Script to stop the sabnzbd queue while SpotWeb retrieve runs to avoid "Too many connections to server xxxxx.xxx" error

spotWrapper-secret.sh

#!/usr/bin/env bash
# shellcheck shell=bash

# If sabnzbd is downloading at the time the spotweb retrieve script runs
# You can get the "Too many connections to server xxxxx.xxx" error.
# The script attempts to pause the sabnzbd queue, 
# then wait for all connections to disconnect before running the spotweb retrieve script.
# Once it completes, the queue is started again (or reverted to initial state). 
echo "Start time: $(date)"
start=$(date +%s)

if ! hash jq &>/dev/null; then
	echo "You need to install jq for this to work - jq is like sed for JSON data"
	echo "run: apt-get install jq"
	exit 255
fi

if ! hash wget &>/dev/null; then
	echo "You need to install wget for this to work - wget retrieves files from the web"
	echo "run: apt-get install wget"
	exit 255
fi

apikey="xxxxxxxxxxxxxxxxxxxxxxxx"
endBit="&apikey=${apikey}&output=json"
url="http://192.168.1.13:7777"

# check to see if sab is downloading
isDownloading=$(wget -qO- "${url}/api?mode=queue${endBit}" | jq -r '.queue.status')
initialStatus=${isDownloading}
echo "sabnzbd queue initialStatus is $initialStatus"

if [[ ${isDownloading} =~ "Downloading" ]]; then
	echo "sabnzbd queue is $isDownloading"
	# need to pause the queue
	echo "pausing sabnzbd queue"
	wget -qO- "${url}/api?mode=pause${endBit}"  &> /dev/null
else 
	echo "sabnzbd queue is $isDownloading" # idle or paused
fi

# give sab some time to start disconnecting
echo "sleeping for 10s"
sleep 10

echo "check for active connections"

serveractiveconn=$(wget -qO- "${url}/api?mode=fullstatus&skip_dashboard=1${endBit}" | jq -r '.status.servers[].serveractiveconn')

echo "serveractiveconn = $serveractiveconn"

serveractiveconn=$(wget -qO- "${url}/api?mode=fullstatus&skip_dashboard=1${endBit}" | jq -r '.status.servers[].serveractiveconn')

while [ "$serveractiveconn" -gt 0 ]; do
    echo "serveractiveconn = $serveractiveconn"
    sleep 1
    serveractiveconn=$(wget -qO- "${url}/api?mode=fullstatus&skip_dashboard=1${endBit}" | jq -r '.status.servers[].serveractiveconn')
done

echo "serveractiveconn now = $serveractiveconn, we can start to retrieve spots"

# quick double check that queue is still paused/idle
isDownloading=$(wget -qO- "${url}/api?mode=queue${endBit}" | jq -r '.queue.status')

if [[ ${isDownloading} =~ "Paused" || ${isDownloading} =~ "Idle" ]]; then
	echo "sabnzbd queue is $isDownloading"
	echo "Can now retrieve spots"
	su -l www-data -s /usr/bin/php /var/www/spotweb/retrieve.php 
	echo "sleeping for 10s" # probably not needed, but just in case threre are any lingering connections
	sleep 10
	
	if [[ ! ${initialStatus} =~ "Paused" ]]; then
		echo "restarting sabnzbd queue"

		# restart queue
		wget -qO- "${url}/api?mode=resume${endBit}"  &> /dev/null
	else 
		echo "Not restarting sabnzbd queue as it was initially ${initialStatus}"
	fi
else
	echo "sabnzbd queue not paused"
	exit 255
fi


isDownloading=$(wget -qO- "${url}/api?mode=queue${endBit}" | jq -r '.queue.status')

if [[ ! ${isDownloading} =~ "Paused" ]]; then
	echo "sabnzbd queue unpaused/idle"
else 
	echo "sabnzbd queue is $isDownloading"
fi

end=$(date +%s)
echo "End time: $date"
echo "Duration: $((($(date +%s)-$start)/60)) minutes"

echo "---------------------"
echo