2 * Copyright © 2021 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.
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.
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/>.
18 package net.ktnx.mobileledger.ui.templates;
20 import android.os.AsyncTask;
22 import androidx.lifecycle.LiveData;
23 import androidx.lifecycle.MutableLiveData;
24 import androidx.lifecycle.Observer;
25 import androidx.lifecycle.ViewModel;
27 import net.ktnx.mobileledger.dao.TemplateAccountDAO;
28 import net.ktnx.mobileledger.dao.TemplateHeaderDAO;
29 import net.ktnx.mobileledger.db.DB;
30 import net.ktnx.mobileledger.db.TemplateAccount;
31 import net.ktnx.mobileledger.db.TemplateHeader;
32 import net.ktnx.mobileledger.db.TemplateWithAccounts;
33 import net.ktnx.mobileledger.model.TemplateDetailsItem;
34 import net.ktnx.mobileledger.utils.Logger;
36 import java.util.ArrayList;
37 import java.util.Collections;
38 import java.util.List;
39 import java.util.Locale;
40 import java.util.Objects;
41 import java.util.concurrent.atomic.AtomicInteger;
43 public class TemplateDetailsViewModel extends ViewModel {
44 private final MutableLiveData<List<TemplateDetailsItem>> items =
45 new MutableLiveData<>(Collections.emptyList());
46 private Long mPatternId;
47 private String mDefaultPatternName;
48 private boolean itemsLoaded = false;
49 private final AtomicInteger syntheticItemId = new AtomicInteger(0);
51 public String getDefaultPatternName() {
52 return mDefaultPatternName;
54 public void setDefaultPatternName(String name) {
55 mDefaultPatternName = name;
58 public void resetItems() {
59 checkItemConsistency(new ArrayList<>());
61 public void checkItemConsistency(List<TemplateDetailsItem> list) {
63 list = new ArrayList<>(items.getValue());
65 boolean changes = false;
66 if (list.size() < 1) {
67 final TemplateDetailsItem.Header header = TemplateDetailsItem.createHeader();
68 header.setName(mDefaultPatternName);
74 while (list.size() < 3) {
75 final TemplateDetailsItem.AccountRow accountRow =
76 TemplateDetailsItem.createAccountRow();
77 accountRow.setId(genItemId());
85 public int genItemId() {
86 return syntheticItemId.decrementAndGet();
88 public LiveData<List<TemplateDetailsItem>> getItems(Long patternId) {
89 if (itemsLoaded && Objects.equals(patternId, this.mPatternId))
92 if (patternId != null && patternId <= 0)
93 throw new IllegalArgumentException("Pattern ID " + patternId + " is invalid");
95 mPatternId = patternId;
97 if (mPatternId == null) {
104 LiveData<TemplateWithAccounts> dbList = db.getTemplateDAO()
105 .getTemplateWithAccounts(mPatternId);
106 Observer<TemplateWithAccounts> observer = new Observer<TemplateWithAccounts>() {
108 public void onChanged(TemplateWithAccounts src) {
109 ArrayList<TemplateDetailsItem> l = new ArrayList<>();
111 TemplateDetailsItem header = TemplateDetailsItem.fromRoomObject(src.header);
113 for (TemplateAccount acc : src.accounts) {
114 l.add(TemplateDetailsItem.fromRoomObject(acc));
117 for (TemplateDetailsItem i : l) {
118 Logger.debug("patterns-db", "Loaded pattern item " + i);
123 dbList.removeObserver(this);
126 dbList.observeForever(observer);
130 public void setTestText(String text) {
131 List<TemplateDetailsItem> list = new ArrayList<>(items.getValue());
132 TemplateDetailsItem.Header header = new TemplateDetailsItem.Header(list.get(0)
134 header.setTestText(text);
137 items.setValue(list);
139 public void onSaveTemplate() {
140 Logger.debug("flow", "PatternDetailsViewModel.onSavePattern(); model=" + this);
141 final List<TemplateDetailsItem> list = Objects.requireNonNull(items.getValue());
143 AsyncTask.execute(() -> {
144 boolean newPattern = mPatternId == null || mPatternId <= 0;
146 TemplateDetailsItem.Header modelHeader = list.get(0)
148 TemplateHeaderDAO headerDAO = DB.get()
150 TemplateHeader dbHeader = modelHeader.toDBO();
152 dbHeader.setId(null);
153 dbHeader.setId(mPatternId = headerDAO.insertSync(dbHeader));
156 headerDAO.updateSync(dbHeader);
158 Logger.debug("pattern-db",
159 String.format(Locale.US, "Stored pattern header %d, item=%s", dbHeader.getId(),
163 TemplateAccountDAO taDAO = DB.get()
164 .getTemplateAccountDAO();
165 taDAO.prepareForSave(mPatternId);
166 for (int i = 1; i < list.size(); i++) {
167 final TemplateDetailsItem.AccountRow accRowItem = list.get(i)
169 TemplateAccount dbAccount = accRowItem.toDBO(dbHeader.getId());
170 dbAccount.setTemplateId(mPatternId);
171 dbAccount.setPosition(i);
172 if (dbAccount.getId() < 0) {
173 dbAccount.setId(null);
174 dbAccount.setId(taDAO.insertSync(dbAccount));
177 taDAO.updateSync(dbAccount);
179 Logger.debug("pattern-db", String.format(Locale.US,
180 "Stored pattern account %d, account=%s, comment=%s, neg=%s, item=%s",
181 dbAccount.getId(), dbAccount.getAccountName(),
182 dbAccount.getAccountComment(), dbAccount.getNegateAmount(), accRowItem));
184 taDAO.finishSave(mPatternId);
187 public void moveItem(int sourcePos, int targetPos) {
188 ArrayList<TemplateDetailsItem> newList = new ArrayList<>(items.getValue());
189 TemplateDetailsItem item = newList.remove(sourcePos);
190 newList.add(targetPos, item);
191 items.setValue(newList);
193 public void removeItem(int position) {
194 ArrayList<TemplateDetailsItem> newList = new ArrayList<>(items.getValue());
195 newList.remove(position);
196 checkItemConsistency(newList);
197 items.setValue(newList);