onevent script abort condition when status changes (to prevent execution) to trigger smart wall socket

[microfx]

Hey!

Using the onevent feature for quite a time now but never managed to make it work properly to shut down my smart wall socket after pressing pause (and then leaving home) – which results in my speaker to stay powered on (which is obviously not very smart). So I reworked it a bit and now seems to work ... but now when I press pause and then press play again the script will trigger anyways. Which is also a problem (pressing play / pause sequentially a few times will trigger the scripts as many times as pressed...).

My script currently looks like this:

#!/bin/bash
if [[ "$PLAYER_EVENT" = @("playing"|"preloading"|"started") ]]; then
  curl -d "" http://microlabs-p1:8123/api/webhook/p3_airplay_on 
elif [ "$PLAYER_EVENT" = "stopped" ]; then
  curl -d "" http://microlabs-p1:8123/api/webhook/p3_airplay_off
elif [ "$PLAYER_EVENT" = "paused" ]; then
  sleep 10
  curl -d "" http://microlabs-p1:8123/api/webhook/p3_airplay_off
fi

I figure I need another condition after sleep 10 to exit further execution of the script. Any idea how I can achieve this? Some kind of sub if-condition? Is that possible?

[microfx]

Can we change this into a feature request maybe? (not quite sure how this is handled here). My script for librespot has a lot of hickups sadly / is not reliable.

Shairport-Play (it's an Apple Airplay implementation) handles this fantastically. https://github.com/mikebrady/shairport-sync/

There I can achieve this by only adding two scripts to the config – and it works flawlessly – the "heavy lifting" is done in the codebase and it's not needed to figure out a complex logic in bash / python:

// Advanced parameters for controlling how Shairport Sync stays active and how it runs a session
sessioncontrol =
{
//	"active" state starts when play begins and ends when the active_state_timeout has elapsed after play ends, unless another play session starts before the timeout has fully elapsed.
	run_this_before_entering_active_state = "/bin/bash /usr/local/bin/webhook_airplay_start.sh"; // make sure the application has executable permission. If it's a script, include the shebang (#!/bin/...) on the first line
	run_this_after_exiting_active_state = "/bin/bash /usr/local/bin/webhook_airplay_stop.sh"; // make sure the application has executable permission. If it's a script, include the shebang (#!/bin/...) on the first line
	active_state_timeout = 200.0; // wait for this number of seconds after play ends before leaving the active state, unless another play session begins.

This is the code behind it (if that is of any help):

  if (config_lookup_string(config.cfg, "sessioncontrol.run_this_before_play_begins", &str)) {
        config.cmd_start = (char *)str;
      }

      if (config_lookup_string(config.cfg, "sessioncontrol.run_this_after_play_ends", &str)) {
        config.cmd_stop = (char *)str;
      }

      if (config_lookup_string(config.cfg, "sessioncontrol.run_this_before_entering_active_state",
                               &str)) {
        config.cmd_active_start = (char *)str;
      }

      if (config_lookup_string(config.cfg, "sessioncontrol.run_this_after_exiting_active_state",
                               &str)) {
        config.cmd_active_stop = (char *)str;
      }

      if (config_lookup_float(config.cfg, "sessioncontrol.active_state_timeout", &dvalue)) {
        if (dvalue < 0.0)
          warn("Invalid value \"%f\" for sessioncontrol.active_state_timeout. It must be positive. "
               "The default of %f will be used instead.",
               dvalue, config.active_state_timeout);
        else
          config.active_state_timeout = dvalue;
      }

      if (config_lookup_string(config.cfg,
                               "sessioncontrol.run_this_if_an_unfixable_error_is_detected", &str)) {
        config.cmd_unfixable = (char *)str;
      }

[roderickvd]

I changed it into a feature request. I’m quite busy with other things and this is not an itch of mine, so if you are hoping for any progress on this soon then I welcome a PR by yourself or others. Not to be unfriendly, just to manage expectations. Meanwhile I suggest you handle what you want in Bash or Python or whatever other event handler.

[microfx]

/usr/local/bin/webhook_p3_amp_off_script.sh

#!/bin/bash
echo "Standby script ran at $(date)" >> /usr/local/bin/webhook_log.txt
sleep 10
if top -b -n 1 | head | grep -A 3 PID | grep shairport > /dev/null || top -b -n 1 | head | grep -A 3 PID | grep librespot > /dev/null 
then
echo "shairport or librespot running will turn NOT off AMP power $date" >>  /usr/local/bin/webhook_log.txt
else
echo "shairport or librespot NOT running will turn off AMP power" >> /usr/local/bin/webhook_log.txt
   curl -d "" http://home-assistant.local:8123/api/webhook/p3_amp_off
echo "HS7 turned to Standby at $(date)" >> /usr/local/bin/webhook_log.txt
fi

/etc/default/raspotify-turnon-speakers.sh

#! /bin/bash
if [[ "$PLAYER_EVENT" = @("playing"|"preloading"|"started") ]]; then
  curl -d "" http://home-assistant.local:8123/api/webhook/p3_amp_on
elif [ "$PLAYER_EVENT" = "stopped" ]; then
  /usr/local/bin/webhook_p3_amp_off_script.sh
elif [ "$PLAYER_EVENT" = "paused" ]; then
  sleep 2
  /usr/local/bin/webhook_p3_amp_off_script.sh
fi

and in /etc/default/raspotify

OPTIONS="--username myuser  --password a --onevent /etc/default/raspotify-turnon-speakers.sh"

this works! It checks whether a process has high CPU load and if so doesn't turn off the amp. My script checks for librespot and shairpoint. Really cool!

[microfx]

I have found a workaround

#!/bin/bash
echo "Standby script ran at $(date)" >> /usr/local/bin/webhook_log.txt
sleep 10
if top -b -n 1 | head | grep -A 3 PID | grep shairport > /dev/null || top -b -n 1 | head | grep -A 3 PID | grep librespot > /dev/null 
then
echo "shairport or librespot running will turn NOT off AMP power $date" >>  /usr/local/bin/webhook_log.txt
else
echo "shairport or librespot NOT running will turn off AMP power" >> /usr/local/bin/webhook_log.txt
   curl -d "" http://microlabs-p1:8123/api/webhook/p3_airplay_off
echo "HS7 turned to Standby at $(date)" >> /usr/local/bin/webhook_log.txt
fi

this will check if one of the top processes is either shairport or librespot – if either of it is true, no turning off.