zwavejs2mqtt/src/helper/functions

#!/usr/bin/env bash

export ZWAVE_JS_CONF="${SNAP}/lib/node_modules/zwavejs2mqtt/node_modules/@zwave-js/config"

function ensure_zwavejs_config {
    # Not needed anymore as of ZWAVEJS_EXTERNAL_CONFIG
    # if [ "$(find ${ZWAVE_JS_CONF} -maxdepth 0 -empty -exec echo empty \;)" == "empty" ]; then
    #     logger "Config directory is empty, copying data from ${SNAP}/snap/zwave-js/config"
    #     rsync -raz "${SNAP}/snap/zwave-js/config" "${ZWAVE_JS_CONF}/.."
    # else
    #     logger "Config directory ${ZWAVE_JS_CONF} exists"
    # fi
    return 0
}

function get_network_key {
    if [ -f "${SNAP_DATA}/settings.json" ]; then
        SETTINGS_KEY=$(jq '.zwave.networkKey' -r ${SNAP_DATA}/settings.json)
        if [ "${SETTINGS_KEY}" != "" ] && [ "${1}" != "${SETTINGS_KEY}" ]; then
            echo "${SETTINGS_KEY}"
            return 1
        fi
        return 0
    fi
    return 0
}

function same_network_key {
    # SKIP NOW: NETWORK KEY SHOULD NOT BE USED
    # FAVOR SETTING
    # if [ -f "${SNAP_DATA}/settings.json" ]; then
    #     SETTINGS_KEY=$(jq '.zwave.networkKey' -r ${SNAP_DATA}/settings.json)
    #     if [ "${SETTINGS_KEY}" != "" ] && [ "${1}" != "${SETTINGS_KEY}" ]; then
    #         echo "${SETTINGS_KEY}"
    #         return 1
    #     fi
    #     return 0
    # fi
    return 0
}

function plug_connected {
    if ! snapctl is-connected "${1}"; then
        echo "Missing plug: «${1}»" >&2
        echo "Connect with:"
	if [ "${1}" == "serial-port" ]; then
		echo "$ sudo snap connect ${SNAP_NAME}:${1} <slot name>"
	else
		echo "$ sudo snap connect ${SNAP_NAME}:${1}"
	fi
        return 1
    fi
    return 0
}

function plugs_connected {
    MISSING=0

    RAW_OUT=$(plug_connected "raw-usb")
    RAW_RES=$?

    SERIAL_OUT=$(plug_connected "serial-port")
    SERIAL_RES=$?

    if [ $RAW_RES -ne 0 -a $SERIAL_RES -ne 0 ]; then
        echo $RAW_OUT
        echo "----- OR -----"
        echo $SERIAL_OUT
        echo "See ${SNAP_NAME}.help for more info on the serial-port plug"
        MISSING=1
    fi

    plug_connected "hardware-observe"
    if [ $? -ne 0 ]; then
        MISSING=1
    fi

    if [ $MISSING -ne 0 ]; then
        return 1
    fi

    return 0
}

function is_root {
    if [ ${EUID:-$(id -u)} -eq 0 ]; then
        return 0
    fi
    return 1
}

function require_root {
    is_root
    if [ $? -eq 1 ]; then
        echo "Running as root is required." >&2
        echo "Re-run with sudo."
        exit 1
    fi
}

function testnset_config {
    logger "${SNAP_NAME}: Testing ${1}, or setting ${2}"
    RES=$(snapctl get ${1})
    if [ $? -ne 0 ] || [ -z "${RES}" ]; then
        logger "${SNAP_NAME}: Setting ${1}=${2}"
        RES=$(snapctl set ${1}=${2})
        if [ $? -ne 0 ]; then
            logger "${RES}"
            exit 1
        fi
        return 0
    fi
    return 0
}

function test_priority_dir {
    Z2M_SETTINGS="${SNAP_DATA}/settings.json"

    if ! [ -w "${Z2M_SETTINGS}" ]; then
        return 1
    fi

	PRIORITY_DIR=$(echo "$(sed -E "s#$(dirname ${SNAP_DATA})/(current|[0-9]+)#${SNAP_DATA}#g" <<< $(cat "${Z2M_SETTINGS}" | jq '.zwave.deviceConfigPriorityDir'))" | tr -d '"')

    if [[ -d $(dirname "${PRIORITY_DIR}") && -w "${PRIORITY_DIR}" ]]; then
            jq --arg deviceConfigPriorityDir ${PRIORITY_DIR} '.zwave.deviceConfigPriorityDir = $deviceConfigPriorityDir' "${Z2M_SETTINGS}" > "${Z2M_SETTINGS}.tmp"
            if [ $? -eq 0 ]; then
                mv "${Z2M_SETTINGS}.tmp" "${Z2M_SETTINGS}"
            fi
    elif ! [[ "${PRIORITY_DIR}" =~ ^"$(dirname $SNAP_DATA)"* ]]; then 
            jq --arg deviceConfigPriorityDir "${SNAP_DATA}/devicePriorityConfig" '.zwave.deviceConfigPriorityDir = $deviceConfigPriorityDir' "${Z2M_SETTINGS}" > "${Z2M_SETTINGS}.tmp"
            if [ $? -eq 0 ]; then
                mv "${Z2M_SETTINGS}.tmp" "${Z2M_SETTINGS}"
            fi
    fi
    return 0
}

function test_default_config {
    testnset_config "server.host" "localhost"
    testnset_config "server.port" 8091

    testnset_config "server.ssl" false
    testnset_config "server.force-disable-ssl" false

    testnset_config "session.cookie-secure" $(snap get server.ssl)
    testnset_config "session.secret" $(uuid)

    testnset_config "mqtt.name" ""
}