#!/bin/bash
set -e

out=${1:-output}

echo "" > $out

echo "Below is the feedback and provisional mark for your submission" >> $out
echo "for CW 7, Part 1.  Please note all marks are provisional until" >> $out
echo "ratified by the assessment board -- this is not an official" >> $out
echo "results transcript." >> $out
echo "" >> $out

function scala_vars {
   (egrep 'var|return|ListBuffer|mutable' "$1" 2> /dev/null 1> /dev/null)
}


# compilation tests

function scala_compile {
  (scala "$1" 2> /dev/null 1> /dev/null) 
}


# functional tests

function scala_assert {
  (scala -i "$1" "$2" -e "" 2> /dev/null 1> /dev/null)
}


# marks for CW2
marks=$(( 0 ))

# knights1: var, comments test

echo "knight1.scala does not contain vars, returns etc?" | tee -a $out

if (scala_vars knight1.scala)
then
  echo "  --> fail" | tee -a $out
  tsts0=$(( 1 ))
else
  echo "  --> yes" | tee -a $out
  tsts0=$(( 0 )) 
fi


# compilation test

if [ $tsts0 -eq 0 ]
then    
  echo "knight1.scala runs?" | tee -a $out

  if (scala_compile knight1.scala.bak)
  then
    echo "  --> yes" | tee -a $out
    tsts1=$(( 0 ))
  else
    echo "  --> scala did not run knight1.scala" | tee -a $out
    tsts1=$(( 1 )) 
  fi
else
  tsts1=$(( 1 ))   
fi

### knight1a test

if [ $tsts1 -eq 0 ]
then
    echo " is_legal(8, Nil) (3,4) == true " | tee -a $out
    echo " is_legal(8, (4,1) (1,0)) (4,1) == false " | tee -a $out
    echo " is_legal(2, Nil) (0,0) == true" | tee -a $out                          

    if (scala_assert "knight1.scala.bak" "../../../marking/knight1c_test.scala")
    then
        echo "  --> success" | tee -a $out
        marks=$(( marks + 1 ))
    else
        echo "  --> test failed" | tee -a $out
    fi
fi

if [ $tsts1 -eq 0 ]
then
  echo " legal_moves(8, Nil, (2,2)) = (3,4), (4,3), (4,1), (3,0), (1,0), (0,1), (0,3), (1,4)" | tee -a $out
  echo " legal_moves(8, Nil, (7,7)) = (6,5), (5,6)" | tee -a $out
  echo " legal_moves(8, (4,1), (1,0), (2,2)) = (3,4), (4,3), (3,0), (0,1), (0,3), (1,4)" | tee -a $out
  echo " legal_moves(8, (6,6), (7,7)) = (6,5), (5,6)" | tee -a $out
  echo " legal_moves(1, Nil, (0,0)) = Nil" | tee -a $out
  echo " legal_moves(2, Nil, (0,0)) = Nil" | tee -a $out
  echo " legal_moves(3, Nil, (0,0)) = (1,2), (2,1)" | tee -a $out
  
  if (scala_assert "knight1.scala.bak" "../../../marking/knight1_test.scala")
  then
    echo "  --> success" | tee -a $out
    marks=$(( marks + 1 ))
  else
    echo "  --> test failed" | tee -a $out
  fi
fi

### knight1b test

if [ $tsts1 -eq 0 ]
then
  echo " all_tours from every position on the board" | tee -a $out
  echo " dim = 1: 1" | tee -a $out
  echo "       2: 0,0,0,0" | tee -a $out
  echo "       3: 0,0,0,0,0,0,0,0,0" | tee -a $out
  echo "       4: 0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0" | tee -a $out
  echo "       5: 304,0,56,0,304,0,56,0,56,0,56,0,64,0,56,0,56,0,56,0,304,0,56,0,304" | tee -a $out
  echo " enum_tours(5, (0,2) ) = 56 and all correct?" | tee -a $out
  
  if (scala_assert "knight1.scala.bak" "../../../marking/knight1b_test.scala") 
  then
    echo "  --> success" | tee -a $out
    marks=$(( marks + 2 ))
  else
    echo "  --> test failed" | tee -a $out
  fi
fi



# knights2: var, comments test

echo "knight2.scala does not contain vars, returns etc?" | tee -a $out

if (scala_vars knight2.scala)
then
  echo "  --> fail" | tee -a $out
  tsts0=$(( 1 ))
else
  echo "  --> yes" | tee -a $out
  tsts0=$(( 0 )) 
fi


# compilation test
if  [ $tsts0 -eq 0 ]
then    
  echo "knight2.scala runs?" | tee -a $out

  if (scala_compile knight2.scala.bak)
  then
    echo "  --> yes" | tee -a $out
    tsts1=$(( 0 ))
  else
    echo "  --> scala did not run knight2.scala" | tee -a $out
    tsts1=$(( 1 )) 
  fi
else
  tsts1=$(( 1 ))     
fi

### knight2 test

if [ $tsts1 -eq 0 ]
then
  echo " Let f = (x:(Int, Int)) => if (x._1 > 3) Some(List(x)) else None " | tee -a $out
  echo "  first((1,0),(2,0),(3,0),(4,0), f) == Some(List((4,0)))" | tee -a $out
  echo "  first((1,0),(2,0),(3,0), f) == None" | tee -a $out

  if (scala_assert "knight2.scala.bak" "../../../marking/knight2_test.scala") 
  then
    echo "  --> success" | tee -a $out
    marks=$(( marks + 1 ))
  else
    echo "  --> test failed" | tee -a $out
  fi
fi

### knight2b test

if [ $tsts1 -eq 0 ]
then
  echo " is first_tour(8,  (0, 0)) ok? " | tee -a $out
  echo " is first_tour(4,  (0, 0)) == None " | tee -a $out

  if (scala_assert "knight2.scala.bak" "../../../marking/knight2b_test.scala") 
  then
    echo "  --> success" | tee -a $out
    marks=$(( marks + 2 ))
  else
    echo "  --> test failed" | tee -a $out
  fi
fi


# knights3: var, comments test
#
#echo "knight3.scala does not contain vars, returns etc?" | tee -a $out

#if (scala_vars knight3.scala)
#then
#  echo "  --> fail" | tee -a $out
#  tsts0=$(( 1 ))
#else
#  echo "  --> success" | tee -a $out
#  tsts0=$(( 0 )) 
#fi


# compilation test
#if  [ $tsts0 -eq 0 ]
#then    
#  echo "knight3.scala runs?" | tee -a $out
#
#  if (scala_compile knight3.scala.bak)
#  then
#    echo "  --> success" | tee -a $out
#    tsts1=$(( 0 ))
#  else
#    echo "  --> scala did not run knight3.scala" | tee -a $out
#    tsts1=$(( 1 )) 
#  fi
#else
#  tsts1=$(( 1 ))     
#fi


## final marks
echo "Overall mark for CW 2, Part 1 " | tee -a $out
echo "$marks" | tee -a $out
