#!/bin/bash
# shellcheck disable=SC1091
thisdir="$( dirname "$(readlink -e -- "${BASH_SOURCE[0]}")")"

log() {
    timestamp="$(date +'%Y-%m-%d %H:%M:%S')"
    datestamp="$(date +'%Y-%m-%d')"
    [ ! -d "$thisdir/log" ] && mkdir "$thisdir/log"
    echo "[$timestamp] $*" >> "$thisdir/log/$datestamp.log"
}

[ ! -f "$thisdir/.env" ] && {
    log "ERROR: .env not exists"
    exit 1
}

source "$thisdir/.env"

[ -z "$DUCK_TOKEN" ] && {
    log "ERROR: env var DUCK_TOKEN not specified"
    exit 1
}

[ -z "$DUCK_DOMAINS" ] && {
    log "ERROR: env var DUCK_DOMAINS not specified"
    exit 1
}

result=$(curl -s "https://www.duckdns.org/update?domains=${DUCK_DOMAINS}&token=${DUCK_TOKEN}&ip=${DUCK_IP}")
log "$result"