优化编辑新增界面

lib/pages/book/book_detail_page.dart

@@ -1,14 +1,20 @@
 import 'dart:io';
 import 'dart:ui' as ui;
+import 'package:flutter/foundation.dart';
 import 'package:flutter/material.dart';
 import 'package:flutter/services.dart';
+import 'package:image_picker/image_picker.dart';
+import 'package:path/path.dart' as p;
 import 'package:provider/provider.dart';
+import 'package:http/http.dart' as http;
 import '../../widgets/fade_in_local_image.dart';
 import '../../providers/app_provider.dart';
 import '../../models/data_models.dart';
 import '../../utils/toast_util.dart';
 import '../../utils/user_prefs.dart';
+import '../../utils/image_path_helper.dart';
 import '../../utils/responsive.dart';
+import '../../widgets/genre_selector_page.dart';
 import 'book_reviews_page.dart';
 import 'book_excerpts_page.dart';
 import 'book_share_page.dart';
@@ -37,12 +43,37 @@ class _BookDetailPageState extends State<BookDetailPage> {
   final ValueNotifier<bool> _showTitle = ValueNotifier(false);
   ScrollController? _overlayScrollController;
 
+  // ─── 编辑模式 ───
+  bool _isEditing = false;
+  final _editFormKey = GlobalKey<FormState>();
+  late TextEditingController _titleCtrl;
+  late TextEditingController _summaryCtrl;
+  late TextEditingController _ratingCtrl;
+  late TextEditingController _publisherCtrl;
+  late TextEditingController _isbnCtrl;
+  List<String> _editAuthors = [];
+  List<String> _editTranslators = [];
+  List<String> _editGenres = [];
+  List<String> _editAlternateTitles = [];
+  String? _editCoverPath;
+  String _editStatus = 'want_to_read';
+  DateTime? _editPublishDate;
+  DateTime? _editStartDate;
+  DateTime? _editFinishDate;
+  bool _editIsDownloading = false;
+  final ImagePicker _picker = ImagePicker();
+
   @override
   void dispose() {
     _coverOffset.dispose();
     _draggingCover.dispose();
     _showTitle.dispose();
     _overlayScrollController?.dispose();
+    _titleCtrl.dispose();
+    _summaryCtrl.dispose();
+    _ratingCtrl.dispose();
+    _publisherCtrl.dispose();
+    _isbnCtrl.dispose();
     super.dispose();
   }
 
@@ -51,6 +82,45 @@ class _BookDetailPageState extends State<BookDetailPage> {
     super.initState();
     _detailStyle = UserPrefs().detailPageStyle;
     _coverOffset.value = UserPrefs().getCoverOffset(widget.book.id);
+    _initEditControllers();
+  }
+
+  void _initEditControllers() {
+    final b = widget.book;
+    _titleCtrl = TextEditingController(text: b.title);
+    _summaryCtrl = TextEditingController(text: b.summary ?? '');
+    _ratingCtrl = TextEditingController(text: b.rating?.toString() ?? '');
+    _publisherCtrl = TextEditingController(text: b.publisher ?? '');
+    _isbnCtrl = TextEditingController(text: b.isbn ?? '');
+    _editAuthors = List.from(b.authors);
+    _editTranslators = List.from(b.translators);
+    _editGenres = List.from(b.genres);
+    _editAlternateTitles = List.from(b.alternateTitles);
+    _editCoverPath = b.coverPath;
+    _editStatus = b.status;
+    _editPublishDate = b.publishDate;
+    _editStartDate = b.startDate;
+    _editFinishDate = b.finishDate;
+  }
+
+  void _enterEditMode() {
+    final latest = context.read<AppProvider>().books
+        .where((b) => b.id == widget.book.id).firstOrNull ?? widget.book;
+    _titleCtrl.text = latest.title;
+    _summaryCtrl.text = latest.summary ?? '';
+    _ratingCtrl.text = latest.rating?.toString() ?? '';
+    _publisherCtrl.text = latest.publisher ?? '';
+    _isbnCtrl.text = latest.isbn ?? '';
+    _editAuthors = List.from(latest.authors);
+    _editTranslators = List.from(latest.translators);
+    _editGenres = List.from(latest.genres);
+    _editAlternateTitles = List.from(latest.alternateTitles);
+    _editCoverPath = latest.coverPath;
+    _editStatus = latest.status;
+    _editPublishDate = latest.publishDate;
+    _editStartDate = latest.startDate;
+    _editFinishDate = latest.finishDate;
+    setState(() => _isEditing = true);
   }
 
   @override
@@ -71,6 +141,7 @@ class _BookDetailPageState extends State<BookDetailPage> {
 
   /// 桌面端左右分栏布局
   Widget _buildDesktopStyle(Book book, ColorScheme colors) {
+    if (_isEditing) return _buildDesktopEditStyle(book, colors);
     final hasCover = book.coverPath != null && book.coverPath!.isNotEmpty;
     return Scaffold(
       backgroundColor: colors.surface,
@@ -143,13 +214,12 @@ class _BookDetailPageState extends State<BookDetailPage> {
                         ],
                         _buildEpubProgressBar(book),
                         const SizedBox(height: 16),
-                        Row(children: [
+                        Wrap(spacing: 6, runSpacing: 4, crossAxisAlignment: WrapCrossAlignment.center, children: [
                           if (book.rating != null) ...[
                             Icon(Icons.star, size: 20, color: colors.onSurface),
                             const SizedBox(width: 4),
                             Text(book.rating!.toStringAsFixed(1),
                               style: TextStyle(fontSize: 18, fontWeight: FontWeight.w600, color: colors.onSurface)),
-                            const SizedBox(width: 16),
                           ],
                           _buildStatusTag(book),
                         ]),
@@ -263,7 +333,7 @@ class _BookDetailPageState extends State<BookDetailPage> {
                 ),
                 const SizedBox(width: 12),
                 FilledButton.icon(
-                  onPressed: () => _navigateToEdit(context),
+                  onPressed: _enterEditMode,
                   icon: const Icon(Icons.edit_outlined, size: 16),
                   label: const Text('编辑'),
                   style: FilledButton.styleFrom(
@@ -278,6 +348,375 @@ class _BookDetailPageState extends State<BookDetailPage> {
     );
   }
 
+  // ─── 桌面端编辑模式 ──────────────────────────────────────────
+
+  Widget _buildDesktopEditStyle(Book book, ColorScheme colors) {
+    final hasCover = _editCoverPath != null && _editCoverPath!.isNotEmpty;
+    return Scaffold(
+      backgroundColor: colors.surface,
+      body: Form(
+        key: _editFormKey,
+        child: Column(
+          children: [
+            Container(
+              height: 48,
+              decoration: BoxDecoration(color: colors.surface,
+                border: Border(bottom: BorderSide(color: colors.outlineVariant, width: 0.5))),
+              child: Row(children: [
+                IconButton(icon: Icon(Icons.close, color: colors.onSurface, size: 18),
+                  onPressed: () => setState(() => _isEditing = false)),
+                Expanded(child: Text('编辑书籍',
+                  style: TextStyle(fontSize: 16, fontWeight: FontWeight.w600, color: colors.onSurface))),
+                FilledButton.icon(onPressed: _saveEdit,
+                  icon: const Icon(Icons.check, size: 16), label: const Text('保存'),
+                  style: FilledButton.styleFrom(padding: const EdgeInsets.symmetric(horizontal: 16, vertical: 8),
+                    shape: RoundedRectangleBorder(borderRadius: BorderRadius.circular(8)))),
+                const SizedBox(width: 12),
+              ]),
+            ),
+            Expanded(
+              child: Row(crossAxisAlignment: CrossAxisAlignment.start, children: [
+                // 左侧：封面 + 状态/评分
+                Container(width: 240, padding: const EdgeInsets.all(20), child: Column(children: [
+                  GestureDetector(onTap: _showEditCoverOptions, child: Container(
+                    width: 200, height: 280,
+                    decoration: BoxDecoration(color: colors.surfaceContainerHighest, borderRadius: BorderRadius.circular(12)),
+                    clipBehavior: Clip.antiAlias,
+                    child: Stack(alignment: Alignment.center, children: [
+                      hasCover ? FadeInLocalImage(path: _editCoverPath, fit: BoxFit.cover)
+                        : Column(mainAxisAlignment: MainAxisAlignment.center, children: [
+                            Icon(Icons.image_outlined, size: 32, color: colors.onSurface.withValues(alpha: 0.25)),
+                            const SizedBox(height: 8),
+                            Text('点击添加封面', style: TextStyle(fontSize: 12, color: colors.onSurface.withValues(alpha: 0.35))),
+                          ]),
+                      if (_editIsDownloading) Container(color: Colors.black.withValues(alpha: 0.4),
+                        child: const CircularProgressIndicator(strokeWidth: 2, color: Colors.white)),
+                    ]),
+                  )),
+                  if (hasCover) Padding(padding: const EdgeInsets.only(top: 8),
+                    child: GestureDetector(onTap: () => setState(() => _editCoverPath = null),
+                      child: Text('移除封面', style: TextStyle(fontSize: 12, color: colors.onSurface.withValues(alpha: 0.5))))),
+                  const SizedBox(height: 20),
+                  _buildEditSectionLabel('状态', colors),
+                  const SizedBox(height: 6),
+                  Container(padding: const EdgeInsets.all(2),
+                    decoration: BoxDecoration(color: colors.surfaceContainerHighest, borderRadius: BorderRadius.circular(6)),
+                    child: Wrap(spacing: 0, runSpacing: 4, children: [
+                      _buildEditStatusChip('想读', 'want_to_read', colors),
+                      _buildEditStatusChip('在读', 'reading', colors),
+                      _buildEditStatusChip('已读', 'read', colors),
+                      _buildEditStatusChip('弃读', 'abandoned', colors),
+                    ])),
+                  const SizedBox(height: 16),
+                  _buildEditSectionLabel('评分', colors),
+                  const SizedBox(height: 6),
+                  Row(children: [
+                    ...List.generate(5, (i) {
+                      final starVal = i + 1;
+                      final currentRating = double.tryParse(_ratingCtrl.text) ?? 0;
+                      final starRating = currentRating / 2;
+                      final isFilled = starVal <= starRating;
+                      final isHalf = starVal == starRating.ceil() && starRating % 1 != 0;
+                      return GestureDetector(onTap: () => setState(() => _ratingCtrl.text = (starVal * 2).toString()),
+                        child: Padding(padding: const EdgeInsets.symmetric(horizontal: 1),
+                          child: Icon(isHalf ? Icons.star_half : (isFilled ? Icons.star : Icons.star_border),
+                            size: 20, color: (isFilled || isHalf) ? const Color(0xFFFFB800) : colors.outline)));
+                    }),
+                    const SizedBox(width: 8),
+                    Container(width: 48, height: 28,
+                      decoration: BoxDecoration(color: colors.surfaceContainerHighest, borderRadius: BorderRadius.circular(6)),
+                      child: TextFormField(controller: _ratingCtrl,
+                        keyboardType: const TextInputType.numberWithOptions(decimal: true),
+                        textAlign: TextAlign.center, inputFormatters: [_RatingInputFormatter()],
+                        style: TextStyle(fontSize: 13, fontWeight: FontWeight.w500, color: colors.onSurface),
+                        decoration: InputDecoration(hintText: '0-10', hintStyle: TextStyle(fontSize: 11, color: colors.onSurface.withValues(alpha: 0.25)),
+                          border: InputBorder.none, contentPadding: const EdgeInsets.symmetric(vertical: 6), isDense: true),
+                        onChanged: (_) => setState(() {}))),
+                    if (_ratingCtrl.text.isNotEmpty) ...[
+                      const SizedBox(width: 4),
+                      GestureDetector(onTap: () => setState(() => _ratingCtrl.clear()),
+                        child: Icon(Icons.close, size: 14, color: colors.onSurface.withValues(alpha: 0.3))),
+                    ],
+                  ]),
+                ])),
+                // 右侧：可滚动表单
+                Expanded(child: SingleChildScrollView(
+                  padding: const EdgeInsets.fromLTRB(0, 20, 24, 80),
+                  child: Column(crossAxisAlignment: CrossAxisAlignment.start, children: [
+                    _buildEditField('名称', _titleCtrl, hint: '书籍名称', required: true),
+                    const SizedBox(height: 16),
+                    _buildEditChipField('作者', _editAuthors, onTap: () async {
+                      final provider = context.read<AppProvider>();
+                      final data = provider.books.map((b) => b.authors).toList();
+                      final result = await GenreSelectorPage.show(context: context, title: '选择作者',
+                        existingTagsFuture: compute(_collectUnique, data), initialSelected: _editAuthors, hint: '如：余华、莫言');
+                      if (result != null) setState(() => _editAuthors = result);
+                    }),
+                    const SizedBox(height: 16),
+                    _buildEditChipField('译者', _editTranslators, onTap: () async {
+                      final provider = context.read<AppProvider>();
+                      final data = provider.books.map((b) => b.translators).toList();
+                      final result = await GenreSelectorPage.show(context: context, title: '选择译者',
+                        existingTagsFuture: compute(_collectUnique, data), initialSelected: _editTranslators, hint: '如：林少华');
+                      if (result != null) setState(() => _editTranslators = result);
+                    }),
+                    const SizedBox(height: 16),
+                    _buildEditChipField('别名', _editAlternateTitles, onTap: () async {
+                      final result = await GenreSelectorPage.show(context: context, title: '添加别名',
+                        existingTags: [], initialSelected: _editAlternateTitles, hint: '输入别名');
+                      if (result != null) setState(() => _editAlternateTitles = result);
+                    }),
+                    const SizedBox(height: 16),
+                    _buildEditChipField('类型', _editGenres, onTap: () async {
+                      final provider = context.read<AppProvider>();
+                      final tags = await provider.getTags('book_genre', excludeHidden: true);
+                      final names = tags.map((t) => t['name'] as String).toList();
+                      if (!mounted) return;
+                      final result = await GenreSelectorPage.show(context: context, title: '选择类型',
+                        existingTags: names, initialSelected: _editGenres, hint: '如：小说、科幻');
+                      if (result != null) setState(() => _editGenres = result);
+                    }),
+                    const SizedBox(height: 16),
+                    _buildEditField('出版社', _publisherCtrl, hint: '出版社名称'),
+                    const SizedBox(height: 16),
+                    _buildEditField('ISBN', _isbnCtrl, hint: 'ISBN编号'),
+                    const SizedBox(height: 16),
+                    Row(children: [
+                      Expanded(child: _buildEditDateField('出版时间', _editPublishDate, (d) => setState(() => _editPublishDate = d))),
+                      const SizedBox(width: 12),
+                      Expanded(child: _buildEditDateField('开始阅读', _editStartDate, (d) => setState(() => _editStartDate = d), clearable: true)),
+                    ]),
+                    const SizedBox(height: 16),
+                    _buildEditDateField('读完日期', _editFinishDate, (d) => setState(() => _editFinishDate = d), clearable: true),
+                    const SizedBox(height: 16),
+                    _buildEditSectionLabel('简介', colors),
+                    const SizedBox(height: 6),
+                    Container(constraints: const BoxConstraints(minHeight: 120),
+                      child: TextFormField(controller: _summaryCtrl, maxLines: null,
+                        style: TextStyle(fontSize: 14, color: colors.onSurface, height: 1.6),
+                        decoration: InputDecoration(hintText: '写下书籍简介...',
+                          hintStyle: TextStyle(color: colors.onSurface.withValues(alpha: 0.25)),
+                          filled: true, fillColor: colors.surfaceContainerHighest.withValues(alpha: 0.5),
+                          border: OutlineInputBorder(borderRadius: BorderRadius.circular(8), borderSide: BorderSide.none),
+                          contentPadding: const EdgeInsets.all(12)))),
+                  ]),
+                )),
+              ]),
+            ),
+            Container(height: 48,
+              decoration: BoxDecoration(color: colors.surface,
+                border: Border(top: BorderSide(color: colors.outlineVariant, width: 0.5))),
+              padding: const EdgeInsets.symmetric(horizontal: 24),
+              child: Row(mainAxisAlignment: MainAxisAlignment.end, children: [
+                OutlinedButton.icon(onPressed: () => _showDeleteDialog(context),
+                  icon: Icon(Icons.delete_outline, size: 16, color: colors.error),
+                  label: Text('删除', style: TextStyle(color: colors.error)),
+                  style: OutlinedButton.styleFrom(side: BorderSide(color: colors.error.withValues(alpha: 0.3)),
+                    shape: RoundedRectangleBorder(borderRadius: BorderRadius.circular(8)))),
+              ])),
+          ],
+        ),
+      ),
+    );
+  }
+
+  Widget _buildEditSectionLabel(String label, ColorScheme colors) {
+    return Text(label, style: TextStyle(fontSize: 12, color: colors.onSurface.withValues(alpha: 0.4)));
+  }
+
+  Widget _buildEditStatusChip(String label, String value, ColorScheme colors) {
+    final selected = _editStatus == value;
+    return GestureDetector(onTap: () => setState(() => _editStatus = value),
+      child: Container(padding: const EdgeInsets.symmetric(horizontal: 12, vertical: 6),
+        decoration: BoxDecoration(color: selected ? colors.surface : Colors.transparent,
+          borderRadius: BorderRadius.circular(6),
+          boxShadow: selected ? [BoxShadow(color: colors.onSurface.withValues(alpha: 0.03), blurRadius: 4, offset: const Offset(0, 2))] : null),
+        child: Text(label, style: TextStyle(fontSize: 12, fontWeight: selected ? FontWeight.w500 : FontWeight.normal,
+          color: selected ? colors.onSurface : colors.onSurface.withValues(alpha: 0.4)))));
+  }
+
+  Widget _buildEditField(String label, TextEditingController ctrl, {String hint = '', bool required = false}) {
+    final colors = Theme.of(context).colorScheme;
+    return Column(crossAxisAlignment: CrossAxisAlignment.start, children: [
+      Text(required ? '$label *' : label, style: TextStyle(fontSize: 12, color: colors.onSurface.withValues(alpha: 0.4))),
+      const SizedBox(height: 6),
+      TextFormField(controller: ctrl, style: TextStyle(fontSize: 14, color: colors.onSurface),
+        validator: required ? (v) => (v == null || v.trim().isEmpty) ? '请输入$label' : null : null,
+        decoration: InputDecoration(hintText: hint, hintStyle: TextStyle(color: colors.onSurface.withValues(alpha: 0.25)),
+          filled: true, fillColor: colors.surfaceContainerHighest.withValues(alpha: 0.5),
+          border: OutlineInputBorder(borderRadius: BorderRadius.circular(8), borderSide: BorderSide.none),
+          contentPadding: const EdgeInsets.symmetric(horizontal: 12, vertical: 10), isDense: true)),
+    ]);
+  }
+
+  Widget _buildEditChipField(String label, List<String> chips, {required VoidCallback onTap}) {
+    final colors = Theme.of(context).colorScheme;
+    return Column(crossAxisAlignment: CrossAxisAlignment.start, children: [
+      Text(label, style: TextStyle(fontSize: 12, color: colors.onSurface.withValues(alpha: 0.4))),
+      const SizedBox(height: 6),
+      GestureDetector(onTap: onTap,
+        child: Container(width: double.infinity, padding: const EdgeInsets.symmetric(horizontal: 10, vertical: 8),
+          decoration: BoxDecoration(color: colors.surfaceContainerHighest.withValues(alpha: 0.5), borderRadius: BorderRadius.circular(8)),
+          child: chips.isEmpty
+            ? Text('点击选择$label', style: TextStyle(fontSize: 14, color: colors.onSurface.withValues(alpha: 0.25)))
+            : Wrap(spacing: 4, runSpacing: 4, children: chips.map((c) => Container(
+                padding: const EdgeInsets.symmetric(horizontal: 8, vertical: 4),
+                decoration: BoxDecoration(color: colors.surface, borderRadius: BorderRadius.circular(4)),
+                child: Text(c, style: TextStyle(fontSize: 12, color: colors.onSurface)))).toList()))),
+    ]);
+  }
+
+  Widget _buildEditDateField(String label, DateTime? date, ValueChanged<DateTime?> onChanged, {bool clearable = false}) {
+    final colors = Theme.of(context).colorScheme;
+    final hasDate = date != null;
+    return Column(crossAxisAlignment: CrossAxisAlignment.start, children: [
+      Text(label, style: TextStyle(fontSize: 12, color: colors.onSurface.withValues(alpha: 0.4))),
+      const SizedBox(height: 6),
+      GestureDetector(onTap: () async {
+        final picked = await showDatePicker(context: context, initialDate: date ?? DateTime.now(),
+          firstDate: DateTime(1900), lastDate: DateTime.now().add(const Duration(days: 365 * 5)));
+        if (picked != null) onChanged(picked);
+      },
+        child: Container(width: double.infinity, padding: const EdgeInsets.symmetric(horizontal: 12, vertical: 10),
+          decoration: BoxDecoration(color: colors.surfaceContainerHighest.withValues(alpha: 0.5), borderRadius: BorderRadius.circular(8)),
+          child: Row(children: [
+            Icon(Icons.calendar_today_outlined, size: 14, color: colors.onSurface.withValues(alpha: 0.4)),
+            const SizedBox(width: 8),
+            Text(hasDate ? '${date!.year}.${date!.month.toString().padLeft(2, '0')}.${date!.day.toString().padLeft(2, '0')}' : '选择日期',
+              style: TextStyle(fontSize: 14, color: hasDate ? colors.onSurface : colors.onSurface.withValues(alpha: 0.25))),
+            const Spacer(),
+            if (clearable && hasDate) GestureDetector(onTap: () => onChanged(null),
+              child: Icon(Icons.close, size: 14, color: colors.onSurface.withValues(alpha: 0.3))),
+          ]))),
+    ]);
+  }
+
+  void _showEditCoverOptions() {
+    final colors = Theme.of(context).colorScheme;
+    showModalBottomSheet(context: context, backgroundColor: colors.surface,
+      shape: const RoundedRectangleBorder(borderRadius: BorderRadius.vertical(top: Radius.circular(16))),
+      builder: (ctx) => SafeArea(child: Padding(padding: const EdgeInsets.symmetric(vertical: 16),
+        child: Column(mainAxisSize: MainAxisSize.min, children: [
+          Container(width: 40, height: 4, decoration: BoxDecoration(color: colors.outline, borderRadius: BorderRadius.circular(2))),
+          const SizedBox(height: 20),
+          Padding(padding: const EdgeInsets.symmetric(horizontal: 24), child: Align(alignment: Alignment.centerLeft,
+            child: Text('添加封面', style: TextStyle(fontSize: 18, fontWeight: FontWeight.w600, color: colors.onSurface)))),
+          const SizedBox(height: 16),
+          ListTile(leading: Icon(Icons.photo_library_outlined, color: colors.onSurface.withValues(alpha: 0.6)),
+            title: Text('从相册选择', style: TextStyle(color: colors.onSurface)),
+            onTap: () { Navigator.pop(ctx); _pickEditCover(); }),
+          ListTile(leading: Icon(Icons.link_outlined, color: colors.onSurface.withValues(alpha: 0.6)),
+            title: Text('网络链接', style: TextStyle(color: colors.onSurface)),
+            onTap: () { Navigator.pop(ctx); _pickEditCoverFromUrl(); }),
+        ]))));
+  }
+
+  Future<void> _pickEditCover() async {
+    try {
+      final XFile? picked = await _picker.pickImage(source: ImageSource.gallery, maxWidth: 800, maxHeight: 1200, imageQuality: 85);
+      if (picked == null) return;
+      final fileName = 'cover_${DateTime.now().millisecondsSinceEpoch}.jpg';
+      final targetPath = await ImagePathHelper.instance.getBookCoverPath(widget.book.id, fileName);
+      await ImagePathHelper.instance.ensureDirExists(p.dirname(targetPath));
+      await File(picked.path).copy(targetPath);
+      if (mounted) setState(() => _editCoverPath = targetPath);
+    } catch (e) {
+      if (mounted) ToastUtil.show(context, '选择封面失败: $e');
+    }
+  }
+
+  Future<void> _pickEditCoverFromUrl() async {
+    final urlCtrl = TextEditingController();
+    final confirmed = await showDialog<bool>(context: context, builder: (ctx) {
+      final colors = Theme.of(ctx).colorScheme;
+      return AlertDialog(backgroundColor: colors.surface, elevation: 0,
+        shape: RoundedRectangleBorder(borderRadius: BorderRadius.circular(12)),
+        title: Text('添加网络图片', style: TextStyle(fontSize: 18, fontWeight: FontWeight.w600, color: colors.onSurface)),
+        content: Column(mainAxisSize: MainAxisSize.min, crossAxisAlignment: CrossAxisAlignment.start, children: [
+          Text('请输入图片链接地址', style: TextStyle(fontSize: 14, color: colors.onSurface.withValues(alpha: 0.6))),
+          const SizedBox(height: 12),
+          TextField(controller: urlCtrl, keyboardType: TextInputType.url, style: TextStyle(fontSize: 14, color: colors.onSurface),
+            decoration: InputDecoration(hintText: 'https://example.com/image.jpg',
+              hintStyle: TextStyle(color: colors.onSurface.withValues(alpha: 0.25)),
+              filled: true, fillColor: colors.surfaceContainerHigh,
+              contentPadding: const EdgeInsets.symmetric(horizontal: 14, vertical: 12),
+              border: OutlineInputBorder(borderRadius: BorderRadius.circular(10), borderSide: BorderSide.none),
+              enabledBorder: OutlineInputBorder(borderRadius: BorderRadius.circular(10), borderSide: BorderSide.none),
+              focusedBorder: OutlineInputBorder(borderRadius: BorderRadius.circular(10), borderSide: BorderSide(color: colors.primary, width: 1)))),
+        ]),
+        actions: [
+          TextButton(onPressed: () => Navigator.pop(ctx, false), child: Text('取消', style: TextStyle(color: colors.onSurface.withValues(alpha: 0.6)))),
+          ElevatedButton(onPressed: () => Navigator.pop(ctx, true),
+            style: ElevatedButton.styleFrom(backgroundColor: colors.primary, foregroundColor: colors.onPrimary, elevation: 0,
+              shape: RoundedRectangleBorder(borderRadius: BorderRadius.circular(8)), padding: const EdgeInsets.symmetric(horizontal: 16, vertical: 8)),
+            child: const Text('确定')),
+        ]);
+    });
+    final url = urlCtrl.text.trim(); urlCtrl.dispose();
+    if (confirmed != true || url.isEmpty) return;
+    await _downloadEditCoverFromUrl(url);
+  }
+
+  Future<void> _downloadEditCoverFromUrl(String url) async {
+    setState(() => _editIsDownloading = true);
+    try {
+      final response = await http.get(Uri.parse(url), headers: {
+        'User-Agent': 'Mozilla/5.0 (iPhone; CPU iPhone OS 18_5 like Mac OS X) AppleWebKit/605.1.15',
+        'Accept': 'image/avif,image/webp,image/apng,*/*;q=0.8',
+        'Referer': Uri.parse(url).replace(path: '/').toString(),
+      });
+      if (response.statusCode != 200) throw Exception('下载失败: HTTP ${response.statusCode}');
+      final contentType = response.headers['content-type'];
+      if (contentType != null && !contentType.startsWith('image/')) throw Exception('链接返回的不是图片');
+      if (response.bodyBytes.length > 10 * 1024 * 1024) throw Exception('图片太大');
+      final fileName = 'cover_${DateTime.now().millisecondsSinceEpoch}.jpg';
+      final targetPath = await ImagePathHelper.instance.getBookCoverPath(widget.book.id, fileName);
+      await ImagePathHelper.instance.ensureDirExists(p.dirname(targetPath));
+      await File(targetPath).writeAsBytes(response.bodyBytes);
+      if (mounted) setState(() => _editCoverPath = targetPath);
+    } catch (e) {
+      if (mounted) ToastUtil.show(context, '下载失败: $e');
+    } finally {
+      if (mounted) setState(() => _editIsDownloading = false);
+    }
+  }
+
+  Future<void> _saveEdit() async {
+    if (!_editFormKey.currentState!.validate()) return;
+    try {
+      final rating = _ratingCtrl.text.isNotEmpty ? double.tryParse(_ratingCtrl.text) : null;
+      final updated = widget.book.copyWith(
+        title: _titleCtrl.text.trim(),
+        coverPath: _editCoverPath,
+        authors: _editAuthors,
+        translators: _editTranslators,
+        alternateTitles: _editAlternateTitles,
+        genres: _editGenres,
+        publisher: _publisherCtrl.text.trim().isNotEmpty ? _publisherCtrl.text.trim() : null,
+        isbn: _isbnCtrl.text.trim().isNotEmpty ? _isbnCtrl.text.trim() : null,
+        summary: _summaryCtrl.text.trim(),
+        rating: rating,
+        status: _editStatus,
+        publishDate: _editPublishDate,
+        startDate: _editStartDate,
+        finishDate: _editFinishDate,
+        updatedAt: DateTime.now(),
+      );
+      await context.read<AppProvider>().updateBook(updated);
+      if (!mounted) return;
+      ToastUtil.show(context, '更新成功');
+      setState(() => _isEditing = false);
+    } catch (e) {
+      if (mounted) ToastUtil.show(context, '保存失败: $e');
+    }
+  }
+
+  static List<String> _collectUnique(List<List<String>> lists) {
+    final s = <String>{};
+    for (final l in lists) { s.addAll(l); }
+    return s.toList()..sort();
+  }
+
   Widget _buildDesktopInfoRow(String label, String value, ColorScheme colors) {
     return Padding(
       padding: const EdgeInsets.symmetric(vertical: 6),
@@ -1678,3 +2117,15 @@ class _BookDetailPageState extends State<BookDetailPage> {
     );
   }
 }
+
+class _RatingInputFormatter extends TextInputFormatter {
+  @override
+  TextEditingValue formatEditUpdate(TextEditingValue oldValue, TextEditingValue newValue) {
+    final text = newValue.text;
+    if (text.isEmpty) return newValue;
+    if (!RegExp(r'^\d{0,2}\.?\d{0,1}$').hasMatch(text)) return oldValue;
+    final n = double.tryParse(text);
+    if (n != null && n > 10) return oldValue;
+    return newValue;
+  }
+}