/*
- * Copyright © 2019 Damyan Ivanov.
+ * Copyright © 2020 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
package net.ktnx.mobileledger.ui.activity;
-import android.annotation.SuppressLint;
-
import androidx.annotation.NonNull;
-import androidx.annotation.Nullable;
import androidx.lifecycle.LifecycleOwner;
import androidx.lifecycle.LiveData;
import androidx.lifecycle.MutableLiveData;
import androidx.lifecycle.Observer;
import androidx.lifecycle.ViewModel;
-import net.ktnx.mobileledger.BuildConfig;
import net.ktnx.mobileledger.model.Currency;
import net.ktnx.mobileledger.model.Data;
import net.ktnx.mobileledger.model.LedgerTransactionAccount;
import net.ktnx.mobileledger.model.MobileLedgerProfile;
-import net.ktnx.mobileledger.utils.Logger;
-import net.ktnx.mobileledger.utils.Misc;
+import net.ktnx.mobileledger.utils.Globals;
+import net.ktnx.mobileledger.utils.SimpleDate;
import org.jetbrains.annotations.NotNull;
+import java.text.ParseException;
import java.util.ArrayList;
import java.util.Calendar;
import java.util.Collections;
-import java.util.Date;
import java.util.GregorianCalendar;
-import java.util.HashMap;
-import java.util.List;
import java.util.Locale;
-import java.util.Set;
-import java.util.regex.Matcher;
-import java.util.regex.Pattern;
-
-import static net.ktnx.mobileledger.utils.Logger.debug;
+import java.util.concurrent.atomic.AtomicInteger;
public class NewTransactionModel extends ViewModel {
- private static final Pattern reYMD =
- Pattern.compile("^\\s*(\\d+)\\d*/\\s*(\\d+)\\s*/\\s*(\\d+)\\s*$");
- private static final Pattern reMD = Pattern.compile("^\\s*(\\d+)\\s*/\\s*(\\d+)\\s*$");
- private static final Pattern reD = Pattern.compile("\\s*(\\d+)\\s*$");
final MutableLiveData<Boolean> showCurrency = new MutableLiveData<>(false);
+ final ArrayList<Item> items = new ArrayList<>();
+ final MutableLiveData<Boolean> isSubmittable = new MutableLiveData<>(false);
+ final MutableLiveData<Boolean> showComments = new MutableLiveData<>(true);
private final Item header = new Item(this, null, "");
private final Item trailer = new Item(this);
- private final ArrayList<Item> items = new ArrayList<>();
- private final MutableLiveData<Boolean> isSubmittable = new MutableLiveData<>(false);
private final MutableLiveData<Integer> focusedItem = new MutableLiveData<>(0);
private final MutableLiveData<Integer> accountCount = new MutableLiveData<>(0);
private final MutableLiveData<Boolean> simulateSave = new MutableLiveData<>(false);
- /*
- Slots contain lists of items, all using the same currency, including the possible
- item with no account/amount that is used to help balancing the transaction
-
- There is one slot per currency
- */
- private final HashMap<String, List<Item>> slots = new HashMap<>();
- private int checkHoldCounter = 0;
- private Observer<MobileLedgerProfile> profileObserver = profile ->showCurrency.postValue(profile.getShowCommodityByDefault());
- public void observeDataProfile(LifecycleOwner activity) {
- Data.profile.observe(activity, profileObserver);
- }
- void holdSubmittableChecks() {
- checkHoldCounter++;
- }
- void releaseSubmittableChecks() {
- if (checkHoldCounter == 0)
- throw new RuntimeException("Asymmetrical call to releaseSubmittableChecks");
- checkHoldCounter--;
+ private final AtomicInteger busyCounter = new AtomicInteger(0);
+ private final MutableLiveData<Boolean> busyFlag = new MutableLiveData<>(false);
+ private boolean observingDataProfile;
+ private Observer<MobileLedgerProfile> profileObserver = profile -> {
+ showCurrency.postValue(profile.getShowCommodityByDefault());
+ showComments.postValue(profile.getShowCommentsByDefault());
+ };
+ void observeShowComments(LifecycleOwner owner, Observer<? super Boolean> observer) {
+ showComments.observe(owner, observer);
+ }
+ void observeBusyFlag(@NonNull LifecycleOwner owner, Observer<? super Boolean> observer) {
+ busyFlag.observe(owner, observer);
+ }
+ void observeDataProfile(LifecycleOwner activity) {
+ if (!observingDataProfile)
+ Data.profile.observe(activity, profileObserver);
+ observingDataProfile = true;
}
boolean getSimulateSave() {
return simulateSave.getValue();
int getAccountCount() {
return items.size();
}
- public Date getDate() {
+ public SimpleDate getDate() {
return header.date.getValue();
}
public String getDescription() {
return header.description.getValue();
}
+ public String getComment() {
+ return header.comment.getValue();
+ }
LiveData<Boolean> isSubmittable() {
return this.isSubmittable;
}
void reset() {
header.date.setValue(null);
header.description.setValue(null);
+ header.comment.setValue(null);
items.clear();
items.add(new Item(this, new LedgerTransactionAccount("")));
items.add(new Item(this, new LedgerTransactionAccount("")));
return trailer;
}
- /*
- A transaction is submittable if:
- 0) has description
- 1) has at least two account names
- 2) each row with amount has account name
- 3) for each commodity:
- 3a) amounts must balance to 0, or
- 3b) there must be exactly one empty amount (with account)
- 4) empty accounts with empty amounts are ignored
- Side effects:
- 5) a row with an empty account name or empty amount is guaranteed to exist for each commodity
- 6) at least two rows need to be present in the ledger
-
- */
- @SuppressLint("DefaultLocale")
- void checkTransactionSubmittable(NewTransactionItemsAdapter adapter) {
- if (checkHoldCounter > 0)
- return;
-
- int accounts = 0;
- final BalanceForCurrency balance = new BalanceForCurrency();
- final String descriptionText = getDescription();
- boolean submittable = true;
- final ItemsForCurrency itemsForCurrency = new ItemsForCurrency();
- final ItemsForCurrency itemsWithEmptyAmountForCurrency = new ItemsForCurrency();
- final ItemsForCurrency itemsWithAccountAndEmptyAmountForCurrency = new ItemsForCurrency();
- final ItemsForCurrency itemsWithEmptyAccountForCurrency = new ItemsForCurrency();
- final ItemsForCurrency itemsWithAmountForCurrency = new ItemsForCurrency();
- final ItemsForCurrency itemsWithAccountForCurrency = new ItemsForCurrency();
- final ItemsForCurrency emptyRowsForCurrency = new ItemsForCurrency();
- final List<Item> emptyRows = new ArrayList<>();
-
- try {
- if ((descriptionText == null) || descriptionText.trim()
- .isEmpty())
- {
- Logger.debug("submittable", "Transaction not submittable: missing description");
- submittable = false;
- }
-
- for (int i = 0; i < this.items.size(); i++) {
- Item item = this.items.get(i);
-
- LedgerTransactionAccount acc = item.getAccount();
- String acc_name = acc.getAccountName()
- .trim();
- String currName = acc.getCurrency();
-
- itemsForCurrency.add(currName, item);
-
- if (acc_name.isEmpty()) {
- itemsWithEmptyAccountForCurrency.add(currName, item);
-
- if (acc.isAmountSet()) {
- // 2) each amount has account name
- Logger.debug("submittable", String.format(
- "Transaction not submittable: row %d has no account name, but" +
- " has" + " amount %1.2f", i + 1, acc.getAmount()));
- submittable = false;
- }
- else {
- emptyRowsForCurrency.add(currName, item);
- }
- }
- else {
- accounts++;
- itemsWithAccountForCurrency.add(currName, item);
- }
-
- if (acc.isAmountSet()) {
- itemsWithAmountForCurrency.add(currName, item);
- balance.add(currName, acc.getAmount());
- }
- else {
- itemsWithEmptyAmountForCurrency.add(currName, item);
-
- if (!acc_name.isEmpty())
- itemsWithAccountAndEmptyAmountForCurrency.add(currName, item);
- }
- }
-
- // 1) has at least two account names
- if (accounts < 2) {
- if (accounts == 0)
- Logger.debug("submittable",
- "Transaction not submittable: no account " + "names");
- else if (accounts == 1)
- Logger.debug("submittable",
- "Transaction not submittable: only one account name");
- else
- Logger.debug("submittable",
- String.format("Transaction not submittable: only %d account names",
- accounts));
- submittable = false;
- }
-
- // 3) for each commodity:
- // 3a) amount must balance to 0, or
- // 3b) there must be exactly one empty amount (with account)
- for (String balCurrency : itemsForCurrency.currencies()) {
- float currencyBalance = balance.get(balCurrency);
- if (Misc.isZero(currencyBalance)) {
- // remove hints from all amount inputs in that currency
- for (Item item : items) {
- if (Currency.equal(item.getCurrency(), balCurrency))
- item.setAmountHint(null);
- }
- }
- else {
- List<Item> list =
- itemsWithAccountAndEmptyAmountForCurrency.getList(balCurrency);
- int balanceReceiversCount = list.size();
- if (balanceReceiversCount != 1) {
- if (BuildConfig.DEBUG) {
- if (balanceReceiversCount == 0)
- Logger.debug("submittable", String.format(
- "Transaction not submittable [%s]: non-zero balance " +
- "with no empty amounts with accounts", balCurrency));
- else
- Logger.debug("submittable", String.format(
- "Transaction not submittable [%s]: non-zero balance " +
- "with multiple empty amounts with accounts", balCurrency));
- }
- submittable = false;
- }
-
- List<Item> emptyAmountList =
- itemsWithEmptyAmountForCurrency.getList(balCurrency);
-
- // suggest off-balance amount to a row and remove hints on other rows
- Item receiver = null;
- if (!list.isEmpty())
- receiver = list.get(0);
- else if (!emptyAmountList.isEmpty())
- receiver = emptyAmountList.get(0);
-
- for (Item item : items) {
- if (!Currency.equal(item.getCurrency(), balCurrency))
- continue;
-
- if (item.equals(receiver)) {
- if (BuildConfig.DEBUG)
- Logger.debug("submittable",
- String.format("Setting amount hint to %1.2f [%s]",
- -currencyBalance, balCurrency));
- item.setAmountHint(String.format("%1.2f", -currencyBalance));
- }
- else {
- if (BuildConfig.DEBUG)
- Logger.debug("submittable",
- String.format("Resetting hint of '%s' [%s]",
- (item.getAccount() == null) ? "" : item.getAccount()
- .getAccountName(),
- balCurrency));
- item.setAmountHint(null);
- }
- }
- }
- }
-
- // 5) a row with an empty account name or empty amount is guaranteed to exist for
- // each commodity
- for (String balCurrency : balance.currencies()) {
- int currEmptyRows = itemsWithEmptyAccountForCurrency.size(balCurrency);
- int currRows = itemsForCurrency.size(balCurrency);
- int currAccounts = itemsWithAccountForCurrency.size(balCurrency);
- int currAmounts = itemsWithAmountForCurrency.size(balCurrency);
- if ((currEmptyRows == 0) &&
- ((currRows == currAccounts) || (currRows == currAmounts)))
- {
- // perhaps there already is an unused empty row for another currency that
- // is not used?
-// boolean foundIt = false;
-// for (Item item : emptyRows) {
-// Currency itemCurrency = item.getCurrency();
-// String itemCurrencyName =
-// (itemCurrency == null) ? "" : itemCurrency.getName();
-// if (Misc.isZero(balance.get(itemCurrencyName))) {
-// item.setCurrency(Currency.loadByName(balCurrency));
-// item.setAmountHint(
-// String.format("%1.2f", -balance.get(balCurrency)));
-// foundIt = true;
-// break;
-// }
-// }
-//
-// if (!foundIt)
- adapter.addRow(balCurrency);
- }
- }
-
- // drop extra empty rows, not needed
- for (String currName : emptyRowsForCurrency.currencies()) {
- List<Item> emptyItems = emptyRowsForCurrency.getList(currName);
- while ((this.items.size() > 2) && (emptyItems.size() > 1)) {
- Item item = emptyItems.get(1);
- emptyItems.remove(1);
- removeRow(item, adapter);
- }
-
- // unused currency, remove last item (which is also an empty one)
- if ((items.size() > 2) && (emptyItems.size() == 1)) {
- List<Item> currItems = itemsForCurrency.getList(currName);
-
- if (currItems.size() == 1) {
- Item item = emptyItems.get(0);
- removeRow(item, adapter);
- }
- }
- }
-
- // 6) at least two rows need to be present in the ledger
- while (this.items.size() < 2)
- adapter.addRow();
-
-
- debug("submittable", submittable ? "YES" : "NO");
- isSubmittable.setValue(submittable);
-
- if (BuildConfig.DEBUG) {
- debug("submittable", "== Dump of all items");
- for (int i = 0; i < items.size(); i++) {
- Item item = items.get(i);
- LedgerTransactionAccount acc = item.getAccount();
- debug("submittable", String.format("Item %2d: [%4.2f(%s) %s] %s ; %s", i,
- acc.isAmountSet() ? acc.getAmount() : 0,
- item.isAmountHintSet() ? item.getAmountHint() : "ø", acc.getCurrency(),
- acc.getAccountName(), acc.getComment()));
- }
- }
- }
- catch (NumberFormatException e) {
- debug("submittable", "NO (because of NumberFormatException)");
- isSubmittable.setValue(false);
- }
- catch (Exception e) {
- e.printStackTrace();
- debug("submittable", "NO (because of an Exception)");
- isSubmittable.setValue(false);
- }
- }
- private void removeRow(Item item, NewTransactionItemsAdapter adapter) {
+ void removeRow(Item item, NewTransactionItemsAdapter adapter) {
int pos = items.indexOf(item);
items.remove(pos);
if (adapter != null) {
void swapItems(int one, int two) {
Collections.swap(items, one - 1, two - 1);
}
- void toggleComment(int position) {
- final MutableLiveData<Boolean> commentVisible = getItem(position).commentVisible;
- commentVisible.postValue(!commentVisible.getValue());
- }
void moveItemLast(int index) {
/* 0
1 <-- index
void toggleCurrencyVisible() {
showCurrency.setValue(!showCurrency.getValue());
}
- public void setItemCurrency(Item item, Currency newCurrency,
- NewTransactionItemsAdapter adapter) {
- Currency oldCurrency = item.getCurrency();
- if (!Currency.equal(newCurrency, oldCurrency)) {
- holdSubmittableChecks();
- try {
- item.setCurrency(newCurrency);
-// for (Item i : items) {
-// if (Currency.equal(i.getCurrency(), oldCurrency))
-// i.setCurrency(newCurrency);
-// }
- }
- finally {
- releaseSubmittableChecks();
- }
-
- checkTransactionSubmittable(adapter);
- }
+ void stopObservingBusyFlag(Observer<Boolean> observer) {
+ busyFlag.removeObserver(observer);
+ }
+ void incrementBusyCounter() {
+ int newValue = busyCounter.incrementAndGet();
+ if (newValue == 1)
+ busyFlag.postValue(true);
+ }
+ void decrementBusyCounter() {
+ int newValue = busyCounter.decrementAndGet();
+ if (newValue == 0)
+ busyFlag.postValue(false);
+ }
+ public boolean getBusyFlag() {
+ return busyFlag.getValue();
+ }
+ public void toggleShowComments() {
+ showComments.setValue(!showComments.getValue());
}
enum ItemType {generalData, transactionRow, bottomFiller}
- enum FocusedElement {Account, Comment, Amount}
+ enum FocusedElement {Account, Comment, Amount, Description, TransactionComment}
- private class ItemsForCurrency {
- private HashMap<String, List<Item>> hashMap = new HashMap<>();
- @NonNull
- List<Item> getList(@Nullable String currencyName) {
- List<Item> list = hashMap.get(currencyName);
- if (list == null) {
- list = new ArrayList<>();
- hashMap.put(currencyName, list);
- }
- return list;
- }
- void add(@Nullable String currencyName, @NonNull Item item) {
- getList(currencyName).add(item);
- }
- int size(@Nullable String currencyName) {
- return this.getList(currencyName)
- .size();
- }
- Set<String> currencies() {
- return hashMap.keySet();
- }
- }
//==========================================================================================
- private class BalanceForCurrency {
- private HashMap<String, Float> hashMap = new HashMap<>();
- float get(String currencyName) {
- Float f = hashMap.get(currencyName);
- if (f == null) {
- f = 0f;
- hashMap.put(currencyName, f);
- }
- return f;
- }
- void add(String currencyName, float amount) {
- hashMap.put(currencyName, get(currencyName) + amount);
- }
- Set<String> currencies() {
- return hashMap.keySet();
- }
- boolean containsCurrency(String currencyName) {
- return hashMap.containsKey(currencyName);
- }
- }
- class Item {
+ static class Item {
private ItemType type;
- private MutableLiveData<Date> date = new MutableLiveData<>();
+ private MutableLiveData<SimpleDate> date = new MutableLiveData<>();
private MutableLiveData<String> description = new MutableLiveData<>();
private LedgerTransactionAccount account;
private MutableLiveData<String> amountHint = new MutableLiveData<>(null);
private MutableLiveData<Boolean> editable = new MutableLiveData<>(true);
private FocusedElement focusedElement = FocusedElement.Account;
private MutableLiveData<String> comment = new MutableLiveData<>(null);
- private MutableLiveData<Boolean> commentVisible = new MutableLiveData<>(false);
private MutableLiveData<Currency> currency = new MutableLiveData<>(null);
+ private MutableLiveData<Boolean> amountValid = new MutableLiveData<>(true);
private boolean amountHintIsSet = false;
Item(NewTransactionModel model) {
this.model = model;
type = ItemType.bottomFiller;
editable.setValue(false);
}
- Item(NewTransactionModel model, Date date, String description) {
+ Item(NewTransactionModel model, SimpleDate date, String description) {
this.model = model;
this.type = ItemType.generalData;
this.date.setValue(date);
wantedType));
}
}
- public Date getDate() {
+ public SimpleDate getDate() {
ensureType(ItemType.generalData);
return date.getValue();
}
- public void setDate(Date date) {
+ public void setDate(SimpleDate date) {
ensureType(ItemType.generalData);
this.date.setValue(date);
}
- public void setDate(String text) {
+ public void setDate(String text) throws ParseException {
if ((text == null) || text.trim()
.isEmpty())
{
- setDate((Date) null);
+ setDate((SimpleDate) null);
return;
}
- int year, month, day;
- final Calendar c = GregorianCalendar.getInstance();
- Matcher m = reYMD.matcher(text);
- if (m.matches()) {
- year = Integer.parseInt(m.group(1));
- month = Integer.parseInt(m.group(2)) - 1; // month is 0-based
- day = Integer.parseInt(m.group(3));
- }
- else {
- year = c.get(Calendar.YEAR);
- m = reMD.matcher(text);
- if (m.matches()) {
- month = Integer.parseInt(m.group(1)) - 1;
- day = Integer.parseInt(m.group(2));
- }
- else {
- month = c.get(Calendar.MONTH);
- m = reD.matcher(text);
- if (m.matches()) {
- day = Integer.parseInt(m.group(1));
- }
- else {
- day = c.get(Calendar.DAY_OF_MONTH);
- }
- }
- }
-
- c.set(year, month, day);
-
- this.setDate(c.getTime());
+ SimpleDate date = Globals.parseLedgerDate(text);
+ this.setDate(date);
}
void observeDate(@NonNull @NotNull androidx.lifecycle.LifecycleOwner owner,
- @NonNull androidx.lifecycle.Observer<? super Date> observer) {
+ @NonNull androidx.lifecycle.Observer<? super SimpleDate> observer) {
this.date.observe(owner, observer);
}
- void stopObservingDate(@NonNull androidx.lifecycle.Observer<? super Date> observer) {
+ void stopObservingDate(@NonNull androidx.lifecycle.Observer<? super SimpleDate> observer) {
this.date.removeObserver(observer);
}
public String getDescription() {
@NonNull androidx.lifecycle.Observer<? super String> observer) {
this.description.removeObserver(observer);
}
+ public String getTransactionComment() {
+ ensureType(ItemType.generalData);
+ return comment.getValue();
+ }
+ public void setTransactionComment(String transactionComment) {
+ ensureType(ItemType.generalData);
+ this.comment.setValue(transactionComment);
+ }
+ void observeTransactionComment(@NonNull @NotNull LifecycleOwner owner,
+ @NonNull Observer<? super String> observer) {
+ ensureType(ItemType.generalData);
+ this.comment.observe(owner, observer);
+ }
+ void stopObservingTransactionComment(@NonNull Observer<? super String> observer) {
+ this.comment.removeObserver(observer);
+ }
public LedgerTransactionAccount getAccount() {
ensureType(ItemType.transactionRow);
return account;
String getFormattedDate() {
if (date == null)
return null;
- Date time = date.getValue();
- if (time == null)
+ SimpleDate d = date.getValue();
+ if (d == null)
return null;
- Calendar c = GregorianCalendar.getInstance();
- c.setTime(time);
Calendar today = GregorianCalendar.getInstance();
- final int myYear = c.get(Calendar.YEAR);
- final int myMonth = c.get(Calendar.MONTH);
- final int myDay = c.get(Calendar.DAY_OF_MONTH);
-
- if (today.get(Calendar.YEAR) != myYear) {
- return String.format(Locale.US, "%d/%02d/%02d", myYear, myMonth + 1, myDay);
+ if (today.get(Calendar.YEAR) != d.year) {
+ return String.format(Locale.US, "%d/%02d/%02d", d.year, d.month, d.day);
}
- if (today.get(Calendar.MONTH) != myMonth) {
- return String.format(Locale.US, "%d/%02d", myMonth + 1, myDay);
+ if (today.get(Calendar.MONTH) != d.month - 1) {
+ return String.format(Locale.US, "%d/%02d", d.month, d.day);
}
- return String.valueOf(myDay);
+ return String.valueOf(d.day);
}
void observeEditableFlag(NewTransactionActivity activity, Observer<Boolean> observer) {
editable.observe(activity, observer);
void stopObservingEditableFlag(Observer<Boolean> observer) {
editable.removeObserver(observer);
}
- void observeCommentVisible(NewTransactionActivity activity, Observer<Boolean> observer) {
- commentVisible.observe(activity, observer);
- }
- void stopObservingCommentVisible(Observer<Boolean> observer) {
- commentVisible.removeObserver(observer);
- }
void observeComment(NewTransactionActivity activity, Observer<String> observer) {
comment.observe(activity, observer);
}
boolean isAmountHintSet() {
return amountHintIsSet;
}
+ void validateAmount() {
+ amountValid.setValue(true);
+ }
+ void invalidateAmount() {
+ amountValid.setValue(false);
+ }
+ void observeAmountValidity(NewTransactionActivity activity, Observer<Boolean> observer) {
+ amountValid.observe(activity, observer);
+ }
+ void stopObservingAmountValidity(Observer<Boolean> observer) {
+ amountValid.removeObserver(observer);
+ }
}
}
projects / mobile-ledger.git / blobdiff