#!/usr/bin/env bash
#
# On rpm, you'll need:
#
# * java-devel
# * javapackages-tools
# * ecj
#

dirs=(bin lib src)
name="weka-clustering.jar"
weka_version="3.8.6"
weka_version_hyphen="3-8-6"

[[ -f $name ]] && mv "$name" "$name.bk"

[[ -d src ]] || (echo "This script requires the input java files in src"; exit)

rm -rf bin

for d in "${dirs[@]}"; do
  [[ -d $d ]] || mkdir "$d"
done

# Download and extract weka.jar to the lib dir
wget -qO temp.zip "https://sourceforge.net/projects/weka/files/weka-${weka_version_hyphen%-*}/$weka_version/weka-$weka_version_hyphen.zip/download" &&
unzip -o -j temp.zip weka-$weka_version_hyphen/weka.jar -d lib &&
rm temp.zip

javac -cp lib/*.jar -d bin src/*.java

# Build the classes from source java
# ecj -17 -classpath lib/weka.jar -d bin src &&

# Add weka classes to the bin
unzip -o lib/weka.jar -d bin &&

# Create the jar file from the classes
jar cvf "$name" -C bin .