app/src/main/java/net/ktnx/mobileledger/ui/activity/MainActivity.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.ui.activity;
  19
  20 import android.content.Intent;
  21 import android.content.SharedPreferences;
  22 import android.content.pm.PackageInfo;
  23 import android.content.pm.ShortcutInfo;
  24 import android.content.pm.ShortcutManager;
  25 import android.content.res.ColorStateList;
  26 import android.graphics.Color;
  27 import android.graphics.drawable.Icon;
  28 import android.os.AsyncTask;
  29 import android.os.Build;
  30 import android.os.Bundle;
  31 import android.util.Log;
  32 import android.view.View;
  33 import android.view.ViewGroup;
  34 import android.view.ViewPropertyAnimator;
  35 import android.view.animation.Animation;
  36 import android.view.animation.AnimationUtils;
  37 import android.widget.LinearLayout;
  38 import android.widget.ProgressBar;
  39 import android.widget.TextView;
  40 import android.widget.Toast;
  41
  42 import com.google.android.material.floatingactionbutton.FloatingActionButton;
  43
  44 import net.ktnx.mobileledger.R;
  45 import net.ktnx.mobileledger.async.DbOpQueue;
  46 import net.ktnx.mobileledger.async.RefreshDescriptionsTask;
  47 import net.ktnx.mobileledger.async.RetrieveTransactionsTask;
  48 import net.ktnx.mobileledger.model.Data;
  49 import net.ktnx.mobileledger.model.LedgerAccount;
  50 import net.ktnx.mobileledger.model.MobileLedgerProfile;
  51 import net.ktnx.mobileledger.ui.account_summary.AccountSummaryAdapter;
  52 import net.ktnx.mobileledger.ui.account_summary.AccountSummaryFragment;
  53 import net.ktnx.mobileledger.ui.account_summary.AccountSummaryViewModel;
  54 import net.ktnx.mobileledger.ui.profiles.ProfileDetailFragment;
  55 import net.ktnx.mobileledger.ui.profiles.ProfilesRecyclerViewAdapter;
  56 import net.ktnx.mobileledger.ui.transaction_list.TransactionListFragment;
  57 import net.ktnx.mobileledger.ui.transaction_list.TransactionListViewModel;
  58 import net.ktnx.mobileledger.utils.Colors;
  59 import net.ktnx.mobileledger.utils.GetOptCallback;
  60 import net.ktnx.mobileledger.utils.LockHolder;
  61 import net.ktnx.mobileledger.utils.MLDB;
  62
  63 import org.jetbrains.annotations.NotNull;
  64
  65 import java.text.DateFormat;
  66 import java.util.ArrayList;
  67 import java.util.Date;
  68 import java.util.List;
  69 import java.util.Locale;
  70 import java.util.Observer;
  71
  72 import androidx.appcompat.app.ActionBarDrawerToggle;
  73 import androidx.appcompat.widget.Toolbar;
  74 import androidx.core.view.GravityCompat;
  75 import androidx.drawerlayout.widget.DrawerLayout;
  76 import androidx.fragment.app.Fragment;
  77 import androidx.fragment.app.FragmentManager;
  78 import androidx.fragment.app.FragmentPagerAdapter;
  79 import androidx.recyclerview.widget.LinearLayoutManager;
  80 import androidx.recyclerview.widget.RecyclerView;
  81 import androidx.viewpager.widget.ViewPager;
  82
  83 import static net.ktnx.mobileledger.utils.Logger.debug;
  84
  85 public class MainActivity extends ProfileThemedActivity {
  86     public static final String STATE_CURRENT_PAGE = "current_page";
  87     public static final String BUNDLE_SAVED_STATE = "bundle_savedState";
  88     public static final String STATE_ACC_FILTER = "account_filter";
  89     private static final String PREF_THEME_ID = "themeId";
  90     public AccountSummaryFragment mAccountSummaryFragment;
  91     DrawerLayout drawer;
  92     private LinearLayout profileListContainer;
  93     private View profileListHeadArrow, profileListHeadMore, profileListHeadCancel;
  94     private FragmentManager fragmentManager;
  95     private View bTransactionListCancelDownload;
  96     private ProgressBar progressBar;
  97     private LinearLayout progressLayout;
  98     private SectionsPagerAdapter mSectionsPagerAdapter;
  99     private ViewPager mViewPager;
 100     private FloatingActionButton fab;
 101     private boolean profileListExpanded = false;
 102     private ProfilesRecyclerViewAdapter mProfileListAdapter;
 103     private int mCurrentPage;
 104     private String mAccountFilter;
 105     private boolean mBackMeansToAccountList = false;
 106     private Toolbar mToolbar;
 107     private DrawerLayout.SimpleDrawerListener drawerListener;
 108     private ActionBarDrawerToggle barDrawerToggle;
 109     private ViewPager.SimpleOnPageChangeListener pageChangeListener;
 110     private Observer editingProfilesObserver;
 111     private MobileLedgerProfile profile;
 112     @Override
 113     protected void onStart() {
 114         super.onStart();
 115
 116         debug("flow", "MainActivity.onStart()");
 117         mViewPager.setCurrentItem(mCurrentPage, false);
 118         if (mAccountFilter != null) showTransactionsFragment(mAccountFilter);
 119         else Data.accountFilter.setValue(null);
 120
 121     }
 122     @Override
 123     protected void onSaveInstanceState(@NotNull Bundle outState) {
 124         super.onSaveInstanceState(outState);
 125         outState.putInt(STATE_CURRENT_PAGE, mViewPager.getCurrentItem());
 126         if (mAccountFilter != null) outState.putString(STATE_ACC_FILTER, mAccountFilter);
 127     }
 128     @Override
 129     protected void onDestroy() {
 130         mSectionsPagerAdapter = null;
 131         RecyclerView root = findViewById(R.id.nav_profile_list);
 132         if (root != null) root.setAdapter(null);
 133         if (drawer != null) drawer.removeDrawerListener(drawerListener);
 134         drawerListener = null;
 135         if (drawer != null) drawer.removeDrawerListener(barDrawerToggle);
 136         barDrawerToggle = null;
 137         if (mViewPager != null) mViewPager.removeOnPageChangeListener(pageChangeListener);
 138         pageChangeListener = null;
 139         if (mProfileListAdapter != null)
 140             mProfileListAdapter.deleteEditingProfilesObserver(editingProfilesObserver);
 141         editingProfilesObserver = null;
 142         super.onDestroy();
 143     }
 144     @Override
 145     protected void setupProfileColors() {
 146         SharedPreferences prefs = getPreferences(MODE_PRIVATE);
 147         int profileColor = prefs.getInt(PREF_THEME_ID, -2);
 148         if (profileColor == -2) profileColor = Data.retrieveCurrentThemeIdFromDb();
 149         Colors.setupTheme(this, profileColor);
 150         Colors.profileThemeId = profileColor;
 151         storeThemeIdInPrefs(profileColor);
 152     }
 153     @Override
 154     protected void onCreate(Bundle savedInstanceState) {
 155         super.onCreate(savedInstanceState);
 156         debug("flow", "MainActivity.onCreate()");
 157         setContentView(R.layout.activity_main);
 158
 159         fab = findViewById(R.id.btn_add_transaction);
 160         profileListContainer = findViewById(R.id.nav_profile_list_container);
 161         profileListHeadArrow = findViewById(R.id.nav_profiles_arrow);
 162         profileListHeadMore = findViewById(R.id.nav_profiles_start_edit);
 163         profileListHeadCancel = findViewById(R.id.nav_profiles_cancel_edit);
 164         LinearLayout profileListHeadMoreAndCancel =
 165                 findViewById(R.id.nav_profile_list_head_buttons);
 166         drawer = findViewById(R.id.drawer_layout);
 167         bTransactionListCancelDownload = findViewById(R.id.transaction_list_cancel_download);
 168         progressBar = findViewById(R.id.transaction_list_progress_bar);
 169         progressLayout = findViewById(R.id.transaction_progress_layout);
 170         fragmentManager = getSupportFragmentManager();
 171         mSectionsPagerAdapter = new SectionsPagerAdapter(fragmentManager);
 172         mViewPager = findViewById(R.id.root_frame);
 173
 174         Bundle extra = getIntent().getBundleExtra(BUNDLE_SAVED_STATE);
 175         if (extra != null && savedInstanceState == null) savedInstanceState = extra;
 176
 177
 178         mToolbar = findViewById(R.id.toolbar);
 179         setSupportActionBar(mToolbar);
 180
 181         Data.profile.observe(this, this::onProfileChanged);
 182
 183         Data.profiles.observe(this, this::onProfileListChanged);
 184
 185         if (barDrawerToggle == null) {
 186             barDrawerToggle = new ActionBarDrawerToggle(this, drawer, mToolbar,
 187                     R.string.navigation_drawer_open, R.string.navigation_drawer_close);
 188             drawer.addDrawerListener(barDrawerToggle);
 189         }
 190         barDrawerToggle.syncState();
 191
 192         TextView ver = drawer.findViewById(R.id.drawer_version_text);
 193
 194         try {
 195             PackageInfo pi =
 196                     getApplicationContext().getPackageManager().getPackageInfo(getPackageName(), 0);
 197             ver.setText(pi.versionName);
 198         }
 199         catch (Exception e) {
 200             e.printStackTrace();
 201         }
 202
 203         if (progressBar == null)
 204             throw new RuntimeException("Can't get hold on the transaction value progress bar");
 205         if (progressLayout == null) throw new RuntimeException(
 206                 "Can't get hold on the transaction value progress bar layout");
 207
 208         markDrawerItemCurrent(R.id.nav_account_summary);
 209
 210         mViewPager.setAdapter(mSectionsPagerAdapter);
 211
 212         if (pageChangeListener == null) {
 213             pageChangeListener = new ViewPager.SimpleOnPageChangeListener() {
 214                 @Override
 215                 public void onPageSelected(int position) {
 216                     switch (position) {
 217                         case 0:
 218                             markDrawerItemCurrent(R.id.nav_account_summary);
 219                             break;
 220                         case 1:
 221                             markDrawerItemCurrent(R.id.nav_latest_transactions);
 222                             break;
 223                         default:
 224                             Log.e("MainActivity",
 225                                     String.format("Unexpected page index %d", position));
 226                     }
 227
 228                     super.onPageSelected(position);
 229                 }
 230             };
 231             mViewPager.addOnPageChangeListener(pageChangeListener);
 232         }
 233
 234         mCurrentPage = 0;
 235         if (savedInstanceState != null) {
 236             int currentPage = savedInstanceState.getInt(STATE_CURRENT_PAGE, -1);
 237             if (currentPage != -1) {
 238                 mCurrentPage = currentPage;
 239             }
 240             mAccountFilter = savedInstanceState.getString(STATE_ACC_FILTER, null);
 241         }
 242         else mAccountFilter = null;
 243
 244         Data.lastUpdateDate.observe(this, this::updateLastUpdateDisplay);
 245
 246         findViewById(R.id.btn_no_profiles_add)
 247                 .setOnClickListener(v -> startEditProfileActivity(null));
 248
 249         findViewById(R.id.btn_add_transaction).setOnClickListener(this::fabNewTransactionClicked);
 250
 251         findViewById(R.id.nav_new_profile_button)
 252                 .setOnClickListener(v -> startEditProfileActivity(null));
 253
 254         RecyclerView root = findViewById(R.id.nav_profile_list);
 255         if (root == null)
 256             throw new RuntimeException("Can't get hold on the transaction value view");
 257
 258         if (mProfileListAdapter == null) mProfileListAdapter = new ProfilesRecyclerViewAdapter();
 259         root.setAdapter(mProfileListAdapter);
 260
 261         if (editingProfilesObserver == null) {
 262             editingProfilesObserver = (o, arg) -> {
 263                 if (mProfileListAdapter.isEditingProfiles()) {
 264                     profileListHeadMore.setVisibility(View.GONE);
 265                     profileListHeadMore
 266                             .startAnimation(AnimationUtils.loadAnimation(this, R.anim.fade_out));
 267                     profileListHeadCancel.setVisibility(View.VISIBLE);
 268                     profileListHeadCancel
 269                             .startAnimation(AnimationUtils.loadAnimation(this, R.anim.fade_in));
 270                 }
 271                 else {
 272                     profileListHeadCancel.setVisibility(View.GONE);
 273                     profileListHeadCancel
 274                             .startAnimation(AnimationUtils.loadAnimation(this, R.anim.fade_out));
 275                     profileListHeadMore.setVisibility(View.GONE);
 276                     if (profileListExpanded) {
 277                         profileListHeadMore.setVisibility(View.VISIBLE);
 278                         profileListHeadMore
 279                                 .startAnimation(AnimationUtils.loadAnimation(this, R.anim.fade_in));
 280                     }
 281                     else profileListHeadMore.setVisibility(View.GONE);
 282                 }
 283             };
 284             mProfileListAdapter.addEditingProfilesObserver(editingProfilesObserver);
 285         }
 286
 287         LinearLayoutManager llm = new LinearLayoutManager(this);
 288
 289         llm.setOrientation(RecyclerView.VERTICAL);
 290         root.setLayoutManager(llm);
 291
 292         profileListHeadMore.setOnClickListener((v) -> mProfileListAdapter.flipEditingProfiles());
 293         profileListHeadCancel.setOnClickListener((v) -> mProfileListAdapter.flipEditingProfiles());
 294         profileListHeadMoreAndCancel
 295                 .setOnClickListener((v) -> mProfileListAdapter.flipEditingProfiles());
 296
 297         if (drawerListener == null) {
 298             drawerListener = new DrawerLayout.SimpleDrawerListener() {
 299                 @Override
 300                 public void onDrawerClosed(View drawerView) {
 301                     super.onDrawerClosed(drawerView);
 302                     collapseProfileList();
 303                 }
 304             };
 305             drawer.addDrawerListener(drawerListener);
 306         }
 307
 308         findViewById(R.id.nav_profile_list_head_layout)
 309                 .setOnClickListener(this::navProfilesHeadClicked);
 310         findViewById(R.id.nav_profiles_label).setOnClickListener(this::navProfilesHeadClicked);
 311         setupProfile();
 312     }
 313     private void scheduleDataRetrievalIfStale(Date lastUpdate) {
 314         long now = new Date().getTime();
 315         if ((lastUpdate == null) || (now > (lastUpdate.getTime() + (24 * 3600 * 1000)))) {
 316             if (lastUpdate == null) debug("db::", "WEB data never fetched. scheduling a fetch");
 317             else debug("db", String.format(Locale.ENGLISH,
 318                     "WEB data last fetched at %1.3f and now is %1.3f. re-fetching",
 319                     lastUpdate.getTime() / 1000f, now / 1000f));
 320
 321             Data.scheduleTransactionListRetrieval(this);
 322         }
 323     }
 324     private void createShortcuts(List<MobileLedgerProfile> list) {
 325         if (Build.VERSION.SDK_INT < Build.VERSION_CODES.O) return;
 326
 327         List<ShortcutInfo> shortcuts = new ArrayList<>();
 328         int i = 0;
 329         for (MobileLedgerProfile p : list) {
 330             if (!p.isPostingPermitted()) continue;
 331
 332             ShortcutInfo si = new ShortcutInfo.Builder(this, "new_transaction_" + p.getUuid())
 333                     .setShortLabel(p.getName())
 334                     .setIcon(Icon.createWithResource(this, R.drawable.svg_thick_plus_white))
 335                     .setIntent(
 336                             new Intent(Intent.ACTION_VIEW, null, this, NewTransactionActivity.class)
 337                                     .putExtra("profile_uuid", p.getUuid())).setRank(i).build();
 338             shortcuts.add(si);
 339             i++;
 340         }
 341         ShortcutManager sm = getSystemService(ShortcutManager.class);
 342         sm.setDynamicShortcuts(shortcuts);
 343     }
 344     private void onProfileListChanged(List<MobileLedgerProfile> newList) {
 345         if (newList == null) {
 346             // profiles not yet loaded from DB
 347             findViewById(R.id.loading_layout).setVisibility(View.VISIBLE);
 348             findViewById(R.id.no_profiles_layout).setVisibility(View.GONE);
 349             findViewById(R.id.pager_layout).setVisibility(View.GONE);
 350             return;
 351         }
 352
 353         if (newList.isEmpty()) {
 354             findViewById(R.id.no_profiles_layout).setVisibility(View.VISIBLE);
 355             findViewById(R.id.pager_layout).setVisibility(View.GONE);
 356             findViewById(R.id.loading_layout).setVisibility(View.GONE);
 357             return;
 358         }
 359
 360         findViewById(R.id.pager_layout).setVisibility(View.VISIBLE);
 361         findViewById(R.id.no_profiles_layout).setVisibility(View.GONE);
 362         findViewById(R.id.loading_layout).setVisibility(View.GONE);
 363
 364         findViewById(R.id.nav_profile_list).setMinimumHeight(
 365                 (int) (getResources().getDimension(R.dimen.thumb_row_height) * newList.size()));
 366
 367         debug("profiles", "profile list changed");
 368         mProfileListAdapter.notifyDataSetChanged();
 369
 370         createShortcuts(newList);
 371     }
 372     /**
 373      * called when the current profile has changed
 374      */
 375     private void onProfileChanged(MobileLedgerProfile profile) {
 376         boolean haveProfile = profile != null;
 377         findViewById(R.id.no_profiles_layout).setVisibility(haveProfile ? View.GONE : View.VISIBLE);
 378         findViewById(R.id.pager_layout).setVisibility(haveProfile ? View.VISIBLE : View.VISIBLE);
 379
 380         if (haveProfile) setTitle(profile.getName());
 381         else setTitle(R.string.app_name);
 382
 383         this.profile = profile;
 384
 385         mProfileListAdapter.notifyDataSetChanged();
 386
 387         int newProfileTheme = haveProfile ? profile.getThemeId() : -1;
 388         if (newProfileTheme != Colors.profileThemeId) {
 389             debug("profiles",
 390                     String.format(Locale.ENGLISH, "profile theme %d → %d", Colors.profileThemeId,
 391                             newProfileTheme));
 392             MainActivity.this.profileThemeChanged();
 393             Colors.profileThemeId = newProfileTheme;
 394             // profileThemeChanged would restart the activity, so no need to reload the
 395             // data sets below
 396             return;
 397         }
 398         collapseProfileList();
 399
 400         drawer.closeDrawers();
 401
 402         Data.transactions.clear();
 403         debug("transactions", "requesting list reload");
 404         TransactionListViewModel.scheduleTransactionListReload();
 405
 406         Data.accounts.clear();
 407         AccountSummaryViewModel.scheduleAccountListReload();
 408
 409         if (haveProfile) {
 410             if (profile.isPostingPermitted()) {
 411                 mToolbar.setSubtitle(null);
 412                 fab.show();
 413             }
 414             else {
 415                 mToolbar.setSubtitle(R.string.profile_subitlte_read_only);
 416                 fab.hide();
 417             }
 418         }
 419         else {
 420             mToolbar.setSubtitle(null);
 421             fab.hide();
 422         }
 423
 424         updateLastUpdateTextFromDB();
 425     }
 426     private void updateLastUpdateDisplay(Date newValue) {
 427         LinearLayout l = findViewById(R.id.transactions_last_update_layout);
 428         TextView v = findViewById(R.id.transactions_last_update);
 429         if (newValue == null) {
 430             l.setVisibility(View.INVISIBLE);
 431             debug("main", "no last update date :(");
 432         }
 433         else {
 434             final String text = DateFormat.getDateTimeInstance().format(newValue);
 435             v.setText(text);
 436             l.setVisibility(View.VISIBLE);
 437             debug("main", String.format("Date formatted: %s", text));
 438         }
 439
 440         scheduleDataRetrievalIfStale(newValue);
 441     }
 442     private void profileThemeChanged() {
 443         Bundle bundle = new Bundle();
 444         onSaveInstanceState(bundle);
 445
 446         storeThemeIdInPrefs(profile.getThemeId());
 447
 448         // restart activity to reflect theme change
 449         finish();
 450
 451         // un-hook all observed LiveData
 452         Data.profile.removeObservers(this);
 453         Data.profiles.removeObservers(this);
 454         Data.lastUpdateDate.removeObservers(this);
 455         Intent intent = new Intent(this, this.getClass());
 456         intent.putExtra(BUNDLE_SAVED_STATE, bundle);
 457         startActivity(intent);
 458     }
 459     private void storeThemeIdInPrefs(int themeId) {
 460         // store the new theme id in the preferences
 461         SharedPreferences prefs = getPreferences(MODE_PRIVATE);
 462         SharedPreferences.Editor e = prefs.edit();
 463         e.putInt(PREF_THEME_ID, themeId);
 464         e.apply();
 465     }
 466     public void startEditProfileActivity(MobileLedgerProfile profile) {
 467         Intent intent = new Intent(this, ProfileDetailActivity.class);
 468         Bundle args = new Bundle();
 469         if (profile != null) {
 470             int index = Data.getProfileIndex(profile);
 471             if (index != -1) intent.putExtra(ProfileDetailFragment.ARG_ITEM_ID, index);
 472         }
 473         intent.putExtras(args);
 474         startActivity(intent, args);
 475     }
 476     private void setupProfile() {
 477         MLDB.getOption(MLDB.OPT_PROFILE_UUID, null, new GetOptCallback() {
 478             @Override
 479             protected void onResult(String profileUUID) {
 480                 MobileLedgerProfile startupProfile;
 481
 482                 startupProfile = Data.getProfile(profileUUID);
 483                 Data.setCurrentProfile(startupProfile);
 484             }
 485         });
 486     }
 487     public void fabNewTransactionClicked(View view) {
 488         Intent intent = new Intent(this, NewTransactionActivity.class);
 489         startActivity(intent);
 490         overridePendingTransition(R.anim.slide_in_right, R.anim.dummy);
 491     }
 492     public void navSettingsClicked(View view) {
 493         Intent intent = new Intent(this, SettingsActivity.class);
 494         startActivity(intent);
 495         drawer.closeDrawers();
 496     }
 497     public void markDrawerItemCurrent(int id) {
 498         TextView item = drawer.findViewById(id);
 499         item.setBackgroundColor(Colors.tableRowDarkBG);
 500
 501         LinearLayout actions = drawer.findViewById(R.id.nav_actions);
 502         for (int i = 0; i < actions.getChildCount(); i++) {
 503             View view = actions.getChildAt(i);
 504             if (view.getId() != id) {
 505                 view.setBackgroundColor(Color.TRANSPARENT);
 506             }
 507         }
 508     }
 509     public void onAccountSummaryClicked(View view) {
 510         drawer.closeDrawers();
 511
 512         showAccountSummaryFragment();
 513     }
 514     private void showAccountSummaryFragment() {
 515         mViewPager.setCurrentItem(0, true);
 516         Data.accountFilter.setValue(null);
 517     }
 518     public void onLatestTransactionsClicked(View view) {
 519         drawer.closeDrawers();
 520
 521         showTransactionsFragment((String) null);
 522     }
 523     private void showTransactionsFragment(String accName) {
 524         Data.accountFilter.setValue(accName);
 525         mViewPager.setCurrentItem(1, true);
 526     }
 527     private void showTransactionsFragment(LedgerAccount account) {
 528         showTransactionsFragment((account == null) ? null : account.getName());
 529     }
 530     public void showAccountTransactions(LedgerAccount account) {
 531         mBackMeansToAccountList = true;
 532         showTransactionsFragment(account);
 533     }
 534     @Override
 535     public void onBackPressed() {
 536         DrawerLayout drawer = findViewById(R.id.drawer_layout);
 537         if (drawer.isDrawerOpen(GravityCompat.START)) {
 538             drawer.closeDrawer(GravityCompat.START);
 539         }
 540         else {
 541             if (mBackMeansToAccountList && (mViewPager.getCurrentItem() == 1)) {
 542                 Data.accountFilter.setValue(null);
 543                 showAccountSummaryFragment();
 544                 mBackMeansToAccountList = false;
 545             }
 546             else {
 547                 debug("fragments", String.format(Locale.ENGLISH, "manager stack: %d",
 548                         fragmentManager.getBackStackEntryCount()));
 549
 550                 super.onBackPressed();
 551             }
 552         }
 553     }
 554     public void updateLastUpdateTextFromDB() {
 555         long last_update = (profile != null) ? profile.getLongOption(MLDB.OPT_LAST_SCRAPE, 0L) : 0;
 556
 557         debug("transactions", String.format(Locale.ENGLISH, "Last update = %d", last_update));
 558         if (last_update == 0) {
 559             Data.lastUpdateDate.postValue(null);
 560         }
 561         else {
 562             Data.lastUpdateDate.postValue(new Date(last_update));
 563         }
 564     }
 565     public void onStopTransactionRefreshClick(View view) {
 566         debug("interactive", "Cancelling transactions refresh");
 567         Data.stopTransactionsRetrieval();
 568         bTransactionListCancelDownload.setEnabled(false);
 569     }
 570     public void onRetrieveDone(String error) {
 571         Data.transactionRetrievalDone();
 572         progressLayout.setVisibility(View.GONE);
 573
 574         if (error == null) {
 575             updateLastUpdateTextFromDB();
 576
 577             new RefreshDescriptionsTask().executeOnExecutor(AsyncTask.THREAD_POOL_EXECUTOR);
 578             TransactionListViewModel.scheduleTransactionListReload();
 579         }
 580         else Toast.makeText(this, error, Toast.LENGTH_LONG).show();
 581     }
 582     public void onRetrieveStart() {
 583         bTransactionListCancelDownload.setEnabled(true);
 584         progressBar.setIndeterminateTintList(ColorStateList.valueOf(Colors.primary));
 585         progressBar.setProgressTintList(ColorStateList.valueOf(Colors.primary));
 586         progressBar.setIndeterminate(true);
 587         if (Build.VERSION.SDK_INT >= Build.VERSION_CODES.N) progressBar.setProgress(0, false);
 588         else progressBar.setProgress(0);
 589         progressLayout.setVisibility(View.VISIBLE);
 590     }
 591     public void onRetrieveProgress(RetrieveTransactionsTask.Progress progress) {
 592         if ((progress.getTotal() == RetrieveTransactionsTask.Progress.INDETERMINATE) ||
 593             (progress.getTotal() == 0))
 594         {
 595             progressBar.setIndeterminate(true);
 596         }
 597         else {
 598             if (Build.VERSION.SDK_INT >= Build.VERSION_CODES.O) {
 599                 progressBar.setMin(0);
 600             }
 601             progressBar.setMax(progress.getTotal());
 602             if (Build.VERSION.SDK_INT >= Build.VERSION_CODES.N) {
 603                 progressBar.setProgress(progress.getProgress(), true);
 604             }
 605             else progressBar.setProgress(progress.getProgress());
 606             progressBar.setIndeterminate(false);
 607         }
 608     }
 609     public void fabShouldShow() {
 610         if ((profile != null) && profile.isPostingPermitted()) fab.show();
 611     }
 612     public void fabHide() {
 613         fab.hide();
 614     }
 615     public void navProfilesHeadClicked(View view) {
 616         if (profileListExpanded) {
 617             collapseProfileList();
 618         }
 619         else {
 620             expandProfileList();
 621         }
 622     }
 623     private void expandProfileList() {
 624         profileListExpanded = true;
 625
 626
 627         profileListContainer.setVisibility(View.VISIBLE);
 628         profileListContainer.startAnimation(AnimationUtils.loadAnimation(this, R.anim.slide_down));
 629         profileListHeadArrow.startAnimation(AnimationUtils.loadAnimation(this, R.anim.rotate_180));
 630         profileListHeadMore.setVisibility(View.VISIBLE);
 631         profileListHeadMore.startAnimation(AnimationUtils.loadAnimation(this, R.anim.fade_in));
 632         final ArrayList<MobileLedgerProfile> profiles = Data.profiles.getValue();
 633         findViewById(R.id.nav_profile_list).setMinimumHeight(
 634                 (int) (getResources().getDimension(R.dimen.thumb_row_height) *
 635                        (profiles != null ? profiles.size() : 0)));
 636     }
 637     private void collapseProfileList() {
 638         boolean wasExpanded = profileListExpanded;
 639         profileListExpanded = false;
 640
 641         if (wasExpanded) {
 642             final Animation animation = AnimationUtils.loadAnimation(this, R.anim.slide_up);
 643             animation.setAnimationListener(new Animation.AnimationListener() {
 644                 @Override
 645                 public void onAnimationStart(Animation animation) {
 646
 647                 }
 648                 @Override
 649                 public void onAnimationEnd(Animation animation) {
 650                     profileListContainer.setVisibility(View.GONE);
 651                 }
 652                 @Override
 653                 public void onAnimationRepeat(Animation animation) {
 654
 655                 }
 656             });
 657             mProfileListAdapter.stopEditingProfiles();
 658
 659             profileListContainer.startAnimation(animation);
 660             profileListHeadArrow.setRotation(0f);
 661             profileListHeadArrow
 662                     .startAnimation(AnimationUtils.loadAnimation(this, R.anim.rotate_180_back));
 663             final Animation moreAnimation = AnimationUtils.loadAnimation(this, R.anim.fade_out);
 664             moreAnimation.setAnimationListener(new Animation.AnimationListener() {
 665                 @Override
 666                 public void onAnimationStart(Animation animation) {
 667                 }
 668                 @Override
 669                 public void onAnimationEnd(Animation animation) {
 670                     profileListHeadMore.setVisibility(View.GONE);
 671                 }
 672                 @Override
 673                 public void onAnimationRepeat(Animation animation) {
 674                 }
 675             });
 676             profileListHeadMore.startAnimation(moreAnimation);
 677         }
 678         else {
 679             profileListContainer.setVisibility(View.GONE);
 680             profileListHeadArrow.setRotation(0f);
 681             profileListHeadMore.setVisibility(View.GONE);
 682         }
 683     }
 684     public void onAccountSummaryRowViewClicked(View view) {
 685         ViewGroup row;
 686         if (view.getId() == R.id.account_expander) row = (ViewGroup) view.getParent().getParent();
 687         else row = (ViewGroup) view.getParent();
 688
 689         LedgerAccount acc = (LedgerAccount) row.getTag();
 690         switch (view.getId()) {
 691             case R.id.account_row_acc_name:
 692             case R.id.account_expander:
 693             case R.id.account_expander_container:
 694                 debug("accounts", "Account expander clicked");
 695                 if (!acc.hasSubAccounts()) return;
 696
 697                 boolean wasExpanded = acc.isExpanded();
 698
 699                 View arrow = row.findViewById(R.id.account_expander_container);
 700
 701                 arrow.clearAnimation();
 702                 ViewPropertyAnimator animator = arrow.animate();
 703
 704                 acc.toggleExpanded();
 705                 DbOpQueue.add("update accounts set expanded=? where name=? and profile=?",
 706                         new Object[]{acc.isExpanded(), acc.getName(), profile.getUuid()
 707                         });
 708
 709                 if (wasExpanded) {
 710                     debug("accounts", String.format("Collapsing account '%s'", acc.getName()));
 711                     arrow.setRotation(0);
 712                     animator.rotationBy(180);
 713
 714                     // removing all child accounts from the view
 715                     int start = -1, count = 0;
 716                     try (LockHolder ignored = Data.accounts.lockForWriting()) {
 717                         for (int i = 0; i < Data.accounts.size(); i++) {
 718                             if (acc.isParentOf(Data.accounts.get(i))) {
 719 //                                debug("accounts", String.format("Found a child '%s' at position %d",
 720 //                                        Data.accounts.get(i).getName(), i));
 721                                 if (start == -1) {
 722                                     start = i;
 723                                 }
 724                                 count++;
 725                             }
 726                             else {
 727                                 if (start != -1) {
 728 //                                    debug("accounts",
 729 //                                            String.format("Found a non-child '%s' at position %d",
 730 //                                                    Data.accounts.get(i).getName(), i));
 731                                     break;
 732                                 }
 733                             }
 734                         }
 735
 736                         if (start != -1) {
 737                             for (int j = 0; j < count; j++) {
 738 //                                debug("accounts", String.format("Removing item %d: %s", start + j,
 739 //                                        Data.accounts.get(start).getName()));
 740                                 Data.accounts.removeQuietly(start);
 741                             }
 742
 743                             mAccountSummaryFragment.modelAdapter
 744                                     .notifyItemRangeRemoved(start, count);
 745                         }
 746                     }
 747                 }
 748                 else {
 749                     debug("accounts", String.format("Expanding account '%s'", acc.getName()));
 750                     arrow.setRotation(180);
 751                     animator.rotationBy(-180);
 752                     List<LedgerAccount> children = profile.loadVisibleChildAccountsOf(acc);
 753                     try (LockHolder ignored = Data.accounts.lockForWriting()) {
 754                         int parentPos = Data.accounts.indexOf(acc);
 755                         if (parentPos != -1) {
 756                             // may have disappeared in a concurrent refresh operation
 757                             Data.accounts.addAllQuietly(parentPos + 1, children);
 758                             mAccountSummaryFragment.modelAdapter
 759                                     .notifyItemRangeInserted(parentPos + 1, children.size());
 760                         }
 761                     }
 762                 }
 763                 break;
 764             case R.id.account_row_acc_amounts:
 765                 if (acc.getAmountCount() > AccountSummaryAdapter.AMOUNT_LIMIT) {
 766                     acc.toggleAmountsExpanded();
 767                     DbOpQueue
 768                             .add("update accounts set amounts_expanded=? where name=? and profile=?",
 769                                     new Object[]{acc.amountsExpanded(), acc.getName(),
 770                                                  profile.getUuid()
 771                                     });
 772                     Data.accounts.triggerItemChangedNotification(acc);
 773                 }
 774                 break;
 775         }
 776     }
 777
 778     public class SectionsPagerAdapter extends FragmentPagerAdapter {
 779
 780         SectionsPagerAdapter(FragmentManager fm) {
 781             super(fm);
 782         }
 783
 784         @NotNull
 785         @Override
 786         public Fragment getItem(int position) {
 787             debug("main", String.format(Locale.ENGLISH, "Switching to fragment %d", position));
 788             switch (position) {
 789                 case 0:
 790 //                    debug("flow", "Creating account summary fragment");
 791                     return mAccountSummaryFragment = new AccountSummaryFragment();
 792                 case 1:
 793                     return new TransactionListFragment();
 794                 default:
 795                     throw new IllegalStateException(
 796                             String.format("Unexpected fragment index: " + "%d", position));
 797             }
 798         }
 799
 800         @Override
 801         public int getCount() {
 802             return 2;
 803         }
 804     }
 805 }