pass 2

package assembler;

import java.io.BufferedReader;
import java.io.BufferedWriter;
import java.io.FileReader;
import java.io.FileWriter;
import java.io.IOException;
import java.util.ArrayList;

public class Pass2 {

    private int lineNumber = 0;
    private ArrayList<String> labels = new ArrayList<>();
    private ArrayList<String> operationCodes = new ArrayList<>();
    private ArrayList<String> operands = new ArrayList<>();
    private ArrayList<String> Addresses = new ArrayList<>();
    private ArrayList<String> listingfile = new ArrayList<>();
    private ArrayList<String> objectProgram = new ArrayList<>();
    private static final String FILENAME2 = "C:\\Users\\karem\\Desktop\\listingfile.txt";
    private static final String FILENAME3 = "C:\\Users\\karem\\Desktop\\objectprogram.txt";

    Pass2(ArrayList<String> labels,ArrayList<String> operationCodes,ArrayList<String> operands,ArrayList<String> Addresses){
    this.labels = labels;
    this.operationCodes = operationCodes;
    this.operands = operands;
    this.Addresses = Addresses;
    this.lineNumber = 0;
    this.run();
    }

    private void run(){
        for(int i = 0; i < labels.size();i++){
        String objectCode = getObjectCode(operationCodes.get(i), operands.get(i));
        writeListing(labels.get(i), operationCodes.get(i), operands.get(i), objectCode);
        writeObject(labels.get(i), operationCodes.get(i), objectCode);
        }
    }

    private String getObjectCode(String operationCode, String operand) {
        // search for operation Code in the mnemonic Table
        boolean found = false;
        String mnemonicValue = "00";
        String operandAddress;
        String objectCode = new String();
        if (found) {
            if (operand == null) {
                operandAddress = "0000";
                objectCode = mnemonicValue.concat(operandAddress);
            } else {
                // search for operand in the symtab
                // if found
                // operandAddress = symbol value;
                // objectCode = mnemonicValue.concat(operandAddress);
                // if not found (Un Defined Symbol)
                // operandAddress = "0000";
                // ERROR
            }
        } else if (operationCode.equals("WORD")) {
            String hex = Integer.toHexString(Integer.parseInt(operand));
            if (hex.length() == 1) {
                String concat = "00000";
                hex = concat.concat(hex);
            } else if (hex.length() == 2) {
                String concat = "0000";
                hex = concat.concat(hex);
            } else if (hex.length() == 3) {
                String concat = "000";
                hex = concat.concat(hex);
            } else if (hex.length() == 4) {
                String concat = "00";
                hex = concat.concat(hex);
            } else if (hex.length() == 5) {
                String concat = "0";
                hex = concat.concat(hex);
            }
            objectCode = hex;
        } else if (operationCode.equals("BYTE")) {
            if (operand.charAt(0) == 'X') {
                objectCode = operand.substring(2, operationCode.length());
            } else if (operand.charAt(0) == 'C') {
                for (int i = 2; i < operand.length() - 1; i++) {
                    objectCode = objectCode.concat(Integer.toHexString((int) operand.charAt(i)));
                }
            }
        }
        // if object code will not fit into the current text record
        // write text record to object program
        // intialize new text record
        // add object code to text record
        return objectCode;
    }

    private void writeListing(String label, String operationCode, String operand, String objectCode) {
        if (label == null) {
            label = "\t";
        }
        if (operand == null) {
            operand = "\t";
        }
        // while(label.length() < 9){
        // label = label;
        // }
        //
        // while(operationCode.length() < 6){
        // operationCode = operationCode.concat(" ");
        // }
        // listing file
        lineNumber++;
        int line = lineNumber * 5;
        String listing;
        if (lineNumber == 1) {
            listing = "Line" + "\t" + "LOC" + "\t\t" + "Source Statement" + "\t\t" + "Object Code" + "\n";
            listingfile.add(listing);
        }
        if (operationCode.equals("START") || operationCode.equals("RESB") || operationCode.equals("RESW")) {
            listing = String.valueOf(line) + "\t" + "LOC" + "\t" + label + "\t" + operationCode + "\t" + operand + "\n";
            listingfile.add(listing);
        } else if (operationCode.equals("END")) {
            listing = String.valueOf(line) + "\t" + "LOC" + "\t" + label + "\t" + operationCode + "\t" + operand;
            listingfile.add(listing);
            writeListingFile();
        } else {
            listing = String.valueOf(line) + "\t" + "LOC" + "\t" + label + "\t" + operationCode + "\t" + operand + "\t"
                    + objectCode + "\n";
            listingfile.add(listing);
        }
        // objectProgram

    }

    private void writeObject(String label, String operationCode, String objectCode) {
        String objectLine;
        if (operationCode.equals("START")) {
            while (label.length() != 6) {
                label = label.concat(" ");
            }
            objectLine = "H" + label + "STADDR" + "LENPRO" + "\n";
            objectProgram.add(objectLine);
            writeObjectProgramFile();
        }

    }

    private void writeListingFile() {
        // Listing File
        try (BufferedWriter bw = new BufferedWriter(new FileWriter(FILENAME2))) {
            for (int i = 0; i < listingfile.size(); i++) {
                bw.write(listingfile.get(i));
            }
            bw.close();
        } catch (IOException e) {

            e.printStackTrace();
        }

    }

    private void writeObjectProgramFile() {
        // objectProgram file
        try (BufferedWriter bw = new BufferedWriter(new FileWriter(FILENAME3))) {
            for (int i = 0; i < objectProgram.size(); i++) {
                bw.write(objectProgram.get(i));
            }
            bw.close();
        } catch (IOException e) {

            e.printStackTrace();
        }
    }


}