more thread pool async task execution

[mobile-ledger.git] / app / src / main / java / net / ktnx / mobileledger / ui / transaction_list / TransactionListViewModel.java

diff --git a/app/src/main/java/net/ktnx/mobileledger/ui/transaction_list/TransactionListViewModel.java b/app/src/main/java/net/ktnx/mobileledger/ui/transaction_list/TransactionListViewModel.java
index 52fb19761d19a6adcda5bdd14643873ffcbed927..513bf9f48f0aeef72e8649955a19ac48d574de15 100644 (file)
--- a/app/src/main/java/net/ktnx/mobileledger/ui/transaction_list/TransactionListViewModel.java
+++ b/app/src/main/java/net/ktnx/mobileledger/ui/transaction_list/TransactionListViewModel.java
@@ -1,86 +1,61 @@
 /*
- * Copyright © 2018 Damyan Ivanov.
- * This file is part of Mobile-Ledger.
- * Mobile-Ledger is free software: you can distribute it and/or modify it
+ * 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.
  *
- * Mobile-Ledger is distributed in the hope that it will be useful,
+ * 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 Mobile-Ledger. If not, see <https://www.gnu.org/licenses/>.
+ * along with MoLe. If not, see <https://www.gnu.org/licenses/>.
  */
 
 package net.ktnx.mobileledger.ui.transaction_list;
 
-import android.app.Activity;
-import android.arch.lifecycle.ViewModel;
-import android.database.Cursor;
-import android.database.sqlite.SQLiteDatabase;
-import android.util.Log;
-import android.view.View;
-import android.widget.AutoCompleteTextView;
+import android.os.AsyncTask;
 
-import net.ktnx.mobileledger.R;
-import net.ktnx.mobileledger.model.LedgerTransaction;
-import net.ktnx.mobileledger.utils.MLDB;
+import net.ktnx.mobileledger.async.UpdateTransactionsTask;
+import net.ktnx.mobileledger.model.Data;
+import net.ktnx.mobileledger.model.TransactionListItem;
+import net.ktnx.mobileledger.utils.ObservableValue;
 
-import java.util.ArrayList;
+import java.util.List;
 
-public class TransactionListViewModel extends ViewModel {
-
-    private ArrayList<LedgerTransaction> transactions;
-
-    public void reloadTransactions(TransactionListFragment context) {
-        ArrayList<LedgerTransaction> newList = new ArrayList<>();
-
-        Activity act = context.getActivity();
-
-        boolean hasFilter =
-                act.findViewById(R.id.transaction_list_account_name_filter).getVisibility() ==
-                View.VISIBLE;
-
-        String sql;
-        String[] params;
-
-        sql = "SELECT id FROM transactions  ORDER BY date desc, id desc";
-        params = null;
+import androidx.lifecycle.ViewModel;
 
-        if (hasFilter) {
-            String filterAccName = String.valueOf(
-                    ((AutoCompleteTextView) act.findViewById(R.id.transaction_filter_account_name))
-                            .getText());
-
-            if (!filterAccName.isEmpty()) {
-                sql = "SELECT distinct tr.id from transactions tr JOIN transaction_accounts ta " +
-                      "ON ta.transaction_id=tr.id WHERE ta.account_name LIKE ?||'%' AND ta" +
-                      ".amount <> 0 ORDER BY tr.date desc, tr.id desc";
-                params = new String[]{filterAccName};
-            }
-        }
+public class TransactionListViewModel extends ViewModel {
+    public static ObservableValue<Boolean> updating = new ObservableValue<>();
+    public static ObservableValue<String> updateError = new ObservableValue<>();
 
-        Log.d("tmp", sql);
-        try (SQLiteDatabase db = MLDB.getReadableDatabase()) {
-            try (Cursor cursor = db.rawQuery(sql, params)) {
-                while (cursor.moveToNext()) {
-                    newList.add(new LedgerTransaction(cursor.getInt(0)));
-                }
-                transactions = newList;
-                Log.d("transactions", "transaction list updated");
-            }
-        }
+    public static void scheduleTransactionListReload() {
+        if (Data.profile.get() == null) return;
 
+        String filter = TransactionListFragment.accountFilter.get();
+        AsyncTask<String, Void, String> task = new UTT();
+        task.executeOnExecutor(AsyncTask.THREAD_POOL_EXECUTOR, filter);
     }
-    public LedgerTransaction getTransaction(int position) {
-        if (position >= transactions.size()) return null;
+    public static TransactionListItem getTransactionListItem(int position) {
+        List<TransactionListItem> transactions = Data.transactions.get();
+        if (transactions == null) return null;
+        if (position >= transactions.size() + 1) return null;
+        if (position == transactions.size()) return new TransactionListItem();
         return transactions.get(position);
     }
-    public int getTransactionCount() {
+    public static int getTransactionCount() {
+        List<TransactionListItem> transactions = Data.transactions.get();
         if (transactions == null) return 0;
         return transactions.size();
     }
+    private static class UTT extends UpdateTransactionsTask {
+        @Override
+        protected void onPostExecute(String error) {
+            super.onPostExecute(error);
+            if (error != null) updateError.set(error);
+        }
+    }
 }