provide cloud backup functionality

[mobile-ledger.git] / app / src / main / java / net / ktnx / mobileledger / backup / ConfigReader.java

diff --git a/app/src/main/java/net/ktnx/mobileledger/backup/ConfigReader.java b/app/src/main/java/net/ktnx/mobileledger/backup/ConfigReader.java
new file mode 100644 (file)
index 0000000..7959da5
--- /dev/null
+++ b/app/src/main/java/net/ktnx/mobileledger/backup/ConfigReader.java
@@ -0,0 +1,76 @@
+/*
+ * Copyright © 2021 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.backup;
+
+import android.content.Context;
+import android.net.Uri;
+
+import net.ktnx.mobileledger.dao.ProfileDAO;
+import net.ktnx.mobileledger.db.DB;
+import net.ktnx.mobileledger.db.Profile;
+import net.ktnx.mobileledger.model.Data;
+import net.ktnx.mobileledger.utils.Misc;
+
+import java.io.FileInputStream;
+import java.io.FileNotFoundException;
+import java.io.IOException;
+
+public class ConfigReader extends ConfigIO {
+    private final OnDoneListener onDoneListener;
+    private RawConfigReader r;
+    public ConfigReader(Context context, Uri uri, OnErrorListener onErrorListener,
+                        OnDoneListener onDoneListener) throws FileNotFoundException {
+        super(context, uri, onErrorListener);
+
+        this.onDoneListener = onDoneListener;
+    }
+    @Override
+    protected String getStreamMode() {
+        return "r";
+    }
+    @Override
+    protected void initStream() {
+        RawConfigReader r = new RawConfigReader(new FileInputStream(pfd.getFileDescriptor()));
+    }
+    @Override
+    protected void processStream() throws IOException {
+        r.readConfig();
+        r.restoreAll();
+        String currentProfile = r.getCurrentProfile();
+
+        if (Data.getProfile() == null) {
+            Profile p = null;
+            final ProfileDAO dao = DB.get()
+                                     .getProfileDAO();
+            if (currentProfile != null)
+                p = dao.getByUuidSync(currentProfile);
+
+            if (p == null)
+                dao.getAnySync();
+
+            if (p != null)
+                Data.postCurrentProfile(p);
+        }
+
+        if (onDoneListener != null)
+            Misc.onMainThread(onDoneListener::done);
+    }
+    abstract static public class OnDoneListener {
+        public abstract void done();
+    }
+}