Files
fcs/lib/pages/package/model/package_model.dart

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Dart

import 'dart:async';
import 'dart:io';
import 'package:cloud_firestore/cloud_firestore.dart';
import 'package:fcs/data/services/services.dart';
import 'package:fcs/domain/constants.dart';
import 'package:fcs/domain/entities/package.dart';
import 'package:fcs/domain/entities/user.dart';
import 'package:fcs/domain/vo/delivery_address.dart';
import 'package:fcs/helpers/firebase_helper.dart';
import 'package:fcs/pages/main/model/base_model.dart';
import 'package:fcs/pagination/paginator_listener.dart';
import 'package:logging/logging.dart';
import 'package:path/path.dart' as Path;
class PackageModel extends BaseModel {
final log = Logger('PackageModel');
PaginatorListener packages;
PaginatorListener customerPackages;
PaginatorListener activePackages;
bool isLoading = false;
int _menuSelectedIndex = 1;
set menuSelectedIndex(int index) {
_menuSelectedIndex = index;
_loadPackages(_menuSelectedIndex == 2);
_loadCustomerPackages(_menuSelectedIndex == 2);
notifyListeners();
}
get menuSelectedIndex => _menuSelectedIndex;
void privilegeChanged() {
if (user != null) {
_initData();
}
}
Future<void> _initData() async {
logout();
_menuSelectedIndex = 1;
packages = PaginatorListener<Package>(
(data, id) => Package.fromMap(data, id), onChange: () {
notifyListeners();
}, rowPerLoad: 30, insertNewByListener: true);
customerPackages = PaginatorListener<Package>(
(data, id) => Package.fromMap(data, id), onChange: () {
notifyListeners();
}, rowPerLoad: 30, insertNewByListener: true);
activePackages = PaginatorListener<Package>(
(data, id) => Package.fromMap(data, id), onChange: () {
notifyListeners();
}, rowPerLoad: 30, insertNewByListener: true);
_loadPackages(_menuSelectedIndex == 2);
_loadCustomerPackages(_menuSelectedIndex == 2);
_loadActivePackages();
}
@override
logout() async {
if (customerPackages != null) customerPackages.close();
if (packages != null) packages.close();
if (activePackages != null) activePackages.close();
}
Future<void> _loadPackages(bool isDelivered) async {
if (user == null) return;
if (!((user.hasPackages() || user.hasReceiving() || user.hasProcessing())))
return;
String path = "/$packages_collection";
try {
Query listenerQuery = Firestore.instance
.collection(path)
.where("is_delivered", isEqualTo: isDelivered);
Query pageQuery = Firestore.instance
.collection(path)
.where("is_delivered", isEqualTo: isDelivered);
pageQuery = pageQuery.orderBy("update_time", descending: true);
packages.refresh(listeningQuery: listenerQuery, pageQuery: pageQuery);
} catch (e) {
log.warning("Error!! $e");
}
}
Future<void> _loadCustomerPackages(bool isDelivered) async {
if (user == null) return;
String path = "/$packages_collection";
try {
Query listenerQuery = Firestore.instance
.collection(path)
.where("is_delivered", isEqualTo: isDelivered)
.where("user_id", isEqualTo: user.id);
Query pageQuery = Firestore.instance
.collection(path)
.where("is_delivered", isEqualTo: isDelivered)
.where("user_id", isEqualTo: user.id)
.orderBy("update_time", descending: true);
customerPackages.refresh(
listeningQuery: listenerQuery, pageQuery: pageQuery);
} catch (e) {
log.warning("Error!! $e");
}
}
Future<void> _loadActivePackages() async {
if (user == null) return;
if (!((user.hasPackages() || user.hasReceiving() || user.hasProcessing())))
return;
String path = "/$packages_collection";
try {
Query listenerQuery = Firestore.instance
.collection(path)
.where("is_delivered", isEqualTo: false);
Query pageQuery = Firestore.instance
.collection(path)
.where("is_delivered", isEqualTo: false);
pageQuery = pageQuery.orderBy("update_time", descending: true);
activePackages.refresh(
listeningQuery: listenerQuery, pageQuery: pageQuery);
} catch (e) {
log.warning("Error!! $e");
}
}
Future<Package> getPackage(String id) async {
if (user == null) return null;
String path = "/$packages_collection";
try {
DocumentSnapshot snap =
await Firestore.instance.collection("$path").document(id).get();
if (snap.exists) {
var package = Package.fromMap(snap.data, snap.documentID);
return package;
}
} catch (e) {
log.warning("Error!! $e");
}
return null;
}
Future<Package> getPackageByTrackingID(String trackingID) async {
if (user == null) return null;
String path = "/$packages_collection";
try {
var snaps = await Firestore.instance
.collection("$path")
.where("tracking_id", isEqualTo: trackingID)
.where("is_deleted", isEqualTo: false)
.getDocuments(source: Source.server);
if (snaps.documents.length == 1) {
var snap = snaps.documents[0];
var package = Package.fromMap(snap.data, snap.documentID);
return package;
}
} catch (e) {
log.warning("Error!! $e");
}
return null;
}
Future<Package> lookupPackage(String trackingID) async {
if (user == null) return null;
String path = "/$packages_collection";
try {
var qsnap = await Firestore.instance
.collection("$path")
.where("tracking_id", isEqualTo: trackingID)
.where("has_user_id", isEqualTo: false)
.where("is_deleted", isEqualTo: false)
.getDocuments(source: Source.server);
if (qsnap.documents.length > 0) {
var snap = qsnap.documents[0];
if (snap.exists) {
var package = Package.fromMap(snap.data, snap.documentID);
return package;
}
}
qsnap = await Firestore.instance
.collection("$path")
.where("tracking_id", isEqualTo: trackingID)
.where("user_id", isEqualTo: user.id)
.where("is_deleted", isEqualTo: false)
.getDocuments(source: Source.server);
if (qsnap.documents.length > 0) {
var snap = qsnap.documents[0];
if (snap.exists) {
var package = Package.fromMap(snap.data, snap.documentID);
return package;
}
}
} catch (e) {
log.warning("Error!! $e");
}
return null;
}
Future<List<Package>> getPackages(String userID, List<String> status) async {
List<Package> packages = [];
try {
var snaps = await Firestore.instance
.collection("/$packages_collection")
.where("status", whereIn: status)
.where("user_id", isEqualTo: userID)
.where("is_deleted", isEqualTo: false)
.getDocuments(source: Source.server);
packages = snaps.documents.map((documentSnapshot) {
var p =
Package.fromMap(documentSnapshot.data, documentSnapshot.documentID);
return p;
}).toList();
} catch (e) {
log.warning("Error!! $e");
}
return packages;
}
Future<List<User>> searchUser(String term) {
return Services.instance.userService.searchUser(term);
}
Future<List<Package>> searchPackage(String term) async {
List<Package> packages =
await Services.instance.packageService.searchPackage(term);
Package pkg = await getPackageByTrackingID(term);
if (pkg != null && !packages.contains(pkg)) {
packages.insert(0, pkg);
}
return packages;
}
Future<void> createPackages(User user, List<Package> packages) {
return Services.instance.packageService
.createPackages(packages, user.fcsID);
}
Future<void> createReceiving(
User user, Package package, List<File> files) async {
if (user != null) {
package.fcsID = user.fcsID;
}
if (files != null) {
if (files.length > uploadPhotoLimit)
throw Exception("Exceed number of file upload");
package.photoUrls = package.photoUrls == null ? [] : package.photoUrls;
String path = Path.join(pkg_files_path);
List<String> urls = await uploadFiles(path, files);
urls.forEach((url) {
package.photoUrls.add(url);
});
}
return Services.instance.packageService.createReceiving(package);
}
Future<void> updateReceiving(User user, Package package, List<File> files,
List<String> deletedUrls) async {
if (user != null) {
package.fcsID = user.fcsID;
}
if (deletedUrls != null) {
for (String url in deletedUrls) {
package.photoUrls.remove(url);
}
await deleteStorageFromUrls(deletedUrls);
}
if (files != null) {
var count = (package.photoUrls?.length ?? 0) +
files.length -
(deletedUrls?.length ?? 0);
if (count > uploadPhotoLimit)
throw Exception("Exceed number of file upload");
package.photoUrls = package.photoUrls == null ? [] : package.photoUrls;
String path = Path.join(pkg_files_path);
List<String> urls = await uploadFiles(path, files);
urls.forEach((url) {
package.photoUrls.add(url);
});
}
await Services.instance.packageService.updateReceiving(package);
}
Future<void> deleteReceiving(Package package) {
return Services.instance.packageService.deleteReceiving(package);
}
Future<void> updateProcessing(
Package package, List<File> files, List<String> deletedUrls) async {
if (deletedUrls != null) {
for (String url in deletedUrls) {
package.photoUrls.remove(url);
}
await deleteStorageFromUrls(deletedUrls);
}
if (files != null) {
var count = (package.photoUrls?.length ?? 0) +
files.length -
(deletedUrls?.length ?? 0);
if (count > uploadPhotoLimit)
throw Exception("Exceed number of file upload");
package.photoUrls = package.photoUrls == null ? [] : package.photoUrls;
String path = Path.join(pkg_files_path);
List<String> urls = await uploadFiles(path, files);
urls.forEach((url) {
package.photoUrls.add(url);
});
package.photoUrls.removeWhere((e) => deletedUrls.contains(e));
}
await Services.instance.packageService.updateProcessing(package);
}
Future<void> deleteProcessing(Package package) {
return Services.instance.packageService.deleteProcessing(package);
}
Future<void> changeDeliveryAddress(
Package package, DeliveryAddress deliveryAddress) {
return Services.instance.packageService
.changeDeliveryAddress(package.id, deliveryAddress.id);
}
Future<void> packageReturn(Package package) {
return Services.instance.packageService.packageReturn(package.id);
}
}