#!/bin/bash
PS2EMUDIR=GAMES_LIBDIR/ps2emu
PS2BINDIR=GAMES_PREFIX_OPT/pcsx2
PS2DIR=GAMES_DATADIR/pcsx2

FOLDERS="memcards bios help Langs logs snap sstates patches plugins .pixmaps"
FILES="A39517AB.xml pcsx2"
CONFIGFOLDERS="inis cfg"

mkdir -p ~/.pcsx2
cd ~/.pcsx2
cleanlinks
mkdir -p ${FOLDERS} ${CONFIGFOLDERS}
shopt -s nullglob

# Insert creates all folders found in $1 and creates symlinks 
# or copies to all files found in $1, creating the dest folder
# if needed. If dest is unspecified, it defaults to the
# basename of src. Filetypes are sym or copy.
# Usage: insert filetype src (dest)
# A phonetic usage would be:
#   "Take this file/folder and insert it into this directory.
#   For every file, symlink/copy it to the destination."
insert() {
	local src dest
	filetype="${1}"
	src="${2}"
	dest="${3}"
	: ${dest:="."}
	if [ "$(basename "${src}")" != "${src}" ]; then
		dest="${dest}/$(basename "${src}")"
	fi

	if [ -e "${src}" ]; then
		if [ -d "${src}" ]; then
			if [ -e "${dest}" ]; then
				[ ! -d "${dest}" ] && return 1
			else
				mkdir -p "${dest}"
			fi

			for f in $(find "${src}" -maxdepth 1 -type f -printf '%f ') ; do
				if [ ! -e "${dest}/${f}" ]; then
					if [ "${filetype}" == "sym" ]; then 
						ln -s "${src}/${f}" "${dest}"
					elif [ "${filetype}" == "copy" ]; then
						cp -f "${src}/${f}" "${dest}"
					fi
				fi
			done

			set $(find "${src}" -maxdepth 1 -type d -printf '%f ')
			shift
			for d in $*; do
				insert "${filetype}" "${src}/${d}" "${dest}"
			done
		else
			if [ "${filetype}" == "sym" ]; then
				ln -sf "${src}" "${dest}"
			elif [ "${filetype}" == "copy" ]; then
				cp -f "${src}" "${dest}"
			fi
		fi
	else
		return 1
	fi
}

for f in ${FILES} ${FOLDERS}; do
	insert sym ${PS2EMUDIR}/${f}
	insert sym ${PS2BINDIR}/${f}
	insert sym ${PS2DIR}/${f}
done

for f in ${CONFIGFOLDERS}; do
	insert copy ${PS2EMUDIR}/${f}
	insert copy ${PS2BINDIR}/${f}
	insert copy ${PS2DIR}/${f}
done

if [ -z "$(ls bios/)" ] ; then
	echo
	echo "*** Put your BIOS file into ~/.pcsx2/bios/"
	echo "    or pcsx2 may not work!"
	echo
fi

exec ./pcsx2 "$@"