#include <iostream>
#include <fstream>
#include <string>
#include "antlr4-runtime.h"
#include "PlSqlLexer.h"
#include "PlSqlParser.h"

using namespace antlr4;
using namespace std;

string parseInput(string inputFileName){
    ifstream inputFile (inputFileName);
	if (inputFile.is_open()) {
		ANTLRInputStream input(inputFile);
		PlSqlLexer lexer(&input);
		CommonTokenStream tokens(&lexer);

		tokens.fill();
		for (auto token : tokens.getTokens()) {
			std::cout << token->toString() << std::endl;
		}

		PlSqlParser parser(&tokens);
		tree::ParseTree *tree = parser.sql_script();

		inputFile.close();
		return tree->toStringTree(&parser);
	}
}