#!/bin/bash
########################################################################
# Author: Fred (support@qo-op.com)
# Version: 2020.03.24
# License: AGPL-3.0 (https://choosealicense.com/licenses/agpl-3.0/)
########################################################################
MY_PATH="`dirname \"$0\"`"              # relative
MY_PATH="`( cd \"$MY_PATH\" && pwd )`"  # absolutized and normalized
ME="${0##*/}"
echo '
########################################################################
# \\///
# qo-op
############# '$MY_PATH/$ME'
########################################################################
# ex: ./'$ME'
# #zenyta = youtube-dl video to ~/.zen/miam/$timestamp
########################################################################
'
######## YOUTUBE-DL ##########
if [[ ! $(which youtube-dl) ]]; then
    sudo wget https://yt-dl.org/downloads/latest/youtube-dl -O /usr/local/bin/youtube-dl || err=1
    sudo chmod a+rx /usr/local/bin/youtube-dl
    sudo chown $USER /usr/local/bin/youtube-dl
fi

mkdir -p ~/.zen/miam/

self=$(sbotc whoami | jq -r .id) || exit 1
g1self=$(echo $self | cut -d '@' -f 2 | cut -d '.' -f 1 | base64 -d | base58)
self_name=$(sbotc query.read '{"query":[{"$filter":{"value":{"author": "'"$self"'", "content":{"type":"about", "about": "'"$self"'"}}}}]}' | jq -r .value?.content?.name | grep -v null | tail -n 1)
ipfsnodeid=$(ipfs id -f='<id>\n')

current_ts=$(date -u +%s%N | cut -b1-13)
[ -f ~/.zen/zenyta.last.ts ] && last_ts=$(cat ~/.zen/zenyta.last.ts) || last_ts=$((current_ts - 10*24*3600*1000 - 1)) # 10*24h ago

echo "
                              _           
 ____   ___   _ __    _   _  | |_  __   __
|_  /  / _ \ | '_ \  | | | | | __| \ \ / /
 / /  |  __/ | | | | | |_| | | |_   \ V / 
/___|  \___| |_| |_|  \__, |  \__|   \_/  
                      |___/               
last timestamp: $last_ts
"

#messages=$(sbotc messagesByType '{"type":"post","gt":'$last_ts'}')
# SEARCH "#zenyta" CMD in message text
messages=$(sbotc backlinks.read '{"query":[{"$filter":{"dest":"#zenyta","value":{"content":{"type":"post"}},"timestamp":{"$gt":'"$last_ts"'}}}]}')
while read -r msg
do
    # EXTRACT CMD PARAM
    msg_key=$(printf %s "$msg" | jq -r .key)
    author=$(printf %s "$msg" | jq -r .value.author)
#    echo $author
    timestamp=$(printf %s "$msg" | jq -r .value.timestamp)
#    echo $timestamp

    # TEST CURRENT NODE last_ts
    [[ $timestamp == $last_ts ]] && echo "ALREADY DONE" && continue

    # TEST if SWARM already made it.
   	CHECKSWARM=$(grep -Rwl "$timestamp" ~/.zen/ipfs_swarm/.Qm*/TAG/*/_tag.zensource | tail -n 1 | cut -f 4 -d '/')
	[[ $CHECKSWARM ]] && echo "$timestamp ALREADY on NODE $CHECKSWARM. CONTINUE" && continue
    
    msg_root=$(printf %s "$msg" | jq -r .value.content.root)
#    echo $msg_root
    msg_branch=$(printf %s "$msg" | jq -r .value.content.branch)
#    echo $msg_branch
    msg_text=$(printf %s "$msg" | jq -r .value.content.text)
#    echo $msg_text
    msg_ytdlurl=$(echo $msg_text | egrep -o 'https?://[^ ]+' | cut -d '\' -f 1 | tail -n 1)
#   echo $msg_ytdlurl

    # YOUTUBE-DL AUDIO

mkdir -p ~/.zen/miam/$timestamp

/usr/local/bin/youtube-dl -x --audio-format mp3 \
--write-thumbnail --write-info-json --add-metadata --embed-thumbnail \
--no-mtime -o "~/.zen/miam/$timestamp/%(id)s.%(ext)s" $msg_ytdlurl

    # REFERENCE msg_key AND timestamp
    echo "$timestamp" > ~/.zen/zenyta.last.ts
    echo "$msg_key" >  ~/.zen/miam/$timestamp/msg_key
    
    # rm ~/.zen/zenyta.last.ts

done < <(printf '%s\n' "$messages")