129 lines
3.1 KiB
Dart
129 lines
3.1 KiB
Dart
import 'dart:async';
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import 'dart:convert';
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import 'package:cloud_firestore/cloud_firestore.dart';
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import 'package:logging/logging.dart';
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import '../../../config.dart';
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import '../../../constants.dart';
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import '../../../domain/entities/user.dart';
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import '../../../helpers/api_helper.dart';
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import '../../../helpers/firebase_helper.dart';
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import '../../main/model/base_model.dart';
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class SenderSelectionModel extends BaseModel {
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final log = Logger("SenderSelectionModel");
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// for search
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String query = "";
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List<User> _senders = [];
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List<User> get getSenders {
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var users = new List<User>.from(_senders);
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if (query == "") {
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return users..insert(0, User(id: all, name: "All"));
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}
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return users;
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}
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bool isLoading = false;
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// for default user
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DocumentSnapshot? _lastDocument;
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bool ended = false;
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Timer? t;
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search(String term, {bool imm = false}) async {
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query = term;
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_senders.clear();
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t?.cancel();
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t = Timer(Duration(milliseconds: imm ? 0 : 800), () async {
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await loadMoreSearch(term: term);
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});
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}
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Future<void> loadMoreSearch({required String term}) async {
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if (term == "") {
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await _refresh();
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return;
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}
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var bytes = utf8.encode(term);
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var base64Str = base64.encode(bytes);
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HtmlEscape htmlEscape = const HtmlEscape();
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String escapeSender = htmlEscape.convert(base64Str);
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int rowPerPage = 20;
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List<User> list = [];
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var result = await requestAPI(
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"/api/fts/$user_collection/$escapeSender/$rowPerPage", "GET",
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url: Config.instance.reportURL, token: await getToken());
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if (result != null) {
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for (var row in result) {
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var item = User.fromJson(row);
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list.add(item);
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}
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}
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_senders = List.from(list);
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notifyListeners();
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}
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addDefaultSenders() async {
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_senders.clear();
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await _refresh();
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}
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Future<void> _refresh() async {
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_senders.clear();
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_lastDocument = null;
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ended = false;
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await loadMoreData();
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notifyListeners();
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}
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Future<void> loadMoreData() async {
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int rowPerPage = 20;
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try {
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isLoading = true;
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String path = "/$user_collection";
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Query query = FirebaseFirestore.instance
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.collection(path)
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.where("is_sys_admin", isEqualTo: false)
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.where("delete_time", isEqualTo: 0)
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.orderBy("update_time", descending: true);
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if (_lastDocument != null) {
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query = query.startAfterDocument(_lastDocument!);
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}
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QuerySnapshot querySnap = await query.limit(rowPerPage).get();
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if (querySnap.docs.isEmpty) return;
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_lastDocument = querySnap.docs[querySnap.docs.length - 1];
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List<User> list = querySnap.docs.map((documentSnapshot) {
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var p = User.fromMap(documentSnapshot.data() as Map<String, dynamic>,
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documentSnapshot.id);
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return p;
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}).toList();
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_senders.addAll(list);
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if (list.length < rowPerPage) ended = true;
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notifyListeners();
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} catch (e) {
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log.warning("error:$e");
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} finally {
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isLoading = false;
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}
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}
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clear() {
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_senders.clear();
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query = "";
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}
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}
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