import java.awt.*;
import java.util.*;
import java.lang.*;

import TypePanel;
import InterestPanel;
import NamePanel;
import DepositPanel;
import NewControlsPanel;
import LabelPanel;
import TransferChoicePanel;
import AccountControls;

//
// Dialog classes
//

class ErrorDialog extends Dialog {
     Label message;
     Button OKButton;

     public ErrorDialog(Frame parent, String  error) {
	super(parent, new String("Error"), true);

	message=new Label(error);
	OKButton=new Button("OK");
	add("Center",message);
	add("South",OKButton);

	pack();
     }

    public boolean handleEvent(Event event) {
	if(event.id==Event.ACTION_EVENT) {
	  this.dispose();
	  return true;
	}
	return false;
    }
}

class TransferDialog extends Dialog {
     BankAccounts accounts;

     TransferChoicePanel accountsPanel;
     LabelPanel ammountPanel;
     Button transfer;
     TextArea output;

     public TransferDialog(Frame parent, BankAccounts accts, TextArea out) {
	super(parent, new String("Transfer"), true);

	accounts=accts;
	output=out;
	
	setLayout(new BorderLayout(3,1));

	accountsPanel=new TransferChoicePanel(accounts);
	add("North",accountsPanel);
	accountsPanel.show();

	ammountPanel=new LabelPanel("Ammount: ");
	add("Center",ammountPanel);
	ammountPanel.show();

	transfer=new Button("Transfer");
	add("South",transfer);

	pack();
     }

    public boolean handleEvent(Event event) {
	if(event.id==Event.ACTION_EVENT) {
	   if(event.target==transfer)
	     { Double value=new Double(ammountPanel.text.getText());
	       Account fromAccount;
	       Account toAccount;
	       boolean gotmoney=false;

	       try {
	         fromAccount= accounts.getAccount(accountsPanel.from.getSelectedItem());
	         toAccount= accounts.getAccount(accountsPanel.to.getSelectedItem());
	       } catch(Exception e) {
		   output.appendText("Account does not exist");
		   this.dispose();
		   return true;
	       }
	       
	       try { fromAccount.Withdraw(value.doubleValue());
		     gotmoney= true;
	       }
	       catch(Exception e) { 
		  output.appendText("Unable to withdraw from account"+ fromAccount.Name());
	       }

	       if(gotmoney) {
		  try { toAccount.Deposit(value.doubleValue());
	              }
	          catch(Exception e) { 
		    output.appendText("Unable to deposit into account"+ toAccount.Name());
		    try { fromAccount.Deposit(value.doubleValue());
	                }
	            catch(Exception e1) { 
		      output.appendText("Unable to put money back in "+ fromAccount.Name());
	            }
	          }
		}

	       this.dispose();
	       return true;
	     }
	}
	return false;
    }
}

class NewAccountDialog extends Dialog {
    Bank bank;

    NewControlsPanel controls;
    Button create;

    public NewAccountDialog(Frame parent, Bank mainBank, TextArea out) {
	super(parent, new String("Create new account"), true);
	
	bank=mainBank;

	setLayout(new BorderLayout(5,5));

	controls=new NewControlsPanel();
	add("Center",controls);
	controls.show();

	create=new Button("Create account");
	add("South",create);

	pack();
   }

    public boolean action(Event event, Object obj) {
	if(event.target==create) {
		Double interest;
		Account newAccount;

		// creation of a new account was requested
		if(controls.typePanel.accountType.getSelectedItem().equals("Checking")) {
			// checking account
			interest=new Double(controls.interestPanel.text.getText());
			try {
			   newAccount=new CheckingAccount(controls.namePanel.text.getText(),
							  interest.doubleValue(),bank.output);
			} catch(Exception e) {
			     bank.output.appendText("Account has no name");
			     return true;
			}
		}
		else
		if(controls.typePanel.accountType.getSelectedItem().equals("Savings")) {
			// savings account
			interest=new Double(controls.interestPanel.text.getText());
			try {
			   newAccount=new SavingsAccount(controls.namePanel.text.getText(),
							  interest.doubleValue(),bank.output);
			} catch(Exception e) {
			     bank.output.appendText("Account has no name");
			     return true;
			}
		}
		else
		if(controls.typePanel.accountType.getSelectedItem().equals("CD")) {
			// CD account
			interest=new Double(controls.interestPanel.text.getText());
			Double deposit=new Double(controls.depositPanel.text.getText());
			Integer period=new Integer(controls.periodPanel.text.getText());
			try {
			   newAccount=new CDAccount(controls.namePanel.text.getText(),
						    deposit.doubleValue(),
						    period.intValue(),
						    interest.doubleValue(),bank.output);
			} catch(Exception e) {
			     bank.output.appendText("Account has no name");
			     return true;
			}
		}
		else
		if(controls.typePanel.accountType.getSelectedItem().equals("Loan")) {
			// Loan account
			interest=new Double(controls.interestPanel.text.getText());
			Double loan=new Double(controls.depositPanel.text.getText());
			try {
			   newAccount=new LoanAccount(controls.namePanel.text.getText(),
							 loan.doubleValue(),
							 interest.doubleValue(),bank.output);
			} catch(Exception e) {
			     bank.output.appendText("Account has no name");
			     return true;
			}
		} // end of "switch" of account creation
		else return true;

	    // at this moment a new account has been succesfully created!
	    bank.accounts.addAccount(newAccount);

	    // Update the popup menu
	    //if(bank.accounts.size()==1)
		//bank.accountControls.accountChoice.removeItem("(no accounts)");
	    bank.accountControls.accountChoice.addItem(newAccount.Name());
	    bank.accountControls.accountChoice.select(newAccount.Name());

	    // free the dialog resources
	    this.dispose();
	    return true;
	  } // end of "create" event
	  else
	  if(event.target==controls.typePanel.accountType) {
		controls.depositPanel.text.setEditable(false);
		controls.periodPanel.text.setEditable(false);

		if(((String)obj).equals("CD")) {
		   controls.depositPanel.text.setEditable(true);
		   controls.periodPanel.text.setEditable(true);
		}
		else
		if(((String)obj).equals("Loan")) {
		   controls.depositPanel.text.setEditable(true);

		controls.depositPanel.text.setText("");
		controls.periodPanel.text.setText("");
		controls.interestPanel.text.setText("");
		}
	  } // end of action for type Choice

	return false;
    } // end of action method
} // end of class definition