with import <nixpkgs> {};

pkgs.writeShellScriptBin "plans" ''
	#!/bin/sh
	if [ "$1" = "help" ] ; then
		echo "plans (tudbut)"
		echo
		echo "- add <str>  -- add to end of list"
		echo "- done [n]   -- remove from list"
		echo "- edit       -- edit manually using helix"
		echo "default prints list"
		echo
		echo "file used is ~/sync/plans.txt"
		exit
	fi
	if [ "$1" = "add" ] ; then
		echo "- $2" >> ~/sync/plans.txt
	fi
	if [ "$1" = "done" ] ; then
	  if [ "$2" != "" ] ; then
			head -n $(($2 - 1)) ~/sync/plans.txt > ~/plans.txt.tmp
			tail -n"$(($(wc -l < ~/sync/plans.txt) - $2))" ~/sync/plans.txt >> ~/plans.txt.tmp
		else
			tail -n"$(($(wc -l < ~/sync/plans.txt) - 1))" ~/sync/plans.txt > ~/plans.txt.tmp
		fi
		mv ~/plans.txt.tmp ~/sync/plans.txt
	fi
	if [ "$1" = "edit" ] ; then
		hx ~/sync/plans.txt
	fi
	cat -n ~/sync/plans.txt
''