]> git.ktnx.net Git - mobile-ledger.git/blobdiff - app/src/main/java/net/ktnx/mobileledger/model/Data.java
Data.setCurrentProfile: use setValue() instead of postValue()
[mobile-ledger.git] / app / src / main / java / net / ktnx / mobileledger / model / Data.java
index 0deda2f4592020ddbad2b3435149068f0ea1e00b..0bdbb1a229faa104af945fdab812ba4ad078ec45 100644 (file)
 /*
  * Copyright © 2019 Damyan Ivanov.
- * This file is part of Mobile-Ledger.
- * Mobile-Ledger is free software: you can distribute it and/or modify it
+ * 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.model;
 
-import net.ktnx.mobileledger.utils.ObservableAtomicInteger;
+import android.database.Cursor;
+import android.database.sqlite.SQLiteDatabase;
+import android.os.AsyncTask;
+
+import androidx.lifecycle.MutableLiveData;
+
+import net.ktnx.mobileledger.App;
+import net.ktnx.mobileledger.async.RetrieveTransactionsTask;
+import net.ktnx.mobileledger.ui.activity.MainActivity;
+import net.ktnx.mobileledger.utils.LockHolder;
+import net.ktnx.mobileledger.utils.Locker;
+import net.ktnx.mobileledger.utils.Logger;
+import net.ktnx.mobileledger.utils.MLDB;
 import net.ktnx.mobileledger.utils.ObservableList;
-import net.ktnx.mobileledger.utils.ObservableValue;
 
+import java.lang.ref.WeakReference;
+import java.text.NumberFormat;
 import java.util.ArrayList;
 import java.util.Date;
+import java.util.List;
+import java.util.Locale;
+import java.util.concurrent.atomic.AtomicInteger;
+
+import static net.ktnx.mobileledger.utils.Logger.debug;
 
 public final class Data {
-    public static TransactionList transactions = new TransactionList();
-    public static ObservableValue<ArrayList<LedgerAccount>> accounts =
-            new ObservableValue<>(new ArrayList<>());
-    public static ObservableAtomicInteger backgroundTaskCount = new ObservableAtomicInteger(0);
-    public static ObservableValue<Date> lastUpdateDate = new ObservableValue<>();
-    public static ObservableValue<MobileLedgerProfile> profile = new ObservableValue<>();
-    public static ObservableList<MobileLedgerProfile> profiles =
+    public static ObservableList<TransactionListItem> transactions =
             new ObservableList<>(new ArrayList<>());
-}
+    public static ObservableList<LedgerAccount> accounts = new ObservableList<>(new ArrayList<>());
+    public static MutableLiveData<Boolean> backgroundTasksRunning = new MutableLiveData<>(false);
+    public static MutableLiveData<Date> lastUpdateDate = new MutableLiveData<>();
+    public static MutableLiveData<MobileLedgerProfile> profile = new MutableLiveData<>();
+    public static MutableLiveData<ArrayList<MobileLedgerProfile>> profiles =
+            new MutableLiveData<>(null);
+    public static MutableLiveData<String> accountFilter = new MutableLiveData<>();
+    public static MutableLiveData<Currency.Position> currencySymbolPosition =
+            new MutableLiveData<>();
+    public static MutableLiveData<Boolean> currencyGap = new MutableLiveData<>(true);
+    public static MutableLiveData<Locale> locale = new MutableLiveData<>(Locale.getDefault());
+    private static AtomicInteger backgroundTaskCount = new AtomicInteger(0);
+    private static Locker profilesLocker = new Locker();
+    private static RetrieveTransactionsTask retrieveTransactionsTask;
+    public static void backgroundTaskStarted() {
+        int cnt = backgroundTaskCount.incrementAndGet();
+        debug("data",
+                String.format(Locale.ENGLISH, "background task count is %d after incrementing",
+                        cnt));
+        backgroundTasksRunning.postValue(cnt > 0);
+    }
+    public static void backgroundTaskFinished() {
+        int cnt = backgroundTaskCount.decrementAndGet();
+        debug("data",
+                String.format(Locale.ENGLISH, "background task count is %d after decrementing",
+                        cnt));
+        backgroundTasksRunning.postValue(cnt > 0);
+    }
+    public static void setCurrentProfile(MobileLedgerProfile newProfile) {
+        MLDB.setOption(MLDB.OPT_PROFILE_UUID, (newProfile == null) ? null : newProfile.getUuid());
+        stopTransactionsRetrieval();
+        profile.setValue(newProfile);
+    }
+    public static int getProfileIndex(MobileLedgerProfile profile) {
+        try (LockHolder ignored = profilesLocker.lockForReading()) {
+            List<MobileLedgerProfile> prList = profiles.getValue();
+            if (prList == null)
+                throw new AssertionError();
+            for (int i = 0; i < prList.size(); i++) {
+                MobileLedgerProfile p = prList.get(i);
+                if (p.equals(profile))
+                    return i;
+            }
+
+            return -1;
+        }
+    }
+    @SuppressWarnings("WeakerAccess")
+    public static int getProfileIndex(String profileUUID) {
+        try (LockHolder ignored = profilesLocker.lockForReading()) {
+            List<MobileLedgerProfile> prList = profiles.getValue();
+            if (prList == null)
+                throw new AssertionError();
+            for (int i = 0; i < prList.size(); i++) {
+                MobileLedgerProfile p = prList.get(i);
+                if (p.getUuid()
+                     .equals(profileUUID))
+                    return i;
+            }
+
+            return -1;
+        }
+    }
+    public static int retrieveCurrentThemeIdFromDb() {
+        String profileUUID = MLDB.getOption(MLDB.OPT_PROFILE_UUID, null);
+        if (profileUUID == null)
+            return -1;
+
+        SQLiteDatabase db = App.getDatabase();
+        try (Cursor c = db.rawQuery("SELECT theme from profiles where uuid=?",
+                new String[]{profileUUID}))
+        {
+            if (c.moveToNext())
+                return c.getInt(0);
+        }
+
+        return -1;
+    }
+    public static MobileLedgerProfile getProfile(String profileUUID) {
+        MobileLedgerProfile profile;
+        try (LockHolder readLock = profilesLocker.lockForReading()) {
+            List<MobileLedgerProfile> prList = profiles.getValue();
+            if ((prList == null) || prList.isEmpty()) {
+                readLock.close();
+                try (LockHolder ignored = profilesLocker.lockForWriting()) {
+                    profile = MobileLedgerProfile.loadAllFromDB(profileUUID);
+                }
+            }
+            else {
+                int i = getProfileIndex(profileUUID);
+                if (i == -1)
+                    i = 0;
+                profile = prList.get(i);
+            }
+        }
+        return profile;
+    }
+    public synchronized static void scheduleTransactionListRetrieval(MainActivity activity) {
+        if (retrieveTransactionsTask != null) {
+            Logger.debug("db", "Ignoring request for transaction retrieval - already active");
+            return;
+        }
+        MobileLedgerProfile pr = profile.getValue();
+        if (pr == null) {
+            Logger.debug("ui", "Ignoring refresh -- no current profile");
+            return;
+        }
+
+        retrieveTransactionsTask =
+                new RetrieveTransactionsTask(new WeakReference<>(activity), profile.getValue());
+        Logger.debug("db", "Created a background transaction retrieval task");
+
+        retrieveTransactionsTask.executeOnExecutor(AsyncTask.THREAD_POOL_EXECUTOR);
+    }
+    public static synchronized void stopTransactionsRetrieval() {
+        if (retrieveTransactionsTask != null)
+            retrieveTransactionsTask.cancel(false);
+    }
+    public static void transactionRetrievalDone() {
+        retrieveTransactionsTask = null;
+    }
+    public static void refreshCurrencyData(Locale locale) {
+        NumberFormat formatter = NumberFormat.getCurrencyInstance(locale);
+        java.util.Currency currency = formatter.getCurrency();
+        String symbol = currency.getSymbol();
+        Logger.debug("locale", String.format(
+                "Discovering currency symbol position for locale %s (currency is %s; symbol is %s)",
+                locale.toString(), currency.toString(), symbol));
+        String formatted = formatter.format(1234.56f);
+        Logger.debug("locale", String.format("1234.56 formats as '%s'", formatted));
+
+        if (formatted.startsWith(symbol)) {
+            currencySymbolPosition.setValue(Currency.Position.before);
+
+            // is the currency symbol directly followed by the first formatted digit?
+            final char canary = formatted.charAt(symbol.length());
+            currencyGap.setValue(canary != '1');
+        }
+        else if (formatted.endsWith(symbol)) {
+            currencySymbolPosition.setValue(Currency.Position.after);
+
+            // is the currency symbol directly preceded bu the last formatted digit?
+            final char canary = formatted.charAt(formatted.length() - symbol.length() - 1);
+            currencyGap.setValue(canary != '6');
+        }
+        else
+            currencySymbolPosition.setValue(Currency.Position.none);
+    }
+
+}
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