app/src/main/java/net/ktnx/mobileledger/async/UpdateTransactionsTask.java

   1 /*
   2  * Copyright © 2019 Damyan Ivanov.
   3  * This file is part of MoLe.
   4  * MoLe is free software: you can distribute it and/or modify it
   5  * under the term of the GNU General Public License as published by
   6  * the Free Software Foundation, either version 3 of the License, or
   7  * (at your opinion), any later version.
   8  *
   9  * MoLe is distributed in the hope that it will be useful,
  10  * but WITHOUT ANY WARRANTY; without even the implied warranty of
  11  * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
  12  * GNU General Public License terms for details.
  13  *
  14  * You should have received a copy of the GNU General Public License
  15  * along with MoLe. If not, see <https://www.gnu.org/licenses/>.
  16  */
  17
  18 package net.ktnx.mobileledger.async;
  19
  20 import android.database.Cursor;
  21 import android.database.sqlite.SQLiteDatabase;
  22 import android.os.AsyncTask;
  23
  24 import net.ktnx.mobileledger.App;
  25 import net.ktnx.mobileledger.model.Data;
  26 import net.ktnx.mobileledger.model.LedgerTransaction;
  27 import net.ktnx.mobileledger.model.MobileLedgerProfile;
  28 import net.ktnx.mobileledger.model.TransactionListItem;
  29 import net.ktnx.mobileledger.utils.Globals;
  30
  31 import java.text.ParseException;
  32 import java.util.ArrayList;
  33 import java.util.Calendar;
  34 import java.util.Date;
  35
  36 import static net.ktnx.mobileledger.utils.Logger.debug;
  37
  38 public class UpdateTransactionsTask extends AsyncTask<String, Void, String> {
  39     protected String doInBackground(String[] filterAccName) {
  40         final MobileLedgerProfile profile = Data.profile.getValue();
  41         if (profile == null) return "Profile not configured";
  42
  43         String profile_uuid = profile.getUuid();
  44         Data.backgroundTaskStarted();
  45         try {
  46             ArrayList<TransactionListItem> newList = new ArrayList<>();
  47
  48             String sql;
  49             String[] params;
  50
  51             if (filterAccName[0] == null) {
  52                 sql = "SELECT id, date FROM transactions WHERE profile=? ORDER BY date desc, id " +
  53                       "desc";
  54                 params = new String[]{profile_uuid};
  55
  56             }
  57             else {
  58                 sql = "SELECT distinct tr.id, tr.date from transactions tr JOIN " +
  59                       "transaction_accounts ta " +
  60                       "ON ta.transaction_id=tr.id AND ta.profile=tr.profile WHERE tr.profile=? " +
  61                       "and ta.account_name LIKE ?||'%' AND ta" +
  62                       ".amount <> 0 ORDER BY tr.date desc, tr.id desc";
  63                 params = new String[]{profile_uuid, filterAccName[0]};
  64             }
  65
  66             debug("UTT", sql);
  67             SQLiteDatabase db = App.getDatabase();
  68             String lastDateString = Globals.formatLedgerDate(new Date());
  69             Calendar lastDate = Globals.parseLedgerDateAsCalendar(lastDateString);
  70             boolean odd = true;
  71             try (Cursor cursor = db.rawQuery(sql, params)) {
  72                 while (cursor.moveToNext()) {
  73                     if (isCancelled())
  74                         return null;
  75
  76                     int transaction_id = cursor.getInt(0);
  77                     String dateString = cursor.getString(1);
  78                     Calendar date = Globals.parseLedgerDateAsCalendar(dateString);
  79
  80                     if (!lastDateString.equals(dateString)) {
  81                         boolean showMonth =
  82                                 (date.get(Calendar.MONTH) != lastDate.get(Calendar.MONTH)) ||
  83                                 (date.get(Calendar.YEAR) != lastDate.get(Calendar.YEAR));
  84                         newList.add(new TransactionListItem(date.getTime(), showMonth));
  85                     }
  86                     newList.add(
  87                             new TransactionListItem(new LedgerTransaction(transaction_id), odd));
  88 //                    debug("UTT", String.format("got transaction %d", transaction_id));
  89
  90                     lastDate = date;
  91                     lastDateString = dateString;
  92                     odd = !odd;
  93                 }
  94                 Data.transactions.setList(newList);
  95                 debug("UTT", "transaction list value updated");
  96             }
  97
  98             return null;
  99         }
 100         catch (ParseException e) {
 101             return String.format("Error parsing stored date '%s'", e.getMessage());
 102         }
 103         finally {
 104             Data.backgroundTaskFinished();
 105         }
 106     }
 107 }