How can a dwmblock update its output based on $BUTTON?

[youssefaltai]

Problem

I have a simple bash script myscript.sh:

#!/usr/bin/bash

clicked="none"

case $BUTTON in
    1) notify-send hello; clicked="left";;
    3) notify-send goodbye; clicked="right";;
esac

printf $clicked

and I have this in dwmblocks/blocks.h:

//Modify this file to change what commands output to your statusbar, and recompile using the make command.
static const Block blocks[] = {
	/*Icon*/	/*Command*/		/*Update Interval*/	/*Update Signal*/
    { "my script: ", "myscript.sh", 0, 12},
};

//sets delimeter between status commands. NULL character ('\0') means no delimeter.
static char delim[] = " | ";
static unsigned int delimLen = 5;

and this in dwm/config.h:

static const Button buttons[] = {
//  ...
	{ ClkStatusText,        0,              Button1,        sigdwmblocks,   {.i = 1} },
	{ ClkStatusText,        0,              Button2,        sigdwmblocks,   {.i = 2} },
	{ ClkStatusText,        0,              Button3,        sigdwmblocks,   {.i = 3} },
// ...

What I would like to happen is for the block to display "my script: none" at first, and every time I left-click it I would like it to display "my script: left", and "my script: right" every time I right-click it.

The current behavior is that when I left-click the block, notify-send works and I get a notification saying "hello", and when I right-click it I get a notification saying "goodbye", but the $clicked variable stays the same for some reason, it doesn't change even though I update it's value after calling notify-send.

What am I missing?

Patches

I applied this patch to dwm: https://dwm.suckless.org/patches/statuscmd/dwm-statuscmd-20210405-67d76bd.diff

and this one to dwmblocks: https://dwm.suckless.org/patches/statuscmd/dwmblocks-statuscmd-20210402-96cbb45.diff