import androidx.lifecycle.Observer;
import androidx.lifecycle.ViewModel;
+import net.ktnx.mobileledger.BuildConfig;
import net.ktnx.mobileledger.dao.TemplateAccountDAO;
import net.ktnx.mobileledger.dao.TemplateHeaderDAO;
import net.ktnx.mobileledger.db.DB;
import net.ktnx.mobileledger.db.TemplateWithAccounts;
import net.ktnx.mobileledger.model.TemplateDetailsItem;
import net.ktnx.mobileledger.utils.Logger;
+import net.ktnx.mobileledger.utils.Misc;
import java.util.ArrayList;
import java.util.Collections;
import java.util.concurrent.atomic.AtomicInteger;
public class TemplateDetailsViewModel extends ViewModel {
+ static final String TAG = "template-details-model";
+ static final String DB_TAG = TAG + "-db";
private final MutableLiveData<List<TemplateDetailsItem>> items =
new MutableLiveData<>(Collections.emptyList());
+ private final AtomicInteger syntheticItemId = new AtomicInteger(0);
private Long mPatternId;
- private String mDefaultPatternName;
+ private String mDefaultTemplateName;
private boolean itemsLoaded = false;
- private final AtomicInteger syntheticItemId = new AtomicInteger(0);
-
- public String getDefaultPatternName() {
- return mDefaultPatternName;
+ public String getDefaultTemplateName() {
+ return mDefaultTemplateName;
}
- public void setDefaultPatternName(String name) {
- mDefaultPatternName = name;
+ public void setDefaultTemplateName(String name) {
+ mDefaultTemplateName = name;
}
public void resetItems() {
- checkItemConsistency(new ArrayList<>());
+ applyList(new ArrayList<>());
}
- public void checkItemConsistency(List<TemplateDetailsItem> list) {
- if (list == null)
- list = new ArrayList<>(items.getValue());
+ public void applyList(List<TemplateDetailsItem> srcList) {
+ applyList(srcList, false);
+ }
+ public void applyList(List<TemplateDetailsItem> srcList, boolean async) {
+ boolean changes;
+ if (srcList == null) {
+ srcList = new ArrayList<>(items.getValue());
+ changes = false;
+ }
+ else
+ changes = true;
- boolean changes = false;
- if (list.size() < 1) {
+ srcList = Collections.unmodifiableList(srcList);
+
+ {
+ Logger.debug(TAG, "Considering old list");
+ for (TemplateDetailsItem item : srcList)
+ Logger.debug(TAG, String.format(Locale.US, " id %d pos %d", item.getId(),
+ item.getPosition()));
+ }
+
+ ArrayList<TemplateDetailsItem> newList = new ArrayList<>();
+
+ boolean hasEmptyItem = false;
+
+ if (srcList.size() < 1) {
final TemplateDetailsItem.Header header = TemplateDetailsItem.createHeader();
- header.setName(mDefaultPatternName);
header.setId(0);
- list.add(header);
+ newList.add(header);
+ changes = true;
+ }
+ else {
+ newList.add(srcList.get(0));
+ }
+
+ for (int i = 1; i < srcList.size(); i++) {
+ final TemplateDetailsItem.AccountRow accRow = srcList.get(i)
+ .asAccountRowItem();
+ if (accRow.isEmpty()) {
+ // it is normal to have two empty rows if they are at the
+ // top (position 1 and 2)
+ if (!hasEmptyItem || i < 3) {
+ accRow.setPosition(newList.size());
+ newList.add(accRow);
+ }
+ else
+ changes = true; // row skipped
+
+ hasEmptyItem = true;
+ }
+ else {
+ accRow.setPosition(newList.size());
+ newList.add(accRow);
+ }
+ }
+
+ while (newList.size() < 3) {
+ final TemplateDetailsItem.AccountRow accountRow =
+ TemplateDetailsItem.createAccountRow();
+ accountRow.setId(genItemId());
+ accountRow.setPosition(newList.size());
+ newList.add(accountRow);
changes = true;
+ hasEmptyItem = true;
}
- while (list.size() < 3) {
+ if (!hasEmptyItem) {
final TemplateDetailsItem.AccountRow accountRow =
TemplateDetailsItem.createAccountRow();
accountRow.setId(genItemId());
- list.add(accountRow);
+ accountRow.setPosition(newList.size());
+ newList.add(accountRow);
changes = true;
}
- if (changes)
- items.setValue(list);
+ if (changes) {
+ Logger.debug(TAG, "Changes detected, applying new list");
+
+ if (async)
+ items.postValue(newList);
+ else
+ items.setValue(newList);
+ }
+ else
+ Logger.debug(TAG, "No changes, ignoring new list");
}
public int genItemId() {
return syntheticItemId.decrementAndGet();
ArrayList<TemplateDetailsItem> l = new ArrayList<>();
TemplateDetailsItem header = TemplateDetailsItem.fromRoomObject(src.header);
+ Logger.debug(DB_TAG, "Got header template item with id of " + header.getId());
l.add(header);
+ Collections.sort(src.accounts,
+ (o1, o2) -> Long.compare(o1.getPosition(), o2.getPosition()));
for (TemplateAccount acc : src.accounts) {
l.add(TemplateDetailsItem.fromRoomObject(acc));
}
for (TemplateDetailsItem i : l) {
- Logger.debug("patterns-db", "Loaded pattern item " + i);
+ Logger.debug(DB_TAG, "Loaded pattern item " + i);
}
- items.postValue(l);
+ applyList(l, true);
itemsLoaded = true;
dbList.removeObserver(this);
TemplateDetailsItem.Header modelHeader = list.get(0)
.asHeaderItem();
+
+ modelHeader.setName(Misc.trim(modelHeader.getName()));
+ if (modelHeader.getName().isEmpty())
+ modelHeader.setName(getDefaultTemplateName());
+
TemplateHeaderDAO headerDAO = DB.get()
.getTemplateDAO();
TemplateHeader dbHeader = modelHeader.toDBO();
if (newPattern) {
- dbHeader.setId(null);
+ dbHeader.setId(0L);
dbHeader.setId(mPatternId = headerDAO.insertSync(dbHeader));
}
else
dbAccount.setTemplateId(mPatternId);
dbAccount.setPosition(i);
if (dbAccount.getId() < 0) {
- dbAccount.setId(null);
+ dbAccount.setId(0);
dbAccount.setId(taDAO.insertSync(dbAccount));
}
else
}
private ArrayList<TemplateDetailsItem> copyItems() {
List<TemplateDetailsItem> oldList = items.getValue();
+
+ if (oldList == null)
+ return new ArrayList<>();
+
ArrayList<TemplateDetailsItem> result = new ArrayList<>(oldList.size());
for (TemplateDetailsItem item : oldList) {
return result;
}
public void moveItem(int sourcePos, int targetPos) {
- ArrayList<TemplateDetailsItem> newList = new ArrayList<>(items.getValue());
- TemplateDetailsItem item = newList.remove(sourcePos);
- newList.add(targetPos, item);
+ final List<TemplateDetailsItem> newList = copyItems();
+
+ if (BuildConfig.DEBUG) {
+ Logger.debug("drag", "Before move:");
+ for (int i = 1; i < newList.size(); i++) {
+ final TemplateDetailsItem item = newList.get(i);
+ Logger.debug("drag",
+ String.format(Locale.US, " %d: id %d, pos %d", i, item.getId(),
+ item.getPosition()));
+ }
+ }
+
+ {
+ TemplateDetailsItem item = newList.remove(sourcePos);
+ newList.add(targetPos, item);
+ }
+
+ // adjust affected items' positions
+ {
+ int startPos, endPos;
+ if (sourcePos < targetPos) {
+ // moved down
+ startPos = sourcePos;
+ endPos = targetPos;
+ }
+ else {
+ // moved up
+ startPos = targetPos;
+ endPos = sourcePos;
+ }
+
+ for (int i = startPos; i <= endPos; i++) {
+ newList.get(i)
+ .setPosition(i);
+ }
+ }
+
+ if (BuildConfig.DEBUG) {
+ Logger.debug("drag", "After move:");
+ for (int i = 1; i < newList.size(); i++) {
+ final TemplateDetailsItem item = newList.get(i);
+ Logger.debug("drag",
+ String.format(Locale.US, " %d: id %d, pos %d", i, item.getId(),
+ item.getPosition()));
+ }
+ }
+
items.setValue(newList);
}
public void removeItem(int position) {
- ArrayList<TemplateDetailsItem> newList = new ArrayList<>(items.getValue());
+ Logger.debug(TAG, "Removing item at position " + position);
+ ArrayList<TemplateDetailsItem> newList = copyItems();
newList.remove(position);
- checkItemConsistency(newList);
- items.setValue(newList);
+ for (int i = position; i < newList.size(); i++)
+ newList.get(i)
+ .setPosition(i);
+ applyList(newList);
}
}
\ No newline at end of file