108 lines
2.7 KiB
Dart
108 lines
2.7 KiB
Dart
import 'dart:async';
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import 'package:cloud_firestore/cloud_firestore.dart';
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import 'package:fcs/domain/entities/carton.dart';
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import 'package:logging/logging.dart';
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import '../../../constants.dart';
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import '../../main/model/base_model.dart';
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class CartonSelectionModel extends BaseModel {
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final log = Logger("CartonSelectionModel");
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String query = "";
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List<Carton> cartons = [];
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List<Carton> selectedCartons = [];
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bool isLoading = false;
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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, required String shipmentId}) async {
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query = term;
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cartons.clear();
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_lastDocument = null;
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ended = false;
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t?.cancel();
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t = Timer(Duration(milliseconds: imm ? 0 : 800), () async {
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await refresh(shipmentId, term: term);
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});
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}
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Future<void> refresh(String shipmentId, {String term = ""}) async {
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cartons.clear();
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_lastDocument = null;
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ended = false;
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await loadMoreData(shipmentId, term: term);
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notifyListeners();
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}
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Future<void> loadMoreData(String shipmentId, {String term = ""}) 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 = "/$cartons_collection";
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Query query = FirebaseFirestore.instance
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.collection(path)
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// .where("fcs_shipment_id", isEqualTo: shipmentId)
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// .where("status", isEqualTo: carton_processing_status)
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.where("is_deleted", isEqualTo: false);
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if (term != "") {
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query = query.where("carton_number", isEqualTo: term);
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}
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query = query.orderBy("created_at", 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<Carton> list = querySnap.docs.map((documentSnapshot) {
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var p = Carton.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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for (var p in list) {
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selectedCartons.contains(p)
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? p.isSelected = true
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: p.isSelected = false;
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}
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cartons.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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selectCarton(Carton a) {
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if (a.isSelected) {
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selectedCartons.add(a);
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} else {
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selectedCartons.remove(a);
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}
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}
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clearSelection() {
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selectedCartons.clear();
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cartons.clear();
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query = "";
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}
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addSelectedCarton(List<Carton> list) {
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selectedCartons = list;
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}
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}
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