#!/usr/bin/env bash

# GRADER for p2 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
#          (4) there is a csv file named students.lst


exec_name=btree
start_dir=`pwd`

# student directories are up two levels, pwd=student diretory
test_dir=../tests

COMPILE_POINTS=25
POINTS_FOR_TESTS=1

# 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

cat << END
///////////////////////////////////////////////////////////
//       `date | awk '{"print $1 $2 $3, $6"}'` final//
///////////////////////////////////////////////////////////
END

#echo $student_directories

rm -f final_p2_grade.csv

echo "user,name,secret_id,phase1,phase2,phase3,extra_credit,compile,\
t01,t02,t03,t04,t05,t06,t07,t11,t12,t13,t14,t15,t16,\
t21,t22,t23,t24,t25,t26,t27,t28,t29,\
t31,t32,t33,t34,\
t51,t52,t53,t54,t55,t56,t57,t58,\
t61,t62,t63,t64,t65,t66,\
t71,t72,t73,t74,\
t81,t82,t83,\
_t01,_t02,_t03,_t04,_t05,_t06,_t07,_t11,_t12,_t13,_t14,_t15,_t16,\
total,files,lines,\
<------------------------------------------------------------------------------\
COMMENT\
------------------------------------------------------------------------------>
" >> final_p2_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 *.o btree

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

            for test_file in $test_dir/t[0-9][0-9]; do
                student_file=`basename $test_file`
                echo -n "$student_file  "
                ./$exec_name < $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_TESTS
                    points=`expr $POINTS_FOR_TESTS + $points`

                else
                    echo "failed"
                    grade=${grade},0
                fi
            done

            for test_file in $test_dir/_t[0-9][0-9]; do
                student_file=`basename $test_file`
                echo -n "$student_file  "
                ./$exec_name < $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_TESTS
                    points=`expr $POINTS_FOR_TESTS + $points`

                else
                    echo "failed"
                    grade=${grade},0
                fi
            done

            # clean up
            rm -f *.o btree >& /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 $test_dir/t[0-9][0-9] $test_dir/_t[0-9][0-9]
            do
                grade=${grade},0
            done
        fi

        ###################################################
        # add on the points
        ###################################################
        phase1_points=`cat ../students.lst | grep "$student" | awk -F, '{ print $4 }'`
        phase2_points=`cat ../students.lst | grep "$student" | awk -F, '{ print $5 }'`
        phase3_points=`cat ../students.lst | grep "$student" | awk -F, '{ print $6 }'`
        extra_points=`cat ../students.lst | grep "$student" | awk -F, '{ print $7 }'`
        points=`expr $points + $phase1_points + $phase2_points + $phase3_points + $extra_points`
        grade=${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 COMMENT"
    fi

    cd $start_dir
    
    # write to the file
    echo $grade >> final_p2_grade.csv
done