Merge pull request #1029 from nextcloud/doc/neon_models

docs(neon): document neon models

packages/neon/neon/lib/src/models/account.dart

@@ -22,9 +22,11 @@ abstract interface class Credentials {
   abstract final String? password;
 }
 
+/// Account data.
 @JsonSerializable()
 @immutable
 class Account implements Credentials {
+  /// Creates a new account.
   Account({
     required this.serverURL,
     required this.username,
@@ -39,8 +41,10 @@ class Account implements Credentials {
           cookieJar: CookieJar(),
         );
 
+  /// Creates a new account object from the given [json] data.
   factory Account.fromJson(final Map<String, dynamic> json) => _$AccountFromJson(json);
 
+  /// Parses this object into a json like map.
   Map<String, dynamic> toJson() => _$AccountToJson(this);
 
   @override
@@ -49,6 +53,8 @@ class Account implements Credentials {
   final String username;
   @override
   final String? password;
+
+  /// The user agent to use.
   final String? userAgent;
 
   @override
@@ -62,8 +68,13 @@ class Account implements Credentials {
   @override
   int get hashCode => serverURL.hashCode + username.hashCode;
 
+  /// An authenticated API client.
   final NextcloudClient client;
 
+  /// The unique ID of the account.
+  ///
+  /// Implemented in a primitive way hashing the [username] and [serverURL].
+  /// IDs are globally cached in [_idCache].
   String get id {
     final key = '$username@$serverURL';
 
@@ -108,10 +119,20 @@ class Account implements Credentials {
   Uri stripUri(final Uri uri) => Uri.parse(uri.toString().replaceFirst(serverURL.toString(), ''));
 }
 
+/// Global [Account.id] cache.
 Map<String, String> _idCache = {};
 
+/// Extension to find an account by id in a Iterable.
 extension AccountFind on Iterable<Account> {
+  /// Returns the first [Account] matching [accountID] by [Account.id].
+  ///
+  /// If no `Account` was found `null` is returned.
   Account? tryFind(final String? accountID) => firstWhereOrNull((final account) => account.id == accountID);
+
+  /// Returns the first [Account] matching [accountID] by [Account.id].
+  ///
+  /// Throws a [StateError] if no `Account` was found.
+  /// Use [tryFind] to get a nullable result.
   Account find(final String accountID) => firstWhere((final account) => account.id == accountID);
 }
 

packages/neon/neon/lib/src/models/account_cache.dart

@@ -3,6 +3,7 @@ import 'package:neon/src/models/disposable.dart';
 
 /// Cache for [Account] specific [Disposable] objects.
 class AccountCache<T extends Disposable> implements Disposable {
+  /// Creates a new account cache.
   AccountCache();
 
   final Map<String, T> _cache = {};

packages/neon/neon/lib/src/models/app_implementation.dart

@@ -20,18 +20,39 @@ import 'package:provider/provider.dart';
 import 'package:rxdart/rxdart.dart';
 import 'package:vector_graphics/vector_graphics.dart';
 
+/// Base implementation of a Neon app.
+///
+/// It is mandatory to provide a precompiled SVG under `assets/app.svg.vec`.
+/// SVGs can be precompiled with `https://pub.dev/packages/vector_graphics_compiler`
 @immutable
 abstract class AppImplementation<T extends Bloc, R extends NextcloudAppOptions> implements Disposable {
+  /// The unique id of an app.
+  ///
+  /// It is common to specify them in `AppIDs`.
   String get id;
+
+  /// {@macro flutter.widgets.widgetsApp.localizationsDelegates}
   LocalizationsDelegate<Object> get localizationsDelegate;
+
+  /// {@macro flutter.widgets.widgetsApp.supportedLocales}
   Iterable<Locale> get supportedLocales;
 
+  /// Default localized app name used in [name].
+  ///
+  /// Defaults to the frameworks mapping of the [id] to a localized name.
   String nameFromLocalization(final NeonLocalizations localizations) => localizations.appImplementationName(id);
+
+  /// Localized name of this app.
   String name(final BuildContext context) => nameFromLocalization(NeonLocalizations.of(context));
 
+  /// The [SettingsStorage] for this app.
   @protected
   late final AppStorage storage = AppStorage(StorageKeys.apps, id);
 
+  /// The options associated with this app.
+  ///
+  /// Options will be added to the settings page providing a global place to
+  /// adjust the behavior of an app.
   @mustBeOverridden
   R get options;
 
@@ -46,13 +67,25 @@ abstract class AppImplementation<T extends Bloc, R extends NextcloudAppOptions>
   ) =>
       null;
 
+  /// Cache for all blocs.
+  ///
+  /// To access a bloc use [getBloc] instead.
   final blocsCache = AccountCache<T>();
 
+  /// Returns a bloc [T] from the [blocsCache] or builds a new one if absent.
   T getBloc(final Account account) => blocsCache[account] ??= buildBloc(account);
 
+  /// Build the bloc [T] for the given [account].
+  ///
+  /// Blocs are long lived and should not be rebuilt for subsequent calls.
+  /// Use [getBloc] which also handles caching.
   @protected
   T buildBloc(final Account account);
 
+  /// The [Provider] building the bloc [T] the currently active account.
+  ///
+  /// Blocs will not be disposed on disposal of the provider. You must handle
+  /// the [blocsCache] manually.
   Provider<T> get blocProvider => Provider<T>(
         create: (final context) {
           final accountsBloc = NeonProvider.of<AccountsBloc>(context);
@@ -62,10 +95,17 @@ abstract class AppImplementation<T extends Bloc, R extends NextcloudAppOptions>
         },
       );
 
+  /// The count of unread notifications.
+  ///
+  /// If `null` no label will be displayed.
   BehaviorSubject<int>? getUnreadCounter(final T bloc) => null;
 
+  /// The main page of this app.
+  ///
+  /// The framework will insert [blocProvider] into the widget tree before.
   Widget get page;
 
+  /// The drawer destination used in widgets like [NavigationDrawer].
   NeonNavigationDestination destination(final BuildContext context) {
     final accountsBloc = NeonProvider.of<AccountsBloc>(context);
     final account = accountsBloc.activeAccount.value!;
@@ -106,6 +146,10 @@ abstract class AppImplementation<T extends Bloc, R extends NextcloudAppOptions>
     throw FlutterError('No name for the initial route provided.');
   }
 
+  /// Builds the app icon.
+  ///
+  /// It is mandatory to provide a precompiled SVG under `assets/app.svg.vec`.
+  /// SVGs can be precompiled with `https://pub.dev/packages/vector_graphics_compiler`
   Widget buildIcon({
     final double? size,
     final Color? color,
@@ -145,7 +189,16 @@ abstract class AppImplementation<T extends Bloc, R extends NextcloudAppOptions>
   int get hashCode => id.hashCode;
 }
 
+/// Extension to find an app implementation by id in a Iterable.
 extension AppImplementationFind on Iterable<AppImplementation> {
+  /// Returns the first [AppImplementation] matching [appID] by [AppImplementation.id].
+  ///
+  /// If no `AppImplementation` was found `null` is returned.
   AppImplementation? tryFind(final String? appID) => firstWhereOrNull((final app) => app.id == appID);
+
+  /// Returns the first [AppImplementation] matching [appID] by [AppImplementation.id].
+  ///
+  /// Throws a [StateError] if no `AppImplementation` was found.
+  /// Use [tryFind] to get a nullable result.
   AppImplementation find(final String appID) => firstWhere((final app) => app.id == appID);
 }

packages/neon/neon/lib/src/models/disposable.dart

@@ -11,6 +11,7 @@ abstract interface class Disposable {
   void dispose();
 }
 
+/// Extension on [Disposable] iterables.
 extension DisposableIterableBloc on Iterable<Disposable> {
   /// Calls [Disposable.dispose] on all entries.
   ///
@@ -22,6 +23,7 @@ extension DisposableIterableBloc on Iterable<Disposable> {
   }
 }
 
+/// Extension on [Disposable] maps.
 extension DisposableMapBloc on Map<dynamic, Disposable> {
   /// Calls [Disposable.dispose] on all entries.
   ///

packages/neon/neon/lib/src/models/label_builder.dart

@@ -1,3 +1,7 @@
 import 'package:flutter/widgets.dart';
 
+/// The signature of a function generating a label.
+///
+/// The `context` includes the [WidgetsApp]'s [Localizations] widget so that
+/// this method can be used to produce a localized label.
 typedef LabelBuilder = String Function(BuildContext);

packages/neon/neon/lib/src/models/notifications_interface.dart

@@ -3,8 +3,12 @@ import 'package:neon/src/bloc/bloc.dart';
 import 'package:neon/src/models/app_implementation.dart';
 import 'package:neon/src/settings/models/options_collection.dart';
 
+/// The interface of the notifications client implementation.
+///
+/// Use this to access the notifications client from other Neon clients.
 abstract interface class NotificationsAppInterface<T extends NotificationsBlocInterface,
     R extends NotificationsOptionsInterface> extends AppImplementation<T, R> {
+  /// Creates a new notifications client.
   NotificationsAppInterface();
 
   @override
@@ -12,13 +16,20 @@ abstract interface class NotificationsAppInterface<T extends NotificationsBlocIn
   R get options => throw UnimplementedError();
 }
 
+/// The interface of the bloc used by the notifications client.
 abstract interface class NotificationsBlocInterface extends InteractiveBloc {
+  /// Creates a new notifications bloc.
   NotificationsBlocInterface(this.options);
 
+  /// The options for the notifications client.
   final NotificationsOptionsInterface options;
+
+  /// Deletes the notification with the given [id].
   void deleteNotification(final int id);
 }
 
+/// The interface of the app options used by the notifications client.
 abstract interface class NotificationsOptionsInterface extends NextcloudAppOptions {
+  /// Creates the nextcloud app options for the notifications client.
   NotificationsOptionsInterface(super.storage);
 }