#!/bin/bash -eu

cd "$(dirname "$0")" || exit 1

BINNAME=$(basename "$0")

CONFIG_HOME=${XDG_CONFIG_HOME:-$HOME/.config}

CONFIGDIR=${CONFIGDIR:-$CONFIG_HOME/$BINNAME}
mkdir -p "$CONFIGDIR"

if [ ! -e "$CONFIGDIR"/rom ]; then
    if [ -d ../share/saturn/ROMs/ ]; then
        cp -R ../share/saturn/ROMs/ "$CONFIGDIR"/
    elif [ -d ./ROMs/ ]; then
        cp -R ./ROMs/ "$CONFIGDIR"/
    fi
    if [ ! -d "$CONFIGDIR"/ROMs ]; then
        echo "Error: No ROMs/ dir found"
        exit 1
    fi

    echo "The next step will download a ROM from https://hpcalc.org where \"HP graciously began allowing this to be downloaded in mid-2000.\""
    echo "You can hit Ctrl-C now if you do not wish to download them."
    read -r

    make -C "$CONFIGDIR"/ROMs gxrom-r
    cp "$CONFIGDIR"/ROMs/gxrom-r "$CONFIGDIR"/rom
fi

[ ! -e "$CONFIGDIR"/port1 ] && dd if=/dev/zero of="$CONFIGDIR"/port1 bs=1k count=128
[ ! -e "$CONFIGDIR"/port2 ] && dd if=/dev/zero of="$CONFIGDIR"/port2 bs=1k count=4096

RESET=''
if [ ! -e "$CONFIGDIR"/ram ]; then
    RESET=--reset
fi

./saturn --48gx --state-dir "$CONFIGDIR" "$RESET" "$@"