#!/bin/bash
# javafx: compile and run javafx applications
# usage: javafx [package] [mainclass] - folders and .java are added
#  Must set JAVAFX_LIB environment variable to lib directory for JavaFX
#  If there's a src directory, it's assumed all code is under that
#  If there's a src subdirectory (such as for Intellij), cd's into that first
#  

if [ "$JAVAFX_LIB" == "" ]; then export JAVAFX_LIB=$PATH_TO_FX; fi

export build="."
if [ -d src ]; then 
  export build="src"
fi

build_subdirs=(`find "$build" -mindepth 1 -maxdepth 1 -type d -not -name '.*' -exec basename {} \;`)
if [ "$1" == "" ] && [ ${#build_subdirs[@]} -eq 1 ]; then
  export package="${build_subdirs[0]}"
  export main=Main
elif [ "$1" == "" ]; then
  export package=""
  export main=Main
elif [ "$2" != "" ]; then
  export package="$1"
  export main="$2"
# remaining cases: $2 is empty, so is $1 a package or class name?
elif [ -d "$build"/"$1" ]; then
  export package="$1"
  export main="Main"
else
  export package=""
  export main="$1"
fi

#echo "BUILD SUBDIRS: ${build_subdirs[@]}"
#echo "PACKAGE: $package"
#echo "MAIN: $main"

if [ "$package" == "" ]; then
  (cd $build; set -x; javac --module-path "$JAVAFX_LIB" --add-modules=javafx.controls,javafx.fxml *.java)
  if [ $? -eq 0 ]; then
    (set -x; java -cp "$build" --module-path "$JAVAFX_LIB" --add-modules=javafx.controls,javafx.fxml "$main")
  fi
else
  (cd $build; set -x; javac --module-path "$JAVAFX_LIB" --add-modules=javafx.controls,javafx.fxml "$package"/*.java)
  if [ $? -eq 0 ]; then
    (set -x; java -cp "$build" --module-path "$JAVAFX_LIB" --add-modules=javafx.controls,javafx.fxml "$package"."$main")
  fi
fi

# alternative ways to look for files in src directory (that doesn't use find):
#build_dir_entries=($(shopt -s nullglob; echo "$build"/*))
#if [ "$1" == "" ] && [ ${#build_dir_entries[@]} -eq 1 ] && [ -d ${build_dir_entries[0]} ]; then
#  export package="${build_dir_entries[0]}"
#  export main=Main