#!/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'
# SURVEY received #astroport-swarmkey ipfs_swarm.key.crypt for IPFS
######################################################################## _            _ _        _   _             
___ _  _ __                         
 | |_)|_(_   _     _.._._ _ |  _    
_|_|  | __) _>\/\/(_|| | | ||<(/_\/ 
                                 /  
USED ONLY ONCE... Next swarm.key change will accurs in ~/.zen/ipfs-swarm

{
  "key": "%ydN2fyzKTKzVZiZJSxiTXbb17GVvu0ZOf7LPY6u3Bc8=.sha256",
  "value": {
    "previous": "%SM2J1D8RcWzd2/P6I3ATyN4VXHuQEP3sXy7YCtK0djE=.sha256",
    "sequence": 18,
    "author": "@t/giTDc0EtzdPQGC7iAAzgzVOkFo++XZRvzOOlqgX1c=.ed25519",
    "timestamp": 1585194822251,
    "hash": "sha256",
    "content": {
      "type": "post",
      "text": "#astroport-swarmkey = [ipfs_swarm.key.crypt](&L9nCidDjJ4c4Jz1LNTtx8Xp0SJW9HPCD9IVsbbAhS/I=.sha256) TO.SSB_${author} TO.G1_${g1author} +++ FROM.SSB_${self_name} FROM.G1_${g1self} FROM.IPFS_${ipfsnodeid}",
      "mentions": [
        {
          "link": "&L9nCidDjJ4c4Jz1LNTtx8Xp0SJW9HPCD9IVsbbAhS/I=.sha256",
          "name": "ipfs_swarm.key.crypt",
          "size": 144,
          "type": "application/octet-stream"
        }
      ]
    },
    "signature": "DHMTIS17yF450CqFssuP2iwYMMdOd3PzCDTkLYdjprTtvjWZYUEG9vHaXBrGuaFZRhV2gGZ3WSknM7YLevilAQ==.sig.ed25519"
  },
  "timestamp": 1585194822367
}


'

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')

[[ -f ~/.ipfs/ipfs_swarm.key ]] && echo  "SWARM KEY OK" && exit 1

# SEARCH "#astroport-swarmkey" CMD in message text
# Not working without patchwork (TODO: find bug. installation ok!? activate? ssb-server ssb-backlinks node_modules. HELP !! )
# messages=$(sbotc backlinks.read '{"query":[{"$filter":{"dest":"#astroport-swarmkey","value":{"content":{"type":"post"}}}}]}')
# The backlinks.read command does not publish a message, it queries the database for messages. It comes from the ssb-backlinks plugin. This plugin does not come with ssb-server by default (but it does come with Patchwork) so if you are using plain ssb-server and want to use ssb-backlinks you have to install it additionally. But to publish a message you would use the publish method (or private.publish to publish a private message, and that requires the ssb-private plugin, which is included in Patchwork but must be installed separately for ssb-server).

# SCRIPT RUN BY cron_MINUTE.sh check last hour messages
current_ts=$(date -u +%s%N | cut -b1-13)
last_ts=$((current_ts - 3600000)) # timestamp from 1h ago
#messages=$(sbotc messagesByType '{"type":"post","gt":'$last_ts'}')

echo '
                               _     _  
-|-|- _. __|_.__ ._  _ .__|___/ |\/|| \ 
-|-|-(_|_> |_|(_)|_)(_)|  |_  \_|  ||_/ 
                 |                      
sbotc messagesByType "post"
'

messages=$(sbotc messagesByType '{"type":"post"}')
while read -r msg
do
    
    attached_file=$(printf %s "$msg" | jq -r .value.content.mentions.link 2>/dev/null)

    if [[ $attached_file == "ipfs_swarm.key.crypt" ]]; then

echo '
 __         _         _               
(_\    //\ |_)|\/| |/|_\_/    _._ .__|_ 
__)\/\//--\| \|  | |\|_ |  de(_|\/|_)|_ 
                                / |     
to ~/.ipfs/ipfs_swarm.key
'
        mytmp=$(mktemp -d "${TMPDIR:-/tmp}/ssb-npm.XXXXXXXXX")
        curl -s "http://localhost:8989/blobs/get/$attached_file" > $mytmp/ipfs_swarm.key.crypt
        $MY_PATH/tools/natools.py decrypt -k ~/.ssb/secret.dunikey -i $mytmp/ipfs_swarm.key.crypt -o ~/.ipfs/ipfs_swarm.key


echo '
___ _  _ __                      
 | |_)|_(_   _| _. _ ._ _  _ ._  
_|_|  | __) (_|(_|(/_| | |(_)| | ... restart ...
                                 
'
        # TODO!!! Add user in sudo without password like "pi" = Run astroport under pi user IDEA.
        sudo systemctl restart ipfs

    fi

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