#!/bin/bash
#
# reddit-submit - Submit a self post to reddit
# Copyright © 2019-2021 Keith Irwin <www.ki9.us>
#
#	This program is free software: you can redistribute it and/or modify
#	it under the terms of the GNU General Public License as published by
#	the Free Software Foundation, either version 3 of the License, or
#	(at your option) any later version.
#
#	This program is distributed in the hope that it will be useful,
#	but WITHOUT ANY WARRANTY; without even the implied warranty of
#	MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
#	GNU General Public License for more details.
#
#	You should have received a copy of the GNU General Public License
#	along with this program.  If not, see <http://www.gnu.org/licenses/>.
#

# Vars
CONF_FILE="~/.reddit.rc"
export $(egrep -v '^#' $CONF_FILE | xargs)
USER_AGENT="reddit-submit; https://gitea.gf4.pw/ki9/reddit-submit; last modified $(stat $0 | grep 'Modify' | cut -d ' ' -f 2); run by u/$USERNAME"

# Parse args
POST_BODY="$(</dev/stdin)"
if [ "$#" != "3" ] || [ "$POST_BODY" == "" ]; then
	echo "USAGE:"
	echo "  echo \"This is a post body\" | $0 subreddit \"My Post\""
	exit 1
fi
POST_TITLE="$2"
POST_SUB="$3"

# Authenticate
echo -n "Getting auth token... "
TOKEN=$(curl -s -X POST --user-agent "$USER_AGENT" -d "grant_type=password&username=$USERNAME&password=$PASSWORD" --user "$CLIENT_ID:$CLIENT_SECRET" https://www.reddit.com/api/v1/access_token | jq --raw-output '.access_token') && echo "Done." || echo "FAILED!"

# Quit if failed to get token
if [ "$TOKEN" == "" ]; then
	echo "FATAL: Unable to get auth token"
	exit 1
fi

# Create new post
echo -n "Posting to $POST_SUB... "
res=$(curl -s -X POST --data-urlencode "sr=$POST_SUB" --data-urlencode "kind=self" --data-urlencode "title=$POST_TITLE" --data-urlencode "text=$POST_BODY" -H "Authorization: bearer $TOKEN" --user-agent "$USER_AGENT" https://oauth.reddit.com/api/submit/)
echo $res | jq '.success' | grep -q true && echo "Done." || echo "FAILED!"
url=$(echo $res | jq --raw-output '.jquery' | grep 'www.reddit.com' | xargs)
# fullname="t3_$(echo "$url" | cut -d '/' -f 7)"
echo "$url"