350 lines
12 KiB
Dart
350 lines
12 KiB
Dart
import 'dart:convert';
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import 'package:cloud_firestore/cloud_firestore.dart';
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import 'package:cofounderella/components/my_button.dart';
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import 'package:cofounderella/constants.dart';
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import 'package:cofounderella/models/language.dart';
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import 'package:cofounderella/models/language_setting.dart';
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import 'package:cofounderella/components/LocationSelector.dart';
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import 'package:flutter/material.dart';
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import 'package:flutter/services.dart';
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import 'package:flutter_svg/flutter_svg.dart';
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import 'package:cofounderella/services/auth/auth_service.dart';
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class UserDataPage extends StatefulWidget {
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const UserDataPage({super.key});
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@override
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State<UserDataPage> createState() => _UserDataPageState();
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}
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enum Gender { none, male, female, divers }
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class _UserDataPageState extends State<UserDataPage> {
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List<LanguageSetting> languagesList = [];
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final List<Language> _selectedLanguages = [];
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// get instance of firestore and auth
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final FirebaseFirestore _firestore = FirebaseFirestore.instance;
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final AuthService _authService = AuthService();
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int? _selectedYear;
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int? _yearFromDb;
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Gender genderView = Gender.none;
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int _genderFromDb = 0;
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List<Language> _languagesFromDb = [];
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@override
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void initState() {
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super.initState();
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// load settings from database
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_fetchSettings();
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}
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Future<void> _fetchSettings() async {
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try {
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// Fetch user ID
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String currentUserId = _authService.getCurrentUser()!.uid;
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// Fetch user document fields (email, uid, gender, ...) from database
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DocumentSnapshot userSnapshot = await _firestore
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.collection(Constants.dbCollectionUsers)
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.doc(currentUserId)
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.get();
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// Extract gender and birth year
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_genderFromDb = userSnapshot[Constants.dbFieldUsersGender];
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_yearFromDb = userSnapshot
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.data()
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.toString()
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.contains(Constants.dbFieldUsersYearBorn)
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? userSnapshot[Constants.dbFieldUsersYearBorn]
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: null;
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// Fetch languages
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QuerySnapshot languagesSnapshot = await _firestore
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.collection(Constants.dbCollectionUsers)
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.doc(currentUserId)
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.collection(Constants.dbCollectionLanguages)
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.get();
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List<Language> userLanguages = [];
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for (var doc in languagesSnapshot.docs) {
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//languages.add(Language.fromDocument(doc));
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userLanguages.add(Language(
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code: doc.id, // aka doc['code'],
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name: doc['name'],
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nativeName: doc['nativeName'],
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iconFile: doc['iconFile'],
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));
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}
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setState(() {
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genderView = Gender.values[_genderFromDb];
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_selectedYear = _yearFromDb;
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_languagesFromDb = userLanguages;
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});
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// Load data from JSON file when the widget initializes
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loadLanguagesFromJson();
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} catch (error) {
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print("Error fetching settings: $error");
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}
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}
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/// Loads the languages to display
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Future<void> loadLanguagesFromJson() async {
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// Load JSON data from assets
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String jsonData = await rootBundle.loadString(Constants.pathLanguagesJson);
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// Parse JSON into a list of objects
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List<dynamic> jsonList = await json.decode(jsonData);
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// Create LanguageSetting objects from JSON data
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languagesList = jsonList.map((item) {
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Language language = Language(
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code: item['code'],
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name: item['name'],
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nativeName: item['nativeName'],
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iconFile: item['iconFile'],
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);
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return LanguageSetting(
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language: language,
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isSelected: _languagesFromDb.any(
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(language) => language.code == item['code'],
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),
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);
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}).toList();
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// Update the UI after loading data
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setState(() {
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if (_selectedLanguages.isEmpty) {
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_selectedLanguages.addAll(_languagesFromDb);
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}
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});
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}
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void saveUserData(BuildContext context) async {
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// Get userID from auth service
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String currentUserID = _authService.getCurrentUser()!.uid;
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// Get references to the current users Firebase collections
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DocumentReference userRef =
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_firestore.collection(Constants.dbCollectionUsers).doc(currentUserID);
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CollectionReference languagesRef =
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userRef.collection(Constants.dbCollectionLanguages);
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if (_selectedYear != _yearFromDb) {
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await userRef.update(
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{'born': _selectedYear},
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);
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// update local value
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_yearFromDb = _selectedYear;
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} else {
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print("birth year did NOT change");
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}
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// Update Gender in database - only if value has changed
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if (_genderFromDb != genderView.index) {
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await userRef.update(
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{'gender': genderView.index},
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);
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// update local value
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_genderFromDb = genderView.index;
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} else {
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print("gender did NOT change");
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}
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// Save Languages - only if selected values changed
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if (_selectedLanguages.isEmpty) {
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print("no language selected");
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} else if (_languagesFromDb.length != _selectedLanguages.length ||
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_selectedLanguages
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.any((element) => !_languagesFromDb.contains(element))) {
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// Loop through each Language object and save it to the collection
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for (int i = 0; i < _selectedLanguages.length; i++) {
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// Convert Language object to a map and add the map to the collection,
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// using .doc(myID).set() instead of .add() to avoid duplicates.
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await languagesRef
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.doc(_selectedLanguages[i].code)
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.set(_selectedLanguages[i].toMap());
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}
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// update local variable (only if selection is not empty)
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_languagesFromDb.clear();
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_languagesFromDb.addAll(_selectedLanguages);
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// List to store language codes from the provided list
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List<String> languageCodes =
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_selectedLanguages.map((language) => language.code).toList();
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// Clean up languages that were not part of the provided list
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await deleteUnusedDocuments(languagesRef, languageCodes);
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} else {
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print("languages did NOT change");
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}
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}
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/// Deletes documents from collection that are not part of the provided list
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Future<void> deleteUnusedDocuments(
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CollectionReference refCollection, List<String> idsToKeep) async {
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// Fetch the existing documents from the database
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QuerySnapshot snapshot = await refCollection.get();
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// Loop through each document in the collection
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for (QueryDocumentSnapshot doc in snapshot.docs) {
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String documentId = doc.id;
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// If the language code is not in the provided list, delete the document
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if (!idsToKeep.contains(documentId)) {
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await doc.reference.delete();
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}
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}
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}
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void updateSelectedGender(Set<Gender> newSelection) {
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setState(() {
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// By default there is only a single segment that can be
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// selected at one time, so its value is always the first
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// item in the selected set.
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genderView = newSelection.first;
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});
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}
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@override
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Widget build(BuildContext context) {
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if (languagesList.isEmpty) {
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return const Center(child: CircularProgressIndicator());
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} else {
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return Scaffold(
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appBar: AppBar(
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title: const Text("User Data"),
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centerTitle: true,
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),
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body: ListView(
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children: [
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const Text(
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'Location',
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style: TextStyle(fontSize: 18, fontWeight: FontWeight.bold),
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),
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const Padding(
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padding: EdgeInsets.all(16.0),
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child: LocationSelector(),
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),
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const Text(
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'Age',
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style: TextStyle(fontSize: 18, fontWeight: FontWeight.bold),
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),
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Row(
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children: [
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const Padding(padding: EdgeInsets.symmetric(horizontal: 8)),
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Text(_selectedYear != null
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? '${DateTime.now().year - (_selectedYear ?? 0)} years old'
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: 'undefined'),
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const SizedBox(width: 20),
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DropdownMenu(
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onSelected: (int? newValue) {
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setState(() {
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_selectedYear = newValue;
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});
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},
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dropdownMenuEntries: List.generate(50, (index) {
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return DropdownMenuEntry<int>(
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value: DateTime.now().year - 16 - index,
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label: '${DateTime.now().year - 16 - index}',
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);
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}),
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label: const Text('birth year'),
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initialSelection: _yearFromDb,
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),
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],
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),
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Text(
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'Gender (${genderView.name} selected)',
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style: const TextStyle(fontSize: 18, fontWeight: FontWeight.bold),
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),
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SegmentedButton<Gender>(
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style: SegmentedButton.styleFrom(
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selectedBackgroundColor: Colors.blue,
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),
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segments: const <ButtonSegment<Gender>>[
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ButtonSegment<Gender>(
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value: Gender.none,
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label: Text('none'),
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),
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ButtonSegment<Gender>(
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value: Gender.male,
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label: Text('male'),
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//icon: Icon(Icons.male_sharp),
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),
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ButtonSegment<Gender>(
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value: Gender.female,
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label: Text('female'),
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//icon: Icon(Icons.female_sharp),
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),
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ButtonSegment<Gender>(
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value: Gender.divers,
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label: Text('divers'),
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),
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],
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selected: <Gender>{genderView},
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showSelectedIcon: false,
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onSelectionChanged: updateSelectedGender,
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),
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const Divider(),
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Text(
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'Language: (${_selectedLanguages.length} selected)',
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style: const TextStyle(fontSize: 18, fontWeight: FontWeight.bold),
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),
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...languagesList.map(buildSingleCheckbox), // ... spread operator
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const Divider(),
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Padding(
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padding: const EdgeInsets.all(8.0),
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child: MyButton(text: "Save", onTap: () => saveUserData(context)),
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)
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],
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),
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);
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}
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}
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Widget buildSingleCheckbox(LanguageSetting languageSetting) => buildCheckbox(
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languageSetting: languageSetting,
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onClicked: () {
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setState(() {
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final newValue = !languageSetting.isSelected;
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languageSetting.isSelected = newValue;
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if (languageSetting.isSelected &&
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!_selectedLanguages.contains(languageSetting.language)) {
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_selectedLanguages.add(languageSetting.language);
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} else if (languageSetting.isSelected == false) {
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_selectedLanguages.removeWhere(
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(element) => element.code == languageSetting.language.code);
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}
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});
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},
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);
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Widget buildCheckbox({
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required LanguageSetting languageSetting,
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required VoidCallback onClicked,
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}) =>
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ListTile(
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tileColor: Theme.of(context).colorScheme.secondary,
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onTap: onClicked,
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leading: SizedBox(
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width: 48,
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height: 32,
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child: SvgPicture.asset(
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languageSetting.language.iconFile,
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),
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),
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title: Text(
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languageSetting.language.nativeName,
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style: const TextStyle(fontSize: 20, fontWeight: FontWeight.bold),
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),
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subtitle: Text(languageSetting.language.name),
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trailing: Checkbox(
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value: languageSetting.isSelected,
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onChanged: (value) => onClicked(),
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),
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);
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}
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