]> git.ktnx.net Git - mobile-ledger.git/blobdiff - app/src/main/java/net/ktnx/mobileledger/async/ConfigReader.java
working backup and restore of configuration settings
[mobile-ledger.git] / app / src / main / java / net / ktnx / mobileledger / async / ConfigReader.java
diff --git a/app/src/main/java/net/ktnx/mobileledger/async/ConfigReader.java b/app/src/main/java/net/ktnx/mobileledger/async/ConfigReader.java
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+/*
+ * 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.async;
+
+import android.content.Context;
+import android.net.Uri;
+import android.util.JsonReader;
+import android.util.JsonToken;
+
+import net.ktnx.mobileledger.dao.CurrencyDAO;
+import net.ktnx.mobileledger.dao.ProfileDAO;
+import net.ktnx.mobileledger.dao.TemplateHeaderDAO;
+import net.ktnx.mobileledger.db.Currency;
+import net.ktnx.mobileledger.db.DB;
+import net.ktnx.mobileledger.db.Profile;
+import net.ktnx.mobileledger.db.TemplateAccount;
+import net.ktnx.mobileledger.db.TemplateHeader;
+import net.ktnx.mobileledger.db.TemplateWithAccounts;
+import net.ktnx.mobileledger.model.Data;
+import net.ktnx.mobileledger.utils.Misc;
+
+import java.io.BufferedReader;
+import java.io.FileInputStream;
+import java.io.FileNotFoundException;
+import java.io.IOException;
+import java.io.InputStreamReader;
+import java.util.ArrayList;
+import java.util.List;
+
+public class ConfigReader extends ConfigIO {
+    private final OnDoneListener onDoneListener;
+    private JsonReader 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() {
+        r = new JsonReader(new BufferedReader(
+                new InputStreamReader(new FileInputStream(pfd.getFileDescriptor()))));
+    }
+    @Override
+    protected void processStream() throws IOException {
+        List<Currency> commodities = null;
+        List<Profile> profiles = null;
+        List<TemplateWithAccounts> templates = null;
+        String currentProfile = null;
+        r.beginObject();
+        while (r.hasNext()) {
+            String item = r.nextName();
+            switch (item) {
+                case Keys.COMMODITIES:
+                    commodities = readCommodities(r);
+                    break;
+                case Keys.PROFILES:
+                    profiles = readProfiles(r);
+                    break;
+                case Keys.TEMPLATES:
+                    templates = readTemplates(r);
+                    break;
+                case Keys.CURRENT_PROFILE:
+                    currentProfile = r.nextString();
+                    break;
+                default:
+                    throw new RuntimeException("unexpected top-level item " + item);
+            }
+        }
+        r.endObject();
+
+        restoreCommodities(commodities);
+        restoreProfiles(profiles);
+        restoreTemplates(templates);
+
+        if (Data.getProfile() == null && currentProfile != null) {
+            Profile p = DB.get()
+                          .getProfileDAO()
+                          .getByUuidSync(currentProfile);
+            if (p != null)
+                Data.setCurrentProfile(p);
+        }
+
+        if (onDoneListener != null)
+            Misc.onMainThread(onDoneListener::done);
+    }
+    private void restoreTemplates(List<TemplateWithAccounts> list) {
+        if (list == null)
+            return;
+
+        TemplateHeaderDAO dao = DB.get()
+                                  .getTemplateDAO();
+
+        for (TemplateWithAccounts t : list) {
+            if (dao.getTemplateWithAccountsByUuidSync(t.header.getUuid()) == null)
+                dao.insertSync(t);
+        }
+    }
+    private void restoreProfiles(List<Profile> list) {
+        if (list == null)
+            return;
+
+        ProfileDAO dao = DB.get()
+                           .getProfileDAO();
+
+        for (Profile p : list) {
+            if (dao.getByUuidSync(p.getUuid()) == null)
+                dao.insert(p);
+        }
+    }
+    private void restoreCommodities(List<Currency> list) {
+        if (list == null)
+            return;
+
+        CurrencyDAO dao = DB.get()
+                            .getCurrencyDAO();
+
+        for (Currency c : list) {
+            if (dao.getByNameSync(c.getName()) == null)
+                dao.insert(c);
+        }
+    }
+    private TemplateAccount readTemplateAccount(JsonReader r) throws IOException {
+        r.beginObject();
+        TemplateAccount result = new TemplateAccount(0L, 0L, 0L);
+        while (r.peek() != JsonToken.END_OBJECT) {
+            String item = r.nextName();
+            switch (item) {
+                case Keys.NAME:
+                    result.setAccountName(r.nextString());
+                    break;
+                case Keys.NAME_GROUP:
+                    result.setAccountNameMatchGroup(r.nextInt());
+                    break;
+                case Keys.COMMENT:
+                    result.setAccountComment(r.nextString());
+                    break;
+                case Keys.COMMENT_GROUP:
+                    result.setAccountCommentMatchGroup(r.nextInt());
+                    break;
+                case Keys.AMOUNT:
+                    result.setAmount((float) r.nextDouble());
+                    break;
+                case Keys.AMOUNT_GROUP:
+                    result.setAmountMatchGroup(r.nextInt());
+                    break;
+                case Keys.NEGATE_AMOUNT:
+                    result.setNegateAmount(r.nextBoolean());
+                    break;
+                case Keys.CURRENCY:
+                    result.setCurrency(r.nextLong());
+                    break;
+                case Keys.CURRENCY_GROUP:
+                    result.setCurrencyMatchGroup(r.nextInt());
+                    break;
+
+                default:
+                    throw new IllegalStateException("Unexpected template account item: " + item);
+            }
+        }
+        r.endObject();
+
+        return result;
+    }
+    private TemplateWithAccounts readTemplate(JsonReader r) throws IOException {
+        r.beginObject();
+        String name = null;
+        TemplateHeader t = new TemplateHeader(0L, "", "");
+        List<TemplateAccount> accounts = new ArrayList<>();
+
+        while (r.peek() != JsonToken.END_OBJECT) {
+            String item = r.nextName();
+            switch (item) {
+                case Keys.UUID:
+                    t.setUuid(r.nextString());
+                    break;
+                case Keys.NAME:
+                    t.setName(r.nextString());
+                    break;
+                case Keys.REGEX:
+                    t.setRegularExpression(r.nextString());
+                    break;
+                case Keys.TEST_TEXT:
+                    t.setTestText(r.nextString());
+                    break;
+                case Keys.DATE_YEAR:
+                    t.setDateYear(r.nextInt());
+                    break;
+                case Keys.DATE_YEAR_GROUP:
+                    t.setDateYearMatchGroup(r.nextInt());
+                    break;
+                case Keys.DATE_MONTH:
+                    t.setDateMonth(r.nextInt());
+                    break;
+                case Keys.DATE_MONTH_GROUP:
+                    t.setDateMonthMatchGroup(r.nextInt());
+                    break;
+                case Keys.DATE_DAY:
+                    t.setDateDay(r.nextInt());
+                    break;
+                case Keys.DATE_DAY_GROUP:
+                    t.setDateDayMatchGroup(r.nextInt());
+                    break;
+                case Keys.TRANSACTION:
+                    t.setTransactionDescription(r.nextString());
+                    break;
+                case Keys.TRANSACTION_GROUP:
+                    t.setTransactionDescriptionMatchGroup(r.nextInt());
+                    break;
+                case Keys.COMMENT:
+                    t.setTransactionComment(r.nextString());
+                    break;
+                case Keys.COMMENT_GROUP:
+                    t.setTransactionCommentMatchGroup(r.nextInt());
+                    break;
+                case Keys.IS_FALLBACK:
+                    t.setFallback(r.nextBoolean());
+                    break;
+                case Keys.ACCOUNTS:
+                    r.beginArray();
+                    while (r.peek() == JsonToken.BEGIN_OBJECT) {
+                        accounts.add(readTemplateAccount(r));
+                    }
+                    r.endArray();
+                    break;
+                default:
+                    throw new RuntimeException("Unknown template header item: " + item);
+            }
+        }
+        r.endObject();
+
+        TemplateWithAccounts result = new TemplateWithAccounts();
+        result.header = t;
+        result.accounts = accounts;
+        return result;
+    }
+    private List<TemplateWithAccounts> readTemplates(JsonReader r) throws IOException {
+        List<TemplateWithAccounts> list = new ArrayList<>();
+
+        r.beginArray();
+        while (r.peek() == JsonToken.BEGIN_OBJECT) {
+            list.add(readTemplate(r));
+        }
+        r.endArray();
+
+        return list;
+    }
+    private List<Currency> readCommodities(JsonReader r) throws IOException {
+        List<Currency> list = new ArrayList<>();
+
+        r.beginArray();
+        while (r.peek() == JsonToken.BEGIN_OBJECT) {
+            Currency c = new Currency();
+
+            r.beginObject();
+            while (r.peek() != JsonToken.END_OBJECT) {
+                final String item = r.nextName();
+                switch (item) {
+                    case Keys.NAME:
+                        c.setName(r.nextString());
+                        break;
+                    case Keys.POSITION:
+                        c.setPosition(r.nextString());
+                        break;
+                    case Keys.HAS_GAP:
+                        c.setHasGap(r.nextBoolean());
+                        break;
+                    default:
+                        throw new RuntimeException("Unknown commodity key: " + item);
+                }
+            }
+            r.endObject();
+
+            if (c.getName()
+                 .isEmpty())
+                throw new RuntimeException("Missing commodity name");
+
+            list.add(c);
+        }
+        r.endArray();
+
+        return list;
+    }
+    private List<Profile> readProfiles(JsonReader r) throws IOException {
+        List<Profile> list = new ArrayList<>();
+        r.beginArray();
+        while (r.peek() == JsonToken.BEGIN_OBJECT) {
+            Profile p = new Profile();
+            r.beginObject();
+            while (r.peek() != JsonToken.END_OBJECT) {
+                String item = r.nextName();
+
+                switch (item) {
+                    case Keys.UUID:
+                        p.setUuid(r.nextString());
+                        break;
+                    case Keys.NAME:
+                        p.setName(r.nextString());
+                        break;
+                    case Keys.URL:
+                        p.setUrl(r.nextString());
+                        break;
+                    case Keys.USE_AUTH:
+                        p.setUseAuthentication(r.nextBoolean());
+                        break;
+                    case Keys.AUTH_USER:
+                        p.setAuthUser(r.nextString());
+                        break;
+                    case Keys.AUTH_PASS:
+                        p.setAuthPassword(r.nextString());
+                        break;
+                    case Keys.API_VER:
+                        p.setApiVersion(r.nextInt());
+                        break;
+                    case Keys.CAN_POST:
+                        p.setPermitPosting(r.nextBoolean());
+                        break;
+                    case Keys.DEFAULT_COMMODITY:
+                        p.setDefaultCommodity(r.nextString());
+                        break;
+                    case Keys.SHOW_COMMODITY:
+                        p.setShowCommodityByDefault(r.nextBoolean());
+                        break;
+                    case Keys.SHOW_COMMENTS:
+                        p.setShowCommentsByDefault(r.nextBoolean());
+                        break;
+                    case Keys.FUTURE_DATES:
+                        p.setFutureDates(r.nextInt());
+                        break;
+                    case Keys.PREF_ACCOUNT:
+                        p.setPreferredAccountsFilter(r.nextString());
+                        break;
+                    case Keys.COLOUR:
+                        p.setTheme(r.nextInt());
+                        break;
+
+
+                    default:
+                        throw new IllegalStateException("Unexpected profile item: " + item);
+                }
+            }
+            r.endObject();
+
+            list.add(p);
+        }
+        r.endArray();
+
+        return list;
+    }
+    abstract static public class OnDoneListener {
+        public abstract void done();
+    }
+}