#!/usr/bin/sh

cd /opt/ || exit

hc_url="https://hc-ping.com/$HTTP_HC_UID"
services_down=""
error=""

alias curl_hc='curl -LA "$USER_AGENT" --retry 3'

check_url ()
{
	url="https://$1$2"
    printf "checking url %s ." "$url"
    dig A "$1" >/dev/null
	printf "."
	result=$(curl -LsSfv --connect-timeout 30 --retry 3 "$url" 2>&1)
	code="$?"
	printf ".\n"
	#shellcheck disable=SC2181
	if [ "$code" = "0" ]
    then
		echo "... good"
	else
		services_down=$(printf "%s\n%s" "$services_down" "$1")
		error=$(printf "%s\n==========\n%s:\n%s" "$error" "$1" "$result")
		echo "... bad"
    fi
}

#check_url "acme.serguzim.me" "/health"
check_url "analytics.serguzim.me"
check_url "auth.serguzim.me"
check_url "ci.serguzim.me"
#check_url "cloud.serguzim.me" "/login?noredir=1"
check_url "git.serguzim.me"
check_url "hook.serguzim.me"
check_url "mail.serguzim.me"
#check_url "msrg.cc" # disabled because it keeps creating false alerts
check_url "registry.serguzim.me" "/account/sign-in"
check_url "rss.serguzim.me"
#check_url "serguzim.me" # disabled because it keeps creating false alerts
check_url "status.serguzim.me" "/status/serguzim-net"
check_url "tick.serguzim.me"
check_url "wiki.serguzim.me"
check_url "www.reitanlage-oranienburg.de"

if [ "$error" = "" ]
then
    curl_hc "$hc_url" >/dev/null
	echo "ALL GOOD"
else
	curl_hc --data-raw "$services_down$error" "$hc_url/fail" >/dev/null
fi