#!/bin/sh
# Shared environment for all VM scripts.
# Source this — don't execute directly.

# Caller must set QEMU_VM, or we fall back to PATH lookup.
QEMU_VM="${QEMU_VM:-qemu-vm}"

BRIDGE=qemu-br0
GATEWAY=10.10.0.1/24
SUBNET=10.10.0.0/24
NETWORK=lab

PROXY_VM=vm-proxy
PROXY_IP=10.10.0.2/24

IDP_VM=vm-idp
IDP_IP=10.10.0.3/24

PROXY_HOST="${PROXY_IP%%/*}"
IDP_HOST="${IDP_IP%%/*}"

SSH_USER=debian
SSH_OPTS="-o StrictHostKeyChecking=no -o UserKnownHostsFile=/dev/null -o LogLevel=ERROR"

clear_host_keys() {
    ssh-keygen -R "$PROXY_HOST" 2>/dev/null || true
    ssh-keygen -R "$IDP_HOST" 2>/dev/null || true
}

learn_host_keys() {
    ssh-keyscan -H "$PROXY_HOST" >> ~/.ssh/known_hosts 2>/dev/null
    ssh-keyscan -H "$IDP_HOST" >> ~/.ssh/known_hosts 2>/dev/null
}

wait_ssh() {
    _host=$1 _i=0
    while [ "$_i" -lt 60 ]; do
        # shellcheck disable=SC2086
        if ssh $SSH_OPTS "${SSH_USER}@${_host}" true 2>/dev/null; then
            return 0
        fi
        _i=$((_i + 1))
        sleep 1
    done
    echo "SSH timeout: ${_host}" >&2
    return 1
}