commit eb55d1055b34b9cdc1984534623bc63f07b3e070 · bretton.dev/coves-mobile

+11

lib/main.dart

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       import 'screens/home/main_shell_screen.dart';

     

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       import 'screens/home/post_detail_screen.dart';

     

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       import 'screens/landing_screen.dart';

     

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       import 'services/comment_service.dart';

     

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       import 'services/streamable_service.dart';

     

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       import 'services/vote_service.dart';

     

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       import 'widgets/loading_error_states.dart';

     
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           signOutHandler: authProvider.signOut,

     

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         );

     

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         // Initialize comment service with auth callbacks

     

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         // Comments go through the Coves backend (which proxies to PDS with DPoP)

     

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         final commentService = CommentService(

     

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           sessionGetter: () async => authProvider.session,

     

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           tokenRefresher: authProvider.refreshToken,

     

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           signOutHandler: authProvider.signOut,

     

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         );

     

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         runApp(

     

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           MultiProvider(

     

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             providers: [

     
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                     (context) => CommentsProvider(

     

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                       authProvider,

     

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                       voteProvider: context.read<VoteProvider>(),

     

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                       commentService: commentService,

     

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                     ),

     

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                 update: (context, auth, vote, previous) {

     

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                   // Reuse existing provider to maintain state across rebuilds

     
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                       CommentsProvider(

     

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                         auth,

     

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                         voteProvider: vote,

     

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                         commentService: commentService,

     

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                       );

     

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                 },

     

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               ),

+128 -11

lib/providers/comments_provider.dart

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       import 'dart:async' show Timer, unawaited;

     

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       import 'package:characters/characters.dart';

     

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       import 'package:flutter/foundation.dart';

     

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       import '../models/comment.dart';

     

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       import '../services/api_exceptions.dart';

     

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       import '../services/comment_service.dart';

     

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       import '../services/coves_api_service.dart';

     

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       import 'auth_provider.dart';

     

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       import 'vote_provider.dart';

     
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           this._authProvider, {

     

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           CovesApiService? apiService,

     

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           VoteProvider? voteProvider,

     

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       -
         }) : _voteProvider = voteProvider {

     

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           CommentService? commentService,

     

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         }) : _voteProvider = voteProvider,

     

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              _commentService = commentService {

     

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           // Use injected service (for testing) or create new one (for production)

     

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           // Pass token getter, refresh handler, and sign out handler to API service

     

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           // for automatic fresh token retrieval and automatic token refresh on 401

     
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           _authProvider.addListener(_onAuthChanged);

     

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         }

     

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         /// Maximum comment length in characters (matches backend limit)

     

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         /// Note: This counts Unicode grapheme clusters, so emojis count correctly

     

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         static const int maxCommentLength = 10000;

     

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         /// Handle authentication state changes

     

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         ///

     

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         /// Clears comment state when user signs out to prevent privacy issues.

     
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         final AuthProvider _authProvider;

     

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         late final CovesApiService _apiService;

     

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         final VoteProvider? _voteProvider;

     

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         final CommentService? _commentService;

     

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         // Track previous auth state to detect transitions

     

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         bool _wasAuthenticated = false;

     
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         String? _cursor;

     

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         bool _hasMore = true;

     

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         // Current post URI being viewed

     

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         // Current post being viewed

     

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         String? _postUri;

     

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         String? _postCid;

     

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         // Comment configuration

     

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         String _sort = 'hot';

     
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         }

     

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         /// Load comments for a specific post

     

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         ///

     

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         /// Parameters:

     

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         /// - [postUri]: AT-URI of the post

     

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         /// - [postCid]: CID of the post (needed for creating comments)

     

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         /// - [refresh]: Whether to refresh from the beginning

     

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         Future<void> loadComments({

     

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           required String postUri,

     

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           required String postCid,

     

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           bool refresh = false,

     

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         }) async {

     

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           // If loading for a different post, reset state

     

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           if (postUri != _postUri) {

     

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             reset();

     

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             _postUri = postUri;

     

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             _postCid = postCid;

     

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           }

     

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           // If already loading, schedule a refresh to happen after current load

     
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               _pendingRefresh = false;

     

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               // Schedule refresh without awaiting to avoid blocking

     

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               // This is intentional - we want the refresh to happen asynchronously

     

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               unawaited(loadComments(postUri: _postUri!, refresh: true));

     

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               unawaited(

     

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                 loadComments(postUri: _postUri!, postCid: _postCid!, refresh: true),

     

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               );

     

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             }

     

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           }

     

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         }

     
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         ///

     

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         /// Reloads comments from the beginning for the current post.

     

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         Future<void> refreshComments() async {

     

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           if (_postUri == null) {

     

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           if (_postUri == null || _postCid == null) {

     

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             if (kDebugMode) {

     

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               debugPrint('⚠️ Cannot refresh - no post loaded');

     

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             }

     

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             return;

     

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           }

     

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           await loadComments(postUri: _postUri!, refresh: true);

     

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           await loadComments(postUri: _postUri!, postCid: _postCid!, refresh: true);

     

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         }

     

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         /// Load more comments (pagination)

     

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         Future<void> loadMoreComments() async {

     

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           if (!_hasMore || _isLoadingMore || _postUri == null) {

     

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           if (!_hasMore || _isLoadingMore || _postUri == null || _postCid == null) {

     

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             return;

     

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           }

     

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           await loadComments(postUri: _postUri!);

     

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           await loadComments(postUri: _postUri!, postCid: _postCid!);

     

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         }

     

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         /// Change sort order

     
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           notifyListeners();

     

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           // Reload comments with new sort

     

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           if (_postUri != null) {

     

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           if (_postUri != null && _postCid != null) {

     

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             try {

     

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               await loadComments(postUri: _postUri!, refresh: true);

     

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               await loadComments(

     

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                 postUri: _postUri!,

     

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                 postCid: _postCid!,

     

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                 refresh: true,

     

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               );

     

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               return true;

     

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             } on Exception catch (e) {

     

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               // Revert to previous sort option on failure

     
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           }

     

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         }

     

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         /// Create a comment on the current post or as a reply to another comment

     

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         ///

     

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         /// Parameters:

     

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         /// - [content]: The comment text content

     

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         /// - [parentComment]: Optional parent comment for nested replies.

     

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         ///   If null, this is a top-level reply to the post.

     

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         ///

     

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         /// The reply reference structure:

     

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         /// - Root: Always points to the original post (_postUri, _postCid)

     

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         /// - Parent: Points to the post (top-level) or the parent comment (nested)

     

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         ///

     

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         /// After successful creation, refreshes the comments list.

     

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         ///

     

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         /// Throws:

     

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         /// - ValidationException if content is empty or too long

     

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         /// - ApiException if CommentService is not available or no post is loaded

     

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         /// - ApiException for API errors

     

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         Future<void> createComment({

     

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           required String content,

     

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           ThreadViewComment? parentComment,

     

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         }) async {

     

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           // Validate content

     

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           final trimmedContent = content.trim();

     

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           if (trimmedContent.isEmpty) {

     

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             throw ValidationException('Comment cannot be empty');

     

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           }

     

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           // Use characters.length for proper Unicode/emoji counting

     

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           final charCount = trimmedContent.characters.length;

     

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           if (charCount > maxCommentLength) {

     

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             throw ValidationException(

     

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               'Comment too long ($charCount characters). '

     

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               'Maximum is $maxCommentLength characters.',

     

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             );

     

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           }

     

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           if (_commentService == null) {

     

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             throw ApiException('CommentService not available');

     

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           }

     

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           if (_postUri == null || _postCid == null) {

     

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             throw ApiException('No post loaded - cannot create comment');

     

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           }

     

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           // Root is always the original post

     

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           final rootUri = _postUri!;

     

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           final rootCid = _postCid!;

     

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       +
       

     

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           // Parent depends on whether this is a top-level or nested reply

     

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           final String parentUri;

     

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           final String parentCid;

     

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       +
       

     

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           if (parentComment != null) {

     

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             // Nested reply - parent is the comment being replied to

     

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             parentUri = parentComment.comment.uri;

     

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             parentCid = parentComment.comment.cid;

     

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           } else {

     

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             // Top-level reply - parent is the post

     

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             parentUri = rootUri;

     

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             parentCid = rootCid;

     

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           }

     

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           if (kDebugMode) {

     

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             debugPrint('💬 Creating comment');

     

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             debugPrint('   Root: $rootUri');

     

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             debugPrint('   Parent: $parentUri');

     

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             debugPrint('   Is nested: ${parentComment != null}');

     

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           }

     

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           try {

     

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             final response = await _commentService.createComment(

     

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               rootUri: rootUri,

     

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               rootCid: rootCid,

     

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       +
               parentUri: parentUri,

     

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               parentCid: parentCid,

     

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               content: trimmedContent,

     

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             );

     

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       +
       

     

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             if (kDebugMode) {

     

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               debugPrint('✅ Comment created: ${response.uri}');

     

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             }

     

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       +
       

     

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             // Refresh comments to show the new comment

     

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             await refreshComments();

     

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       +
           } on Exception catch (e) {

     

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       +
             if (kDebugMode) {

     

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       +
               debugPrint('❌ Failed to create comment: $e');

     

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       +
             }

     

       448
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       +
             rethrow;

     

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       +
           }

     

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       +
         }

     

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       +
       

     

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         /// Initialize vote state for a comment and its replies recursively

     

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         ///

     

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         /// Extracts viewer vote data from comment and initializes VoteProvider state.

     
···

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         /// Retry loading after error

     

       357
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         Future<void> retry() async {

     

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           _error = null;

     

       359
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       -
           if (_postUri != null) {

     

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             await loadComments(postUri: _postUri!, refresh: true);

     

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           if (_postUri != null && _postCid != null) {

     

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             await loadComments(postUri: _postUri!, postCid: _postCid!, refresh: true);

     

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           }

     

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         }

     

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···

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           _isLoading = false;

     

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           _isLoadingMore = false;

     

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           _postUri = null;

     

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           _postCid = null;

     

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           _pendingRefresh = false;

     

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           notifyListeners();

     

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         }