]> git.ktnx.net Git - mobile-ledger.git/blobdiff - app/src/main/java/net/ktnx/mobileledger/async/RetrieveTransactionsTask.java
unused variable
[mobile-ledger.git] / app / src / main / java / net / ktnx / mobileledger / async / RetrieveTransactionsTask.java
index 13941806240b07f42173e545dc3243b583b25270..4da02e823111a070efa473edcbdf8c82ab8521b3 100644 (file)
@@ -1,5 +1,5 @@
 /*
- * Copyright © 2018 Damyan Ivanov.
+ * Copyright © 2019 Damyan Ivanov.
  * This file is part of Mobile-Ledger.
  * Mobile-Ledger is free software: you can distribute it and/or modify it
  * under the term of the GNU General Public License as published by
 package net.ktnx.mobileledger.async;
 
 import android.annotation.SuppressLint;
-import android.content.SharedPreferences;
 import android.database.sqlite.SQLiteDatabase;
 import android.os.AsyncTask;
+import android.os.OperationCanceledException;
 import android.util.Log;
 
 import net.ktnx.mobileledger.R;
-import net.ktnx.mobileledger.TransactionListActivity;
+import net.ktnx.mobileledger.model.Data;
+import net.ktnx.mobileledger.model.LedgerAccount;
 import net.ktnx.mobileledger.model.LedgerTransaction;
-import net.ktnx.mobileledger.model.LedgerTransactionItem;
+import net.ktnx.mobileledger.model.LedgerTransactionAccount;
+import net.ktnx.mobileledger.model.MobileLedgerProfile;
+import net.ktnx.mobileledger.ui.activity.MainActivity;
+import net.ktnx.mobileledger.ui.transaction_list.TransactionListViewModel;
 import net.ktnx.mobileledger.utils.MLDB;
 import net.ktnx.mobileledger.utils.NetworkUtil;
 
@@ -38,72 +42,96 @@ import java.io.InputStreamReader;
 import java.lang.ref.WeakReference;
 import java.net.HttpURLConnection;
 import java.net.MalformedURLException;
+import java.net.URLDecoder;
+import java.util.ArrayList;
 import java.util.Date;
+import java.util.HashMap;
+import java.util.Stack;
 import java.util.regex.Matcher;
 import java.util.regex.Pattern;
 
 
-public class RetrieveTransactionsTask extends
-        AsyncTask<RetrieveTransactionsTask.Params, RetrieveTransactionsTask.Progress, Void> {
-    private static final Pattern transactionStartPattern = Pattern.compile("<tr class=\"title\" " +
-                                                                           "id=\"transaction-(\\d+)\"><td class=\"date\"[^\\\"]*>([\\d.-]+)</td>");
-    private static final Pattern transactionDescriptionPattern =
+public class RetrieveTransactionsTask
+        extends AsyncTask<Void, RetrieveTransactionsTask.Progress, Void> {
+    private static final int MATCHING_TRANSACTIONS_LIMIT = 50;
+    private static final Pattern reComment = Pattern.compile("^\\s*;");
+    private static final Pattern reTransactionStart = Pattern.compile("<tr class=\"title\" " +
+                                                                      "id=\"transaction-(\\d+)\"><td class=\"date\"[^\"]*>([\\d.-]+)</td>");
+    private static final Pattern reTransactionDescription =
             Pattern.compile("<tr class=\"posting\" title=\"(\\S+)\\s(.+)");
-    private static final Pattern transactionDetailsPattern =
-            Pattern.compile("^\\s+" + "(\\S[\\S\\s]+\\S)\\s\\s+([-+]?\\d[\\d,.]*)");
-    private static final Pattern endPattern = Pattern.compile("\\bid=\"addmodal\"");
-    protected WeakReference<TransactionListActivity> contextRef;
-    protected int error;
+    private static final Pattern reTransactionDetails =
+            Pattern.compile("^\\s+(\\S[\\S\\s]+\\S)\\s\\s+([-+]?\\d[\\d,.]*)(?:\\s+(\\S+)$)?");
+    private static final Pattern reEnd = Pattern.compile("\\bid=\"addmodal\"");
+    private WeakReference<MainActivity> contextRef;
+    private int error;
+    // %3A is '='
     private boolean success;
-    public RetrieveTransactionsTask(WeakReference<TransactionListActivity> contextRef) {
+    private Pattern reAccountName = Pattern.compile("/register\\?q=inacct%3A([a-zA-Z0-9%]+)\"");
+    private Pattern reAccountValue = Pattern.compile(
+            "<span class=\"[^\"]*\\bamount\\b[^\"]*\">\\s*([-+]?[\\d.,]+)(?:\\s+(\\S+))?</span>");
+    public RetrieveTransactionsTask(WeakReference<MainActivity> contextRef) {
         this.contextRef = contextRef;
     }
-    private static final void L(String msg) {
-//        Log.d("transaction-parser", msg);
+    private static void L(String msg) {
+        Log.d("transaction-parser", msg);
     }
     @Override
     protected void onProgressUpdate(Progress... values) {
         super.onProgressUpdate(values);
-        TransactionListActivity context = getContext();
+        MainActivity context = getContext();
         if (context == null) return;
         context.onRetrieveProgress(values[0]);
     }
     @Override
     protected void onPreExecute() {
         super.onPreExecute();
-        TransactionListActivity context = getContext();
+        MainActivity context = getContext();
         if (context == null) return;
         context.onRetrieveStart();
     }
     @Override
     protected void onPostExecute(Void aVoid) {
         super.onPostExecute(aVoid);
-        TransactionListActivity context = getContext();
+        MainActivity context = getContext();
         if (context == null) return;
         context.onRetrieveDone(success);
     }
+    @Override
+    protected void onCancelled() {
+        super.onCancelled();
+        MainActivity context = getContext();
+        if (context == null) return;
+        context.onRetrieveDone(false);
+    }
     @SuppressLint("DefaultLocale")
     @Override
-    protected Void doInBackground(Params... params) {
+    protected Void doInBackground(Void... params) {
+        MobileLedgerProfile profile = Data.profile.get();
         Progress progress = new Progress();
         int maxTransactionId = Progress.INDETERMINATE;
         success = false;
+        ArrayList<LedgerAccount> accountList = new ArrayList<>();
+        HashMap<String, Void> accountNames = new HashMap<>();
+        LedgerAccount lastAccount = null;
+        boolean onlyStarred = Data.optShowOnlyStarred.get();
+        Data.backgroundTaskCount.incrementAndGet();
         try {
-            HttpURLConnection http =
-                    NetworkUtil.prepare_connection(params[0].getBackendPref(), "journal");
+            HttpURLConnection http = NetworkUtil.prepareConnection("journal");
             http.setAllowUserInteraction(false);
             publishProgress(progress);
-            TransactionListActivity ctx = contextRef.get();
+            MainActivity ctx = getContext();
             if (ctx == null) return null;
-            try (SQLiteDatabase db = MLDB.getWritableDatabase(ctx)) {
+            try (SQLiteDatabase db = MLDB.getWritableDatabase()) {
                 try (InputStream resp = http.getInputStream()) {
                     if (http.getResponseCode() != 200) throw new IOException(
                             String.format("HTTP error %d", http.getResponseCode()));
                     db.beginTransaction();
                     try {
                         db.execSQL("UPDATE transactions set keep=0");
+                        db.execSQL("update account_values set keep=0;");
+                        db.execSQL("update accounts set keep=0;");
 
-                        int state = ParserState.EXPECTING_JOURNAL;
+                        ParserState state = ParserState.EXPECTING_ACCOUNT;
                         String line;
                         BufferedReader buf =
                                 new BufferedReader(new InputStreamReader(resp, "UTF-8"));
@@ -114,25 +142,100 @@ public class RetrieveTransactionsTask extends
                         LedgerTransaction transaction = null;
                         LINES:
                         while ((line = buf.readLine()) != null) {
-                            if (isCancelled()) break;
+                            throwIfCancelled();
                             Matcher m;
-                            //L(String.format("State is %d", state));
+                            m = reComment.matcher(line);
+                            if (m.find()) {
+                                // TODO: comments are ignored for now
+                                Log.v("transaction-parser", "Ignoring comment");
+                                continue;
+                            }
+                            //L(String.format("State is %d", updating));
                             switch (state) {
-                                case ParserState.EXPECTING_JOURNAL:
-                                    if (!line.isEmpty() && (line.charAt(0) == ' ')) continue;
+                                case EXPECTING_ACCOUNT:
                                     if (line.equals("<h2>General Journal</h2>")) {
                                         state = ParserState.EXPECTING_TRANSACTION;
                                         L("→ expecting transaction");
+                                        Data.accounts.set(accountList);
+                                        continue;
+                                    }
+                                    m = reAccountName.matcher(line);
+                                    if (m.find()) {
+                                        String acct_encoded = m.group(1);
+                                        String acct_name = URLDecoder.decode(acct_encoded, "UTF-8");
+                                        acct_name = acct_name.replace("\"", "");
+                                        L(String.format("found account: %s", acct_name));
+
+                                        lastAccount = profile.loadAccount(acct_name);
+                                        if (lastAccount == null) {
+                                            lastAccount = new LedgerAccount(acct_name);
+                                            profile.storeAccount(lastAccount);
+                                        }
+
+                                        // make sure the parent account(s) are present,
+                                        // synthesising them if necessary
+                                        String parentName = lastAccount.getParentName();
+                                        if (parentName != null) {
+                                            Stack<String> toAppend = new Stack<>();
+                                            while (parentName != null) {
+                                                if (accountNames.containsKey(parentName)) break;
+                                                toAppend.push(parentName);
+                                                parentName = new LedgerAccount(parentName)
+                                                        .getParentName();
+                                            }
+                                            while (!toAppend.isEmpty()) {
+                                                String aName = toAppend.pop();
+                                                LedgerAccount acc = new LedgerAccount(aName);
+                                                acc.setHidden(lastAccount.isHidden());
+                                                if (!onlyStarred || !acc.isHidden())
+                                                    accountList.add(acc);
+                                                L(String.format("gap-filling with %s", aName));
+                                                accountNames.put(aName, null);
+                                                profile.storeAccount(acc);
+                                            }
+                                        }
+
+                                        if (!onlyStarred || !lastAccount.isHidden())
+                                            accountList.add(lastAccount);
+                                        accountNames.put(acct_name, null);
+
+                                        state = ParserState.EXPECTING_ACCOUNT_AMOUNT;
+                                        L("→ expecting account amount");
+                                    }
+                                    break;
+
+                                case EXPECTING_ACCOUNT_AMOUNT:
+                                    m = reAccountValue.matcher(line);
+                                    boolean match_found = false;
+                                    while (m.find()) {
+                                        throwIfCancelled();
+
+                                        match_found = true;
+                                        String value = m.group(1);
+                                        String currency = m.group(2);
+                                        if (currency == null) currency = "";
+                                        value = value.replace(',', '.');
+                                        L("curr=" + currency + ", value=" + value);
+                                        profile.storeAccountValue(lastAccount.getName(), currency,
+                                                Float.valueOf(value));
+                                        lastAccount.addAmount(Float.parseFloat(value), currency);
+                                    }
+
+                                    if (match_found) {
+                                        state = ParserState.EXPECTING_ACCOUNT;
+                                        L("→ expecting account");
                                     }
+
                                     break;
-                                case ParserState.EXPECTING_TRANSACTION:
+
+                                case EXPECTING_TRANSACTION:
                                     if (!line.isEmpty() && (line.charAt(0) == ' ')) continue;
-                                    m = transactionStartPattern.matcher(line);
+                                    m = reTransactionStart.matcher(line);
                                     if (m.find()) {
                                         transactionId = Integer.valueOf(m.group(1));
                                         state = ParserState.EXPECTING_TRANSACTION_DESCRIPTION;
                                         L(String.format(
-                                                "found transaction %d → expecting " + "description",
+                                                "found transaction %d → expecting description",
                                                 transactionId));
                                         progress.setProgress(++processedTransactionCount);
                                         if (maxTransactionId < transactionId)
@@ -142,16 +245,17 @@ public class RetrieveTransactionsTask extends
                                             progress.setTotal(transactionId);
                                         publishProgress(progress);
                                     }
-                                    m = endPattern.matcher(line);
+                                    m = reEnd.matcher(line);
                                     if (m.find()) {
-                                        L("--- transaction list complete ---");
+                                        L("--- transaction value complete ---");
                                         success = true;
                                         break LINES;
                                     }
                                     break;
-                                case ParserState.EXPECTING_TRANSACTION_DESCRIPTION:
+
+                                case EXPECTING_TRANSACTION_DESCRIPTION:
                                     if (!line.isEmpty() && (line.charAt(0) == ' ')) continue;
-                                    m = transactionDescriptionPattern.matcher(line);
+                                    m = reTransactionDescription.matcher(line);
                                     if (m.find()) {
                                         if (transactionId == 0)
                                             throw new TransactionParserException(
@@ -167,18 +271,26 @@ public class RetrieveTransactionsTask extends
                                                 m.group(1), m.group(2)));
                                     }
                                     break;
-                                case ParserState.EXPECTING_TRANSACTION_DETAILS:
+
+                                case EXPECTING_TRANSACTION_DETAILS:
                                     if (line.isEmpty()) {
                                         // transaction data collected
                                         if (transaction.existsInDb(db)) {
-                                            db.execSQL("UPDATE transactions SET keep = 1 WHERE id" +
-                                                       "=?", new Integer[]{transaction.getId()});
+                                            db.execSQL("UPDATE transactions SET keep = 1 WHERE " +
+                                                       "profile = ? and id=?",
+                                                    new Object[]{profile.getUuid(),
+                                                                 transaction.getId()
+                                                    });
                                             matchedTransactionsCount++;
 
-                                            if (matchedTransactionsCount == 100) {
+                                            if (matchedTransactionsCount ==
+                                                MATCHING_TRANSACTIONS_LIMIT)
+                                            {
                                                 db.execSQL("UPDATE transactions SET keep=1 WHERE " +
-                                                           "id < ?",
-                                                        new Integer[]{transaction.getId()});
+                                                           "profile = ? and id < ?",
+                                                        new Object[]{profile.getUuid(),
+                                                                     transaction.getId()
+                                                        });
                                                 success = true;
                                                 progress.setTotal(progress.getProgress());
                                                 publishProgress(progress);
@@ -186,20 +298,16 @@ public class RetrieveTransactionsTask extends
                                             }
                                         }
                                         else {
-                                            db.execSQL("DELETE from transactions WHERE id=?",
-                                                    new Integer[]{transaction.getId()});
-                                            db.execSQL("DELETE from transaction_accounts WHERE " +
-                                                       "transaction_id=?",
-                                                    new Integer[]{transaction.getId()});
-                                            transaction.insertInto(db);
+                                            profile.storeTransaction(transaction);
                                             matchedTransactionsCount = 0;
                                             progress.setTotal(maxTransactionId);
                                         }
 
                                         state = ParserState.EXPECTING_TRANSACTION;
                                         L(String.format(
-                                                "transaction %s saved → expecting " + "transaction",
+                                                "transaction %s saved → expecting transaction",
                                                 transaction.getId()));
+                                        transaction.finishLoading();
 
 // sounds like a good idea, but transaction-1 may not be the first one chronologically
 // for example, when you add the initial seeding transaction after entering some others
@@ -210,41 +318,48 @@ public class RetrieveTransactionsTask extends
 //                                            }
                                     }
                                     else {
-                                        m = transactionDetailsPattern.matcher(line);
+                                        m = reTransactionDetails.matcher(line);
                                         if (m.find()) {
                                             String acc_name = m.group(1);
                                             String amount = m.group(2);
+                                            String currency = m.group(3);
+                                            if (currency == null) currency = "";
                                             amount = amount.replace(',', '.');
-                                            transaction.add_item(new LedgerTransactionItem(acc_name,
-                                                    Float.valueOf(amount)));
-                                            L(String.format("%s = %s", acc_name, amount));
+                                            transaction.addAccount(
+                                                    new LedgerTransactionAccount(acc_name,
+                                                            Float.valueOf(amount), currency));
+                                            L(String.format("%d: %s = %s", transaction.getId(),
+                                                    acc_name, amount));
                                         }
-                                        else throw new IllegalStateException(
-                                                String.format("Can't parse transaction %d details",
-                                                        transactionId));
+                                        else throw new IllegalStateException(String.format(
+                                                "Can't parse transaction %d " + "details: %s",
+                                                transactionId, line));
                                     }
                                     break;
                                 default:
                                     throw new RuntimeException(
-                                            String.format("Unknown parser state %d", state));
+                                            String.format("Unknown parser updating %s",
+                                                    state.name()));
                             }
                         }
-                        if (!isCancelled()) {
-                            db.execSQL("DELETE FROM transactions WHERE keep = 0");
-                            db.setTransactionSuccessful();
-                        }
+
+                        throwIfCancelled();
+
+                        db.execSQL("DELETE FROM transactions WHERE profile=? AND keep = 0",
+                                new String[]{profile.getUuid()});
+                        db.setTransactionSuccessful();
+
+                        Log.d("db", "Updating transaction value stamp");
+                        Date now = new Date();
+                        profile.setLongOption(MLDB.OPT_LAST_SCRAPE, now.getTime());
+                        Data.lastUpdateDate.set(now);
+                        TransactionListViewModel.scheduleTransactionListReload();
                     }
                     finally {
                         db.endTransaction();
                     }
                 }
             }
-
-            if (success && !isCancelled()) {
-                Log.d("db", "Updating transaction list stamp");
-                MLDB.set_option_value(ctx, MLDB.OPT_TRANSACTION_LIST_STAMP, new Date().getTime());
-                ctx.model.reloadTransactions(ctx);
-            }
         }
         catch (MalformedURLException e) {
             error = R.string.err_bad_backend_url;
@@ -258,21 +373,25 @@ public class RetrieveTransactionsTask extends
             error = R.string.err_net_io_error;
             e.printStackTrace();
         }
+        catch (OperationCanceledException e) {
+            error = R.string.err_cancelled;
+            e.printStackTrace();
+        }
+        finally {
+            Data.backgroundTaskCount.decrementAndGet();
+        }
         return null;
     }
-    TransactionListActivity getContext() {
+    private MainActivity getContext() {
         return contextRef.get();
     }
+    private void throwIfCancelled() {
+        if (isCancelled()) throw new OperationCanceledException(null);
+    }
 
-    public static class Params {
-        private SharedPreferences backendPref;
-
-        public Params(SharedPreferences backendPref) {
-            this.backendPref = backendPref;
-        }
-        SharedPreferences getBackendPref() {
-            return backendPref;
-        }
+    private enum ParserState {
+        EXPECTING_ACCOUNT, EXPECTING_ACCOUNT_AMOUNT, EXPECTING_JOURNAL, EXPECTING_TRANSACTION,
+        EXPECTING_TRANSACTION_DESCRIPTION, EXPECTING_TRANSACTION_DETAILS
     }
 
     public class Progress {
@@ -305,11 +424,4 @@ public class RetrieveTransactionsTask extends
             super(message);
         }
     }
-
-    private class ParserState {
-        static final int EXPECTING_JOURNAL = 0;
-        static final int EXPECTING_TRANSACTION = 1;
-        static final int EXPECTING_TRANSACTION_DESCRIPTION = 2;
-        static final int EXPECTING_TRANSACTION_DETAILS = 3;
-    }
 }