#!/bin/bash

# functions
function _available_options {
	printf "Retroarch Launcher, cores available:\n"
	sed -n '/^case/,/^esac$/p' "$0" | grep ')' | grep -v '*)' | cut -f1 -d\) | sort | xargs
	exit 1
	}

function _launch {
	core_selection="$1"
	rom_selection="$3"
	# core_directory="$(awk -F\" '/libretro_directory/ {print $2}' "$XDG_CONFIG_HOME/retroarch/retroarch.cfg" | sed "s/\~/\$HOME/g")"
	arguments=(-L "$HOME/.config/retroarch/cores/$core_selection"_libretro.so "$rom_selection" --verbose)
	printf "Launching %s with %s\n" "$(basename "$rom_selection")" "$core_selection"
	retroarch "${arguments[@]}"
	}

# case loop
case "$1" in
	2600) _launch stella "$@" ;;
	3ds) _launch citra "$@" ;;
	ast) _launch hatari "$@" ;;
	dos) _launch dosbox_pure "$@" ;;
	gb) _launch sameboy "$@" ;;
	gba) _launch mgba "$@" ;;
	gbc) _launch sameboy "$@" ;;
	gcn) _launch dolphin "$@" ;;
	mame) _launch mame "$@" ;;
	n64) _launch mupen64plus_next "$@" ;;
	nds) _launch melonds "$@" ;;
	nes) _launch mesen "$@" ;;
	nvb) _launch mednafen_vb "$@" ;;
	pce) _launch mednafen_pce "$@" ;;
	ps1) _launch duckstation "$@" ;;
	ps2) _launch pcsx2 "$@" ;;
	psp) _launch ppsspp "$@" ;;
	sat) _launch mednafen_saturn "$@" ;;
	sdc) _launch flycast "$@" ;;
	sfc) _launch snes9x "$@" ;;
	smd) _launch genesis_plus_gx "$@" ;;
	wii) _launch dolphin "$@" ;;
	*) _available_options &
esac