#! /bin/bash
if [ `pwd` != '/Users/frederick.t.damstra/variables_project/xdr-terraform-modules/base' ]; then
  echo Wrong directory!
  exit 1
fi

VARIABLE=$1
VARFILE=$2
GO=$3

if [ "${VARIABLE}" == "" ]; then
  echo No variable name specified.
  exit 2
fi

if [ "${VARFILE}" == "" ]; then
  echo No file specified. Cannot run for real.
  GO=""
fi

if [ ! -f ../variables/${VARFILE} ]; then
  echo File ../variables/${VARFILE} not found. Canot run for real.
  GO=""
fi

if [ "${GO}" == "GO" ]; then
  cmd=''
else
  echo Remember to add \'GO\' to the command line to run for real.
  cmd="/bin/echo Would run: "
fi

REGEX="s/var.${VARIABLE}/local.${VARIABLE}/g"
echo REGEX: $REGEX
REGEX2="/variable \"${VARIABLE}\" { type = .\* }/d"
echo REGEX2: $REGEX2

# Find the directories that use the variable
DIRS=$( find . -type f -name "*.tf" -exec grep -Hl var.${VARIABLE} {} \; | xargs dirname | sort -u )
echo Directories: $DIRS

for d in $DIRS; do
  pushd $d
  ls -l | grep -- '->'
  SRC=`ls -l constants.tf | awk '{ print $11 }' | sed "s/constants.tf/variables\/${VARFILE}/"`
  $cmd ln -s $SRC .
  $cmd sed -i "" $REGEX `find . -type f -name "*.tf"`
  $cmd sed -i "" "${REGEX2}" vars.tf
  popd
done