package TP2;

import java.io.IOException;

import org.antlr.runtime.ANTLRFileStream;
import org.antlr.runtime.ANTLRInputStream;
import org.antlr.runtime.CharStream;
import org.antlr.runtime.CommonTokenStream;
import org.antlr.runtime.RecognitionException;
import org.antlr.runtime.Token;

import TP2.asd.Program.*;
import TP2.llvm.ProgramLLVM;
import TP2.llvm.ProgramLLVM.*;

import java.util.*;


/*
./gradlew build
java -jar build/libs/TP2.jar tests/fragment0/priority2.vsl
*/
public class Main {
  public static void main(String[] args) {
    try {
      // Set input
      CharStream input;
      if (args.length == 0) {
        // From standard input
        input = new ANTLRInputStream(System.in);
      } else {
        // From file name in first argument
        input = new ANTLRFileStream(args[0]);
      }

      // Instantiate Lexer
      VSLLexer lexer = new VSLLexer(input);
      CommonTokenStream tokens = new CommonTokenStream(lexer);


      // Instantiate Parser
      VSLParser parser = new VSLParser(tokens);

      // Parse
      ProgramImp ast = parser.program();

      // Pretty-print the program (to debug parsing)
      System.err.println("todo " + ast);

      System.out.println("\n\n PRETTYPRINTER VSK : \n--------------\n" + ast.prettyprinter() + "\n--------------\nFIN PRETTYPRINTER");

      // Verify the program semantic

      // Generate the intermediate representation
      System.out.println("todo");

      ProgramLLVMImpl astLLVM = ast.toLLVM();

      System.out.println("\n\n PRETTYPRINTER LLBD : \n--------------\n" + astLLVM.prettyprinter() + "\n--------------\nFIN PRETTYPRINTER");

      

    } catch (IOException | RecognitionException e) {
      e.printStackTrace();
      throw new RuntimeException("Unable to proceed");
    }
  }
}