#!/bin/sh -e

# ----------------------------------------------------------------------
# FPP installer
# ----------------------------------------------------------------------
# To pass flags to sbt, set the environment variable
# FPP_SBT_FLAGS
#
# To override the java command and/or set java flags, set the
# environment variable
# FPP_INSTALL_JAVA
# ----------------------------------------------------------------------

# Check arguments
if test $# -gt 1
then
  echo 'usage: install dest-dir' 1>&2
  echo '       install' 1>&2
  exit 1
fi

# Check for output directory
if test -n "$1" 
then
  # Convert to absolute path as the `cd` to 'compiler' will break relative paths passed in
  mkdir -p "$1"
  dest=`cd $1; pwd`
else
  dest=bin
fi

# Go to the working directory, so that relative paths work as expected
wd=`dirname $0`
cd $wd

# Pull in the version info
. ../version.sh

scala_version="3.1.2"

if test -n "$FPP_INSTALL_JAVA"
then
  java=$FPP_INSTALL_JAVA
else
  java=java
fi
echo "java command: $java"

dir=`dirname $dest`
dir=`cd $dir; pwd`
base=`basename $dest`
dest=$dir/$base

tools=`cat ./tools.txt`

if git describe --tags --always > /dev/null 2>&1
then
  # Ask git for the current version, if it is available
  version=`git describe --tags --always`
else
  # Otherwise use the hard-coded version
  version="$VERSION"
fi
util=lib/src/main/scala/util
echo "Updating version to $version"
sed -i.update.bak -e "s/val v = .*/val v = \"$version\"/" \
  $util/Version.scala

echo "Building jar files"
cmd="sbt $FPP_SBT_FLAGS assembly"
echo $cmd
$cmd

echo "Restoring Version.scala"
sed -i.restore.bak -e "s/val v = .*/val v = \"[unknown version]\"/" \
  $util/Version.scala

mkdir -p $dest

echo "Installing fpp at $dest"
jar=`find tools/fpp -name "*$name*assembly*.jar" | grep "target/scala-$scala_version"`
echo "  $jar"
cp $jar $dest/fpp.jar
echo '#!/bin/sh
'$java' -jar "`dirname $0`/'fpp'.jar" "$@"' > $dest/fpp
chmod +x $dest/fpp

echo "Installing tools at $dest"
for tool in $tools
do
  echo '#!/bin/sh
  '$java' -jar "`dirname $0`/'fpp'.jar" '$tool' "$@"' > $dest/fpp-$tool
  chmod +x $dest/fpp-$tool
done