package dev.peerat.parser;

import java.io.BufferedReader;
import java.io.BufferedWriter;

import dev.peerat.parser.state.StateTree;

public class Parser<E>{

	private Tokenizer tokenizer;
	private StateTree<E> state;
	
	public Parser(){}
	
	public void setTokenizer(Tokenizer tokenizer){
		this.tokenizer = tokenizer;
	}
	
	public void setStateTree(StateTree<E> stateTree){
		this.state = stateTree;
	}
	
	public final void parse(BufferedReader reader, E container) throws Exception{
		this.tokenizer.reset();
		this.tokenizer.parse(reader);
		
		this.state.seed(new TokenValidator(tokenizer.getTokens().toArray(new Token[0])), container);
	}
	
	public final void parse(String line, E container) throws Exception{
		this.tokenizer.reset();
		this.tokenizer.parse(line);
		
		this.state.seed(new TokenValidator(tokenizer.getTokens().toArray(new Token[0])), container);
	}
	
	public final void parseStream(BufferedReader reader, E container) throws Exception{
		
	}
	
	//tmp
	public void build(BufferedWriter writer) throws Exception{
		Token[] confirmed = new Token[TokenValidator.MAX_VALIDATE];
		System.arraycopy(tokenizer.getTokens().toArray(), 0, confirmed, 0, confirmed.length);
		int line = 1;
		int character = 1;
		for(Token token : confirmed){
			while(token.getLineNumber() != line){
				writer.write("\n"+(++line));
				character = 1;
			}
			while(token.getCharacterNumber() != character){
				writer.write(" ");
				character++;
			}
			writer.write(token.getValue());
			character+=token.getValue().length();
		}
		writer.flush();
		writer.close();
	}
}