#pragma once

/**
 * helper class to iterate all free clusters of the Filesystem.
 * starts at cluster number 2 and then iterates over all subsequent clusters
 * stopping at the free ones
 */
class FreeClusterIterator {

	FS& fs;
	ClusterNr cur;

public:

	FreeClusterIterator(FS& fs) : fs(fs), cur(2) {

	}

	/** get the next free cluster that is available */
	ClusterNr next() {

		// TODO: end of filesystem reached

		while(true) {
			const ClusterNr tmp = fs.getNextCluster(cur);
			if (tmp.isFree()) {return cur;}
			++cur;
		}

	}

};