import java.io.*;
import java.util.*;
public class LetterGenerator {
   private ArrayList text = new ArrayList(40);
   private String textFileName; 
   private Iterator textLines; 
   private String accountType;
   public LetterGenerator(String aTextFileName, String anAccountType) {
      textFileName = aTextFileName;
      accountType = anAccountType;
   }
   public static void main(String[] argv) throws IOException {
     if (argv.length == 2) 
        (new LetterGenerator(argv[0], argv[1])).run();
     else 
        System.out.print("Usage:\njava LetterGenerator textFileName accountTypeToSelect\n");
   }
   private void printEnvelope(BankAccount anAccount) {
      String line;
      Name name = anAccount.getName();
      Address address = anAccount.getAddress();
      System.out.println("____________________________________________________");
      System.out.println("");
      System.out.println(name.getNameString());
      if ((line = address.getLine1()) != null) System.out.println(line);
      if ((line = address.getLine2()) != null) System.out.println(line);
      if ((line = address.getLine3()) != null) System.out.println(line);
   }
   private void printLetter( BankAccount anAccount ) {
      Name name = anAccount.getName();
      System.out.println("____________________________________________________");
      System.out.println("");
      System.out.println("Dear " + name.getTitle() + name.getLastName() + ',');
      System.out.println("");
      textLines = text.iterator();
      while (textLines.hasNext()) 
         System.out.println(textLines.next());
   }
   private void run() throws IOException {
      String line;
      Iterator accounts = BankAccountFile.getCurrentInstance().getAccountsForType(accountType);
      BufferedReader textStream = new BufferedReader(new FileReader(textFileName));     
      while ((line = textStream.readLine()) != null)    // While not end-of-file
         text.add((Object)line);
      textStream.close();
      while (accounts.hasNext()) {
         BankAccount account = (BankAccount)accounts.next();
         printEnvelope(account);
         printLetter(account);
      }
   }
}