#!/usr/bin/env bash

if [ -z "$JAVACMD" -a -n "$JAVA_HOME" -a -x "$JAVA_HOME/bin/java" ]; then
    JAVACMD="$JAVA_HOME/bin/java"
else
    JAVACMD=java
fi
[ -n "$JAVACMD" ] || JAVACMD=java

declare -a java_args
declare -a konan_args

while [ $# -gt 0 ]; do
  case "$1" in
    -D*)
      java_args=("${java_args[@]}" "$1")
      shift
      ;;
    -J*)
      java_args=("${java_args[@]}" "${1:2}")
      shift
      ;;
    -X*)
      echo "TODO: need to pass arguments to all the tools somehow."
      shift
      ;;
    -time)
      konan_args=("${konan_args[@]}" -time)
      java_args=("${java_args[@]}" -agentlib:hprof=cpu=samples -Dkonan.profile=true)
      JAVACMD="time $JAVACMD"
      shift
      ;;
     *)
      konan_args[${#konan_args[@]}]=$1
      shift
      ;;
  esac
done

findHome() {
    local source="${BASH_SOURCE[0]}"
    while [ -h "$source" ] ; do
	local linked="$(readlink "$source")"
	local dir="$(cd -P $(dirname "$source") && cd -P $(dirname "$linked") && pwd)"
	source="$dir/$(basename "$linked")"
    done
    (cd -P "$(dirname "$source")/.." && pwd)
}

KONAN_HOME="$(findHome)"

KONAN_JAR="${KONAN_HOME}/konan/lib/backend.native.jar"
KOTLIN_JAR="${KONAN_HOME}/konan/lib/kotlin-compiler.jar"
INTEROP_JAR="${KONAN_HOME}/konan/lib/Runtime.jar"
HELPERS_JAR="${KONAN_HOME}/konan/lib/helpers.jar"
NATIVE_LIB="${KONAN_HOME}/konan/nativelib"
KONAN_CLASSPATH="$KOTLIN_JAR:$INTEROP_JAR:$KONAN_JAR:$HELPERS_JAR"
KONAN_COMPILER=org.jetbrains.kotlin.cli.bc.K2NativeKt
JAVA_OPTS=-ea

#
# KONAN BACKEND INVOCATION
#

java_args=("${java_args[@]} -noverify -Dkonan.home=${KONAN_HOME} -Djava.library.path=${NATIVE_LIB}")

$JAVACMD $JAVA_OPTS ${java_args[@]} -cp $KONAN_CLASSPATH $KONAN_COMPILER "${konan_args[@]}"