package innovimax.mixthem.operation;

import innovimax.mixthem.MixException;
import innovimax.mixthem.arguments.RuleParam;
import innovimax.mixthem.arguments.ParamValue;

import java.util.Arrays;
import java.util.Collections;
import java.util.Iterator;
import java.util.List;
import java.util.Map;

/**
* <p>Zips two lines on a common field.</p>
* @see ILineOperation
* @author Innovimax
* @version 1.0
*/
public class DefaultLineZipping extends AbstractLineOperation {
	
	private final ZipType type;
	private final String sep;
	
	/**
	* Constructor
	* @param type The type of zip to process
 	* @param params The list of parameters (maybe empty)
	* @see innovimax.mixthem.operation.ZipType
	* @see innovimax.mixthem.arguments.RuleParam
	* @see innovimax.mixthem.arguments.ParamValue
	*/
	public DefaultLineZipping(final ZipType type, final Map<RuleParam, ParamValue> params) {
		super(params);
		this.type = type;
		this.sep = params.getOrDefault(RuleParam.ZIP_SEP, ZipOperation.DEFAULT_ZIP_SEPARATOR.getValue()).asString();	
	}
	
	@Override
	public void process(final String line1, final String line2, final LineResult result) throws MixException {
		result.reset();
		switch (this.type) {
			case LINE:
				result.setResult((line1 != null ? line1 : "") + this.sep + (line2 != null ? line2 : ""));
				break;
			case CELL:					
				final Iterator<String> iterator1 = line1 != null ? Arrays.asList(line1.split(CellOperation.DEFAULT_SPLIT_CELL_REGEX.getValue().asString())).iterator() : Collections.emptyIterator();
				final Iterator<String> iterator2 = line2 != null ? Arrays.asList(line2.split(CellOperation.DEFAULT_SPLIT_CELL_REGEX.getValue().asString())).iterator() : Collections.emptyIterator();				
				final StringBuffer buf = new StringBuffer();
				while (iterator1.hasNext() || iterator2.hasNext()) {						
					final String cell1 = iterator1.hasNext() ? iterator1.next() : "";
					final String cell2 = iterator2.hasNext() ? iterator2.next() : "";					
					if (buf.length() > 0) {						
						buf.append(CellOperation.DEFAULT_CELL_SEPARATOR.getValue().asString());
					}					
					buf.append(cell1 + this.sep + cell2);					
				}
				result.setResult(buf.toString());
		}
	}
	
	@Override
	public void process(final List<String> lineRange, final LineResult result) throws MixException {
		//process(lineRange.get(0), lineRange.get(1), result);
		result.reset();
		System.out.println("RANGE="+lineRange.toString());				
		switch (this.type) {
			case LINE:
				if (lineZipable(lineRange)) {	
					StringBuilder zip = new StringBuilder();
					int index = 0;
					for (String line : lineRange) {
						if (index > 0) {
							zip.append(this.sep);
						}
						zip.append(line);
						index++;
					}
					result.setResult(zip.toString());
				}
				break;
			case CELL:
				if (cellZipable(lineRange)) {	
					//TODO
				}
			}
		}
	}
	
	private boolean lineZipable(final List<String> lineRange) {		
		for (int i=0; i < lineRange.size(); i++) {			
			if (lineRange.get(i) == null) {
				return false;				
			}
		}
		return true;	
	}

	private boolean cellZipable(final List<String> lineRange) {
		return false;
	}

}

@@ -2829,21 +2829,16 @@
 O%0A%09%09%09%09%7D%0A
-%09%09%09%7D%0A
 %09%09%7D%0A%09%7D%0A%09

Update DefaultLineZipping.java