#!/bin/bash
set -e
CHROOT_USER=play
CHROOT_GROUP=play
INSTALL_DIR=/opt/play
HOME_DIR=/home/play

if [ "$EUID" -ne 0 ]; then
    exit 1
fi

if ! id "$CHROOT_USER" &>/dev/null; then
    useradd -r -m -s /bin/bash "$CHROOT_USER"
fi

passwd -d "$CHROOT_USER" 2>/dev/null || usermod -p "" "$CHROOT_USER"

mkdir -p "$INSTALL_DIR"
mkdir -p "$HOME_DIR"

make clean || true
make

cp -f play "$INSTALL_DIR/"
chmod +x "$INSTALL_DIR/play"

chown -R "$CHROOT_USER:$CHROOT_GROUP" "$HOME_DIR"
chown -R "$CHROOT_USER:$CHROOT_GROUP" "$INSTALL_DIR"

if ! grep -q "Match User $CHROOT_USER" /etc/ssh/sshd_config; then
    cat >> /etc/ssh/sshd_config << EOF

Match User $CHROOT_USER
        PasswordAuthentication yes
        PermitEmptyPasswords yes
        ForceCommand $INSTALL_DIR/play
        DisableForwarding yes
        MaxSessions 1
EOF
fi

echo "--------------------------------"
echo "passwd -d $CHROOT_USER"
echo "systemctl restart sshd"
echo "ssh -t $CHROOT_USER@localhost"