Vpasssync

#!/bin/zsh

function Mergedb()
{
	local res;
	if [ "$1" = "new" ]; then
		echo "changing password";
		keepassxc-cli merge "$2" "$3";
		res=$?;
	elif [ "$1" = "same" ]; then
		echo "same password";
		keepassxc-cli merge -s "$2" "$3";
		res=$?;
	else
		res=1;
	fi
	return $res;
}

. Vglobals

backupdir="$PATH_TO_CACHE_FOLDER/keepass";
backup="$backupdir/Database_backup.kdbx";

networkfile="Database_net.kdbx";
networkdir="$HOME/Downloads";

if ! [ -e "$KEEPASS_DATABASE_FILE" ]; then
	echo "database $KEEPASS_DATABASE_FILE doesn't exist";
	exit 1;
fi

if ! [ -d "$backupdir" ]; then
	mkdir -p "$backupdir";

	if ! [ -d "$backupdir" ]; then
		echo "couldn't create backup directory";
		exit 1;
	fi
fi

flags="same"
if [ "$#" -gt 0 ] && [ "$1" = "newpass" ]; then
	echo "password in local database was changed";
	flags="new";
fi
	

# keep old backup backed up
cp "$backup" "$backup.old";
echo "backup backed up)";
cp "$KEEPASS_DATABASE_FILE" "$backup";
echo "currently used file is backed up";


# obtain file from network
rclone copy "$CLOUD_BACKUP_DIR/$networkfile" "$networkdir" && echo "loaded copy from cloud";

if ! [ -e "$networkdir/$networkfile" ]; then
	echo "network file wasn't downloaded";
else
	echo "merging network file to local backup...";
	cp "$networkdir/$networkfile" "$backupdir/$networkfile.old";
	if ! Mergedb "$flags" "$backup" "$networkdir/$networkfile"; then
		echo "maybe the password you've provided is wrong, try again:";

		if ! Mergedb "$flags" "$backup" "$networkdir/$networkfile"; then
			echo "or maybe you don't know the password((";
			rm "$networkdir/$networkfile";
			exit 1
		fi
	fi
	# now backup file has all changes

	cp "$backup" "$KEEPASS_DATABASE_FILE";
	
	cp "$backup" "$networkdir/$networkfile";
	# send network file back to online storage
	rclone copyto "$networkdir/$networkfile" "$CLOUD_BACKUP_DIR/$networkfile.new";

	if rclone ls "$CLOUD_BACKUP_DIR" | grep -q "$networkfile.new"; then
		echo "backup successfully copied to cloud";
		rclone moveto "$CLOUD_BACKUP_DIR/$networkfile.new" "$CLOUD_BACKUP_DIR/$networkfile";

		if rclone ls "$CLOUD_BACKUP_DIR" | grep -q "$networkfile.new"; then
			echo "couldn't replace old file with a new one on remote";
			exit 1;
		else
			echo "file is replaced on remote";
			rm "$networkdir/$networkfile";
			echo "local redundant copy deleted";
		fi
	else
		echo "backup wasn't copied to cloud";
		exit 1;
	fi
fi

echo "done";