Miner.m

classdef Miner < handle
    
	properties
	blockchain
	end
    
	methods
	function obj = Miner(blockchain)
		obj.blockchain = blockchain;
	end

	function mine(obj, newData)
		% get the last block on the current blockchain
		latestBlock = obj.blockchain.getLatest();
		% construct a new block
		newBlock = Block(latestBlock.index+1,...
		newData,...
		latestBlock.selfHash);
		% find appropriate selfhash
		not_found = true;
		iter = 1;
		Opt.Method = 'SHA-256';
		Opt.Input  = 'ascii';
        
		tic
		while(not_found)
		newHash = DataHash([strcat(newBlock.getCombined(), num2str(iter))]);            
			if(strcmp(newHash(1 : 3), '000'))             
				newBlock.nonce = iter; % solve violently
				newBlock.selfHash = newHash; % if the approproate selfhash is found
				disp(newHash) 
				obj.blockchain.addBlock(newBlock); % add selfhash to blockchain
				break
			end
		iter = iter + 1;
		end
		toc
        
	end
	end
end