#!/usr/bin/bash

# java runtime decompiler launch script

# JPackage Project <http://www.jpackage.org/>
# Source functions library

. /usr/share/java-utils/java-functions

# identify directory tree
JRD=`basename $0`
CONF_HOME=$XDG_CONFIG_HOME


if  [ "$CONF_HOME" = "" ] ; then 
  CONF_HOME=$HOME/.config/$JRD

else
  CONF_HOME=$CONF_HOME/$JRD

fi

LOG_DIR=$CONF_HOME/logs

CONF_DIR=$CONF_HOME/conf

# create directory tree
PLUGIN_HOME=$CONF_HOME/plugins

mkdir -p $LOG_DIR

mkdir -p $CONF_DIR

mkdir -p $PLUGIN_HOME

: ${MAIN_CLASS:=org.jrd.backend.data.Main}

# set java and jvm arguments
export _prefer_jre=false
_set_java_home
set_jvm

# all dependencies must be on classpath
set_classpath java-runtime-decompiler byteman google-gson
CLASSPATH=$CLASSPATH:${JAVA_HOME}/lib/tools.jar

# set path to agent automatically
AGENT="/usr/share/java/java-runtime-decompiler/decompiler-agent.jar"
CONFIG_FILE=$CONF_DIR/config.cfg
AGENT_PREFIX="AGENT_PATH==="
AGENT_STRING=$AGENT_PREFIX$AGENT

# copy json wrappers information to home so the users can edit
CP_FILES="$(ls /etc/$JRD/plugins/*.json)"
for cpfile in $CP_FILES; do
    FILE_NAME="$(basename -- $cpfile)"
	if [ ! -e "$PLUGIN_HOME/$FILE_NAME" ]
	then
		cp $cpfile $PLUGIN_HOME
	else
		echo "Configuration files were not copied for $FILE_NAME - the existing configuration would be overwritten." >&2
	fi
done

# create config file and add agent default path
touch $CONFIG_FILE

if [ -e $AGENT ]
then
	if grep -Fxq $AGENT_STRING $CONFIG_FILE
	then
		echo "Default agent path is already set in $CONFIG_FILE. Skipping agent path setting." >&2
	elif grep -rq $AGENT_PREFIX $CONFIG_FILE
	then
		RESULT_OF_GREP="$(grep -rq $AGENT_PREFIX $CONFIG_FILE)"
		echo "Agent path is already set in $CONFIG_FILE as ${RESULT_OF_GREP}. Skipping agent path setting." >&2
	else
		echo  $AGENT_STRING >> $CONFIG_FILE

	fi
else
	echo "Agent was not found and agent path was not set correctly. This has to be done manually in the decompiler GUI, or set AGENT_PATH===path_to_agent_jar in the configuration file: $CONFIG_FILE" >&2
fi

run  "$@"