories

# to do:  no protection against programs that hang

assignment=p1
exec_name=avl

start_dir=`pwd`
test_dir=../../tests

COMPILE_POINTS=50;
POINTS_FOR_BASIC_TESTS=5;
POINTS_FOR_INSERT_TESTS=3;
POINTS_FOR_DELETE_TESTS=3;

# if a single student directory is given from the command line
# else grade all students
if [ $# != 0 ]
then
    student_directories=$@
else
    # count ONLY directories
    student_directories=`ls -F | grep \/`
fi

# don't overwrite the grade file if it exists
# should preserve grade files..
rm grade.csv.*
mv grade.csv grade.csv."`date | awk '{print $4}'`"

cat << END
///////////////////////////////////////////////////////////
//       `date` grader_p1          //
///////////////////////////////////////////////////////////
END

echo $student_directories

echo "user,name,secret_id,compile,t01,t02,t03,t04,t05,t06,t07,\
t11,t12,t13,t14,t15,t16,t17,t18,t30,t31,t32,t33,t34,t35,\
t36,t37,t38,t39,total,files,lines,COMMENT" >> grade.csv

for student in $student_directories
do
    echo -n "$student: "
    student=`echo $student | sed -e 's/.$//' 2> /dev/null`
    grade=`grep ^$student students.lst`
    echo `grep ^$student students.lst`
    points=0;


    # pwd will be inside the students directory
    if cd $student
    then
		# count the number of files
		num_of_files=0;
		for cur_file in `ls *.h *.cpp *akefile 2> /dev/null`
		do
		    (( num_of_files++ ))
		done
		
        # count the number of lines
        num_of_lines=`wc -l *.h *.cpp *akefile 2> /dev/null | awk '/total/ {print $1}' 2> /dev/null`

        # remove old output files if any
        rm -f *.temp_out

        # compile and then run the tests
        if make >& /dev/null && 
           file $exec_name >& /dev/null
        then
            grade=${grade},15
            points=`expr 15 + $points`

            if [ "$student" = "wowen" ]; then
                redir=
            else
                redir='<'
            fi

            # for those who need file io instead of redirection:
            # yes that's you WOWEN
            if [ $student = "wowen/" ]; then
                echo "detected wowen"
            fi

            for test_file in $test_dir/t0[0-9]; do
                student_file=`basename $test_file`
                echo -n "$student_file  "
                eval ./$exec_name $redir  $test_file > $student_file.temp_out 2> /dev/null

                if diff $student_file.temp_out ${test_file}.out >& /dev/null; then
                    echo "passed"
                    grade=${grade},$POINTS_FOR_BASIC_TESTS
                    points=`expr $POINTS_FOR_BASIC_TESTS + $points`
                else
                    echo "failed"
                    grade=${grade},0
                fi
            done
            for test_file in $test_dir/t1[0-9]; do
                student_file=`basename $test_file`
                echo -n "$student_file  "
                eval ./$exec_name $redir  $test_file > $student_file.temp_out 2> /dev/null

                if diff $student_file.temp_out ${test_file}.out >& /dev/null; then
                    echo "passed"
                    grade=${grade},$POINTS_FOR_INSERT_TESTS
                    points=`expr $POINTS_FOR_INSERT_TESTS + $points`
                else
                    echo "failed"
                    grade=${grade},0
                fi
            done
            for test_file in $test_dir/t3[0-9]; do
                student_file=`basename $test_file`
                echo -n "$student_file  "
                eval ./$exec_name $redir  $test_file > $student_file.temp_out 2> /dev/null

                if diff $student_file.temp_out ${test_file}.out >& /dev/null; then
                    echo "passed"
                    grade=${grade},$POINTS_FOR_DELETE_TESTS
                    points=`expr $POINTS_FOR_DELETE_TESTS + $points`
                else
                    echo "failed"
                    grade=${grade},0
                fi
            done
            # clean up
            rm -f *.o avl >& /dev/null

        else # no executable
            echo "$student has no executable built"

            # 0 points for compilation
            grade=${grade},0

            # assign zero for each test
            for test_file in ~admiral/Desktop/csci311/sandbox/tests/t[0-9][0-9]
            do
                grade=${grade},0
            done
        fi

        #add on the points
        grade=${grade},$points

        #add on the number of files
        grade=${grade},$num_of_files

        #add on the number of lines
        grade=${grade},$num_of_lines
    else
        echo "wtf: can't cd to student directory: $student"
    fi
    
    # add the comment file
    if [ -f COMMENT ]; then
        grade=${grade},`cat COMMENT`
    else
        grade="${grade},NO SUBMISSION"
    fi

    cd $start_dir
    
    # write to the file
    echo $grade >> grade.csv
done