/*
* Copyright © 2019 Damyan Ivanov.
* This file is part of MoLe.
* MoLe is free software: you can distribute it and/or modify it
* under the term of the GNU General Public License as published by
* the Free Software Foundation, either version 3 of the License, or
* (at your opinion), any later version.
*
* MoLe is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
* GNU General Public License terms for details.
*
* You should have received a copy of the GNU General Public License
* along with MoLe. If not, see .
*/
package net.ktnx.mobileledger.ui.activity;
import android.annotation.SuppressLint;
import android.database.Cursor;
import android.os.AsyncTask;
import android.os.Bundle;
import android.text.Editable;
import android.text.InputType;
import android.text.TextWatcher;
import android.util.Log;
import android.util.TypedValue;
import android.view.Gravity;
import android.view.Menu;
import android.view.MenuItem;
import android.view.MotionEvent;
import android.view.View;
import android.view.inputmethod.EditorInfo;
import android.widget.AutoCompleteTextView;
import android.widget.EditText;
import android.widget.ProgressBar;
import android.widget.TableLayout;
import android.widget.TableRow;
import android.widget.TextView;
import android.widget.Toast;
import com.google.android.material.floatingactionbutton.FloatingActionButton;
import com.google.android.material.snackbar.BaseTransientBottomBar;
import com.google.android.material.snackbar.Snackbar;
import net.ktnx.mobileledger.BuildConfig;
import net.ktnx.mobileledger.R;
import net.ktnx.mobileledger.async.DescriptionSelectedCallback;
import net.ktnx.mobileledger.async.SaveTransactionTask;
import net.ktnx.mobileledger.async.TaskCallback;
import net.ktnx.mobileledger.model.Data;
import net.ktnx.mobileledger.model.LedgerTransaction;
import net.ktnx.mobileledger.model.LedgerTransactionAccount;
import net.ktnx.mobileledger.model.MobileLedgerProfile;
import net.ktnx.mobileledger.ui.DatePickerFragment;
import net.ktnx.mobileledger.ui.OnSwipeTouchListener;
import net.ktnx.mobileledger.utils.Globals;
import net.ktnx.mobileledger.utils.LockHolder;
import net.ktnx.mobileledger.utils.MLDB;
import java.text.ParseException;
import java.util.ArrayList;
import java.util.Date;
import java.util.Locale;
import java.util.Objects;
import androidx.appcompat.widget.Toolbar;
import androidx.fragment.app.DialogFragment;
/*
* TODO: nicer progress while transaction is submitted
* TODO: reports
* TODO: get rid of the custom session/cookie and auth code?
* (the last problem with the POST was the missing content-length header)
* */
public class NewTransactionActivity extends ProfileThemedActivity
implements TaskCallback, DescriptionSelectedCallback {
private static SaveTransactionTask saver;
private TableLayout table;
private ProgressBar progress;
private FloatingActionButton fab;
private TextView tvDate;
private AutoCompleteTextView tvDescription;
private static boolean isZero(float f) {
return (f < 0.005) && (f > -0.005);
}
@Override
protected void onCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
setContentView(R.layout.activity_new_transaction);
Toolbar toolbar = findViewById(R.id.toolbar);
setSupportActionBar(toolbar);
toolbar.setSubtitle(Data.profile.get().getName());
tvDate = findViewById(R.id.new_transaction_date);
tvDate.setOnFocusChangeListener((v, hasFocus) -> {
if (hasFocus) pickTransactionDate(v);
});
tvDescription = findViewById(R.id.new_transaction_description);
MLDB.hookAutocompletionAdapter(this, tvDescription, MLDB.DESCRIPTION_HISTORY_TABLE,
"description", false, findViewById(R.id.new_transaction_acc_1), this);
hookTextChangeListener(tvDescription);
progress = findViewById(R.id.save_transaction_progress);
fab = findViewById(R.id.fab);
fab.setOnClickListener(v -> saveTransaction());
Objects.requireNonNull(getSupportActionBar()).setDisplayHomeAsUpEnabled(true);
table = findViewById(R.id.new_transaction_accounts_table);
for (int i = 0; i < table.getChildCount(); i++) {
TableRow row = (TableRow) table.getChildAt(i);
AutoCompleteTextView tvAccountName = (AutoCompleteTextView) row.getChildAt(0);
TextView tvAmount = (TextView) row.getChildAt(1);
hookSwipeListener(row);
MLDB.hookAutocompletionAdapter(this, tvAccountName, MLDB.ACCOUNTS_TABLE, "name", true,
tvAmount, null);
hookTextChangeListener(tvAccountName);
hookTextChangeListener(tvAmount);
// Log.d("swipe", "hooked to row "+i);
}
}
@Override
public void finish() {
super.finish();
overridePendingTransition(R.anim.dummy, R.anim.slide_out_right);
}
@Override
public boolean onOptionsItemSelected(MenuItem item) {
switch (item.getItemId()) {
case android.R.id.home:
finish();
return true;
}
return super.onOptionsItemSelected(item);
}
@Override
protected void onStart() {
super.onStart();
if (tvDescription.getText().toString().isEmpty()) tvDescription.requestFocus();
}
public void saveTransaction() {
if (fab != null) fab.setEnabled(false);
toggleAllEditing(false);
progress.setVisibility(View.VISIBLE);
try {
saver = new SaveTransactionTask(this);
String dateString = tvDate.getText().toString();
Date date;
if (dateString.isEmpty()) date = new Date();
else date = Globals.parseLedgerDate(dateString);
LedgerTransaction tr = new LedgerTransaction(date, tvDescription.getText().toString());
TableLayout table = findViewById(R.id.new_transaction_accounts_table);
for (int i = 0; i < table.getChildCount(); i++) {
TableRow row = (TableRow) table.getChildAt(i);
String acc = ((TextView) row.getChildAt(0)).getText().toString();
String amt = ((TextView) row.getChildAt(1)).getText().toString();
LedgerTransactionAccount item =
amt.length() > 0 ? new LedgerTransactionAccount(acc, Float.parseFloat(amt))
: new LedgerTransactionAccount(acc);
tr.addAccount(item);
}
saver.execute(tr);
}
catch (ParseException e) {
Log.d("new-transaction", "Parse error", e);
Toast.makeText(this, getResources().getString(R.string.error_invalid_date),
Toast.LENGTH_LONG).show();
tvDate.requestFocus();
progress.setVisibility(View.GONE);
toggleAllEditing(true);
if (fab != null) fab.setEnabled(true);
}
catch (Exception e) {
Log.d("new-transaction", "Unknown error", e);
progress.setVisibility(View.GONE);
toggleAllEditing(true);
if (fab != null) fab.setEnabled(true);
}
}
private void toggleAllEditing(boolean enabled) {
tvDate.setEnabled(enabled);
tvDescription.setEnabled(enabled);
TableLayout table = findViewById(R.id.new_transaction_accounts_table);
for (int i = 0; i < table.getChildCount(); i++) {
TableRow row = (TableRow) table.getChildAt(i);
for (int j = 0; j < row.getChildCount(); j++) {
row.getChildAt(j).setEnabled(enabled);
}
}
}
private void hookSwipeListener(final TableRow row) {
row.getChildAt(0).setOnTouchListener(new OnSwipeTouchListener(this) {
private void onSwipeAside() {
if (table.getChildCount() > 2) {
TableRow prev_row = (TableRow) table.getChildAt(table.indexOfChild(row) - 1);
TableRow next_row = (TableRow) table.getChildAt(table.indexOfChild(row) + 1);
TextView prev_amt =
(prev_row != null) ? (TextView) prev_row.getChildAt(1) : tvDescription;
TextView next_acc =
(next_row != null) ? (TextView) next_row.getChildAt(0) : null;
if (next_acc == null) {
prev_amt.setNextFocusRightId(R.id.none);
prev_amt.setNextFocusForwardId(R.id.none);
prev_amt.setImeOptions(EditorInfo.IME_ACTION_DONE);
}
else {
prev_amt.setNextFocusRightId(next_acc.getId());
prev_amt.setNextFocusForwardId(next_acc.getId());
prev_amt.setImeOptions(EditorInfo.IME_ACTION_NEXT);
}
if (row.hasFocus()) {
if (next_acc != null) next_acc.requestFocus();
else prev_amt.requestFocus();
}
table.removeView(row);
check_transaction_submittable();
// Toast.makeText(NewTransactionActivity.this, "LEFT", Toast.LENGTH_LONG).show();
}
else {
Snackbar.make(table, R.string.msg_at_least_two_accounts_are_required,
Snackbar.LENGTH_LONG).setAction("Action", null).show();
}
}
public void onSwipeLeft() {
onSwipeAside();
}
public void onSwipeRight() {
onSwipeAside();
}
// @Override
// public boolean performClick(View view, MotionEvent m) {
// return true;
// }
public boolean onTouch(View view, MotionEvent m) {
return gestureDetector.onTouchEvent(m);
}
});
}
public boolean simulateCrash(MenuItem item) {
Log.d("crash", "Will crash intentionally");
new AsyncCrasher().execute();
return true;
}
public boolean onCreateOptionsMenu(Menu menu) {
// Inflate the menu; this adds items to the action bar if it is present.
getMenuInflater().inflate(R.menu.new_transaction, menu);
if (BuildConfig.DEBUG) {
menu.findItem(R.id.action_simulate_crash).setVisible(true);
}
check_transaction_submittable();
return true;
}
public void pickTransactionDate(View view) {
DialogFragment picker = new DatePickerFragment();
picker.show(getSupportFragmentManager(), "datePicker");
}
public int dp2px(float dp) {
return Math.round(TypedValue.applyDimension(TypedValue.COMPLEX_UNIT_DIP, dp,
getResources().getDisplayMetrics()));
}
private void hookTextChangeListener(final TextView view) {
view.addTextChangedListener(new TextWatcher() {
@Override
public void beforeTextChanged(CharSequence s, int start, int count, int after) {
}
@Override
public void onTextChanged(CharSequence s, int start, int before, int count) {
}
@Override
public void afterTextChanged(Editable s) {
// Log.d("input", "text changed");
check_transaction_submittable();
}
});
}
private TableRow doAddAccountRow(boolean focus) {
final AutoCompleteTextView acc = new AutoCompleteTextView(this);
acc.setLayoutParams(new TableRow.LayoutParams(TableRow.LayoutParams.MATCH_PARENT,
TableRow.LayoutParams.WRAP_CONTENT, 9f));
acc.setHint(R.string.new_transaction_account_hint);
acc.setWidth(0);
acc.setImeOptions(EditorInfo.IME_ACTION_NEXT | EditorInfo.IME_FLAG_NO_ENTER_ACTION |
EditorInfo.IME_FLAG_NAVIGATE_NEXT);
acc.setSingleLine(true);
final EditText amt = new EditText(this);
amt.setLayoutParams(new TableRow.LayoutParams(TableRow.LayoutParams.WRAP_CONTENT,
TableRow.LayoutParams.MATCH_PARENT, 1f));
amt.setHint(R.string.new_transaction_amount_hint);
amt.setWidth(0);
amt.setInputType(InputType.TYPE_CLASS_NUMBER | InputType.TYPE_NUMBER_FLAG_SIGNED |
InputType.TYPE_NUMBER_FLAG_DECIMAL);
amt.setMinWidth(dp2px(40));
amt.setTextAlignment(EditText.TEXT_ALIGNMENT_VIEW_END);
amt.setImeOptions(EditorInfo.IME_ACTION_DONE);
amt.setSelectAllOnFocus(true);
// forward navigation support
final TableRow last_row = (TableRow) table.getChildAt(table.getChildCount() - 1);
final TextView last_amt = (TextView) last_row.getChildAt(1);
last_amt.setNextFocusForwardId(acc.getId());
last_amt.setNextFocusRightId(acc.getId());
last_amt.setImeOptions(EditorInfo.IME_ACTION_NEXT);
acc.setNextFocusForwardId(amt.getId());
acc.setNextFocusRightId(amt.getId());
final TableRow row = new TableRow(this);
row.setLayoutParams(new TableRow.LayoutParams(TableRow.LayoutParams.MATCH_PARENT,
TableRow.LayoutParams.MATCH_PARENT));
row.setGravity(Gravity.BOTTOM);
row.addView(acc);
row.addView(amt);
table.addView(row);
if (focus) acc.requestFocus();
hookSwipeListener(row);
MLDB.hookAutocompletionAdapter(this, acc, MLDB.ACCOUNTS_TABLE, "name", true, amt, null);
hookTextChangeListener(acc);
hookTextChangeListener(amt);
return row;
}
public void addTransactionAccountFromMenu(MenuItem item) {
doAddAccountRow(true);
}
public void resetTransactionFromMenu(MenuItem item) {
resetForm();
}
public void saveTransactionFromMenu(MenuItem item) {
saveTransaction();
}
// rules:
// 1) at least two account names
// 2) each amount must have account name
// 3) amounts must balance to 0, or
// 3a) there must be exactly one empty amount
// 4) empty accounts with empty amounts are ignored
// 5) a row with an empty account name or empty amount is guaranteed to exist
@SuppressLint("DefaultLocale")
private void check_transaction_submittable() {
TableLayout table = findViewById(R.id.new_transaction_accounts_table);
int accounts = 0;
int accounts_with_values = 0;
int amounts = 0;
int amounts_with_accounts = 0;
int empty_rows = 0;
TextView empty_amount = null;
boolean single_empty_amount = false;
boolean single_empty_amount_has_account = false;
float running_total = 0f;
boolean have_description =
!((TextView) findViewById(R.id.new_transaction_description)).getText().toString()
.isEmpty();
try {
for (int i = 0; i < table.getChildCount(); i++) {
TableRow row = (TableRow) table.getChildAt(i);
TextView acc_name_v = (TextView) row.getChildAt(0);
TextView amount_v = (TextView) row.getChildAt(1);
String amt = String.valueOf(amount_v.getText());
String acc_name = String.valueOf(acc_name_v.getText());
acc_name = acc_name.trim();
if (!acc_name.isEmpty()) {
accounts++;
if (!amt.isEmpty()) {
accounts_with_values++;
}
}
else empty_rows++;
if (amt.isEmpty()) {
amount_v.setHint(String.format("%1.2f", 0f));
if (empty_amount == null) {
empty_amount = amount_v;
single_empty_amount = true;
single_empty_amount_has_account = !acc_name.isEmpty();
}
else if (!acc_name.isEmpty()) single_empty_amount = false;
}
else {
amounts++;
if (!acc_name.isEmpty()) amounts_with_accounts++;
running_total += Float.valueOf(amt);
}
}
if ((empty_rows == 0) &&
((table.getChildCount() == accounts) || (table.getChildCount() == amounts)))
{
doAddAccountRow(false);
}
Log.d("submittable", String.format("accounts=%d, accounts_with_values=%s, " +
"amounts_with_accounts=%d, amounts=%d, running_total=%1.2f, " +
"single_empty_with_acc=%s", accounts,
accounts_with_values, amounts_with_accounts, amounts, running_total,
(single_empty_amount && single_empty_amount_has_account) ? "true" : "false"));
if (have_description && (accounts >= 2) && (accounts_with_values >= (accounts - 1)) &&
(amounts_with_accounts == amounts) &&
(single_empty_amount && single_empty_amount_has_account || isZero(running_total)))
{
if (fab != null) {
fab.show();
fab.setEnabled(true);
}
}
else {
if (fab != null) fab.hide();
}
if (single_empty_amount) {
empty_amount.setHint(String.format("%1.2f",
(Math.abs(running_total) > 0.005) ? -running_total : 0f));
}
}
catch (NumberFormatException e) {
if (fab != null) fab.hide();
}
catch (Exception e) {
e.printStackTrace();
if (fab != null) fab.hide();
}
}
@Override
public void done(String error) {
progress.setVisibility(View.INVISIBLE);
Log.d("visuals", "hiding progress");
if (error == null) resetForm();
else Snackbar.make(findViewById(R.id.new_transaction_accounts_table), error,
BaseTransientBottomBar.LENGTH_LONG).show();
toggleAllEditing(true);
check_transaction_submittable();
}
private void resetForm() {
tvDate.setText("");
tvDescription.setText("");
tvDescription.requestFocus();
while (table.getChildCount() > 2) {
table.removeViewAt(2);
}
for (int i = 0; i < 2; i++) {
TableRow tr = (TableRow) table.getChildAt(i);
if (tr == null) break;
((TextView) tr.getChildAt(0)).setText("");
((TextView) tr.getChildAt(1)).setText("");
}
}
@Override
public void descriptionSelected(String description) {
Log.d("descr selected", description);
if (!inputStateIsInitial()) return;
try (Cursor c = MLDB.getDatabase().rawQuery(
"select profile, id from transactions where description=? order by date desc " +
"limit 1", new String[]{description}))
{
if (!c.moveToNext()) return;
String profileUUID = c.getString(0);
int transactionId = c.getInt(1);
LedgerTransaction tr;
try (LockHolder lh = Data.profiles.lockForReading()) {
MobileLedgerProfile profile = null;
for (int i = 0; i < Data.profiles.size(); i++) {
MobileLedgerProfile p = Data.profiles.get(i);
if (p.getUuid().equals(profileUUID)) {
profile = p;
break;
}
}
if (profile == null) throw new RuntimeException(String.format(
"Unable to find profile %s, which is supposed to contain " +
"transaction %d with description %s", profileUUID, transactionId,
description));
tr = profile.loadTransaction(transactionId);
}
int i = 0;
table = findViewById(R.id.new_transaction_accounts_table);
ArrayList accounts = tr.getAccounts();
TableRow firstNegative = null;
int negativeCount = 0;
for (i = 0; i < accounts.size(); i++) {
LedgerTransactionAccount acc = accounts.get(i);
TableRow row = (TableRow) table.getChildAt(i);
if (row == null) row = doAddAccountRow(false);
((TextView) row.getChildAt(0)).setText(acc.getAccountName());
((TextView) row.getChildAt(1))
.setText(String.format(Locale.US, "%1.2f", acc.getAmount()));
if (acc.getAmount() < 0.005) {
if (firstNegative == null) firstNegative = row;
negativeCount++;
}
}
if (negativeCount == 1) {
((TextView) firstNegative.getChildAt(1)).setText(null);
}
check_transaction_submittable();
EditText firstAmount = (EditText) ((TableRow) table.getChildAt(0)).getChildAt(1);
String amtString = String.valueOf(firstAmount.getText());
firstAmount.requestFocus();
firstAmount.setSelection(0, amtString.length());
}
}
private boolean inputStateIsInitial() {
table = findViewById(R.id.new_transaction_accounts_table);
if (table.getChildCount() != 2) return false;
for (int i = 0; i < 2; i++) {
TableRow row = (TableRow) table.getChildAt(i);
if (((TextView) row.getChildAt(0)).getText().length() > 0) return false;
if (((TextView) row.getChildAt(1)).getText().length() > 0) return false;
}
return true;
}
private class AsyncCrasher extends AsyncTask {
@Override
protected Void doInBackground(Void... voids) {
throw new RuntimeException("Simulated crash");
}
}
}