#! /usr/bin/env sh

# FediStatusPoster - Simple CLI tools and scripts to post to the fediverse
# Copyright (C) 2024 <@Anon@yandere.cc> 
# 
# 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 <https://www.gnu.org/licenses/>.

# Requires:
#   curl
#   jq

# Get the runtime path of the bot
ABS_PATH="$(readlink -f "$0")"
RUN_DIR="$(dirname "$ABS_PATH")"
ENTRY="${RUN_DIR}/../FediStatusPoster/runconfig.sh"

DEFAULT_CREDENTIALS="${RUN_DIR}/credentials/hentaibot.sh.gpg"
DEFAULT_KEYFILE="/zfs_media/fs1/BotKeys/hentaibot.sh.key"
BOORU_URL="gelbooru.com"

[ ! $# -ge 4 ] &&\
	echo "Invalid number of arguments..." &&\
	echo "$(basename "$0") [blacklist] [searchtags] [msg_sfw] [msg_nsfw] usage:" &&\
	echo "  blacklist - A text list of newline deliminated tags to blacklist" &&\
	echo "  searchtags - The tags to search for" &&\
	echo "  msg_sfw - Display message if image is safe for work" &&\
	echo "  msg_nsfw - Display message if image is not safe for work" &&\
	exit 1

TAGS_BLACKLIST="$1"
TAGS="$2"
MSG_SFW="$3"
MSG_NSFW="$4"
shift 4

TAGS_FMT=`echo "$TAGS" | tr ' ' '\n' | xargs echo | tr ' ' '+'`
TAGS_BLK_FMT=`xargs -a "$TAGS_BLACKLIST" echo | sed 's|\ |+-|g'`
TAGS_SEARCH="${TAGS_FMT}+sort:random+-${TAGS_BLK_FMT}"

RESULT=`curl -s --get "https://${BOORU_URL}/index.php" -d "page=dapi&s=post&q=index&json=1&limit=1&tags=${TAGS_SEARCH}"`

URL_FILE="$(echo "$RESULT" | jq -r '. | .post[0].file_url')"
RATING="$(echo "$RESULT" | jq -r '. | .post[0].rating')"
NSFW="--nsfw"
TEXT="$MSG_NSFW"

PICKED="/tmp/$(basename "$URL_FILE")"

# Always delete the temporary file
trap "rm ${PICKED}" EXIT

curl -L -s "$URL_FILE" -o "$PICKED"

[ "$RATING" = "general" ] && NSFW="--safe" && TEXT="$MSG_SFW"

[ ! -f "$PICKED" ] && echo "Failed to download: ${PICKED}" && exit 1

case "$(file --mime-type "$PICKED")" in
	*': image/'*) ;;
	*': video/'*) ;;
	*)
		echo "File is not an image or video: ${PICKED}"
		;;
esac

"$ENTRY" "$DEFAULT_CREDENTIALS" "$DEFAULT_KEYFILE" "$NSFW" "$@" "$TEXT" "$PICKED"