package uk.org.brindy.android.moneytracker;
import java.io.File;
import java.io.IOException;
import java.text.DecimalFormat;
import java.util.Date;
import java.util.List;
import uk.org.brindy.android.moneytracker.CurrencyKeyboard.Listener;
import android.app.AlertDialog;
import android.app.ListActivity;
import android.content.Context;
import android.content.DialogInterface;
import android.content.Intent;
import android.os.Bundle;
import android.os.Environment;
import android.view.ContextMenu;
import android.view.Menu;
import android.view.MenuItem;
import android.view.SubMenu;
import android.view.View;
import android.view.ViewGroup;
import android.view.ContextMenu.ContextMenuInfo;
import android.view.View.OnClickListener;
import android.view.View.OnFocusChangeListener;
import android.widget.AdapterView;
import android.widget.BaseAdapter;
import android.widget.EditText;
import android.widget.ImageButton;
import android.widget.ListView;
import android.widget.TextView;
import android.widget.Toast;
import android.widget.AdapterView.AdapterContextMenuInfo;
import android.widget.AdapterView.OnItemClickListener;
public class MoneyTracker extends ListActivity implements Listener,
OnItemClickListener {
private static final int ACTIVITY_ADD_EXPENSE = 1;
private static final int ACTIVITY_EDIT_EXPENSE = 2;
private static final int EDIT_EXPENSE_MENU_ID = Menu.FIRST + 1;
private static final int CLEAR_EXPENSES_MENU_ID = Menu.FIRST + 3;
private static final int BACKUP_MENU_ID = Menu.FIRST + 4;
private static final int BACKUP_SUBMENU_NOW_ID = Menu.FIRST + 5;
private static final int BACKUP_SUBMENU_RESTORE_ID = Menu.FIRST + 6;
private static final int CONTEXT_MENU_EDIT = Menu.FIRST + 7;
private static final int CONTEXT_MENU_DELETE = Menu.FIRST + 8;
private ListView mExpenses;
private EditText mDisposable;
private TextView mRemaining;
private ExpensesDbHelper mDbHelper;
private boolean shouldShow;
private static final DecimalFormat FORMATTER = (DecimalFormat) DecimalFormat
.getCurrencyInstance();
static {
FORMATTER.setNegativePrefix(FORMATTER.getCurrency().getSymbol());
FORMATTER.setNegativeSuffix("");
}
/** Called when the activity is first created. */
@Override
public void onCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
setContentView(R.layout.main);
ImageButton add = (ImageButton) findViewById(R.id.add);
add.requestFocus();
mExpenses = (ListView) findViewById(android.R.id.list);
mExpenses.setLongClickable(true);
registerForContextMenu(mExpenses);
mExpenses.setOnItemClickListener(this);
mDbHelper = new ExpensesDbHelper(this);
mRemaining = (TextView) findViewById(R.id.remaining);
mDisposable = (EditText) findViewById(R.id.disposable);
mDisposable.setText(FORMATTER.format(mDbHelper.getDisposable()));
mDisposable.setInputType(0);
mDisposable.setOnClickListener(new OnClickListener() {
@Override
public void onClick(View v) {
CurrencyKeyboard.show(mDisposable, MoneyTracker.this);
}
});
mDisposable.setOnFocusChangeListener(new OnFocusChangeListener() {
@Override
public void onFocusChange(View v, boolean hasFocus) {
if (hasFocus && shouldShow) {
CurrencyKeyboard.show(mDisposable, MoneyTracker.this);
}
shouldShow = true;
}
});
ImageButton addButton = (ImageButton) findViewById(R.id.add);
addButton.setOnClickListener(new View.OnClickListener() {
public void onClick(View v) {
onAddExpense();
}
});
fillData();
if (mDbHelper.fetchAllExpenses().size() == 0) {
shouldShow = true;
}
}
@Override
public void onItemClick(AdapterView<?> adapter, View view, int position,
long id) {
doEdit(position);
}
public void onCreateContextMenu(ContextMenu menu, View v,
ContextMenuInfo menuInfo) {
super.onCreateContextMenu(menu, v, menuInfo);
menu.add(0, CONTEXT_MENU_EDIT, 0, "Edit");
menu.add(0, CONTEXT_MENU_DELETE, 0, "Delete");
}
public boolean onContextItemSelected(MenuItem item) {
AdapterContextMenuInfo info = (AdapterContextMenuInfo) item
.getMenuInfo();
switch (item.getItemId()) {
case CONTEXT_MENU_EDIT:
doEdit(info.position);
return true;
case CONTEXT_MENU_DELETE:
onDeleteExpense(info.position);
return true;
default:
return super.onContextItemSelected(item);
}
}
@Override
public boolean onCreateOptionsMenu(Menu menu) {
super.onCreateOptionsMenu(menu);
menu.add(0, CLEAR_EXPENSES_MENU_ID, 0, R.string.menu_clear_expenses);
SubMenu sub = menu.addSubMenu(0, BACKUP_MENU_ID, 0,
R.string.menu_backup);
if (Environment.MEDIA_MOUNTED.equals(Environment
.getExternalStorageState())) {
sub.add(BACKUP_MENU_ID, BACKUP_SUBMENU_NOW_ID, 0,
R.string.menu_backup_now);
sub.add(BACKUP_MENU_ID, BACKUP_SUBMENU_RESTORE_ID, 0,
R.string.menu_backup_restore);
}
return true;
}
@Override
public boolean onMenuItemSelected(int featureId, MenuItem item) {
boolean result = super.onMenuItemSelected(featureId, item);
switch (item.getItemId()) {
case EDIT_EXPENSE_MENU_ID:
onEditExpense();
return true;
case CLEAR_EXPENSES_MENU_ID:
onClearExpenses();
return true;
case BACKUP_MENU_ID:
return !isMediaReady();
case BACKUP_SUBMENU_NOW_ID:
onBackupNow();
return true;
case BACKUP_SUBMENU_RESTORE_ID:
onBackupRestore();
return true;
}
fillData();
return result;
}
@Override
public void setAmount(double d) {
mDbHelper.setDisposable(d);
calculateRemaining();
}
@Override
protected void onListItemClick(ListView l, View v, int position, long id) {
onEditExpense();
}
@Override
protected void onActivityResult(int requestCode, int resultCode, Intent data) {
super.onActivityResult(requestCode, resultCode, data);
if (resultCode == RESULT_CANCELED) {
return;
}
Bundle extras = data.getExtras();
switch (requestCode) {
case ACTIVITY_ADD_EXPENSE:
onAddExpenseResult(extras);
break;
case ACTIVITY_EDIT_EXPENSE:
switch (resultCode) {
default:
onUpdateExpenseResult(extras);
break;
case ExpenseEdit.RESULT_DELETE:
onDeleteExpenseResult(extras);
break;
}
break;
}
fillData();
}
private void onDeleteExpenseResult(Bundle extras) {
Long rowID = extras.getLong(Expense.KEY_ROWID);
mDbHelper.deleteExpense(rowID);
fillData();
}
private void onUpdateExpenseResult(Bundle extras) {
Expense exp;
Long rowID = extras.getLong(Expense.KEY_ROWID);
if (rowID != null) {
exp = mDbHelper.findExpenseById(rowID);
exp.setValue(extras.getDouble(Expense.KEY_VALUE));
exp.setDescription(extras.getString(Expense.KEY_DESC));
exp.setDate(new Date(extras.getLong(Expense.KEY_DATE)));
exp.setCredit(extras.getBoolean(Expense.KEY_CREDIT));
mDbHelper.updateExpense(exp);
}
}
private void onAddExpenseResult(Bundle extras) {
Expense exp;
exp = new Expense();
exp.setValue(extras.getDouble(Expense.KEY_VALUE));
exp.setDescription(extras.getString(Expense.KEY_DESC));
exp.setDate(new Date(extras.getLong(Expense.KEY_DATE)));
exp.setCredit(extras.getBoolean(Expense.KEY_CREDIT));
mDbHelper.createExpense(exp);
}
public static String formatRemaining(double remaining) {
return FORMATTER.format(remaining);
}
private void calculateRemaining() {
double remaining = 0.0;
if (mDisposable.getText().toString().trim().length() > 0) {
remaining = this.mDbHelper.remaining();
}
String level = remaining < 0.0 ? " over budget" : " remaining";
mRemaining.setText(formatRemaining(remaining) + level);
}
private void fillData() {
calculateRemaining();
final Context context = this;
final List<Expense> expenses = mDbHelper.fetchAllExpenses();
setListAdapter(new BaseAdapter() {
public int getCount() {
return expenses.size();
}
public Object getItem(int position) {
return expenses.get(position);
}
public long getItemId(int position) {
Expense expense = expenses.get(position);
return expense.getId();
}
public View getView(final int position, View convertView,
ViewGroup parent) {
final Expense exp = expenses.get(position);
View view = convertView;
if (null == view) {
view = View.inflate(context, R.layout.expenses_row, null);
}
view.setTag(exp);
TextView value = (TextView) view.findViewById(R.id.value);
String text = FORMATTER.format(exp.getValue());
if (exp.isCredit()) {
text = "+" + text;
} else {
text = "-" + text;
}
value.setText(text);
TextView desc = (TextView) view.findViewById(R.id.description);
desc.setText(exp.getDescription());
TextView date = (TextView) view.findViewById(R.id.date);
date.setText(Formatter.format(exp.getDate()));
return view;
}
});
}
private void onAddExpense() {
Intent i = new Intent(this, ExpenseEdit.class);
startActivityForResult(i, ACTIVITY_ADD_EXPENSE);
}
private void onEditExpense() {
if (-1 != getSelectedItemPosition()) {
doEdit(getSelectedItemPosition());
}
}
private void doEdit(int position) {
Expense expense = mDbHelper.findExpenseById(mExpenses
.getItemIdAtPosition(position));
doEdit(expense);
}
private void doEdit(Expense expense) {
Intent i = new Intent(this, ExpenseEdit.class);
i.putExtra(Expense.KEY_ROWID, expense.getId());
i.putExtra(Expense.KEY_VALUE, expense.getValue());
i.putExtra(Expense.KEY_DESC, expense.getDescription());
i.putExtra(Expense.KEY_DATE, expense.getDate().getTime());
i.putExtra(Expense.KEY_CREDIT, expense.isCredit());
startActivityForResult(i, ACTIVITY_EDIT_EXPENSE);
}
private void onDeleteExpense(final int position) {
AlertDialog.Builder builder = new AlertDialog.Builder(this);
builder.setTitle("Delete this item?");
builder.setItems(new String[] { "Yes", "No" },
new DialogInterface.OnClickListener() {
public void onClick(DialogInterface dialog, int which) {
if (which == 0) {
long id = mExpenses.getItemIdAtPosition(position);
mDbHelper.deleteExpense(id);
fillData();
}
}
});
builder.show();
}
private void onClearExpenses() {
AlertDialog.Builder builder = new AlertDialog.Builder(this);
builder.setTitle("Clear all expenses?");
builder.setItems(new String[] { "Yes", "No" },
new DialogInterface.OnClickListener() {
public void onClick(DialogInterface dialog, int which) {
if (which == 0) {
mDbHelper.deleteAllExpenses();
fillData();
}
}
});
builder.show();
}
private void onBackupNow() {
if (isMediaReady()) {
final File backup = getBackupFile();
if (backup.exists()) {
final Context ctx = this;
AlertDialog.Builder builder = new AlertDialog.Builder(this);
builder.setTitle("Overwrite existing backup?");
builder.setItems(new String[] { "Yes", "No" },
new DialogInterface.OnClickListener() {
public void onClick(DialogInterface dialog,
int which) {
if (which == 0) {
backup(backup);
} else {
Toast.makeText(ctx, "Backup cancelled",
Toast.LENGTH_LONG).show();
}
}
});
builder.show();
} else {
backup(backup);
}
}
}
private void restore(final File backup, final Context ctx) {
try {
mDbHelper.restore(backup);
mDisposable.setText(String.valueOf(mDbHelper.getDisposable()));
fillData();
Toast.makeText(ctx, R.string.backup_restored, Toast.LENGTH_LONG)
.show();
} catch (Exception ex) {
Toast.makeText(ctx, ex.getMessage(), Toast.LENGTH_LONG);
}
}
private void backup(File backup) {
try {
mDbHelper.backup(backup);
Toast.makeText(this, R.string.backup_complete, Toast.LENGTH_LONG)
.show();
} catch (IOException e) {
Toast.makeText(
this,
"Unexpected error while backing up (" + e.getMessage()
+ ")", Toast.LENGTH_LONG).show();
}
}
private File getBackupFile() {
File dir = Environment.getExternalStorageDirectory();
File backup = new File(dir, "MoneyTracker.backup");
return backup;
}
private void onBackupRestore() {
if (isMediaReady()) {
final File backup = getBackupFile();
if (!backup.exists()) {
Toast.makeText(this, R.string.backup_does_not_exist,
Toast.LENGTH_LONG).show();
} else {
final Context ctx = this;
AlertDialog.Builder builder = new AlertDialog.Builder(this);
builder.setTitle("Really restore from backup?");
builder.setItems(new String[] { "Yes", "No" },
new DialogInterface.OnClickListener() {
public void onClick(DialogInterface dialog,
int which) {
if (which == 0) {
restore(backup, ctx);
} else {
Toast.makeText(ctx, "Restore cancelled",
Toast.LENGTH_LONG).show();
}
}
});
builder.show();
}
}
}
private boolean isMediaReady() {
if (Environment.MEDIA_MOUNTED.equals(Environment
.getExternalStorageState())) {
return true;
}
Toast.makeText(this, R.string.no_external_media, Toast.LENGTH_LONG)
.show();
return false;
}
}