package be.jeffcheasey88.peeratcode.parser.java.operations;

import java.util.List;
import java.util.function.BiFunction;
import java.util.regex.Matcher;
import java.util.regex.Pattern;

import be.jeffcheasey88.peeratcode.parser.java.ArrayBuffer;
import be.jeffcheasey88.peeratcode.parser.java.CleanerPool;
import be.jeffcheasey88.peeratcode.parser.java.JavaElement;

public class ThrowOperation extends JavaElement{
	
	private static Pattern PATTERN = Pattern.compile("^(\\s*throw\\s+([^;]+);)");

	private String toChange;
	
	public ThrowOperation(){}
	
	@Override
	public int parse(String content, CleanerPool global, CleanerPool local) throws Exception {
		Matcher matcher = PATTERN.matcher(content);
		matcher.lookingAt();
		
		//To update for native obj
		this.toChange = matcher.group(2);
		
		return matcher.group(1).length();
	}

	@Override
	public void build(ArrayBuffer<String> buffer, int tab) throws Exception{
		super.build(buffer, tab);
		buffer.append((s) -> s+="throw "+toChange+";");
		buffer.add("");
	}

	
	@Override
	public <E extends JavaElement> E find(java.util.function.Function<JavaElement, Boolean> search, java.util.function.Function<List<JavaElement>, Boolean> deep, List<JavaElement> trace){
		return search.apply(this) ? (E)this : null;
	}
	
	@Override
	public <E extends JavaElement> E find(BiFunction<JavaElement, List<JavaElement>, Boolean> search, List<JavaElement> trace){
		trace.add(this);
		return search.apply(this, trace) || trace.remove(trace.size()-1) == null ? (E)this : null;
	}

}