#!/bin/bash

set -euo pipefail

out=${1:-output}

echo "" > $out

echo "Below is the feedback and provisional marks for your submission" >> $out

echo "for assignment 6 Advanced Part 3.  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

# marks for CW6 part 3

marks=$(( 0 ))

# compilation tests

function scala_compile {

    (ulimit -t 30; JAVA_OPTS="-Xmx1g" scala -nc "$1" 2> /dev/null 1> /dev/null)

}

# functional tests

function scala_assert {

    (ulimit -t 30; JAVA_OPTS="-Xmx1g" scala -nc -i  "$1" "$2" -e "" 2> /dev/null 1> /dev/null)

}

# purity test

function scala_vars {

   (egrep '\bvar\b|\breturn\b|\.par|ListBuffer|mutable|new Array' "$1" 2> /dev/null 1> /dev/null)

}

# var, .par return, ListBuffer test

#

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

if (scala_vars drumb.scala)

then

  echo "  --> test failed" | tee -a $out

  tsts0=$(( 1 ))

else

  echo "  --> success" | tee -a $out

  tsts0=$(( 0 )) 

fi

# compilation test

if  [ $tsts0 -eq 0 ]

then 

  echo "drumb.scala runs?" | tee -a $out

  if (scala_compile drumb.scala)

  then

    echo "  --> success" | tee -a $out

    tsts=$(( 0 ))

  else

    echo "  --> scala drumb.scala did not run successfully" | tee -a $out

    tsts=$(( 1 )) 

  fi

else

  tsts=$(( 1 ))     

fi

### get_delta test

if [ $tsts -eq 0 ]

then

  echo "  get_delta(None, None) == None" | tee -a $out

  echo "  get_delta(Some(50.0), None) == None" | tee -a $out

  echo "  get_delta(None, Some(100.0)) == None" | tee -a $out

  echo "  get_delta(Some(50.0), Some(100.0)) == Some(1.0)" | tee -a $out

  if (scala_assert "drumb.scala" "drumb_test4.scala")

  then

      echo "  --> success" | tee -a $out

      marks=$(( marks + 1 ))

  else

      echo "  --> test failed" | tee -a $out

  fi

fi

### get_deltas_test

if [ $tsts -eq 0 ]

then

  echo -e "  get_deltas(get_prices(List(\"GOOG\", \"AAPL\"), 2010 to 2012)) == " | tee -a $out

  echo -e "    List(List(Some(-0.03573992567129673), Some(0.539975124774038)), " | tee -a $out

  echo -e "         List(Some(0.10103412653643493), Some(0.24777709700099845)))" | tee -a $out

  echo -e "" | tee -a $out

  echo -e "  get_deltas(get_prices(List(\"BIDU\"), 2004 to 2008)) == " | tee -a $out

  echo -e "    List(List(None), List(None),                          " | tee -a $out

  echo -e "         List(Some(0.9277165354330709)), List(Some(2.119679764725104)))) " | tee -a $out

  if (scala_assert "drumb.scala" "drumb_test5.scala") 

  then

     echo "  --> success" | tee -a $out

     marks=$(( marks + 1 ))

  else

     echo "  --> test failed" | tee -a $out

  fi

fi

### yield_tests

if [ $tsts -eq 0 ]

then

  echo -e "  val ds = get_deltas(get_prices(List(\"GOOG\", \"AAPL\"), 2010 to 2012))" | tee -a $out

  echo -e "  yearly_yield(get_deltas(ds, 100, 0)) == 125" | tee -a $out

  echo -e "  yearly_yield(get_deltas(ds, 100, 1)) == 117" | tee -a $out

  if (scala_assert "drumb.scala" "drumb_test6.scala") 

  then

      echo "  --> success" | tee -a $out

      marks=$(( marks + 1 ))

  else

      echo "  --> test failed" | tee -a $out

  fi

fi

### investment_test

if [ $tsts -eq 0 ]

then

  if (scala_assert "drumb.scala" "drumb_test7.scala") 

  then

    echo "  --> success" | tee -a $out

    marks=$(( marks + 1 ))

  else

    echo "  --> test failed" | tee -a $out

  fi

fi

## final marks

echo "Overall mark for CW 6, Part 3" | tee -a $out

echo "$marks" | tee -a $out