package eu.faircode.email;
/*
This file is part of FairEmail.
FairEmail is free software: you can redistribute it and/or modify
it under the terms of the GNU General Public License as published by
the Free Software Foundation, either version 3 of the License, or
(at your option) any later version.
FairEmail is distributed in the hope that it will be useful,
but WITHOUT ANY WARRANTY; without even the implied warranty of
MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
GNU General Public License for more details.
You should have received a copy of the GNU General Public License
along with FairEmail. If not, see .
Copyright 2018-2019 by Marcel Bokhorst (M66B)
*/
import androidx.lifecycle.ViewModel;
import androidx.paging.PagedList;
public class ViewModelMessages extends ViewModel {
private PagedList messages = null;
void setMessages(PagedList messages) {
this.messages = messages;
}
@Override
protected void onCleared() {
messages = null;
}
Target[] getPrevNext(String thread) {
if (messages == null)
return new Target[]{null, null};
boolean found = false;
TupleMessageEx prev = null;
TupleMessageEx next = null;
for (int i = 0; i < messages.size(); i++) {
TupleMessageEx item = messages.get(i);
if (item == null)
continue;
if (found) {
prev = item;
messages.loadAround(i);
break;
}
if (thread.equals(item.thread))
found = true;
else
next = item;
}
return new Target[]{
prev == null ? null : new Target(prev.account, prev.thread, prev.id, prev.ui_found),
next == null ? null : new Target(next.account, next.thread, next.id, next.ui_found)};
}
class Target {
long account;
String thread;
long id;
boolean found;
Target(long account, String thread, long id, boolean found) {
this.account = account;
this.thread = thread;
this.id = id;
this.found = found;
}
}
}