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on-demand loading of transaction details
[mobile-ledger.git] / app / src / main / java / net / ktnx / mobileledger / AccountSummary.java
1 /*
2  * Copyright © 2018 Damyan Ivanov.
3  * This file is part of Mobile-Ledger.
4  * Mobile-Ledger 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  * Mobile-Ledger 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 Mobile-Ledger. If not, see <https://www.gnu.org/licenses/>.
16  */
17
18 package net.ktnx.mobileledger;
19
20 import android.arch.lifecycle.ViewModelProviders;
21 import android.content.Intent;
22 import android.content.SharedPreferences;
23 import android.content.pm.PackageInfo;
24 import android.os.Build;
25 import android.os.Bundle;
26 import android.preference.PreferenceManager;
27 import android.support.annotation.NonNull;
28 import android.support.design.widget.FloatingActionButton;
29 import android.support.design.widget.Snackbar;
30 import android.support.v4.view.GravityCompat;
31 import android.support.v4.widget.DrawerLayout;
32 import android.support.v4.widget.SwipeRefreshLayout;
33 import android.support.v7.app.ActionBarDrawerToggle;
34 import android.support.v7.app.AppCompatActivity;
35 import android.support.v7.widget.LinearLayoutManager;
36 import android.support.v7.widget.RecyclerView;
37 import android.support.v7.widget.Toolbar;
38 import android.util.Log;
39 import android.view.Menu;
40 import android.view.MenuItem;
41 import android.view.View;
42 import android.widget.LinearLayout;
43
44 import net.ktnx.mobileledger.async.RetrieveAccountsTask;
45 import net.ktnx.mobileledger.model.LedgerAccount;
46 import net.ktnx.mobileledger.utils.MobileLedgerDatabase;
47
48 import java.lang.ref.WeakReference;
49 import java.util.Date;
50 import java.util.List;
51
52 import static net.ktnx.mobileledger.SettingsActivity.PREF_KEY_SHOW_ONLY_STARRED_ACCOUNTS;
53
54 public class AccountSummary extends AppCompatActivity {
55     DrawerLayout drawer;
56
57     private static long account_list_last_updated;
58     private static boolean account_list_needs_update = true;
59     MenuItem mShowHiddenAccounts;
60     SharedPreferences.OnSharedPreferenceChangeListener sBindPreferenceSummaryToValueListener;
61     private MobileLedgerDatabase dbh;
62     private AccountSummaryViewModel model;
63     private AccountSummaryAdapter modelAdapter;
64     private Menu optMenu;
65
66     public static void preferences_changed() {
67         account_list_needs_update = true;
68     }
69
70     @Override
71     protected void onCreate(Bundle savedInstanceState) {
72         super.onCreate(savedInstanceState);
73         setContentView(R.layout.activity_account_summary);
74         Toolbar toolbar = findViewById(R.id.toolbar);
75         setSupportActionBar(toolbar);
76
77         dbh = new MobileLedgerDatabase(this);
78
79         drawer = findViewById(R.id.drawer_layout);
80         ActionBarDrawerToggle toggle = new ActionBarDrawerToggle(
81                 this, drawer, toolbar, R.string.navigation_drawer_open, R.string.navigation_drawer_close);
82         drawer.addDrawerListener(toggle);
83         toggle.syncState();
84
85         android.widget.TextView ver = drawer.findViewById(R.id.drawer_version_text);
86
87         try {
88             PackageInfo pi = getApplicationContext().getPackageManager().getPackageInfo(getPackageName(), 0);
89             ver.setText(pi.versionName);
90         } catch (Exception e) {
91             e.printStackTrace();
92         }
93
94         model = ViewModelProviders.of(this).get(AccountSummaryViewModel.class);
95         List<LedgerAccount> accounts = model.getAccounts();
96         modelAdapter = new AccountSummaryAdapter(accounts);
97
98         RecyclerView root = findViewById(R.id.account_root);
99         root.setAdapter(modelAdapter);
100
101         LinearLayoutManager llm = new LinearLayoutManager(this);
102         llm.setOrientation(LinearLayoutManager.VERTICAL);
103         root.setLayoutManager(llm);
104
105         root.addOnItemTouchListener(new RecyclerItemListener(this, root, new RecyclerItemListener.RecyclerTouchListener() {
106             @Override
107             public void onClickItem(View v, int position) {
108                 Log.d("list", String.format("item %d clicked", position));
109                 if (modelAdapter.isSelectionActive()) {
110                     modelAdapter.selectItem(position);
111                 }
112             }
113
114             @Override
115             public void onLongClickItem(View v, int position) {
116                 Log.d("list", String.format("item %d long-clicked", position));
117                 modelAdapter.startSelection();
118                 if (optMenu != null) {
119                     optMenu.findItem(R.id.menu_acc_summary_cancel_selection).setVisible(true);
120                     optMenu.findItem(R.id.menu_acc_summary_confirm_selection).setVisible(true);
121                     optMenu.findItem(R.id.menu_acc_summary_only_starred).setVisible(false);
122                 }
123                 {
124                     FloatingActionButton fab = (FloatingActionButton) findViewById(R.id.btn_add_transaction);
125                     if (fab != null) fab.hide();
126                 }
127             }
128         }));
129
130         root.addOnScrollListener(new RecyclerView.OnScrollListener() {
131             @Override
132             public void onScrolled(@NonNull RecyclerView recyclerView, int dx, int dy) {
133                 if (dy < 0) ((FloatingActionButton) findViewById(R.id.btn_add_transaction)).show();
134                 if (dy > 0) ((FloatingActionButton) findViewById(R.id.btn_add_transaction)).hide();
135             }
136         });
137         ((SwipeRefreshLayout) findViewById(R.id.account_swiper)).setOnRefreshListener(() -> {
138             Log.d("ui", "refreshing accounts via swipe");
139             update_accounts(true);
140         });
141         prepare_db();
142 //        update_account_table();
143         update_accounts(false);
144     }
145
146     @Override
147     protected void onStart() {
148         super.onStart();
149         LinearLayout grp = drawer.findViewById(R.id.nav_actions);
150         for (int i = 0; i < grp.getChildCount(); i++) {
151             if (Build.VERSION.SDK_INT >= Build.VERSION_CODES.M) {
152                 grp.getChildAt(i).setBackgroundColor(
153                         getResources().getColor(R.color.drawer_background, getTheme()));
154             }
155             else {
156                 grp.getChildAt(i)
157                         .setBackgroundColor(getResources().getColor(R.color.drawer_background));
158             }
159         }
160         if (Build.VERSION.SDK_INT >= Build.VERSION_CODES.M) {
161             drawer.findViewById(R.id.nav_account_summary).setBackgroundColor(
162                     getResources().getColor(R.color.table_row_even_bg, getTheme()));
163         }
164         else {
165             drawer.findViewById(R.id.nav_account_summary)
166                     .setBackgroundColor(getResources().getColor(R.color.table_row_even_bg));
167         }
168     }
169
170     public void fab_new_transaction_clicked(View view) {
171         Intent intent = new Intent(this, NewTransactionActivity.class);
172         startActivity(intent);
173         overridePendingTransition(R.anim.slide_in_right, R.anim.dummy);
174     }
175
176     public void nav_exit_clicked(View view) {
177         Log.w("app", "exiting");
178         finish();
179     }
180
181     public void nav_settings_clicked(View view) {
182         Intent intent = new Intent(this, SettingsActivity.class);
183         startActivity(intent);
184     }
185     public void onLatestTransactionsClicked(View view) {
186         Intent intent = new Intent(this, TransactionListActivity.class);
187         startActivity(intent);
188     }
189     @Override
190     public void onBackPressed() {
191         DrawerLayout drawer = findViewById(R.id.drawer_layout);
192         if (drawer.isDrawerOpen(GravityCompat.START)) {
193             drawer.closeDrawer(GravityCompat.START);
194         } else {
195             super.onBackPressed();
196         }
197     }
198
199     @Override
200     public boolean onCreateOptionsMenu(Menu menu) {
201         // Inflate the menu; this adds items to the action bar if it is present.
202         getMenuInflater().inflate(R.menu.account_summary, menu);
203         optMenu = menu;
204
205         mShowHiddenAccounts = menu.findItem(R.id.menu_acc_summary_only_starred);
206         if (mShowHiddenAccounts == null) throw new AssertionError();
207
208         sBindPreferenceSummaryToValueListener = (preference, value) -> mShowHiddenAccounts
209                 .setChecked(preference.getBoolean(PREF_KEY_SHOW_ONLY_STARRED_ACCOUNTS, false));
210         SharedPreferences pref = PreferenceManager.getDefaultSharedPreferences(this);
211         pref.registerOnSharedPreferenceChangeListener(sBindPreferenceSummaryToValueListener);
212
213         mShowHiddenAccounts.setChecked(pref.getBoolean(PREF_KEY_SHOW_ONLY_STARRED_ACCOUNTS, false));
214
215         return true;
216     }
217
218     @Override
219     public boolean onOptionsItemSelected(MenuItem item) {
220         // Handle action bar item clicks here. The action bar will
221         // automatically handle clicks on the Home/Up button, so long
222         // as you specify a parent activity in AndroidManifest.xml.
223 //        int id = item.getItemId();
224
225         //noinspection SimplifiableIfStatement
226         //if (id == R.id.action_settings) {
227         //    return true;
228         // }
229
230         return super.onOptionsItemSelected(item);
231     }
232
233     public void onRefreshAccountSummaryClicked(MenuItem mi) {
234         update_accounts(true);
235     }
236
237     public
238     void onShowOnlyStarredClicked(MenuItem mi) {
239         SharedPreferences pref = PreferenceManager.getDefaultSharedPreferences(this);
240         boolean flag = pref.getBoolean(PREF_KEY_SHOW_ONLY_STARRED_ACCOUNTS, false);
241
242         SharedPreferences.Editor editor = pref.edit();
243         editor.putBoolean(PREF_KEY_SHOW_ONLY_STARRED_ACCOUNTS, !flag);
244         Log.d("pref", "Setting show only starred accounts pref to " + (flag ? "false" : "true"));
245         editor.apply();
246
247         update_account_table();
248     }
249
250     private void prepare_db() {
251         account_list_last_updated = dbh.get_option_value("last_refresh", (long) 0);
252     }
253
254     private void update_accounts(boolean force) {
255         long now = new Date().getTime();
256         if ((now > (account_list_last_updated + (24 * 3600*1000))) || force) {
257             Log.d("db", "accounts last updated at " + account_list_last_updated+" and now is " + now+". re-fetching");
258             update_accounts();
259         }
260     }
261
262     private void update_accounts() {
263         RetrieveAccountsTask task = new RetrieveAccountsTask(new WeakReference<>(this));
264
265         task.setPref(PreferenceManager.getDefaultSharedPreferences(this));
266         task.execute();
267
268     }
269     public void onAccountRefreshDone(int error) {
270         SwipeRefreshLayout srl = findViewById(R.id.account_swiper);
271         srl.setRefreshing(false);
272         if (error != 0) {
273             String err_text = getResources().getString(error);
274             Log.d("visual", String.format("showing snackbar: %s", err_text));
275             Snackbar.make(drawer, err_text, Snackbar.LENGTH_LONG ).show();
276         }
277         else {
278             dbh.set_option_value("last_refresh", new Date().getTime() );
279             update_account_table();
280         }
281     }
282     private void update_account_table() {
283         model.reloadAccounts();
284         modelAdapter.notifyDataSetChanged();
285     }
286     void stopSelection() {
287         modelAdapter.stopSelection();
288         if (optMenu != null) {
289             optMenu.findItem(R.id.menu_acc_summary_cancel_selection).setVisible(false);
290             optMenu.findItem(R.id.menu_acc_summary_confirm_selection).setVisible(false);
291             optMenu.findItem(R.id.menu_acc_summary_only_starred).setVisible(true);
292         }
293         {
294             FloatingActionButton fab = findViewById(R.id.btn_add_transaction);
295             if (fab != null) fab.show();
296         }
297     }
298     public void onCancelAccSelection(MenuItem item) {
299         stopSelection();
300     }
301     public void onConfirmAccSelection(MenuItem item) {
302         model.commitSelections();
303         stopSelection();
304     }
305 }