499 lines
16 KiB
Dart
499 lines
16 KiB
Dart
// Author: fruit.com.cn
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import 'dart:async';
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import 'package:flutter/material.dart';
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import 'package:provider/provider.dart';
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import '../../../core/data/models/comment.dart';
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import '../../../core/data/models/drama.dart';
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import '../../../core/data/repositories/comment_repository.dart';
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import '../../../core/data/repositories/interaction_repository.dart';
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import '../../../core/data/services/comment_controller.dart';
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import '../../../core/data/services/auth_controller.dart';
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import '../../../core/formatting/error_text.dart';
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import '../../../core/platform/haptics.dart';
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import '../../../core/theme/app_colors.dart';
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import '../../../core/widgets/auth_gate.dart';
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import '../../../core/widgets/empty_state.dart';
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import '../../../l10n/app_localizations.dart';
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import '../../interaction/widgets/report_dialog.dart';
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import 'comment_tile.dart';
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const double _minSheetHeight = 280;
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const double _maxSheetHeight = 520;
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const int _maxCommentLength = 300;
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const double _composerRadius = 12;
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const double _composerHeight = 52;
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const double _sendButtonSize = 40;
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const double _sheetRadius = 20;
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/// 服务端评论底部弹窗：匿名列表、游标翻页、回复、点赞和本人删除。
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class DramaCommentsSheet extends StatefulWidget {
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const DramaCommentsSheet({super.key, required this.drama});
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final Drama drama;
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@override
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State<DramaCommentsSheet> createState() => _DramaCommentsSheetState();
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}
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class _DramaCommentsSheetState extends State<DramaCommentsSheet> {
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final _input = TextEditingController();
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final _inputFocus = FocusNode();
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late final CommentController _controller;
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DramaComment? _replyTo;
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@override
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void initState() {
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super.initState();
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_controller = CommentController(
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comments: context.read<CommentRepository>(),
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interactions: context.read<InteractionRepository>(),
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dramaId: widget.drama.id,
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);
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unawaited(_controller.load());
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}
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@override
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void dispose() {
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_controller.dispose();
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_input.dispose();
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_inputFocus.dispose();
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super.dispose();
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}
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Future<void> _post() async {
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if (_controller.submitting) return;
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if (!await ensureSignedIn(context) || !mounted) return;
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if (_input.text.trim().isEmpty) return;
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unawaited(context.read<Haptics>().lightImpact());
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final result = await _controller.publish(_input.text, replyTo: _replyTo);
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if (!mounted) return;
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if (result.isSuccess) {
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_input.clear();
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setState(() => _replyTo = null);
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FocusScope.of(context).unfocus();
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return;
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}
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_showMessage(
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result.errorMessage ?? AppLocalizations.of(context)!.commentPostFailed,
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);
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}
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void _beginReply(DramaComment comment) {
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setState(() => _replyTo = comment);
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_inputFocus.requestFocus();
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}
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void _cancelReply() {
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if (_replyTo == null) return;
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setState(() => _replyTo = null);
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}
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Future<void> _authenticateForComment() async {
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_inputFocus.unfocus();
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await ensureSignedIn(context);
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if (!mounted || !context.read<AuthController>().isSignedIn) return;
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_inputFocus.requestFocus();
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}
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Future<void> _like(DramaComment comment) async {
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if (!await ensureSignedIn(context) || !mounted) return;
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unawaited(context.read<Haptics>().lightImpact());
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final result = await _controller.toggleLike(comment);
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if (!result.isSuccess && mounted) {
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_showMessage(
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result.errorMessage ?? AppLocalizations.of(context)!.commentPostFailed,
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);
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}
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}
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Future<void> _confirmDelete(DramaComment comment) async {
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final l10n = AppLocalizations.of(context)!;
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final confirmed = await showDialog<bool>(
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context: context,
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builder: (dialogContext) => AlertDialog(
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title: Text(l10n.deleteCommentTitle),
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content: Text(l10n.deleteCommentMessage),
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actions: [
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TextButton(
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onPressed: () => Navigator.of(dialogContext).pop(false),
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child: Text(l10n.cancel),
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),
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FilledButton(
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key: const Key('comment-delete-confirm'),
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onPressed: () => Navigator.of(dialogContext).pop(true),
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child: Text(l10n.delete),
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),
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],
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),
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);
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if (confirmed != true || !mounted) return;
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final result = await _controller.delete(comment);
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if (!result.isSuccess && mounted) {
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_showMessage(
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result.errorMessage ??
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AppLocalizations.of(context)!.commentDeleteFailed,
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);
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}
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}
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Future<void> _report(DramaComment comment) async {
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if (!await ensureSignedIn(context) || !mounted) return;
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final l10n = AppLocalizations.of(context)!;
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final draft = await showReportDialog(context, title: l10n.reportComment);
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if (draft == null || !mounted) return;
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unawaited(context.read<Haptics>().lightImpact());
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final result = await _controller.report(
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comment,
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reason: draft.reason,
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description: draft.description,
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);
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if (!mounted) return;
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_showMessage(
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result.isSuccess
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? l10n.reportSubmitted
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: result.errorMessage ?? l10n.reportFailed,
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);
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}
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void _showMessage(String message) {
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ScaffoldMessenger.of(
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context,
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).showSnackBar(SnackBar(content: Text(message)));
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}
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@override
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Widget build(BuildContext context) {
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final available =
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MediaQuery.sizeOf(context).height -
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MediaQuery.viewInsetsOf(context).bottom -
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24;
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return Padding(
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padding: EdgeInsets.only(bottom: MediaQuery.viewInsetsOf(context).bottom),
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child: Container(
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key: const Key('player-comments-sheet'),
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decoration: const BoxDecoration(
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color: AppColors.card,
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borderRadius: BorderRadius.vertical(
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top: Radius.circular(_sheetRadius),
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),
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),
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child: SizedBox(
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height: available.clamp(_minSheetHeight, _maxSheetHeight),
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child: SafeArea(
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top: false,
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child: Padding(
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padding: const EdgeInsets.fromLTRB(12, 4, 12, 12),
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child: ListenableBuilder(
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listenable: _controller,
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builder: (context, _) => _content(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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}
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Widget _content(BuildContext context) {
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final l10n = AppLocalizations.of(context)!;
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final count = _controller.exactCount;
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return Column(
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crossAxisAlignment: CrossAxisAlignment.start,
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children: [
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Center(
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child: Container(
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key: const Key('player-comments-drag-handle'),
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width: 36,
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height: 4,
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decoration: BoxDecoration(
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color: AppColors.border,
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borderRadius: BorderRadius.circular(999),
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),
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),
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),
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const SizedBox(height: 8),
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Row(
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children: [
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Expanded(
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child: Text(
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count == null ? l10n.comments : l10n.commentsWithCount(count),
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key: count == null ? null : const Key('comment-count-label'),
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style: const TextStyle(
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color: AppColors.onSurface,
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fontSize: 15,
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fontWeight: FontWeight.w700,
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),
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),
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),
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IconButton(
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key: const Key('player-comments-close'),
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tooltip: l10n.close,
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onPressed: () => Navigator.pop(context),
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visualDensity: VisualDensity.compact,
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icon: const Icon(Icons.close_rounded, size: 20),
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),
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],
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),
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Text(
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widget.drama.title,
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maxLines: 1,
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overflow: TextOverflow.ellipsis,
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style: const TextStyle(
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color: AppColors.muted,
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fontSize: 12,
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fontWeight: FontWeight.w500,
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),
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),
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const SizedBox(height: 8),
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Expanded(child: _list(l10n)),
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if (_replyTo != null) _replyBanner(l10n, _replyTo!),
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_composer(l10n),
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],
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);
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}
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Widget _list(AppLocalizations l10n) {
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if (_controller.loading && _controller.comments.isEmpty) {
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return const Center(
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child: CircularProgressIndicator(key: Key('comment-list-loading')),
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);
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}
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if (_controller.error != null && _controller.comments.isEmpty) {
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return EmptyState(
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key: const Key('comment-list-error'),
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icon: Icons.cloud_off_rounded,
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title: errorText(l10n, _controller.error, l10n.commentsLoadFailed),
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actionLabel: l10n.retry,
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actionKey: const Key('comment-list-retry'),
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onAction: _controller.load,
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compact: true,
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);
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}
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if (_controller.comments.isEmpty) {
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return EmptyState(
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key: const Key('comment-list-empty'),
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icon: Icons.chat_bubble_outline_rounded,
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title: l10n.noComments,
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compact: true,
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);
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}
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return ListView.builder(
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key: const Key('comment-list'),
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itemCount: _controller.comments.length + 1,
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itemBuilder: (context, index) {
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if (index == _controller.comments.length) return _footer(l10n);
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return _CommentThread(
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comment: _controller.comments[index],
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controller: _controller,
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handlers: CommentInteractionHandlers(
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onReply: _beginReply,
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onLike: _like,
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onDelete: _confirmDelete,
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onReport: _report,
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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 _footer(AppLocalizations l10n) {
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if (_controller.loadingMore) {
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return const Padding(
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padding: EdgeInsets.symmetric(vertical: 12),
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child: Center(child: CircularProgressIndicator()),
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);
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}
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if (_controller.hasMore) {
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return TextButton(
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key: const Key('comment-list-load-more'),
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onPressed: _controller.loadMore,
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child: Text(l10n.loadMore),
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);
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}
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return const SizedBox(height: 8);
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}
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Widget _replyBanner(AppLocalizations l10n, DramaComment replyTo) => Padding(
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padding: const EdgeInsets.only(bottom: 6),
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child: Row(
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children: [
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Expanded(
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child: Text(
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l10n.replyingTo(
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replyTo.nickname.isEmpty ? l10n.anonymousUser : replyTo.nickname,
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),
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style: const TextStyle(color: AppColors.muted, fontSize: 12),
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),
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),
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IconButton(
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key: const Key('comment-cancel-reply'),
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tooltip: l10n.cancelReply,
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onPressed: _cancelReply,
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visualDensity: VisualDensity.compact,
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icon: const Icon(Icons.close_rounded, size: 18),
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),
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],
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),
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);
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InputDecoration _composerDecoration(String hint) {
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const radius = BorderRadius.all(Radius.circular(_composerRadius));
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const clear = OutlineInputBorder(
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borderRadius: radius,
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borderSide: BorderSide.none,
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);
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return InputDecoration(
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hintText: hint,
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hintStyle: const TextStyle(color: AppColors.muted, fontSize: 14),
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counterText: '',
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filled: true,
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fillColor: AppColors.commentInput,
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contentPadding: const EdgeInsets.symmetric(horizontal: 16, vertical: 14),
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isDense: true,
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border: clear,
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enabledBorder: clear,
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focusedBorder: clear,
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);
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}
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Widget _composer(AppLocalizations l10n) {
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final signedIn = context.watch<AuthController>().isSignedIn;
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return Row(
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children: [
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Expanded(
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child: SizedBox(
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height: _composerHeight,
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child: TextField(
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key: const Key('comment-input'),
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controller: _input,
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focusNode: _inputFocus,
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readOnly: !signedIn,
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canRequestFocus: signedIn,
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maxLength: _maxCommentLength,
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maxLines: 1,
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textAlignVertical: TextAlignVertical.center,
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style: const TextStyle(color: AppColors.cream, fontSize: 14),
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cursorColor: AppColors.blue,
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decoration: _composerDecoration(
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signedIn ? l10n.writeComment : l10n.commentLoginHint,
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),
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onTap: signedIn ? null : _authenticateForComment,
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onSubmitted: (_) => _post(),
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),
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),
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),
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const SizedBox(width: 8),
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SizedBox.square(
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dimension: _sendButtonSize,
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child: IconButton.filled(
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key: const Key('comment-post'),
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tooltip: l10n.postComment,
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padding: EdgeInsets.zero,
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iconSize: 18,
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onPressed: _controller.submitting ? null : _post,
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icon: _controller.submitting
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? const SizedBox.square(
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dimension: 16,
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child: CircularProgressIndicator(strokeWidth: 2),
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)
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: const Icon(Icons.send_rounded),
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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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class _CommentThread extends StatelessWidget {
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const _CommentThread({
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required this.comment,
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required this.controller,
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required this.handlers,
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});
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final DramaComment comment;
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final CommentController controller;
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final CommentInteractionHandlers handlers;
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@override
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Widget build(BuildContext context) {
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final replies = controller.repliesFor(comment.id);
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final expanded = controller.repliesExpanded(comment.id);
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return Column(
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crossAxisAlignment: CrossAxisAlignment.start,
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children: [
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CommentTile(
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comment: comment,
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controller: controller,
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handlers: handlers,
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),
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if (comment.replyCount > 0 || replies.isNotEmpty)
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Padding(
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padding: const EdgeInsets.only(left: 42, bottom: 4),
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child: TextButton(
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key: Key('comment-replies-${comment.id}'),
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onPressed: () => _toggleReplies(context),
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style: TextButton.styleFrom(
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foregroundColor: AppColors.blue,
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textStyle: const TextStyle(
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fontSize: 12,
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fontWeight: FontWeight.w600,
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),
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padding: const EdgeInsets.symmetric(horizontal: 4),
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minimumSize: const Size(0, 28),
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tapTargetSize: MaterialTapTargetSize.shrinkWrap,
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),
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child: Text(
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expanded
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? AppLocalizations.of(context)!.hideReplies
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: AppLocalizations.of(
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context,
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)!.viewReplies(comment.replyCount),
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),
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),
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),
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if (expanded)
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Padding(
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padding: const EdgeInsets.only(left: 28),
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child: Column(
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children: [
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if (controller.repliesLoading(comment.id))
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const Padding(
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padding: EdgeInsets.symmetric(vertical: 8),
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child: CircularProgressIndicator(),
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),
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for (final reply in replies)
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CommentTile(
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comment: reply,
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controller: controller,
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handlers: handlers,
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isReply: true,
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),
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if (controller.repliesHasMore(comment.id))
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TextButton(
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onPressed: () => controller.loadMoreReplies(comment.id),
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child: Text(AppLocalizations.of(context)!.loadMore),
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),
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],
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),
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),
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const Padding(
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padding: EdgeInsets.only(left: 42),
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child: Divider(height: 1, color: AppColors.border),
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),
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],
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);
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}
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Future<void> _toggleReplies(BuildContext context) async {
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if (controller.repliesExpanded(comment.id)) {
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controller.hideReplies(comment.id);
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return;
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}
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await controller.loadReplies(comment.id);
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}
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}
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