#!/bin/bash
PROGRAM="$(basename $0)"
ZPROFILEDIR="$WORKDIR/profile"
TEMP="/tmp/aktmp"

# Outputs to log file in the classic format :)
logit(){
	logthis "<$PROGRAM>" "$1" "$2"
}

# Whatever the command is, we check if $ZPROFILEDIR is there.
# If NOT we create it and we change dir there.
if [ ! -d $ZPROFILEDIR ]; then
	mkdir $ZPROFILEDIR
	cd $ZPROFILEDIR
	logit "[INFO]" "zprofiledir created"
else
	logit "[INFO]" "zprofiledir found"
fi

tempassin(){
	if [ ! -z $1 ]
	then
		TEMPASSIN="$1"
	else
		TIMESTAMP="$(date -u +%s)"
		TEMPASSIN="/tmp/aktmp_$TIMESTAMP"
	fi
	if [ ! -d $TEMPASSIN ]; then
		mkdir $TEMPASSIN
	fi
	cd $TEMPASSIN
	echo "$TEMPASSIN"
}
# This is working with DATA blocks. DATA that matched profile/add ACTION
#
# The profile settings/configuration is part of the blockchain produced.
# Hence, we need a specific DATA block that actually has the announcement of a
# {"key":"value"} pair.
show(){
	if [ ! -z $1 ]
	then
		logit "[INFO]" "Working with $1"
		echo '"data":"'$1'",'
		echo '"'$1'":'$(ipfs cat $1)','
		#ipfs cat $1
	else
		echo "No DATA provided"
		exit 1
	fi
}

# This should retrieve a specific value from our profile otherwise it dumps the
# whole profile values.
propget(){
	if [ ! -z $1 ]
	then
		if [ ! -f $ZPROFILEDIR/$1 ]
		then
			echo "property not found"
		else
			cat $ZPROFILEDIR/$1
		fi
	else
		echo "No particular property... indexing"
		index
	fi
}
propwrite(){
	cat > $ZPROPERTY_FILE << EOF
{
    "$ZPROPERTY_KEY":"${ZPROPERTY_VALUE}"
}
EOF
	if [ $? == 0 ]
	then
		echo "Added successfully... proceeding"
		IPFS_FILE=$(ipfs add -q $ZPROPERTY_FILE)
		echo "Prop writting,,, $IPFS_FILE"
		add $ZPROPERTY_KEY
		echo "Adding to git repo..."
		cd $ZPROFILEDIR
	else
		echo "Couldn't write to file $ZPROFILEDIR/$TO_FILE"
		exit 1
	fi
}
propset(){
	if [ ! -z $1 ]
	then
		ZPROPERTY_FILE="$ZPROFILEDIR/$1"
		ZPROPERTY_KEY="$1"
		if [ ! -f $ZPROPERTY_FILE ]
		then
			echo "No such property: $ZPROPERTY_KEY ... creating"
			ZPROPERTY_VALUE="$2"
			if [ ! -z "$ZPROPERTY_VALUE" ]
			then
				touch $ZPROPERTY_FILE
				echo "$ZPROPERTY_KEY = $ZPROPERTY_VALUE in file $ZPROPERTY_FILE"
				propwrite #"$ZPROPERTY_FILE" "${ZPROPERTY_VALUE}"
			else 
				echo "No value for $1"
			fi
		else
			echo found $ZPROPERTY_FILE
			echo "$ZPROPERTY_KEY = $ZPROPERTY_VALUE in file $ZPROPERTY_FILE"
			ZPROPERTY_VALUE="$2"
			read -p "Overwrite $1 with ${ZPROPERTY_VALUE} ? " yn
			case $yn in
				[Yy]* ) propwrite;;# "$ZPROPERTY_" "${ZPROPERTY_VALUE}";;
				[Nn]* ) exit 130;;
				* ) echo "Answer please";;
			esac
			echo $IPFS_FILE
			show $IPFS_FILE
		fi
	else
		echo "conditions unmet"
		exit 244
	fi
}
index(){
	FILES="$(ls -1 $ZPROFILEDIR)"
	i=0
	echo -n "{"
	for FILE in $FILES
	do
		if [ $FILE != "README" ]; then
			if [ $i != "0" ]; then
				echo -n ",";
			fi
			PROP=$(echo $(cat $ZPROFILEDIR/$FILE | json2bash) | cut -d '=' -f 1 | awk '{print $0}')
			VAL=$(echo $(cat $ZPROFILEDIR/$FILE | json2bash) | cut -d '=' -f 2 | awk '{print $1}')
			echo -n '"'$PROP'":"'$VAL'"';
			let i+=1
		fi
	done
	echo "}"
}
import(){
	if [ ! -z $1 ]
	then
		if [ ! -d $1 ]
		then
			echo "Profile folder check: Folder $1 does not exist. Stopping..."
			exit 4
		else
			echo "Profile folder check: Folder $1 exists."
			fl="$(ls -1 $1)"
			for f in $fl
			do
				add $1/$f
			done
		fi
	else
		echo "No value"
		exit 6
	fi
	exit 224
}

# Adds a file as a profile/add ACTION on the zchain.
add(){
	tempassin
	if [ -f $ZPROFILEDIR/$1 ]; then
		FILE="$ZPROFILEDIR/$1"
		echo "Adding from " $FILE
		FILE_IPFS_HASH=$(ipfs add -q $FILE)
		FILE_SIGN_FILE=$(pwd)/$1".asc"
		gpg2 --detach-sign --sign-with $FINGERPRINT --armor --output $FILE_SIGN_FILE $FILE
		FILE_SIGNATURE=$(ipfs add -q $FILE_SIGN_FILE)
		cat > data <<EOF
{
   "datetime":"$(date -u +%s)",
   "ipfs":"$FILE_IPFS_HASH",
   "detach":"$FILE_SIGNATURE"
}
EOF
	else
		echo "File $FILE doesn't exist";
		exit 2
	fi
	pack_z_block "profile/add" data
	if [ $? == 0 ]
	then
		echo "Profile added successfully"
	else
		echo "error??"
		exit 1
	fi
}
usage(){
	echo "Usage:"
	echo "		$PROGRAM command [options]"
	echo ""
	echo "Indexes, shows, imports, adds, sets and gets values from and to the"
    echo "zchain and files."
	echo ""
	echo -e "\thelp\t\t\t\tPrints this help message"
	echo -e "\tindex\t\t\t\tShow current status"
	echo -e "\tshow <data>\t\t\tShow profile entry from specified DATA IPFS CIDv0"
	echo -e "\tset <property> <value>\t\tSets a profile value"
	echo -e "\tget <property>\t\t\tGets a profile value from the on-disk file."
	echo ""
    echo "Advanced (use with caution may produce duplicate entries):"
	echo -e "\tadd <file>\t\t\tCreates a data file from the profile file you point to (file should already be in ZPROFILEDIR."
	echo -e "\timport <folder>\t\t\tImport a folder to zchain #TODO"
	echo ""
	exit 0
}
if [ ! -z $1 ]; then
	case $1 in
		help) usage; exit;;
		index) index; exit;;
		show) show $2; exit;;
		import) import $2; exit;;
		add) add $2; exit;;
		set) propset $2 "$3"; exit;;
		get) propget $2; exit;;
		* ) usage;;
	esac
else usage
fi