Yo command

justyo.sh

#!/bin/sh

OPTSTRING='hp:l:'
ACCESSTOKEN_BASENAME='.yoaccesstoken'
ACCESSTOKEN_PATH="${HOME}/${ACCESSTOKEN_BASENAME}"

error() {
	echo "$*" > /dev/stderr
	exit 1
}

print_help() {
	local app="$(basename "$0")"
	cat << EOF
Usage: ${app} [options] <recipient> <text>

Just Yo.

Options:
 -h        display this help
 -l <url>  send a link
 -p <pair> response pair

Example:
    $ ${app} "YOFRIENDS" "Let's have a beer together"

EOF
}

check_token() {
	if ! [ -f "${ACCESSTOKEN_PATH}" ]; then
		cat << EOF
There is no '${ACCESSTOKEN_PATH}'.
You have to create a '${ACCESSTOKEN_BASENAME}' in home directory.
Get your Access Token at https://accesstoken.justyo.co/ and
write it into '${ACCESSTOKEN_BASENAME}'.
EOF
		exit 1
	fi
	return 0
}

get_token() {
	access_token="$(cat "${ACCESSTOKEN_PATH}" | tr -d '[[:space:]]')"
	if [ $? -ne 0 ]; then exit 1; fi
}

###

check_token
get_token

while getopts "${OPTSTRING}" option; do
	case ${option} in
	h)
		print_help
		exit 1
		;;
	l)
		link="$2"
		if ! [ $(echo -n "${text}" | wc -m) -le 30 ]; then
			error "Too long text. A text length should be <=30."
		fi
		shift 2
		;;
	p)
		response_pair="$2"
		if ! echo "$response_pair" | grep -q '^.*\..*$'; then
			error "Response pair is invalid format."
		fi
		shift 2
		;;
	\?)
		exit 1
		;;
	esac
done

recipient="$1"
text="`echo $2 | sed 's/[&?=]/\\\0/g'`"

if [ -z "${recipient}" ]; then
	error "No user specified."
fi

# build data
data="access_token=${access_token}"
data="${data}\nusername=${recipient}"

if [ -n "${response_pair}" ]; then
	data="${data}\nresponse_pair=${response_pair}"
fi

if [ -n "${link}" ]; then
	data="${data}\nlink=${link}"
fi

if [ -n "${text}" ]; then
	data="${data}\ntext=${text}"
fi

echo -e "${data}" | sed -e 's/^.*$/--data-urlencode "\0"/g' | xargs curl "https://api.justyo.co/yos/"