#!/bin/bash
# The following creates a mixtape data message
# We can extend it by calling the pack_z_block.sh mixtape/add data
ZFILESDIR="$WORKDIR/files"
TEMP="/tmp/aktmp"
if [ ! -d $ZFILESDIR ]; then
	mkdir $ZFILESDIR
	cd $ZFILESDIR
	git init
else
	logthis "error $ZFILESDIR not 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"

}

usage(){
	title
	echo "$0 - file"
}

add(){
    CRP="$(pwd)"
    FILENAME="$1"
    main $FILENAME $CRP
    cat $TEMPASSIN/data | json_pp
}
main(){
    FILENAME="$1"
    CRP="$2"
    echo "Adding $FILENAME"
    logthis "Switching to tmp folder..."
    TEMPASSIN="$(tempassin)"
    cd $TEMPASSIN
    if [ $? == 0 ]; then
	    logthis "Success"
    else
	    logthis "Error with tmp folder"
	    exit 5
    fi
    logthis "Copying $1 to $TEMPASSIN"
    cp $2/$1 $TEMPASSIN/$1
    if [ $? == 0 ]; then
	    logthis "Copied successfully"
    else
	    logthis "Error copying..."
    fi

    FILE="$TEMPASSIN/$1"

    logthis "Adding $FILE to IPFS..."
    FILE_IPFS_HASH=$(ipfs add -q $FILE)
    if [ $? == 0 ]; then
	    logthis "done"
    else
	    logthis "error"
    fi
    logthis "Signing..."
    SIGN_FILE=$FILENAME".asc"
    gpg2 --detach-sign --sign-with $FINGERPRINT --armor --output $SIGN_FILE $FILE
    if [ $? == 0 ]; then
	    logthis "Signed"
    else
	    logthis "Error while signing"
    fi

    logthis "Adding signature to IPFS"
    SIGNATURE=$(ipfs add -q $TEMPASSIN/$SIGN_FILE)
    if [ $? == 0 ]; then
	    logthis "Added"
    else
	    logthis "Error while adding"
    fi

    cat > $TEMPASSIN/data <<EOF
{
    "timestamp":"$(date -u +%s)",
    "filename":"$FILENAME",
    "ipfs":"$FILE_IPFS_HASH",
    "detach":"$SIGNATURE"
}
EOF

echo "Printing data..."
cat $TEMPASSIN/data
echo "Publishing..."

    pack_z_block files/add data
    if [ $? == 0 ]
    then
	    echo "cool"
    else
	    echo "not?"
	    exit 2
    fi
}

title(){
    echo "File block creator"
    echo "=================="
}


if [ ! -z $1 ]; then
	case $1 in
		help) usage; exit;;
		add) add $2; exit;;
		*) usage; exit;;
	esac
else usage
fi