280 lines
7.9 KiB
Dart
280 lines
7.9 KiB
Dart
import 'dart:convert';
|
|
|
|
import 'package:lemmy_api_client/lemmy_api_client.dart';
|
|
import 'package:mobx/mobx.dart';
|
|
import 'package:shared_preferences/shared_preferences.dart';
|
|
|
|
part 'accounts_store.g.dart';
|
|
|
|
/// Store that manages all accounts
|
|
class AccountsStore extends _AccountsStore with _$AccountsStore {}
|
|
|
|
abstract class _AccountsStore with Store {
|
|
ReactionDisposer _saveReactionDisposer;
|
|
ReactionDisposer _pickDefaultsDisposer;
|
|
|
|
_AccountsStore() {
|
|
// persistently save settings each time they are changed
|
|
_saveReactionDisposer = reaction(
|
|
(_) => [
|
|
tokens.forEach((k, submap) =>
|
|
MapEntry(k, submap.forEach((k2, v2) => MapEntry(k2, v2)))),
|
|
_defaultAccount,
|
|
_defaultAccounts.asObservable(),
|
|
],
|
|
(_) => save(),
|
|
);
|
|
|
|
// automatically set new default accounts when accounts are added/removed
|
|
_pickDefaultsDisposer = reaction(
|
|
(_) => [
|
|
tokens.forEach((k, submap) =>
|
|
MapEntry(k, submap.forEach((k2, v2) => MapEntry(k2, v2)))),
|
|
],
|
|
(_) => _assignDefaultAccounts(),
|
|
);
|
|
}
|
|
|
|
@action
|
|
void _assignDefaultAccounts() {
|
|
// remove dangling defaults
|
|
_defaultAccounts.entries.map((dft) {
|
|
final instance = dft.key;
|
|
final username = dft.value;
|
|
// if instance or username doesn't exist, remove
|
|
if (!instances.contains(instance) ||
|
|
!tokens[instance].containsKey(username)) {
|
|
return instance;
|
|
}
|
|
}).forEach(_defaultAccounts.remove);
|
|
if (_defaultAccount != null) {
|
|
final instance = _defaultAccount.split('@')[1];
|
|
final username = _defaultAccount.split('@')[0];
|
|
// if instance or username doesn't exist, remove
|
|
if (!instances.contains(instance) ||
|
|
!tokens[instance].containsKey(username)) {
|
|
_defaultAccount = null;
|
|
}
|
|
}
|
|
|
|
// set local defaults
|
|
for (final instanceUrl in instances) {
|
|
// if this instance is not in defaults
|
|
if (!_defaultAccounts.containsKey(instanceUrl)) {
|
|
// select first account in this instance, if any
|
|
if (!isAnonymousFor(instanceUrl)) {
|
|
setDefaultAccountFor(instanceUrl, tokens[instanceUrl].keys.first);
|
|
}
|
|
}
|
|
}
|
|
|
|
// set global default
|
|
if (_defaultAccount == null) {
|
|
// select first account of first instance
|
|
for (final instanceUrl in instances) {
|
|
// select first account in this instance, if any
|
|
if (!isAnonymousFor(instanceUrl)) {
|
|
setDefaultAccount(instanceUrl, tokens[instanceUrl].keys.first);
|
|
}
|
|
}
|
|
}
|
|
}
|
|
|
|
void dispose() {
|
|
_saveReactionDisposer();
|
|
_pickDefaultsDisposer();
|
|
}
|
|
|
|
void load() async {
|
|
final prefs = await SharedPreferences.getInstance();
|
|
|
|
// I barely understand what I did. Long story short it casts a
|
|
// raw json into a nested ObservableMap
|
|
nestedMapsCast<T>(String key, T f(Map<String, dynamic> json)) =>
|
|
ObservableMap.of(
|
|
(jsonDecode(prefs.getString(key) ?? '{}') as Map<String, dynamic>)
|
|
?.map(
|
|
(k, e) => MapEntry(
|
|
k,
|
|
ObservableMap.of(
|
|
(e as Map<String, dynamic>)?.map(
|
|
(k, e) => MapEntry(
|
|
k, e == null ? null : f(e as Map<String, dynamic>)),
|
|
),
|
|
),
|
|
),
|
|
),
|
|
);
|
|
|
|
// set saved settings or create defaults
|
|
tokens = nestedMapsCast('tokens', (json) => Jwt(json['raw']));
|
|
_defaultAccount = prefs.getString('defaultAccount');
|
|
_defaultAccounts = ObservableMap.of(Map.castFrom(
|
|
jsonDecode(prefs.getString('defaultAccounts') ?? 'null') ?? {}));
|
|
}
|
|
|
|
void save() async {
|
|
final prefs = await SharedPreferences.getInstance();
|
|
|
|
await prefs.setString('defaultAccount', _defaultAccount);
|
|
await prefs.setString('defaultAccounts', jsonEncode(_defaultAccounts));
|
|
await prefs.setString('tokens', jsonEncode(tokens));
|
|
}
|
|
|
|
/// Map containing JWT tokens of specific users.
|
|
/// If a token is in this map, the user is considered logged in
|
|
/// for that account.
|
|
/// `tokens['instanceUrl']['username']`
|
|
@observable
|
|
ObservableMap<String, ObservableMap<String, Jwt>> tokens;
|
|
|
|
/// default account for a given instance
|
|
/// map where keys are instanceUrls and values are usernames
|
|
@observable
|
|
ObservableMap<String, String> _defaultAccounts;
|
|
|
|
/// default account for the app
|
|
/// It is in a form of `username@instanceUrl`
|
|
@observable
|
|
String _defaultAccount;
|
|
|
|
@computed
|
|
String get defaultUsername {
|
|
if (_defaultAccount == null) {
|
|
return null;
|
|
}
|
|
|
|
return _defaultAccount.split('@')[0];
|
|
}
|
|
|
|
@computed
|
|
String get defaultInstanceUrl {
|
|
if (_defaultAccount == null) {
|
|
return null;
|
|
}
|
|
|
|
return _defaultAccount.split('@')[1];
|
|
}
|
|
|
|
String defaultUsernameFor(String instanceUrl) => Computed(() {
|
|
if (isAnonymousFor(instanceUrl)) {
|
|
return null;
|
|
}
|
|
|
|
return _defaultAccounts[instanceUrl];
|
|
}).value;
|
|
|
|
@computed
|
|
Jwt get defaultToken {
|
|
if (_defaultAccount == null) {
|
|
return null;
|
|
}
|
|
|
|
final userTag = _defaultAccount.split('@');
|
|
return tokens[userTag[1]][userTag[0]];
|
|
}
|
|
|
|
Jwt defaultTokenFor(String instanceUrl) => Computed(() {
|
|
if (isAnonymousFor(instanceUrl)) {
|
|
return null;
|
|
}
|
|
|
|
return tokens[instanceUrl][_defaultAccounts[instanceUrl]];
|
|
}).value;
|
|
|
|
/// sets globally default account
|
|
@action
|
|
void setDefaultAccount(String instanceUrl, String username) {
|
|
_defaultAccount = '$username@$instanceUrl';
|
|
}
|
|
|
|
/// sets default account for given instance
|
|
@action
|
|
void setDefaultAccountFor(String instanceUrl, String username) {
|
|
_defaultAccounts[instanceUrl] = username;
|
|
}
|
|
|
|
/// An instance is considered anonymous if it was not
|
|
/// added or there are no accounts assigned to it.
|
|
bool isAnonymousFor(String instanceUrl) => Computed(() {
|
|
if (!instances.contains(instanceUrl)) {
|
|
return true;
|
|
}
|
|
|
|
return tokens[instanceUrl].isEmpty;
|
|
}).value;
|
|
|
|
/// `true` if no added instance has an account assigned to it
|
|
@computed
|
|
bool get hasNoAccount => loggedInInstances.isEmpty;
|
|
|
|
@computed
|
|
Iterable<String> get instances => tokens.keys;
|
|
|
|
@computed
|
|
Iterable<String> get loggedInInstances =>
|
|
instances.where((e) => !isAnonymousFor(e));
|
|
|
|
/// adds a new account
|
|
/// if it's the first account ever the account is
|
|
/// set as default for the app
|
|
/// if it's the first account for an instance the account is
|
|
/// set as default for that instance
|
|
@action
|
|
Future<void> addAccount(
|
|
String instanceUrl,
|
|
String usernameOrEmail,
|
|
String password,
|
|
) async {
|
|
if (!instances.contains(instanceUrl)) {
|
|
throw Exception('No such instance was added');
|
|
}
|
|
|
|
final lemmy = LemmyApi(instanceUrl).v1;
|
|
|
|
final token = await lemmy.login(
|
|
usernameOrEmail: usernameOrEmail,
|
|
password: password,
|
|
);
|
|
final userData =
|
|
await lemmy.getSite(auth: token.raw).then((value) => value.myUser);
|
|
|
|
tokens[instanceUrl][userData.name] = token;
|
|
}
|
|
|
|
/// adds a new instance with no accounts associated with it.
|
|
/// Additionally makes a test `GET /site` request to check if the instance exists.
|
|
/// Check is skipped when [assumeValid] is `true`
|
|
@action
|
|
Future<void> addInstance(
|
|
String instanceUrl, {
|
|
bool assumeValid = false,
|
|
}) async {
|
|
if (instances.contains(instanceUrl)) {
|
|
throw Exception('This instance has already been added');
|
|
}
|
|
|
|
if (!assumeValid) {
|
|
try {
|
|
await LemmyApi(instanceUrl).v1.getSite();
|
|
// ignore: avoid_catches_without_on_clauses
|
|
} catch (_) {
|
|
throw Exception('This instance seems to not exist');
|
|
}
|
|
}
|
|
|
|
tokens[instanceUrl] = ObservableMap();
|
|
}
|
|
|
|
/// This also removes all accounts assigned to this instance
|
|
@action
|
|
void removeInstance(String instanceUrl) {
|
|
tokens.remove(instanceUrl);
|
|
}
|
|
|
|
@action
|
|
void removeAccount(String instanceUrl, String username) {
|
|
tokens[instanceUrl].remove(username);
|
|
}
|
|
}
|