292 lines
8.9 KiB
Dart
292 lines
8.9 KiB
Dart
import 'dart:async';
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import 'dart:io';
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import 'package:cloud_firestore/cloud_firestore.dart';
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import 'package:fcs/data/services/services.dart';
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import 'package:fcs/domain/constants.dart';
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import 'package:fcs/domain/entities/package.dart';
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import 'package:fcs/domain/entities/user.dart';
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import 'package:fcs/domain/vo/delivery_address.dart';
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import 'package:fcs/domain/vo/message.dart';
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import 'package:fcs/helpers/firebase_helper.dart';
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import 'package:fcs/helpers/paginator.dart';
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import 'package:fcs/pages/main/model/base_model.dart';
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import 'package:logging/logging.dart';
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import 'package:path/path.dart' as Path;
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class PackageModel extends BaseModel {
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final log = Logger('PackageModel');
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StreamSubscription<QuerySnapshot> listener;
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List<Package> get packages => _menuSelectedIndex == 1
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? _packages
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: List<Package>.from(_delivered.values);
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List<Package> _packages = [];
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Paginator _delivered;
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bool isLoading = false;
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int _menuSelectedIndex = 1;
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set menuSelectedIndex(int index) {
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_menuSelectedIndex = index;
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notifyListeners();
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}
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get menuSelectedIndex => _menuSelectedIndex;
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initData(bool forCustomer) {
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logout();
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_menuSelectedIndex = 1;
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_loadPackages(forCustomer);
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_delivered = _getDeliveredExample(forCustomer);
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_delivered.load();
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}
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@override
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logout() async {
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if (_delivered != null) _delivered.close();
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if (listener != null) await listener.cancel();
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_packages = [];
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}
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Future<void> loadMore({bool isCustomer}) async {
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if (menuSelectedIndex == 1)
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return; // when delivered menu is not selected return
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if (_delivered.ended) return;
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isLoading = true;
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notifyListeners();
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await _delivered.load(onFinished: () {
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isLoading = false;
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notifyListeners();
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});
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}
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Future<void> refresh({bool isCustomer}) async {
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if (menuSelectedIndex == 1)
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return; // when delivered menu is not selected return
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await _delivered.refresh(onFinished: () {
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notifyListeners();
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});
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}
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Paginator _getDelivered(bool isCustomer) {
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if (!isCustomer) {
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if (user == null ||
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!((user.hasPackages() ||
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user.hasReceiving() ||
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user.hasProcessing()))) throw "No privilege";
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}
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var pageQuery = Firestore.instance
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.collection("/$packages_collection")
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.where("is_delivered", isEqualTo: true)
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.where("is_deleted", isEqualTo: false);
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if (isCustomer) {
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pageQuery = pageQuery.where("user_id", isEqualTo: user.id);
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}
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pageQuery = pageQuery.orderBy("current_status_date", descending: true);
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var paginator = new Paginator(pageQuery, rowPerLoad: 20, toObj: (data, id) {
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return Package.fromMap(data, id);
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});
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return paginator;
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}
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int count = 0;
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Paginator _getDeliveredExample(bool onlyFcs) {
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count = 1;
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var pageQuery = Firestore.instance
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.collection(
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"/users/8OTfsbVvsUOn1SLxy1OrKk7Y_yNKkVoGalPcIlcHnAY/messages")
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.orderBy("date", descending: true);
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var paginator = new Paginator(pageQuery, rowPerLoad: 20, toObj: (data, id) {
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var m = Message.fromMap(data, id);
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return Package(
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id: m.id,
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status: package_delivered_status,
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currentStatus: package_delivered_status,
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currentStatusDate: m.date,
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trackingID: (count++).toString(),
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market: m.message);
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});
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return paginator;
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}
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Future<void> _loadPackages(bool forCustomer) async {
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if (user == null) return;
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if (!forCustomer &&
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!((user.hasPackages() || user.hasReceiving() || user.hasProcessing())))
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return;
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String path = "/$packages_collection";
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if (listener != null) listener.cancel();
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_packages = [];
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try {
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var q = Firestore.instance
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.collection("$path")
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.where("is_delivered", isEqualTo: false)
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.where("is_deleted", isEqualTo: false);
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if (forCustomer) {
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q = q.where("user_id", isEqualTo: user.id);
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}
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listener = q.snapshots().listen((QuerySnapshot snapshot) {
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_packages.clear();
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_packages = snapshot.documents.map((documentSnapshot) {
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var package = Package.fromMap(
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documentSnapshot.data, documentSnapshot.documentID);
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return package;
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}).toList();
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notifyListeners();
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});
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} catch (e) {
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log.warning("Error!! $e");
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}
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}
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Future<Package> getPackage(String id) async {
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if (user == null) return null;
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String path = "/$packages_collection";
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try {
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DocumentSnapshot snap =
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await Firestore.instance.collection("$path").document(id).get();
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if (snap.exists) {
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var package = Package.fromMap(snap.data, snap.documentID);
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return package;
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}
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} catch (e) {
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log.warning("Error!! $e");
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}
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return null;
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}
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Future<Package> lookupPackage(String trackingID) async {
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if (user == null) return null;
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String path = "/$packages_collection";
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try {
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var qsnap = await Firestore.instance
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.collection("$path")
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.where("tracking_id", isEqualTo: trackingID)
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.where("has_user_id", isEqualTo: false)
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.where("is_deleted", isEqualTo: false)
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.getDocuments(source: Source.server);
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if (qsnap.documents.length > 0) {
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var snap = qsnap.documents[0];
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if (snap.exists) {
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var package = Package.fromMap(snap.data, snap.documentID);
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return package;
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}
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}
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qsnap = await Firestore.instance
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.collection("$path")
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.where("tracking_id", isEqualTo: trackingID)
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.where("user_id", isEqualTo: user.id)
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.where("is_deleted", isEqualTo: false)
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.getDocuments(source: Source.server);
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if (qsnap.documents.length > 0) {
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var snap = qsnap.documents[0];
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if (snap.exists) {
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var package = Package.fromMap(snap.data, snap.documentID);
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return package;
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}
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}
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} catch (e) {
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log.warning("Error!! $e");
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}
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return null;
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}
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Future<List<User>> searchUser(String term) {
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return Services.instance.userService.searchUser(term);
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}
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Future<List<Package>> searchPackage(String term) {
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return Services.instance.packageService.searchPackage(term);
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}
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Future<void> createPackages(User user, List<Package> packages) {
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return Services.instance.packageService
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.createPackages(packages, user.fcsID);
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}
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Future<void> createReceiving(
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User user, Package package, List<File> files) async {
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if (user != null) {
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package.fcsID = user.fcsID;
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}
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if (files != null) {
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if (files.length > 5) throw Exception("Exceed number of file upload");
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package.photoUrls = package.photoUrls == null ? [] : package.photoUrls;
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for (File f in files) {
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String path = Path.join(pkg_files_path);
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String url = await uploadStorage(path, f);
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package.photoUrls.add(url);
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}
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}
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return Services.instance.packageService.createReceiving(package);
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}
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Future<void> updateReceiving(User user, Package package, List<File> files,
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List<String> deletedUrls) async {
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if (user != null) {
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package.fcsID = user.fcsID;
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}
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if (deletedUrls != null) {
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for (String url in deletedUrls) {
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package.photoUrls.remove(url);
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}
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await deleteStorageFromUrls(deletedUrls);
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}
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if (files != null) {
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if (files.length > 5) throw Exception("Exceed number of file upload");
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package.photoUrls = package.photoUrls == null ? [] : package.photoUrls;
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for (File f in files) {
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String path = Path.join(pkg_files_path);
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String url = await uploadStorage(path, f);
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package.photoUrls.add(url);
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}
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}
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await Services.instance.packageService.updateReceiving(package);
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}
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Future<void> deleteReceiving(Package package) {
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return Services.instance.packageService.deleteReceiving(package);
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}
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Future<void> updateProcessing(
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Package package, List<File> files, List<String> deletedUrls) async {
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if (deletedUrls != null) {
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for (String url in deletedUrls) {
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package.photoUrls.remove(url);
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}
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await deleteStorageFromUrls(deletedUrls);
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}
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if (files != null) {
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if (files.length > 5) throw Exception("Exceed number of file upload");
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package.photoUrls = package.photoUrls == null ? [] : package.photoUrls;
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for (File f in files) {
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String path = Path.join(pkg_files_path);
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String url = await uploadStorage(path, f);
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package.photoUrls.add(url);
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}
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package.photoUrls.removeWhere((e) => deletedUrls.contains(e));
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}
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await Services.instance.packageService.updateProcessing(package);
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}
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Future<void> deleteProcessing(Package package) {
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return Services.instance.packageService.deleteProcessing(package);
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}
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Future<void> changeDeliveryAddress(
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Package package, DeliveryAddress deliveryAddress) {
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return Services.instance.packageService
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.changeDeliveryAddress(package.id, deliveryAddress.id);
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}
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}
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