#!/usr/bin/env bash
#
# Waits for the proxy to be ready.
#
# Usage:
#
#   offlinepi-wait-ready <pid>

projectroot=$(realpath "$(dirname "$0")")
healthcheck="$projectroot/offlinepi-healthcheck"

pid=$1
shift

if [ -z "$pid" ]; then
    echo 'A PID must be provided.'
    exit 1
fi

if [ -n "$*" ]; then
    echo "Unexpected extra arguments: $*"
    exit 1
fi


# Wait until the server is ready
until $healthcheck; do
    if ! kill -0 "$pid" 2> /dev/null; then
        exit 1
    fi
    sleep 1
done