Files
App/lib/screens/posts/compose.dart
2025-10-06 12:24:09 +08:00

399 lines
15 KiB
Dart

import 'package:easy_localization/easy_localization.dart';
import 'package:flutter/material.dart';
import 'package:flutter_hooks/flutter_hooks.dart';
import 'package:freezed_annotation/freezed_annotation.dart';
import 'package:gap/gap.dart';
import 'package:hooks_riverpod/hooks_riverpod.dart';
import 'package:island/models/file.dart';
import 'package:island/models/post.dart';
import 'package:island/screens/creators/publishers_form.dart';
import 'package:island/screens/posts/compose_article.dart';
import 'package:island/screens/posts/post_detail.dart';
import 'package:island/services/compose_storage_db.dart';
import 'package:island/widgets/app_scaffold.dart';
import 'package:island/widgets/content/cloud_files.dart';
import 'package:island/widgets/post/compose_attachments.dart';
import 'package:island/widgets/post/compose_form_fields.dart';
import 'package:island/widgets/post/compose_info_banner.dart';
import 'package:island/widgets/post/compose_settings_sheet.dart';
import 'package:island/widgets/post/compose_shared.dart';
import 'package:island/widgets/post/compose_toolbar.dart';
import 'package:island/widgets/post/post_item.dart';
import 'package:island/widgets/post/publishers_modal.dart';
import 'package:material_symbols_icons/symbols.dart';
import 'package:styled_widget/styled_widget.dart';
part 'compose.freezed.dart';
part 'compose.g.dart';
@freezed
sealed class PostComposeInitialState with _$PostComposeInitialState {
const factory PostComposeInitialState({
String? title,
String? description,
String? content,
@Default([]) List<UniversalFile> attachments,
int? visibility,
SnPost? replyingTo,
SnPost? forwardingTo,
}) = _PostComposeInitialState;
factory PostComposeInitialState.fromJson(Map<String, dynamic> json) =>
_$PostComposeInitialStateFromJson(json);
}
class PostEditScreen extends HookConsumerWidget {
final String id;
const PostEditScreen({super.key, required this.id});
@override
Widget build(BuildContext context, WidgetRef ref) {
final post = ref.watch(postProvider(id));
return post.when(
data: (post) => PostComposeScreen(originalPost: post),
loading:
() => AppScaffold(
isNoBackground: false,
appBar: AppBar(leading: const PageBackButton()),
body: const Center(child: CircularProgressIndicator()),
),
error:
(e, _) => AppScaffold(
isNoBackground: false,
appBar: AppBar(leading: const PageBackButton()),
body: Text('Error: $e', textAlign: TextAlign.center),
),
);
}
}
class PostComposeScreen extends HookConsumerWidget {
final SnPost? originalPost;
final int? type;
final PostComposeInitialState? initialState;
const PostComposeScreen({
super.key,
this.type,
this.initialState,
this.originalPost,
});
@override
Widget build(BuildContext context, WidgetRef ref) {
// Determine the compose type: auto-detect from edited post or use query parameter
final composeType = originalPost?.type ?? type ?? 0;
final repliedPost = initialState?.replyingTo ?? originalPost?.repliedPost;
final forwardedPost =
initialState?.forwardingTo ?? originalPost?.forwardedPost;
// If type is 1 (article), return ArticleComposeScreen
if (composeType == 1) {
return ArticleComposeScreen(originalPost: originalPost);
}
// When editing, preserve the original replied/forwarded post references
final effectiveRepliedPost = repliedPost ?? originalPost?.repliedPost;
final effectiveForwardedPost = forwardedPost ?? originalPost?.forwardedPost;
final publishers = ref.watch(publishersManagedProvider);
final state = useMemoized(
() => ComposeLogic.createState(
originalPost: originalPost,
forwardedPost: effectiveForwardedPost,
repliedPost: effectiveRepliedPost,
postType: 0, // Regular post type
),
[originalPost, effectiveForwardedPost, effectiveRepliedPost],
);
// Add a listener to the entire state to trigger rebuilds
final stateNotifier = useMemoized(
() => Listenable.merge([
state.titleController,
state.descriptionController,
state.contentController,
state.visibility,
state.attachments,
state.attachmentProgress,
state.currentPublisher,
state.submitting,
]),
[state],
);
useListenable(stateNotifier);
// Start auto-save when component mounts
useEffect(() {
if (originalPost == null) {
// Only auto-save for new posts, not edits
state.startAutoSave(ref);
}
return () => state.stopAutoSave();
}, [state]);
// Initialize publisher once when data is available
useEffect(() {
if (publishers.value?.isNotEmpty ?? false) {
if (state.currentPublisher.value == null) {
// If no publisher is set, use the first available one
state.currentPublisher.value = publishers.value!.first;
}
}
return null;
}, [publishers]);
// Load initial state if provided (for sharing functionality)
useEffect(() {
if (initialState != null) {
state.titleController.text = initialState!.title ?? '';
state.descriptionController.text = initialState!.description ?? '';
state.contentController.text = initialState!.content ?? '';
if (initialState!.visibility != null) {
state.visibility.value = initialState!.visibility!;
}
if (initialState!.attachments.isNotEmpty) {
state.attachments.value = List.from(initialState!.attachments);
}
}
return null;
}, [initialState]);
// Load draft if available (only for new posts without initial state)
useEffect(() {
if (originalPost == null &&
effectiveForwardedPost == null &&
effectiveRepliedPost == null &&
initialState == null) {
// Try to load the most recent draft
final drafts = ref.read(composeStorageNotifierProvider);
if (drafts.isNotEmpty) {
final mostRecentDraft = drafts.values.reduce(
(a, b) =>
(a.updatedAt ?? DateTime(0)).isAfter(b.updatedAt ?? DateTime(0))
? a
: b,
);
// Only load if the draft has meaningful content
if (mostRecentDraft.content?.isNotEmpty == true ||
mostRecentDraft.title?.isNotEmpty == true) {
state.titleController.text = mostRecentDraft.title ?? '';
state.descriptionController.text =
mostRecentDraft.description ?? '';
state.contentController.text = mostRecentDraft.content ?? '';
state.visibility.value = mostRecentDraft.visibility;
}
}
}
return null;
}, []);
// Dispose state when widget is disposed
useEffect(() {
return () {
state.stopAutoSave();
ComposeLogic.dispose(state);
};
}, []);
// Helper methods
void showSettingsSheet() {
showModalBottomSheet(
context: context,
isScrollControlled: true,
builder: (context) => ComposeSettingsSheet(state: state),
);
}
return PopScope(
onPopInvoked: (_) {
if (originalPost == null) {
ComposeLogic.saveDraft(ref, state);
}
},
child: AppScaffold(
isNoBackground: false,
appBar: AppBar(
leading: const PageBackButton(),
actions: [
IconButton(
icon: const Icon(Symbols.settings),
onPressed: showSettingsSheet,
tooltip: 'postSettings'.tr(),
),
IconButton(
onPressed:
state.submitting.value
? null
: () => ComposeLogic.performAction(
ref,
state,
context,
originalPost: originalPost,
repliedPost: repliedPost,
forwardedPost: forwardedPost,
),
icon:
state.submitting.value
? SizedBox(
width: 28,
height: 28,
child: const CircularProgressIndicator(
color: Colors.white,
strokeWidth: 2.5,
),
).center()
: Icon(
originalPost != null ? Symbols.edit : Symbols.upload,
),
),
const Gap(8),
],
),
body: Column(
crossAxisAlignment: CrossAxisAlignment.start,
children: [
// Reply/Forward info section
ComposeInfoBanner(
originalPost: originalPost,
replyingTo: repliedPost,
forwardingTo: forwardedPost,
onReferencePostTap: (context, post) {
showModalBottomSheet(
context: context,
isScrollControlled: true,
backgroundColor: Colors.transparent,
builder:
(context) => DraggableScrollableSheet(
initialChildSize: 0.7,
maxChildSize: 0.9,
minChildSize: 0.5,
builder:
(context, scrollController) => Container(
decoration: BoxDecoration(
color:
Theme.of(context).scaffoldBackgroundColor,
borderRadius: const BorderRadius.vertical(
top: Radius.circular(16),
),
),
child: Column(
children: [
Container(
width: 40,
height: 4,
margin: const EdgeInsets.symmetric(
vertical: 8,
),
decoration: BoxDecoration(
color:
Theme.of(context).colorScheme.outline,
borderRadius: BorderRadius.circular(2),
),
),
Expanded(
child: SingleChildScrollView(
controller: scrollController,
padding: const EdgeInsets.all(16),
child: PostItem(item: post),
),
),
],
),
),
),
);
},
),
// Main content area
Expanded(
child: ConstrainedBox(
constraints: const BoxConstraints(maxWidth: 560),
child: Row(
spacing: 12,
crossAxisAlignment: CrossAxisAlignment.start,
children: [
// Publisher profile picture
GestureDetector(
child: ProfilePictureWidget(
fileId: state.currentPublisher.value?.picture?.id,
radius: 20,
fallbackIcon:
state.currentPublisher.value == null
? Symbols.question_mark
: null,
),
onTap: () {
showModalBottomSheet(
isScrollControlled: true,
context: context,
builder: (context) => const PublisherModal(),
).then((value) {
if (value != null) {
state.currentPublisher.value = value;
}
});
},
).padding(top: 16),
// Post content form
Expanded(
child: KeyboardListener(
focusNode: FocusNode(),
onKeyEvent:
(event) => ComposeLogic.handleKeyPress(
event,
state,
ref,
context,
originalPost: originalPost,
repliedPost: repliedPost,
forwardedPost: forwardedPost,
),
child: SingleChildScrollView(
padding: const EdgeInsets.symmetric(vertical: 16),
child: Column(
crossAxisAlignment: CrossAxisAlignment.start,
children: [
ComposeFormFields(
state: state,
showPublisherAvatar: false,
onPublisherTap: () {
showModalBottomSheet(
isScrollControlled: true,
context: context,
builder:
(context) => const PublisherModal(),
).then((value) {
if (value != null) {
state.currentPublisher.value = value;
}
});
},
),
const Gap(8),
ComposeAttachments(
state: state,
isCompact: false,
),
],
),
),
),
),
],
).padding(horizontal: 16),
).alignment(Alignment.topCenter),
),
// Bottom toolbar
ComposeToolbar(state: state, originalPost: originalPost),
],
),
),
);
}
}