2 * Copyright © 2021 Damyan Ivanov.
3 * This file is part of MoLe.
4 * MoLe is free software: you can distribute it and/or modify it
5 * under the term of the GNU General Public License as published by
6 * the Free Software Foundation, either version 3 of the License, or
7 * (at your opinion), any later version.
9 * MoLe is distributed in the hope that it will be useful,
10 * but WITHOUT ANY WARRANTY; without even the implied warranty of
11 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
12 * GNU General Public License terms for details.
14 * You should have received a copy of the GNU General Public License
15 * along with MoLe. If not, see <https://www.gnu.org/licenses/>.
18 package net.ktnx.mobileledger.async;
20 import net.ktnx.mobileledger.model.TransactionListItem;
21 import net.ktnx.mobileledger.ui.MainModel;
22 import net.ktnx.mobileledger.utils.Logger;
23 import net.ktnx.mobileledger.utils.SimpleDate;
25 import org.jetbrains.annotations.NotNull;
27 import java.util.Collections;
28 import java.util.Comparator;
29 import java.util.List;
30 import java.util.Locale;
31 import java.util.Objects;
33 public class TransactionDateFinder extends Thread {
34 private final MainModel model;
35 private final SimpleDate date;
36 public TransactionDateFinder(MainModel model, SimpleDate date) {
42 Logger.debug("go-to-date",
43 String.format(Locale.US, "Looking for date %04d-%02d-%02d", date.year, date.month,
45 List<TransactionListItem> transactions = Objects.requireNonNull(
46 model.getDisplayedTransactions()
48 final int transactionCount = transactions.size();
49 Logger.debug("go-to-date",
50 String.format(Locale.US, "List contains %d transactions", transactionCount));
52 TransactionListItem target = new TransactionListItem(date, true);
54 Collections.binarySearch(transactions, target, new TransactionListItemComparator());
58 model.foundTransactionItemIndex.postValue(found);
61 static class TransactionListItemComparator implements Comparator<TransactionListItem> {
63 public int compare(@NotNull TransactionListItem a, @NotNull TransactionListItem b) {
64 final TransactionListItem.Type aType = a.getType();
65 if (aType == TransactionListItem.Type.HEADER)
67 final TransactionListItem.Type bType = b.getType();
68 if (bType == TransactionListItem.Type.HEADER)
70 final SimpleDate aDate = a.getDate();
71 final SimpleDate bDate = b.getDate();
72 int res = aDate.compareTo(bDate);
74 return -res; // transactions are reverse sorted by date
76 if (aType == TransactionListItem.Type.DELIMITER) {
77 if (bType == TransactionListItem.Type.DELIMITER)
83 if (bType == TransactionListItem.Type.DELIMITER)