#!/bin/bash
########################################################################
# Author: Fred (support@qo-op.com)
# Version: 2020.04.28
# 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##*/}"

########################################################################
# \\///
# qo-op
############# '$MY_PATH/$ME'
########################################################################
# ex: ./'$ME'
# SYNC IPFS SWARM PEERS SHARED DATA .12D3KooW****
########################################################################'

########################################################################
# ENVIRONEMENT DETECTION + IPFS ~/.zen/ipfs/.$IPFSNODEID/G1SSB/_info
########################################################################
IPFSNODEID=$(ipfs id -f='<id>\n')
[[ $IPFSNODEID == "" ]] && echo "ERROR missing IPFS Node id !! IPFS is not installed !?" && exit 1
########################################################################
[[ ! -f ~/.zen/secret.dunikey ]] && exit 1
G1PUB=$(cat ~/.zen/secret.dunikey | grep 'pub:' | cut -d ' ' -f 2)
########################################################################

## myCODE is a SECURITY about code SIMILARITY
## EACH NODE CAN CHECK IF ANOTHER HAS SAME IPFS CODE HASH
MyCODE=$(ipfs add -rq --ignore="__pycache__" ~/.zen/astrXbian/ | tail -n 1)
[[ ! -f ~/.zen/ipfs/.${IPFSNODEID}/.mycode ]] && echo $MyCODE > ~/.zen/ipfs/.${IPFSNODEID}/.mycode
[[ "$(cat ~/.zen/ipfs/.${IPFSNODEID}/.mycode)" !=  "$MyCODE" ]] && echo $MyCODE > ~/.zen/ipfs/.${IPFSNODEID}/.mycode


echo "

  _   _   _   _  
 / \ / \ / \ / \ 
( I | P | N | S )
 \_/ \_/ \_/ \_/ 

ZENTAG MEDIAKEY REFRESH 
MyCODE = $MyCODE
"
echo "I am /ipns/$IPFSNODEID controling and refreshing my MEDIAKEY IPNS"
########################################################################
# REFRESH IPNS SELF PUBLISH
########################################################################
~/.zen/astrXbian/zen/ipns_self_publish.sh
########################################################################

count=0
[[ ! -d ~/.zen/ipfs/.${IPFSNODEID}/KEY/ ]] && exit 0

for id in $(ls ~/.zen/ipfs/.${IPFSNODEID}/KEY/); # Alternative search
do
    count=$((count+1)) && echo "$count) "
	IPNSLINK=$(ipfs key list -l | grep ${id} | cut -d ' ' -f 1)
	FILE_NAME=$(cat ~/.zen/ipfs/.${IPFSNODEID}/KEY/${id}/${G1PUB}/.ipfs.filename)
	TITLE=$(cat ~/.zen/ipfs/.${IPFSNODEID}/KEY/${id}/${G1PUB}/.title)
	
	source=$(echo $id | cut -d '_' -f 1)
	
	ANNONCE=$(cat ~/.zen/ipfs/.${IPFSNODEID}/KEY/${id}/${G1PUB}/.gchange.ad)
	## CRYPTO EXAMPLE, use natools to decrypt (could also verify signature)
	[[ -f ~/.zen/ipfs/.${IPFSNODEID}/KEY/${id}/${G1PUB}/.ipfs.filelink.natools.encrypt ]] && $MY_PATH/tools/natools.py decrypt -f pubsec -k "$HOME/.zen/secret.dunikey" -i "$HOME/.zen/ipfs/.${IPFSNODEID}/KEY/${id}/${G1PUB}/.ipfs.filelink.natools.encrypt" -o "/tmp/${id}_filelink.txt"
	cat /tmp/${id}_filelink.txt
	ARIESLINK="https://aries.copylaradio.com$(cat /tmp/${id}_filelink.txt)"
	MIMETYPE="video/${ARIESLINK##*.}"
	
	### IPNS LINK CAN EVOLVE (REFRESH EVERY 12 H TO MAINTAIN ALIVE IN THE SWARM)
echo "<meta charset=\"UTF-8\"><meta http-equiv=\"Refresh\" content=\"10;URL=https://aries.copylaradio.com/ipns/$IPNSLINK/${G1PUB}/\">
<h1><a href='https://astroport.com'>ASTROPORT</a>/KODI</h1>
<a href=\"$ARIESLINK\">LECTURE immédiate</a>! Lancement video locale dans 10 secondes ...<br>
Recrutons experts BASH pour programmer les nouveaux services du Datacenter Virtuel...<br>
<h2>Essayez <a href='https://copylaradio.com'>astrXbian</a> service de video-club entre amis</h2>
<br><br>Fichier ajouté par : <a href=\"https://www.gchange.fr/#/app/user/${G1PUB}/\">
<img width=40 src=\"https://aries.copylaradio.com/ipns/${IPFSNODEID}/.${IPFSNODEID}/G1SSB/_g1.gchange_avatar.png\"></a>" > ~/.zen/ipfs/.${IPFSNODEID}/KEY/${id}/index.html

########################################################################
### ACTIVATE & EXECUTE HERE YOUR OWN SCENARIO
# ~/.zen/ipfs/.${IPFSNODEID}/KEY/${INDEXPREFIX}${REFERENCE}/${G1PUB}/index.html
########################################################################
# FRANCE COPIE PRIVEE - clear ipfs link no tracking 
	## Write KEY id (provide verification)
	[[ ! -f ~/.zen/ipfs/.${IPFSNODEID}/KEY/${id}/${G1PUB}/.id ]] && echo ${id} > ~/.zen/ipfs/.${IPFSNODEID}/KEY/${id}/${G1PUB}/.id

	echo "<meta charset=\"UTF-8\"><meta http-equiv=\"Refresh\" content=\"0;URL=http://127.0.0.1:8181$(cat /tmp/${id}_filelink.txt)\">" > ~/.zen/ipfs/.${IPFSNODEID}/KEY/${id}/${G1PUB}/index.html

	# echo "<video autoplay='autoplay' controls><source src=\"$ARIESLINK\" type=\"$MIMETYPE\"></video>" > ~/.zen/ipfs/.${IPFSNODEID}/KEY/${id}/${G1PUB}/index.html

	if [[ "$source" == "YOUTUBE" ]]
	then
		echo "$source"
		# mutiTUBE - activate .views.counter		
		# echo "<meta http-equiv=\"Refresh\" content=\"0;URL=https://tube.copylaradio.com/ipns/$IPNSLINK/${G1PUB}/go\">" > ~/.zen/ipfs/.${IPFSNODEID}/KEY/${id}/${G1PUB}/index.html
		# TODO go/index.php from nginx proxy acting act as gateway (= Easy Round robin DNS tube.copylaradio.com is dynamic IP swap swarm nodes from node performance...)
	fi
	# ln -s /$HOME/.zen/astrXbian/www /var/www/astrxbian
	# Testez vos application à même la blockchain en la copiant dans ~/.zen/ipfs/.${IPFSNODEID}/KEY/${id}/${G1PUB}/go/
	# Proposez de l'ajouter au dépot des applications web2.0 dans ../www/ 

	echo "~/.zen/ipfs/.${IPFSNODEID}/KEY/${id}/${G1PUB}/.views.counter"
	if [[ ! -f ~/.zen/ipfs/.${IPFSNODEID}/KEY/${id}/${G1PUB}/.views.counter.sign ]]; then
		echo "0" > ~/.zen/ipfs/.${IPFSNODEID}/KEY/${id}/${G1PUB}/.views.counter
		$MY_PATH/tools/natools.py sign -f pubsec -k "$HOME/.zen/secret.dunikey" -i ~/.zen/ipfs/.${IPFSNODEID}/KEY/${id}/${G1PUB}/.views.counter -o ~/.zen/ipfs/.${IPFSNODEID}/KEY/${id}/${G1PUB}/.views.counter.sign
	fi
	
	# EXAMPLE TO ACTIVATE SECURITY : FORCE SIGNATURE VERIFICATION for each sensible file
	$MY_PATH/tools/natools.py verify -p "${G1PUB}" -i "$HOME/.zen/ipfs/.${IPFSNODEID}/KEY/${id}/${G1PUB}/.views.counter.sign" -o "/tmp/verified_msg" && echo "c'est bon" || echo "c'est pas bon"
	# Each time a station modify .views.counter it signs, log and timestamp then publish new IPNS to swarm.
	# If a "faulty" blockchain appears (Mediakey collision)...
	# Message are sent to warn friends they have to manualy validate data conflict and merge back their mutual chain.
	
	# ipfs nanochain progression
    I=$(ipfs add -qrH ~/.zen/ipfs/.${IPFSNODEID}/KEY/${id}/ | tail -n 1) 
    
	OLDCHAIN=$(cat ~/.zen/ipfs/.${IPFSNODEID}/KEY/${id}/.chain)
	if [[ "$OLDCHAIN" != "$I" ]] # MODIFY CHAIN only if something was changed
	then
		echo "$(date -u +%s%N | cut -b1-13)" > ~/.zen/ipfs/.${IPFSNODEID}/KEY/${id}/.timestamp
		echo $I > ~/.zen/ipfs/.${IPFSNODEID}/KEY/${id}/.chain
	fi
		
    # KEY ZenTag IPNS name publish
    J=$(ipfs name publish -k ${id} --quieter /ipfs/${I})

    echo "$id REFRESHED https://aries.copylaradio.com/ipns/$J"
    
done


# ACTIVATION MONNAIES LIBRES EQUIBIBREES
# echo "Ajouter une ML en relatif DU :
# DU(t+1)=(DU+c²)/r
# S(t+1)=(S+DU)/r
# M(t+1)=N (et oui, si vous regardez les formules, on n’a pas besoin de M :slight_smile: On a donc pas besoin de stocker M !)
# r=(1+DU)*N/N(t+1) (diviser par r, c’est multiplier par [N(t+1)/N]/(1+DU), qui prend en compte la variation de N)

# https://forum.monnaie-libre.fr/t/etude-commencer-a-la-moyenne/15231/34?u=qoop 
# "