major rework of parsed transaction/descriptions/accounts storage

[mobile-ledger-staging.git] / app / src / main / java / net / ktnx / mobileledger / async / TransactionAccumulator.java

diff --git a/app/src/main/java/net/ktnx/mobileledger/async/TransactionAccumulator.java b/app/src/main/java/net/ktnx/mobileledger/async/TransactionAccumulator.java
new file mode 100644 (file)
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--- /dev/null
+++ b/app/src/main/java/net/ktnx/mobileledger/async/TransactionAccumulator.java
@@ -0,0 +1,58 @@
+/*
+ * 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
+ * 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.async;
+
+import net.ktnx.mobileledger.model.LedgerTransaction;
+import net.ktnx.mobileledger.model.TransactionListItem;
+import net.ktnx.mobileledger.ui.MainModel;
+import net.ktnx.mobileledger.utils.SimpleDate;
+
+import java.util.ArrayList;
+
+public class TransactionAccumulator {
+    private final ArrayList<TransactionListItem> list = new ArrayList<>();
+    private final MainModel model;
+    private SimpleDate earliestDate, latestDate;
+    private SimpleDate lastDate = SimpleDate.today();
+    private boolean done;
+    public TransactionAccumulator(MainModel model) {
+        this.model = model;
+    }
+    public void put(LedgerTransaction transaction, SimpleDate date) {
+        if (done)
+            throw new IllegalStateException("Can't put new items after done()");
+        if (null == latestDate)
+            latestDate = date;
+        earliestDate = date;
+
+        if (!date.equals(lastDate)) {
+            boolean showMonth = date.month != lastDate.month || date.year != lastDate.year;
+            list.add(new TransactionListItem(date, showMonth));
+        }
+
+        list.add(new TransactionListItem(transaction));
+
+        lastDate = date;
+    }
+    public void done() {
+        done = true;
+        model.setDisplayedTransactions(list);
+        model.setFirstTransactionDate(earliestDate);
+        model.setLastTransactionDate(latestDate);
+    }
+}