#!/bin/sh
# credentials
# Written in 2019-2020 by Lucas
# CC0 1.0 Universal/Public domain - No rights reserved
#
# To the extent possible under law, the author(s) have dedicated all
# copyright and related and neighboring rights to this software to the
# public domain worldwide. This software is distributed without any
# warranty. You should have received a copy of the CC0 Public Domain
# Dedication along with this software. If not, see
# <http://creativecommons.org/publicdomain/zero/1.0/>.

usage()
{
	cat - <<. >&2
Usage:
	${0##*/} [-mpu] account
.
	exit 1
}

err()
{
	printf "%s: %s\n" "${0##*/}" "$*" >&2
	exit 1
}

clip()
{
	xclip -q -r -l 1 -sel clip 2>/dev/null
}

get_user()
{
	printf user
	sekrit cp "$1/user" && printf "\n"
}

get_pass()
{
	printf pass
	sekrit cp "$1/pass" && printf "\n"
}

get_mfa()
{
	printf mfa
	sekrit get "$1/mfa" | otpcli | clip && printf "\n"
}

get_account()
{
	account=$1
	user=$2
	pass=$3
	mfa=$4

	if [ $user = no ] && [ $pass = no ] && [ $mfa = no ]; then
		sekrit has "$account/pass" || err "unknown account $account"
		pass=yes
		sekrit has "$account/user" && user=yes
		sekrit has "$account/mfa" && mfa=yes
	fi

	if [ $user = check ]; then
		sekrit has "$account/user" || err "account $account has no user"
		user=yes
	fi
	if [ $pass = check ]; then
		sekrit has "$account/pass" || err "account $account has no pass"
		pass=yes
	fi
	if [ $mfa = check ]; then
		sekrit has "$account/mfa" || err "account $account has no MFA"
		mfa=yes
	fi

	[ $user = yes ] && get_user "$account"
	[ $pass = yes ] && get_pass "$account"
	[ $mfa = yes ] && get_mfa "$account"
}

mfa=no
pass=no
user=no
while getopts mpu flag; do
	case $flag in
	m)	mfa=check ;;
	p)	pass=check ;;
	u)	user=check ;;
	*)	usage ;;
	esac
done
shift $((OPTIND - 1))

[ $# -eq 1 ] && [ -n "$1" ] || usage
key=$1

: ${SEKRIT_DIR:=~/keep/sekrit/accounts}
export SEKRIT_DIR
get_account "$key" $user $pass $mfa