#!/usr/bin/env bash
set -x

THIS_DIR="$(cd "$(dirname $(readlink -e "${BASH_SOURCE[0]}"))" && pwd)"

function main {
    mkdir -p "${THIS_DIR}/log"
    mkdir -p "${THIS_DIR}/db"
    mkdir -p "${THIS_DIR}/data"
    mkdir -p "${THIS_DIR}/registry"
    trap sigint_handler SIGTERM
    trap sigint_handler SIGINT
    cd "${THIS_DIR}"
    icegridregistry --Ice.Config=config.registry &
    sleep 1
    icegridnode --Ice.Config=config.node &
    sleep 1
    icegridadmin --Ice.Config=config.registry,config.node -e "application add 'application.xml'" &
    wait
}

function sigint_handler {
    send_signal "SIGTERM" "$(jobs -p)"
    wait
    rm -rf "${THIS_DIR}/log"
    rm -rf "${THIS_DIR}/db"
    rm -rf "${THIS_DIR}/data"
    rm -rf "${THIS_DIR}/registry"
}

function send_signal {
    local signal="${1}"
    local pids=(${2})
    local pid

    for pid in "${pids[@]}"; do
        signal_children "${signal}" "${pid}"

        if ps -p ${pid} > /dev/null; then
            echo "Sending ${signal} to ($(ps -p ${pid} -o cmd=))."
            kill -s ${signal} ${pid}
        fi
    done
}

function signal_children {
    local signal="${1}"
    local pid="${2}"

    if pgrep -P ${pid} > /dev/null; then
        send_signal "${signal}" "$(pgrep -P ${pid})"
    fi
}

if [[ "${BASH_SOURCE[0]}" == "${0}" ]]; then
    main "$@"
fi