#!/bin/bash

set -e

out=${1:-output}

echo "" > $out

echo "Below is the feedback for your submission for drumb.scala" >> $out

echo "" >> $out

# compilation tests

function scala_compile {

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

}

# 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 etc?" >> $out

if (scala_vars drumb.scala)

then

  echo "  --> fail (make triple-sure your program conforms to the required format)" >> $out

  tsts0=$(( 0 ))

else

  echo "  --> success" >> $out

  tsts0=$(( 0 )) 

fi

# compilation test

if  [ $tsts0 -eq 0 ]

then 

  echo "drumb.scala runs?" >> $out

  if (scala_compile drumb.scala)

  then

    echo "  --> success" >> $out

    tsts=$(( 0 ))

  else

    echo "  --> scala did not run drumb.scala" >> $out

    tsts=$(( 1 )) 

  fi

else

  tsts=$(( 1 ))     

fi

### get january data

if [ $tsts -eq 0 ]

then

  echo "  get_january_data(\"GOOG\", 1980) == List()" >> $out

  echo "  get_january_data(\"GOOG\", 2010).head == \"2010-01-04,311.349976\"" >> $out

  if (scala_assert "drumb.scala" "drumb_test1.scala")

  then

    echo "  --> success" >> $out

  else

    echo "  --> test failed" >> $out

  fi

fi

### get first price

if [ $tsts -eq 0 ]

then

  echo "  get_first_price(\"GOOG\", 1980) == None" >> $out

  echo "  get_first_price(\"GOOG\", 2010) == Some(311.349976)" >> $out

  if (scala_assert "drumb.scala" "drumb_test2.scala")

  then

    echo "  --> success" >> $out

  else

    echo "  --> test failed" >> $out

  fi

fi

### get prices tests

if [ $tsts -eq 0 ]

then

  echo "  get_prices(List(\"GOOG\", \"AAPL\"), 2010 to 2012) ==" >> $out

  echo "       List(List(Some(311.349976), Some(20.544939))," >> $out

  echo "            List(Some(300.222351), Some(31.638695))," >> $out

  echo "            List(Some(330.555054), Some(39.478039)))" >> $out

  if (scala_assert "drumb.scala" "drumb_test3.scala")

  then

    echo "  --> success" >> $out

  else

    echo "  --> test failed" >> $out

  fi

fi

### get_deltas_test

#if [ $tsts -eq 0 ]

#then

#  echo "  get_deltas(get_prices(List(\"GOOG\", \"AAPL\"), 2010 to 2012)) == " >> $out

#  echo "    List(List(Some(-0.03573992567129673), Some(0.5399749442411563)), " >> $out

#  echo "         List(Some(0.10103412653643493), Some(0.2477771728154912)))" >> $out

#  

#  if (scala_assert "drumb.scala" "drumb_test2.scala") 

#  then

#    echo "  --> success" >> $out

#  else

#    echo "  --> test failed" >> $out

#  fi

#fi

### yield_tests, investment_test

#if [ $tsts -eq 0 ]

#then

#  echo "  yearly_yield(get_deltas(<<GOOG+AAPL 2010 - 2012>>), 100, 0) == 125" >> $out

#  echo "" >> $out

#  echo "  investment(rstate_portfolio, 1978 to 2017, 100) == 30895" >> $out

#  echo "  investment(bchips_portfolio, 1978 to 2017, 100) == 349597" >> $out

#  

#  if (scala_assert "drumb.scala" "drumb_test3.scala") 

#  then

#    echo "  --> success" >> $out

#  else

#    echo "  --> test failed" >> $out

#  fi

#fi