+++ /dev/null
-/*
- * Copyright © 2021 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 <https://www.gnu.org/licenses/>.
- */
-
-package net.ktnx.mobileledger.ui.activity;
-
-import android.annotation.SuppressLint;
-import android.app.Activity;
-import android.database.Cursor;
-import android.text.TextUtils;
-import android.view.LayoutInflater;
-import android.view.ViewGroup;
-
-import androidx.annotation.NonNull;
-import androidx.annotation.Nullable;
-import androidx.recyclerview.widget.ItemTouchHelper;
-import androidx.recyclerview.widget.RecyclerView;
-
-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.databinding.NewTransactionRowBinding;
-import net.ktnx.mobileledger.model.Currency;
-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.utils.Logger;
-import net.ktnx.mobileledger.utils.MLDB;
-import net.ktnx.mobileledger.utils.Misc;
-
-import java.util.ArrayList;
-import java.util.HashMap;
-import java.util.List;
-import java.util.Locale;
-import java.util.Set;
-
-import static net.ktnx.mobileledger.utils.Logger.debug;
-
-class NewTransactionItemsAdapter extends RecyclerView.Adapter<NewTransactionItemHolder>
- implements DescriptionSelectedCallback {
- private final NewTransactionModel model;
- private final ItemTouchHelper touchHelper;
- private MobileLedgerProfile mProfile;
- private RecyclerView recyclerView;
- private int checkHoldCounter = 0;
- NewTransactionItemsAdapter(NewTransactionModel viewModel, MobileLedgerProfile profile) {
- super();
- model = viewModel;
- mProfile = profile;
- int size = model.getAccountCount();
- while (size < 2) {
- Logger.debug("new-transaction",
- String.format(Locale.US, "%d accounts is too little, Calling addRow()", size));
- size = addRow();
- }
-
- NewTransactionItemsAdapter adapter = this;
-
- touchHelper = new ItemTouchHelper(new ItemTouchHelper.Callback() {
- @Override
- public boolean isLongPressDragEnabled() {
- return true;
- }
- @Override
- public boolean canDropOver(@NonNull RecyclerView recyclerView,
- @NonNull RecyclerView.ViewHolder current,
- @NonNull RecyclerView.ViewHolder target) {
- final int adapterPosition = target.getAdapterPosition();
-
- // first and last items are immovable
- if (adapterPosition == 0)
- return false;
- if (adapterPosition == adapter.getItemCount() - 1)
- return false;
-
- return super.canDropOver(recyclerView, current, target);
- }
- @Override
- public int getMovementFlags(@NonNull RecyclerView recyclerView,
- @NonNull RecyclerView.ViewHolder viewHolder) {
- int flags = makeFlag(ItemTouchHelper.ACTION_STATE_IDLE, ItemTouchHelper.END);
- // the top (date and description) and the bottom (padding) items are always there
- final int adapterPosition = viewHolder.getAdapterPosition();
- if ((adapterPosition > 0) && (adapterPosition < adapter.getItemCount() - 1)) {
- flags |= makeFlag(ItemTouchHelper.ACTION_STATE_DRAG,
- ItemTouchHelper.UP | ItemTouchHelper.DOWN) |
- makeFlag(ItemTouchHelper.ACTION_STATE_SWIPE,
- ItemTouchHelper.START | ItemTouchHelper.END);
- }
-
- return flags;
- }
- @Override
- public boolean onMove(@NonNull RecyclerView recyclerView,
- @NonNull RecyclerView.ViewHolder viewHolder,
- @NonNull RecyclerView.ViewHolder target) {
-
- model.swapItems(viewHolder.getAdapterPosition(), target.getAdapterPosition());
- notifyItemMoved(viewHolder.getAdapterPosition(), target.getAdapterPosition());
- return true;
- }
- @Override
- public void onSwiped(@NonNull RecyclerView.ViewHolder viewHolder, int direction) {
- int pos = viewHolder.getAdapterPosition();
- viewModel.removeItem(pos - 1);
- notifyItemRemoved(pos);
- viewModel.sendCountNotifications(); // needed after items re-arrangement
- checkTransactionSubmittable();
- }
- });
- }
- public void setProfile(MobileLedgerProfile profile) {
- mProfile = profile;
- }
- private int addRow() {
- return addRow(null);
- }
- private int addRow(String commodity) {
- final int newAccountCount = model.addAccount(new LedgerTransactionAccount("", commodity));
- Logger.debug("new-transaction",
- String.format(Locale.US, "invoking notifyItemInserted(%d)", newAccountCount));
- // the header is at position 0
- notifyItemInserted(newAccountCount);
- model.sendCountNotifications(); // needed after holders' positions have changed
- return newAccountCount;
- }
- @NonNull
- @Override
- public NewTransactionItemHolder onCreateViewHolder(@NonNull ViewGroup parent, int viewType) {
- NewTransactionRowBinding b =
- NewTransactionRowBinding.inflate(LayoutInflater.from(parent.getContext()), parent,
- false);
-
- return new NewTransactionItemHolder(b, this);
- }
- @Override
- public void onBindViewHolder(@NonNull NewTransactionItemHolder holder, int position) {
- Logger.debug("bind", String.format(Locale.US, "Binding item at position %d", position));
- NewTransactionModel.Item item = model.getItem(position);
- holder.setData(item);
- Logger.debug("bind", String.format(Locale.US, "Bound %s item at position %d", item.getType()
- .toString(),
- position));
- }
- @Override
- public int getItemCount() {
- return model.getAccountCount() + 2;
- }
- private boolean accountListIsEmpty() {
- for (int i = 0; i < model.getAccountCount(); i++) {
- LedgerTransactionAccount acc = model.getAccount(i);
- if (!acc.getAccountName()
- .isEmpty())
- return false;
- if (acc.isAmountSet())
- return false;
- }
-
- return true;
- }
- @Override
- public void onAttachedToRecyclerView(@NonNull RecyclerView recyclerView) {
- super.onAttachedToRecyclerView(recyclerView);
- this.recyclerView = recyclerView;
- touchHelper.attachToRecyclerView(recyclerView);
- }
- @Override
- public void onDetachedFromRecyclerView(@NonNull RecyclerView recyclerView) {
- touchHelper.attachToRecyclerView(null);
- super.onDetachedFromRecyclerView(recyclerView);
- this.recyclerView = null;
- }
- public void descriptionSelected(String description) {
- debug("description selected", description);
- if (!accountListIsEmpty())
- return;
-
- String accFilter = mProfile.getPreferredAccountsFilter();
-
- ArrayList<String> params = new ArrayList<>();
- StringBuilder sb = new StringBuilder("select t.profile, t.id from transactions t");
-
- if (!TextUtils.isEmpty(accFilter)) {
- sb.append(" JOIN transaction_accounts ta")
- .append(" ON ta.profile = t.profile")
- .append(" AND ta.transaction_id = t.id");
- }
-
- sb.append(" WHERE t.description=?");
- params.add(description);
-
- if (!TextUtils.isEmpty(accFilter)) {
- sb.append(" AND ta.account_name LIKE '%'||?||'%'");
- params.add(accFilter);
- }
-
- sb.append(" ORDER BY t.year desc, t.month desc, t.day desc LIMIT 1");
-
- final String sql = sb.toString();
- debug("description", sql);
- debug("description", params.toString());
-
- Activity activity = (Activity) recyclerView.getContext();
- // FIXME: handle exceptions?
- MLDB.queryInBackground(sql, params.toArray(new String[]{}), new MLDB.CallbackHelper() {
- @Override
- public void onStart() {
- model.incrementBusyCounter();
- }
- @Override
- public void onDone() {
- model.decrementBusyCounter();
- }
- @Override
- public boolean onRow(@NonNull Cursor cursor) {
- final String profileUUID = cursor.getString(0);
- final int transactionId = cursor.getInt(1);
- activity.runOnUiThread(() -> loadTransactionIntoModel(profileUUID, transactionId));
- return false; // limit 1, by the way
- }
- @Override
- public void onNoRows() {
- if (TextUtils.isEmpty(accFilter))
- return;
-
- debug("description", "Trying transaction search without preferred account filter");
-
- final String broaderSql =
- "select t.profile, t.id from transactions t where t.description=?" +
- " ORDER BY year desc, month desc, day desc LIMIT 1";
- params.remove(1);
- debug("description", broaderSql);
- debug("description", description);
-
- activity.runOnUiThread(
- () -> Snackbar.make(recyclerView, R.string.ignoring_preferred_account,
- Snackbar.LENGTH_LONG)
- .show());
-
- MLDB.queryInBackground(broaderSql, new String[]{description},
- new MLDB.CallbackHelper() {
- @Override
- public void onStart() {
- model.incrementBusyCounter();
- }
- @Override
- public boolean onRow(@NonNull Cursor cursor) {
- final String profileUUID = cursor.getString(0);
- final int transactionId = cursor.getInt(1);
- activity.runOnUiThread(
- () -> loadTransactionIntoModel(profileUUID, transactionId));
- return false;
- }
- @Override
- public void onDone() {
- model.decrementBusyCounter();
- }
- });
- }
- });
- }
- private void loadTransactionIntoModel(String profileUUID, int transactionId) {
- LedgerTransaction tr;
- MobileLedgerProfile profile = Data.getProfile(profileUUID);
- if (profile == null)
- throw new RuntimeException(String.format(
- "Unable to find profile %s, which is supposed to contain transaction %d",
- profileUUID, transactionId));
-
- tr = profile.loadTransaction(transactionId);
- List<LedgerTransactionAccount> accounts = tr.getAccounts();
- NewTransactionModel.Item firstNegative = null;
- NewTransactionModel.Item firstPositive = null;
- int singleNegativeIndex = -1;
- int singlePositiveIndex = -1;
- int negativeCount = 0;
- for (int i = 0; i < accounts.size(); i++) {
- LedgerTransactionAccount acc = accounts.get(i);
- NewTransactionModel.Item item;
- if (model.getAccountCount() < i + 1) {
- model.addAccount(acc);
- notifyItemInserted(i + 1);
- }
- item = model.getItem(i + 1);
-
- item.getAccount()
- .setAccountName(acc.getAccountName());
- item.setComment(acc.getComment());
- if (acc.isAmountSet()) {
- item.getAccount()
- .setAmount(acc.getAmount());
- if (acc.getAmount() < 0) {
- if (firstNegative == null) {
- firstNegative = item;
- singleNegativeIndex = i;
- }
- else
- singleNegativeIndex = -1;
- }
- else {
- if (firstPositive == null) {
- firstPositive = item;
- singlePositiveIndex = i;
- }
- else
- singlePositiveIndex = -1;
- }
- }
- else
- item.getAccount()
- .resetAmount();
- notifyItemChanged(i + 1);
- }
-
- if (singleNegativeIndex != -1) {
- firstNegative.getAccount()
- .resetAmount();
- model.moveItemLast(singleNegativeIndex);
- }
- else if (singlePositiveIndex != -1) {
- firstPositive.getAccount()
- .resetAmount();
- model.moveItemLast(singlePositiveIndex);
- }
-
- checkTransactionSubmittable();
- model.setFocusedItem(1);
- }
- public void toggleAllEditing(boolean editable) {
- // item 0 is the header
- for (int i = 0; i <= model.getAccountCount(); i++) {
- model.getItem(i)
- .setEditable(editable);
- notifyItemChanged(i);
- // TODO perhaps do only one notification about the whole range (notifyDatasetChanged)?
- }
- }
- void reset() {
- int presentItemCount = model.getAccountCount();
- model.reset();
- notifyItemChanged(0); // header changed
- notifyItemRangeChanged(1, 2); // the two empty rows
- if (presentItemCount > 2)
- notifyItemRangeRemoved(3, presentItemCount - 2); // all the rest are gone
- }
- void updateFocusedItem(int position) {
- model.updateFocusedItem(position);
- }
- void noteFocusIsOnAccount(int position) {
- model.noteFocusChanged(position, NewTransactionModel.FocusedElement.Account);
- }
- void noteFocusIsOnAmount(int position) {
- model.noteFocusChanged(position, NewTransactionModel.FocusedElement.Amount);
- }
- void noteFocusIsOnComment(int position) {
- model.noteFocusChanged(position, NewTransactionModel.FocusedElement.Comment);
- }
- void noteFocusIsOnTransactionComment(int position) {
- model.noteFocusChanged(position, NewTransactionModel.FocusedElement.TransactionComment);
- }
- public void noteFocusIsOnDescription(int pos) {
- model.noteFocusChanged(pos, NewTransactionModel.FocusedElement.Description);
- }
- private void holdSubmittableChecks() {
- checkHoldCounter++;
- }
- private void releaseSubmittableChecks() {
- if (checkHoldCounter == 0)
- throw new RuntimeException("Asymmetrical call to releaseSubmittableChecks");
- checkHoldCounter--;
- }
- void setItemCurrency(NewTransactionModel.Item item, Currency newCurrency) {
- 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();
- }
- }
- /*
- 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() {
- if (checkHoldCounter > 0)
- return;
-
- int accounts = 0;
- final BalanceForCurrency balance = new BalanceForCurrency();
- final String descriptionText = model.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<NewTransactionModel.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 < model.items.size(); i++) {
- NewTransactionModel.Item item = model.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.isAmountValid()) {
- Logger.debug("submittable",
- String.format("Not submittable: row %d has an invalid amount", i + 1));
- submittable = false;
- }
- else 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 (NewTransactionModel.Item item : model.items) {
- if (Currency.equal(item.getCurrency(), balCurrency))
- item.setAmountHint(null);
- }
- }
- else {
- List<NewTransactionModel.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<NewTransactionModel.Item> emptyAmountList =
- itemsWithEmptyAmountForCurrency.getList(balCurrency);
-
- // suggest off-balance amount to a row and remove hints on other rows
- NewTransactionModel.Item receiver = null;
- if (!list.isEmpty())
- receiver = list.get(0);
- else if (!emptyAmountList.isEmpty())
- receiver = emptyAmountList.get(0);
-
- for (NewTransactionModel.Item item : model.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)
- addRow(balCurrency);
- }
- }
-
- // drop extra empty rows, not needed
- for (String currName : emptyRowsForCurrency.currencies()) {
- List<NewTransactionModel.Item> emptyItems = emptyRowsForCurrency.getList(currName);
- while ((model.items.size() > 2) && (emptyItems.size() > 1)) {
- NewTransactionModel.Item item = emptyItems.get(1);
- emptyItems.remove(1);
- model.removeRow(item, this);
- }
-
- // unused currency, remove last item (which is also an empty one)
- if ((model.items.size() > 2) && (emptyItems.size() == 1)) {
- List<NewTransactionModel.Item> currItems = itemsForCurrency.getList(currName);
-
- if (currItems.size() == 1) {
- NewTransactionModel.Item item = emptyItems.get(0);
- model.removeRow(item, this);
- }
- }
- }
-
- // 6) at least two rows need to be present in the ledger
- while (model.items.size() < 2)
- addRow();
-
-
- debug("submittable", submittable ? "YES" : "NO");
- model.isSubmittable.setValue(submittable);
-
- if (BuildConfig.DEBUG) {
- debug("submittable", "== Dump of all items");
- for (int i = 0; i < model.items.size(); i++) {
- NewTransactionModel.Item item = model.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)");
- model.isSubmittable.setValue(false);
- }
- catch (Exception e) {
- e.printStackTrace();
- debug("submittable", "NO (because of an Exception)");
- model.isSubmittable.setValue(false);
- }
- }
-
- private static class BalanceForCurrency {
- private final 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);
- }
- }
-
- private static class ItemsForCurrency {
- private final HashMap<String, List<NewTransactionModel.Item>> hashMap = new HashMap<>();
- @NonNull
- List<NewTransactionModel.Item> getList(@Nullable String currencyName) {
- List<NewTransactionModel.Item> list = hashMap.get(currencyName);
- if (list == null) {
- list = new ArrayList<>();
- hashMap.put(currencyName, list);
- }
- return list;
- }
- void add(@Nullable String currencyName, @NonNull NewTransactionModel.Item item) {
- getList(currencyName).add(item);
- }
- int size(@Nullable String currencyName) {
- return this.getList(currencyName)
- .size();
- }
- Set<String> currencies() {
- return hashMap.keySet();
- }
- }
-}
projects / mobile-ledger.git / blobdiff