i3blocks notify-send calendar

calendar

#! /bin/bash

send_current() {
	TODAY=$(date '+%-d')
	month=$(ncal -bhM)
	BODY=$( tail -n7 <<< $month | sed -z "s/$TODAY/<span bgcolor='white' color='black'>$TODAY<\/span>/1" | sed "s/\(.*\)\(.\{7\}\)$/\1<span color='IndianRed'>\2<\/span>/")
	HEAD=$(echo "$month" | head -n1)
	notify-send -u critical \
		"$HEAD" "$BODY"
}

send_next() {
	MONTH_n=$(date -d "+1 month" '+%m %Y')
	month=$(ncal -bhM $MONTH_n)
	BODY=$( tail -n7 <<< $month | sed "s/\(.*\)\(.\{7\}\)$/\1<span color='IndianRed'>\2<\/span>/" )
	HEAD=$( head -n1 <<< $month)
	notify-send -u critical \
		"$HEAD" "$BODY"
}

send_prev() {
	MONTH_n=$(date -d "-1 month" '+%m %Y')
	month=$(ncal -bhM $MONTH_n)
	BODY=$( tail -n7 <<< $month | sed "s/\(.*\)\(.\{7\}\)$/\1<span color='IndianRed'>\2<\/span>/" )
	HEAD=$( head -n1 <<< $month)
	notify-send -u critical \
		"$HEAD" "$BODY"
}

handle_action() {
		send_next;
		send_current;
		send_prev;
}

handle_action

I use this script to spawn 3-month calendar with notify-send by clicking on datetime section with below i3blocks config:

[time]
markup=pango
command=date '+<b>%a %d/%m <big>%H:%M</big>:%S</b>'; if [ $BLOCK_BUTTON -eq 1 ]; then $HOME/.bin/i3/calendar; fi
interval=1

Critical level of notification is optional. I just use it for dunst to not to dismiss notifications by timer, so they go away only by clicking.
Also It has some bugs in visual on weekends AFAIK but i don't really struggle with it.