20 20 20 rule notification Ubuntu

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	#!/bin/bash

	# 1. Define Paths
	BIN_DIR="$HOME/.local/bin"
	SCRIPT_PATH="$BIN_DIR/eyes"
	PAUSE_FILE="$HOME/.eyes-paused"

	mkdir -p "$BIN_DIR"

	# 2. Create the notification script
	cat << 'EOF' > "$SCRIPT_PATH"
	#!/bin/bash
	PAUSE_FILE="$HOME/.eyes-paused"
	if [ -f "$PAUSE_FILE" ]; then exit 0; fi

	# Environmental variables for Cron to talk to your Desktop
	export DISPLAY=:0
	export DBUS_SESSION_BUS_ADDRESS="unix:path=/run/user/$(id -u)/bus"

	/usr/bin/notify-send -u critical -i timer "Eye Break" "20-20-20 Rule: Look 20ft away for 20 seconds!"
	EOF

	# 3. Make it executable
	chmod +x "$SCRIPT_PATH"

	# 4. Add aliases to .bashrc if they don't exist
	if ! grep -q "alias eyepause" "$HOME/.bashrc"; then
	echo "" >> "$HOME/.bashrc"
	echo "# 20-20-20 Rule Controls" >> "$HOME/.bashrc"
	echo "alias eyepause='touch $PAUSE_FILE && echo \"Eye rule paused.\"' " >> "$HOME/.bashrc"
	echo "alias eyeresume='rm -f $PAUSE_FILE && echo \"Eye rule resumed.\"' " >> "$HOME/.bashrc"
	echo "alias eyestatus='[ -f $PAUSE_FILE ] && echo \"Paused\" \|\| echo \"Running\"' " >> "$HOME/.bashrc"
	fi

	# 5. Setup Cron Job (Runs every 20 minutes)
	# We use a temp file to avoid duplicating entries if you run this setup twice
	crontab -l 2>/dev/null \| grep -v "$SCRIPT_PATH" > mycron
	echo "/20 * * * $SCRIPT_PATH" >> mycron
	crontab mycron
	rm mycron

	echo "-------------------------------------------------------"
	echo "Setup Complete!"
	echo "1. Command created at: $SCRIPT_PATH"
	echo "2. Cron job installed (running every 20 mins)."
	echo "3. Aliases 'eyepause' and 'eyeresume' added to .bashrc."
	echo "-------------------------------------------------------"
	echo "Run 'source ~/.bashrc' now to activate the pause commands."