generated from dellevin/template
569 lines
23 KiB
Dart
569 lines
23 KiB
Dart
import 'dart:math' as math;
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import 'package:flutter/material.dart';
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import 'package:fl_chart/fl_chart.dart';
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import 'package:provider/provider.dart';
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import '../providers/app_provider.dart';
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import '../models/data_models.dart';
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import '../utils/user_prefs.dart';
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/// 数据统计页面 - 多维度数据分析
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class StatisticsPage extends StatefulWidget {
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const StatisticsPage({super.key});
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@override
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State<StatisticsPage> createState() => _StatisticsPageState();
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}
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class _StatisticsPageState extends State<StatisticsPage> {
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int _cloudTabIndex = 0; // 0=影视, 1=书籍, 2=笔记
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bool get _showMovies => UserPrefs().showMovieTab;
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bool get _showBooks => UserPrefs().showBookTab;
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bool get _showNotes => UserPrefs().showNoteTab;
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@override
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Widget build(BuildContext context) {
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final colors = Theme.of(context).colorScheme;
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return Scaffold(
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backgroundColor: colors.surface,
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appBar: AppBar(title: const Text('数据统计')),
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body: Consumer<AppProvider>(
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builder: (context, provider, child) {
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final movies = provider.movies.where((m) => !m.isDeleted).toList();
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final books = provider.books;
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final notes = provider.notes;
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return ListView(
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padding: const EdgeInsets.all(20),
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children: [
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_buildTotalCards(movies, books, notes),
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const SizedBox(height: 28),
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if (_showMovies) ...[
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_buildStatusSection('影视状态分布', movies, (m) => m.status, {'已看': 'watched', '在看': 'watching', '想看': 'want_to_watch'}),
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const SizedBox(height: 28),
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_buildGenreDistribution('影视类型分布', movies),
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const SizedBox(height: 28),
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],
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if (_showBooks) ...[
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_buildStatusSection('阅读状态分布', books, (b) => b.status, {'已读': 'read', '在读': 'reading', '想读': 'want_to_read'}),
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const SizedBox(height: 28),
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_buildGenreDistribution('书籍类型分布', books),
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const SizedBox(height: 28),
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],
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if (_showNotes) ...[
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_buildNoteTagDistribution('笔记标签分布', notes),
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const SizedBox(height: 28),
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],
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_buildTagCloud(movies, books, notes),
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const SizedBox(height: 28),
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_buildRatingDistribution('评分分布', movies, books),
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const SizedBox(height: 28),
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_buildMonthlyTrend(movies, books, notes),
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const SizedBox(height: 80),
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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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// ─── 总览卡片 ────────────────────────────────────────────────────────
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Widget _buildTotalCards(List<Movie> movies, List<Book> books, List<Note> notes) {
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final colors = Theme.of(context).colorScheme;
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final items = <_CardData>[];
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if (_showMovies) items.add(_CardData('影视', movies.length, Icons.movie_outlined, const Color(0xFF4A90D9)));
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if (_showBooks) items.add(_CardData('书籍', books.length, Icons.menu_book_outlined, const Color(0xFF7E57C2)));
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if (_showNotes) items.add(_CardData('笔记', notes.length, Icons.note_outlined, const Color(0xFF66BB6A)));
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return Row(
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children: items.map((d) => Expanded(
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child: Container(
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margin: EdgeInsets.only(right: d == items.last ? 0 : 10),
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padding: const EdgeInsets.symmetric(vertical: 20),
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decoration: BoxDecoration(
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color: d.color.withValues(alpha: 0.06),
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borderRadius: BorderRadius.circular(14),
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),
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child: Column(
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children: [
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Icon(d.icon, size: 26, color: d.color),
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const SizedBox(height: 10),
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Text('${d.count}', style: TextStyle(fontSize: 26, fontWeight: FontWeight.w700, color: d.color)),
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const SizedBox(height: 2),
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Text(d.label, style: TextStyle(fontSize: 12, color: colors.onSurface.withValues(alpha: 0.5))),
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],
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),
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),
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)).toList(),
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);
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}
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// ─── 状态分布 ────────────────────────────────────────────────────────
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Widget _buildStatusSection(String title, List items, String Function(dynamic) getStatus, Map<String, String> labels) {
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final colors = Theme.of(context).colorScheme;
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final active = items.where((i) => !(i is Movie) || !i.isDeleted).toList();
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final total = active.length;
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return _buildCard(
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title: title,
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child: Column(
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children: labels.entries.map((e) {
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final count = active.where((i) => getStatus(i) == e.value).length;
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final pct = total > 0 ? count / total : 0.0;
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return Padding(
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padding: const EdgeInsets.only(bottom: 14),
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child: Column(
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crossAxisAlignment: CrossAxisAlignment.start,
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children: [
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Row(
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children: [
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Text(e.key, style: TextStyle(fontSize: 13, color: colors.onSurface.withValues(alpha: 0.6))),
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const Spacer(),
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Text('$count', style: TextStyle(fontSize: 14, fontWeight: FontWeight.w600, color: colors.onSurface)),
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const SizedBox(width: 4),
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Text('${(pct * 100).toStringAsFixed(0)}%', style: TextStyle(fontSize: 12, color: colors.onSurface.withValues(alpha: 0.3))),
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],
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),
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const SizedBox(height: 6),
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ClipRRect(
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borderRadius: BorderRadius.circular(3),
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child: LinearProgressIndicator(
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value: pct,
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backgroundColor: colors.outlineVariant,
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color: colors.primary,
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minHeight: 6,
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),
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),
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],
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),
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);
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}).toList(),
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),
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);
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}
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// ─── 类型/标签分布 ───────────────────────────────────────────────────
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Widget _buildGenreDistribution(String title, List items) {
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final colors = Theme.of(context).colorScheme;
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final genreCounts = <String, int>{};
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for (final item in items) {
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for (final genre in (item.genres as List<String>)) {
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genreCounts[genre] = (genreCounts[genre] ?? 0) + 1;
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}
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}
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final sorted = genreCounts.entries.toList()
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..sort((a, b) => b.value.compareTo(a.value));
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final top = sorted.take(8).toList();
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if (top.isEmpty) return const SizedBox.shrink();
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final maxCount = top.first.value;
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return _buildCard(
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title: title,
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child: Column(
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children: top.map((e) {
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final pct = maxCount > 0 ? e.value / maxCount : 0.0;
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return Padding(
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padding: const EdgeInsets.only(bottom: 10),
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child: Row(
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children: [
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SizedBox(
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width: 60,
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child: Text(e.key, style: TextStyle(fontSize: 12, color: colors.onSurface.withValues(alpha: 0.6)), overflow: TextOverflow.ellipsis),
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),
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const SizedBox(width: 10),
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Expanded(
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child: ClipRRect(
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borderRadius: BorderRadius.circular(2),
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child: LinearProgressIndicator(value: pct, backgroundColor: colors.outlineVariant, color: colors.primary, minHeight: 4),
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),
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),
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const SizedBox(width: 8),
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Text('${e.value}', style: TextStyle(fontSize: 12, fontWeight: FontWeight.w600, color: colors.onSurface)),
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],
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),
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);
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}).toList(),
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),
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);
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}
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Widget _buildNoteTagDistribution(String title, List<Note> notes) {
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final colors = Theme.of(context).colorScheme;
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final tagCounts = <String, int>{};
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for (final note in notes) {
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for (final tag in note.tags) {
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tagCounts[tag] = (tagCounts[tag] ?? 0) + 1;
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}
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}
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final sorted = tagCounts.entries.toList()
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..sort((a, b) => b.value.compareTo(a.value));
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final top = sorted.take(8).toList();
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if (top.isEmpty) return const SizedBox.shrink();
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final maxCount = top.first.value;
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return _buildCard(
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title: title,
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child: Column(
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children: top.map((e) {
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final pct = maxCount > 0 ? e.value / maxCount : 0.0;
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return Padding(
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padding: const EdgeInsets.only(bottom: 10),
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child: Row(
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children: [
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SizedBox(
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width: 60,
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child: Text(e.key, style: TextStyle(fontSize: 12, color: colors.onSurface.withValues(alpha: 0.6)), overflow: TextOverflow.ellipsis),
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),
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const SizedBox(width: 10),
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Expanded(
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child: ClipRRect(
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borderRadius: BorderRadius.circular(2),
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child: LinearProgressIndicator(value: pct, backgroundColor: colors.outlineVariant, color: colors.primary, minHeight: 4),
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),
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),
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const SizedBox(width: 8),
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Text('${e.value}', style: TextStyle(fontSize: 12, fontWeight: FontWeight.w600, color: colors.onSurface)),
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],
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),
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);
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}).toList(),
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),
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);
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}
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// ─── 评分分布 ────────────────────────────────────────────────────────
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Widget _buildRatingDistribution(String title, List<Movie> movies, List<Book> books) {
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final colors = Theme.of(context).colorScheme;
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final allRatings = <double>[];
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for (final m in movies) {
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if (m.rating != null) allRatings.add(m.rating!);
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}
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for (final b in books) {
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if (b.rating != null) allRatings.add(b.rating!);
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}
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if (allRatings.isEmpty) return const SizedBox.shrink();
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final avg = allRatings.reduce((a, b) => a + b) / allRatings.length;
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// 按 1-10 分统计
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final counts = List.filled(10, 0);
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for (final r in allRatings) {
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final idx = (r.round()).clamp(1, 10) - 1;
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counts[idx]++;
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}
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final maxCount = counts.reduce((a, b) => a > b ? a : b).toDouble();
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if (maxCount == 0) return const SizedBox.shrink();
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// 渐变色：低分灰色 → 高分金色
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const barColors = [
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Color(0xFFBDBDBD), Color(0xFFBDBDBD), // 1-2 灰
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Color(0xFFFFCC80), Color(0xFFFFCC80), // 3-4 橙黄
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Color(0xFFFFB74D), Color(0xFFFFB74D), // 5-6 橙
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Color(0xFFFFA726), Color(0xFFFFA726), // 7-8 深橙
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Color(0xFFFFB800), Color(0xFFFFB800), // 9-10 金
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];
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return _buildCard(
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title: title,
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child: Column(
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children: [
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// 平均评分
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Row(
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children: [
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Text('平均评分', style: TextStyle(fontSize: 13, color: colors.onSurface.withValues(alpha: 0.6))),
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const Spacer(),
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Text(avg.toStringAsFixed(1), style: TextStyle(fontSize: 22, fontWeight: FontWeight.w700, color: colors.onSurface)),
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Text(' / 10', style: TextStyle(fontSize: 13, color: colors.onSurface.withValues(alpha: 0.3))),
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],
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),
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const SizedBox(height: 20),
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// 柱状图
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SizedBox(
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height: 160,
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child: BarChart(
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BarChartData(
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alignment: BarChartAlignment.spaceAround,
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maxY: maxCount * 1.2,
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minY: 0,
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barTouchData: BarTouchData(
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touchTooltipData: BarTouchTooltipData(
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getTooltipColor: (_) => colors.inverseSurface,
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getTooltipItem: (group, groupIndex, rod, rodIndex) {
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return BarTooltipItem(
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'${group.x + 1}星 ${rod.toY.toInt()}部',
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TextStyle(color: colors.onInverseSurface, fontSize: 12, fontWeight: FontWeight.w600),
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);
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},
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),
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),
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titlesData: FlTitlesData(
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show: true,
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bottomTitles: AxisTitles(
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sideTitles: SideTitles(
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showTitles: true,
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getTitlesWidget: (value, meta) {
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return Padding(
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padding: const EdgeInsets.only(top: 6),
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child: Text('${value.toInt() + 1}', style: TextStyle(
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fontSize: 10, color: colors.onSurface.withValues(alpha: 0.5))),
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);
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},
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reservedSize: 24,
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),
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),
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leftTitles: const AxisTitles(sideTitles: SideTitles(showTitles: false)),
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topTitles: const AxisTitles(sideTitles: SideTitles(showTitles: false)),
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rightTitles: const AxisTitles(sideTitles: SideTitles(showTitles: false)),
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),
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borderData: FlBorderData(show: false),
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gridData: const FlGridData(show: false),
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barGroups: List.generate(10, (i) {
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return BarChartGroupData(
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x: i,
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barRods: [
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BarChartRodData(
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toY: counts[i].toDouble(),
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color: barColors[i],
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width: 20,
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borderRadius: const BorderRadius.vertical(top: Radius.circular(4)),
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backDrawRodData: BackgroundBarChartRodData(
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show: true,
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toY: maxCount * 1.2,
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color: colors.outlineVariant.withValues(alpha: 0.3),
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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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),
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const SizedBox(height: 8),
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// 底部标签
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Text('星级评分', style: TextStyle(fontSize: 11, color: colors.onSurface.withValues(alpha: 0.3))),
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],
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),
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);
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}
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// ─── 月度趋势 ────────────────────────────────────────────────────────
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Widget _buildMonthlyTrend(List<Movie> movies, List<Book> books, List<Note> notes) {
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final colors = Theme.of(context).colorScheme;
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final now = DateTime.now();
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final months = List.generate(6, (i) {
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final d = DateTime(now.year, now.month - (5 - i), 1);
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return '${d.month}月';
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});
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final counts = <String, List<int>>{};
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if (_showMovies) counts['影视'] = List.filled(6, 0);
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if (_showBooks) counts['书籍'] = List.filled(6, 0);
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if (_showNotes) counts['笔记'] = List.filled(6, 0);
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for (final m in movies) {
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final idx = _monthIndex(m.createdAt, now);
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if (idx >= 0 && idx < 6) counts['影视']?[idx] = (counts['影视']?[idx] ?? 0) + 1;
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}
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for (final b in books) {
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final idx = _monthIndex(b.createdAt, now);
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if (idx >= 0 && idx < 6) counts['书籍']?[idx] = (counts['书籍']?[idx] ?? 0) + 1;
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}
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for (final n in notes) {
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final idx = _monthIndex(n.createdAt, now);
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if (idx >= 0 && idx < 6) counts['笔记']?[idx] = (counts['笔记']?[idx] ?? 0) + 1;
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}
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final allValues = counts.values.expand((l) => l);
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final maxVal = allValues.isEmpty ? 1 : allValues.reduce((a, b) => a > b ? a : b);
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final safeMax = maxVal == 0 ? 1 : maxVal;
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final brandColors = { '影视': const Color(0xFF4A90D9), '书籍': const Color(0xFF7E57C2), '笔记': const Color(0xFF66BB6A) };
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return _buildCard(
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title: '近6月趋势',
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child: Column(
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children: [
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SizedBox(
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height: 120,
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child: Row(
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crossAxisAlignment: CrossAxisAlignment.end,
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children: List.generate(6, (i) => Expanded(
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child: Padding(
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padding: const EdgeInsets.symmetric(horizontal: 2),
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child: Column(
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mainAxisAlignment: MainAxisAlignment.end,
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children: [
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...counts.entries.map((e) {
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final h = (e.value[i] / safeMax * 80).clamp(0, 80).toDouble();
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return Container(
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height: h < 2 && e.value[i] > 0 ? 2 : h,
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margin: const EdgeInsets.only(top: 1),
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decoration: BoxDecoration(
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color: brandColors[e.key]!.withValues(alpha: 0.7),
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borderRadius: BorderRadius.circular(2),
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),
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);
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}).toList(),
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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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const SizedBox(height: 8),
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Divider(height: 1, color: colors.outlineVariant),
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const SizedBox(height: 8),
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// 月份标签
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Row(
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children: months.map((m) => Expanded(
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child: Text(m, textAlign: TextAlign.center, style: TextStyle(fontSize: 11, color: colors.onSurface.withValues(alpha: 0.3))),
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)).toList(),
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),
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const SizedBox(height: 12),
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// 图例
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Row(
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mainAxisAlignment: MainAxisAlignment.center,
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children: counts.keys.map((k) => Padding(
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padding: const EdgeInsets.symmetric(horizontal: 10),
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child: Row(
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mainAxisSize: MainAxisSize.min,
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children: [
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Container(width: 8, height: 8, decoration: BoxDecoration(color: brandColors[k], borderRadius: BorderRadius.circular(2))),
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const SizedBox(width: 4),
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Text(k, style: TextStyle(fontSize: 12, color: colors.onSurface.withValues(alpha: 0.5))),
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],
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),
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)).toList(),
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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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int _monthIndex(DateTime date, DateTime now) {
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final diff = (now.year - date.year) * 12 + (now.month - date.month);
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return 5 - diff; // index 0..5 where 0=5 months ago, 5=current month
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}
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// ─── 标签词云 ──────────────────────────────────────────────────────────
|
|
|
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Widget _buildTagCloud(List<Movie> movies, List<Book> books, List<Note> notes) {
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final colors = Theme.of(context).colorScheme;
|
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final tabs = <String>[];
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if (_showMovies) tabs.add('影视');
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if (_showBooks) tabs.add('书籍');
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if (_showNotes) tabs.add('笔记');
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if (tabs.isEmpty) return const SizedBox.shrink();
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|
|
// 确保 cloudTabIndex 在有效范围内
|
|
if (_cloudTabIndex >= tabs.length) _cloudTabIndex = 0;
|
|
|
|
final tagCounts = <String, int>{};
|
|
switch (tabs[_cloudTabIndex]) {
|
|
case '影视':
|
|
for (final m in movies) { for (final g in m.genres) { tagCounts[g] = (tagCounts[g] ?? 0) + 1; } }
|
|
break;
|
|
case '书籍':
|
|
for (final b in books) { for (final g in b.genres) { tagCounts[g] = (tagCounts[g] ?? 0) + 1; } }
|
|
break;
|
|
case '笔记':
|
|
for (final n in notes) { for (final t in n.tags) { tagCounts[t] = (tagCounts[t] ?? 0) + 1; } }
|
|
break;
|
|
}
|
|
|
|
final sorted = tagCounts.entries.toList()..sort((a, b) => b.value.compareTo(a.value));
|
|
if (sorted.isEmpty) return const SizedBox.shrink();
|
|
|
|
final maxCount = sorted.first.value;
|
|
final minCount = sorted.last.value;
|
|
final range = math.max(maxCount - minCount, 1);
|
|
|
|
const cloudColors = [
|
|
Color(0xFFE53935), Color(0xFF4A90D9), Color(0xFF7E57C2),
|
|
Color(0xFF66BB6A), Color(0xFFFF8F00), Color(0xFF00ACC1),
|
|
Color(0xFF5C6BC0), Color(0xFF26A69A), Color(0xFF8D6E63),
|
|
];
|
|
|
|
return _buildCard(
|
|
title: '标签词云',
|
|
child: Column(children: [
|
|
// Tab 切换
|
|
Row(
|
|
children: tabs.map((t) {
|
|
final i = tabs.indexOf(t);
|
|
final selected = _cloudTabIndex == i;
|
|
return Expanded(
|
|
child: GestureDetector(
|
|
onTap: () => setState(() => _cloudTabIndex = i),
|
|
child: Container(
|
|
padding: const EdgeInsets.symmetric(vertical: 8),
|
|
margin: EdgeInsets.only(right: i < tabs.length - 1 ? 6 : 0),
|
|
decoration: BoxDecoration(
|
|
color: selected ? colors.primary : colors.surfaceContainerHighest,
|
|
borderRadius: BorderRadius.circular(8),
|
|
),
|
|
child: Text(t, textAlign: TextAlign.center, style: TextStyle(fontSize: 13, fontWeight: selected ? FontWeight.w600 : FontWeight.w500, color: selected ? colors.onPrimary : colors.onSurface.withValues(alpha: 0.5))),
|
|
),
|
|
),
|
|
);
|
|
}).toList(),
|
|
),
|
|
const SizedBox(height: 16),
|
|
// 词云
|
|
Wrap(
|
|
spacing: 6,
|
|
runSpacing: 6,
|
|
children: sorted.map((e) {
|
|
final ratio = (e.value - minCount) / range;
|
|
final fontSize = (12.0 + ratio * 18.0).roundToDouble();
|
|
final c = cloudColors[((ratio * (cloudColors.length - 1)).round()).clamp(0, cloudColors.length - 1)];
|
|
return Padding(
|
|
padding: const EdgeInsets.symmetric(horizontal: 2, vertical: 1),
|
|
child: Text(e.key, style: TextStyle(fontSize: fontSize, fontWeight: fontSize > 18 ? FontWeight.w700 : FontWeight.w500, color: c, height: 1.3)),
|
|
);
|
|
}).toList(),
|
|
),
|
|
]),
|
|
);
|
|
}
|
|
|
|
// ─── 通用卡片 ────────────────────────────────────────────────────────
|
|
|
|
Widget _buildCard({required String title, required Widget child}) {
|
|
final colors = Theme.of(context).colorScheme;
|
|
return Container(
|
|
padding: const EdgeInsets.all(18),
|
|
decoration: BoxDecoration(
|
|
color: colors.surfaceContainerHigh,
|
|
borderRadius: BorderRadius.circular(14),
|
|
),
|
|
child: Column(
|
|
crossAxisAlignment: CrossAxisAlignment.start,
|
|
children: [
|
|
Row(
|
|
children: [
|
|
Container(width: 3, height: 14, decoration: BoxDecoration(color: colors.primary, borderRadius: BorderRadius.circular(2))),
|
|
const SizedBox(width: 8),
|
|
Text(title, style: TextStyle(fontSize: 14, fontWeight: FontWeight.w600, color: colors.onSurface)),
|
|
],
|
|
),
|
|
const SizedBox(height: 16),
|
|
child,
|
|
],
|
|
),
|
|
);
|
|
}
|
|
}
|
|
|
|
class _CardData {
|
|
final String label;
|
|
final int count;
|
|
final IconData icon;
|
|
final Color color;
|
|
_CardData(this.label, this.count, this.icon, this.color);
|
|
}
|