#!/bin/bash
# this script is used by lr-mess to run softwares without using softlists.

if [ $# -lt 6 ]; then
	# NOTE: in any case (further_parameters or not), path/to/game_to_launch MUST ALWAYS BE THE LAST PARAMETER !
	echo "usage: $0 <path/to/retroarch_binary> </path/to/mess_libretro> </path/to/retroarch.cfg>"
	echo "\t<mess_system_name> </path/to/bios_folder> <further_parameters path/to/game_to_launch|path/to/game_to_launch>"
	exit 1
fi

_retroarchbin="$1"
_messpath="$2"
_config="$3"
_cfgdir=$(dirname "$_config")
_system="$4"
_biosdir="$5"
#<<NEW CODE FOLLOWS>>
#
# use the name of the rom to generate the 'tmpmess.cmd' file so RetroArch can save a custom game config$
#
_fname="$(basename "${*: -3:1}")"
_fbname="${_fname%.*}"
#<<END NEW CODE>>

echo "[.] parameters dump"
echo "\t_retroarchbin: $_retroarchbin"
echo "\t_messpath: $_messpath"
echo "\t_config: $_config (+ $_config.add)"
echo "\t_cfg_directory: $_cfgdir"
echo "\t_system: $_system"
echo "\t_biosdir: $_biosdir"

# generate parameters for mess.cmd
_cmdarr=()
_cmdarr+=( "$_system" )
_cmdarr+=( "-rp" )
_cmdarr+=( "\"$_biosdir\"" )
_cmdarr+=( "-cfg_directory" )
_cmdarr+=( "$_cfgdir" )

_count=0
_stopadd=false
_lastparam=""
for _param in "$@"; do
    if [[ $_count -gt 4 ]]; then
		# we need to strip --appendconfig here, which seems to be added by runcommand.sh in the end......
		# we also remove verbose, in case it's launched with verbose on from runcommand.sh (we use --verbose anyway ourself)
		if [[ "$_param" == --* ]]; then # "--appendconfig" ]] || [[ "$_param" = "--verbose" ]]; then
			if [[ "$_stopadd" = false ]]; then 
				_romdir=$(dirname "$_lastparam")
			fi
			_stopadd=true
		fi
		if [[ "$_stopadd" = false ]]; then
	        _cmdarr+=( \""$_param"\" )
		fi
    fi
    ((_count+=1))
	if [[ "$_stopadd" = false ]]; then 
		_lastparam=$_param
		_romdir=$(dirname "$_lastparam")
	fi
done

echo "\t_romdir: $_romdir"

# generate mess.cmd
echo "\t/tmp/mess.cmd content: ${_cmdarr[@]}"
#<<NEW CODE FOLLOWS>>
# _tmpcmd="$_romdir/tmpmess.cmd"
#
# Now use the root name of the rom file as the name of the cmd file
#
_tmpcmd="$_romdir/$_fbname.cmd"
#<<END NEW CODE>>
_tmpcfg="$_cfgdir/tmpconfig.add"
rm "$_tmpcmd"
rm "$_tmpcfg"
echo "${_cmdarr[@]}" > "$_tmpcmd"

# run retroarch & mess using the custom generated launcher .cmd
# $_config.add has been generated by the setup script, it's needed to force softlists disabled...
# we also add here the same /dev/shm/retroarch.cfg that was stripped above....
cat /dev/shm/retroarch.cfg >> "$_tmpcfg"
cat "$_config.add" >> "$_tmpcfg"
set -- "$_retroarchbin"
set -- "$@" --verbose --config "$_config" --appendconfig "$_tmpcfg" -L "$_messpath" "$_tmpcmd"
echo "[.] launching: $@"
"$@"

# deleting tmp 
rm "$_tmpcmd"
rm "$_tmpcfg"