add AccountRepository

src/main/java/eu/siacs/conversations/ui/util/PendingItem.java

@@ -29,6 +29,8 @@
 
 package eu.siacs.conversations.ui.util;
 
+import java.util.function.Supplier;
+
 public class PendingItem<T> {
 
     private T item = null;
@@ -47,6 +49,13 @@ public class PendingItem<T> {
         return item;
     }
 
+    public synchronized T peekOrCreate(final Supplier<T> supplier) {
+        if (this.item == null) {
+            this.item = supplier.get();
+        }
+        return this.item;
+    }
+
     public synchronized boolean clear() {
         boolean notNull = this.item != null;
         this.item = null;

src/main/java/im/conversations/android/repository/AbstractRepository.java

@@ -0,0 +1,15 @@
+package im.conversations.android.repository;
+
+import android.content.Context;
+import im.conversations.android.database.ConversationsDatabase;
+
+public abstract class AbstractRepository {
+
+    protected final Context context;
+    protected final ConversationsDatabase database;
+
+    protected AbstractRepository(final Context context) {
+        this.context = context;
+        this.database = ConversationsDatabase.getInstance(context);
+    }
+}

src/main/java/im/conversations/android/repository/AccountRepository.java

@@ -0,0 +1,36 @@
+package im.conversations.android.repository;
+
+import android.content.Context;
+import androidx.annotation.NonNull;
+import com.google.common.base.Preconditions;
+import eu.siacs.conversations.xmpp.Jid;
+import im.conversations.android.IDs;
+import im.conversations.android.database.CredentialStore;
+import im.conversations.android.database.entity.AccountEntity;
+import im.conversations.android.database.model.Account;
+
+public class AccountRepository extends AbstractRepository {
+
+    public AccountRepository(final Context context) {
+        super(context);
+    }
+
+    public Account createAccount(@NonNull final Jid address, final String password) {
+        Preconditions.checkArgument(
+                address.isBareJid(), "Account should be specified without resource");
+        Preconditions.checkArgument(password != null, "Missing password");
+        final byte[] randomSeed = IDs.seed();
+        final var entity = new AccountEntity();
+        entity.address = address;
+        entity.enabled = true;
+        entity.randomSeed = randomSeed;
+        final long id = database.accountDao().insert(entity);
+        final var account = new Account(id, address, entity.randomSeed);
+        try {
+            CredentialStore.getInstance(context).setPassword(account, password);
+        } catch (final Exception e) {
+            throw new IllegalStateException("Could not store password", e);
+        }
+        return account;
+    }
+}

src/main/java/im/conversations/android/xmpp/ConnectionException.java

@@ -0,0 +1,10 @@
+package im.conversations.android.xmpp;
+
+public class ConnectionException extends Exception {
+
+    private final ConnectionState connectionState;
+
+    public ConnectionException(ConnectionState state) {
+        this.connectionState = state;
+    }
+}

src/main/java/im/conversations/android/xmpp/XmppConnection.java

@@ -30,6 +30,7 @@ import eu.siacs.conversations.persistance.FileBackend;
 import eu.siacs.conversations.services.MemorizingTrustManager;
 import eu.siacs.conversations.services.MessageArchiveService;
 import eu.siacs.conversations.services.NotificationService;
+import eu.siacs.conversations.ui.util.PendingItem;
 import eu.siacs.conversations.utils.Patterns;
 import eu.siacs.conversations.utils.PhoneHelper;
 import eu.siacs.conversations.utils.Resolver;
@@ -160,6 +161,7 @@ public class XmppConnection implements Runnable {
     private final Consumer<Jid> bindConsumer;
     private final ClassToInstanceMap<AbstractManager> managers;
     private Consumer<XmppConnection> statusListener = null;
+    private PendingItem<SettableFuture<XmppConnection>> connectedFuture = new PendingItem<>();
     private SaslMechanism saslMechanism;
     private HashedToken.Mechanism hashTokenRequest;
     private HttpUrl redirectionUrl = null;
@@ -244,6 +246,16 @@ public class XmppConnection implements Runnable {
             if (nextStatus.isError() || nextStatus == ConnectionState.ONLINE) {
                 this.recentErrorConnectionState = nextStatus;
             }
+            if (nextStatus != ConnectionState.CONNECTING && nextStatus != ConnectionState.OFFLINE) {
+                final var future = this.connectedFuture.pop();
+                if (future != null) {
+                    if (nextStatus == ConnectionState.ONLINE) {
+                        future.set(this);
+                    } else {
+                        future.setException(new ConnectionException(nextStatus));
+                    }
+                }
+            }
         }
         if (statusListener != null) {
             statusListener.accept(this);
@@ -2225,6 +2237,15 @@ public class XmppConnection implements Runnable {
         this.statusListener = listener;
     }
 
+    public ListenableFuture<XmppConnection> asConnectedFuture() {
+        synchronized (this) {
+            if (this.connectionState == ConnectionState.ONLINE) {
+                return Futures.immediateFuture(this);
+            }
+            return this.connectedFuture.peekOrCreate(SettableFuture::create);
+        }
+    }
+
     private void forceCloseSocket() {
         FileBackend.close(this.socket);
         FileBackend.close(this.tagReader);