#!/bin/sh
#
# visit
# https://api.imgur.com/oauth2/addclient
# and register an application with auth type "oauth 2 without a callback"
#
# then visit
# https://api.imgur.com/oauth2/authorize?client_id=#YOUR_CLIENT_ID#&response_type=token
#
# after auth, you'll be redirected to an imgur.com url, save the access_token
# and `export IMGUR_ACCESS_TOKEN=(access token here)`
#

if [ X"${IMGUR_ACCESS_TOKEN}" = X"" ]; then
  echo "\$IMGUR_ACCESS_TOKEN not set"
  exit 1
fi

TMP=`mktemp /tmp/imgur.XXXXXX`

curl \
	-s \
	-o $TMP \
	-X POST \
	-H "Authorization: Bearer ${IMGUR_ACCESS_TOKEN}" \
	-F "image=@${1}" \
	https://api.imgur.com/3/upload

URL=`sed -e 's/.*"link":"//' -e 's/".*//' < $TMP`

if [ X"$URL" = "" ]; then
	echo "failed parsing JSON output:"
	cat $TMP
else
	echo $URL
fi

rm $TMP