456 lines
14 KiB
Dart
456 lines
14 KiB
Dart
import 'dart:async';
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import 'package:flutter/foundation.dart';
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import 'package:flutter/material.dart';
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import '../../../app/theme/brand_assets.dart';
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import '../../chat/application/review_chat_controller.dart';
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import '../../chat/domain/review_chat_context.dart';
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import '../../chat/presentation/review_chat_screen.dart';
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import '../../contracts/presentation/contract_template_list_screen.dart';
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import '../../documents/presentation/legal_document_type_list_screen.dart';
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class ToolsHubScreen extends StatefulWidget {
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const ToolsHubScreen({
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super.key,
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this.controller,
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});
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final ReviewChatController? controller;
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@override
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State<ToolsHubScreen> createState() => _ToolsHubScreenState();
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}
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class _ToolsHubScreenState extends State<ToolsHubScreen> {
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late final ReviewChatController _chatController;
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late final bool _ownsController;
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@override
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void initState() {
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super.initState();
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_chatController = widget.controller ?? ReviewChatController();
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_ownsController = widget.controller == null;
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}
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@override
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void dispose() {
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if (_ownsController) {
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_chatController.dispose();
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}
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super.dispose();
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}
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Future<void> _openContractsWorkspace(BuildContext context) async {
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await Navigator.of(context).push(
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MaterialPageRoute<void>(
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builder: (_) => const ContractTemplateListScreen(),
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),
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);
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}
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Future<void> _openDocumentsWorkspace(BuildContext context) async {
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await Navigator.of(context).push(
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MaterialPageRoute<void>(
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builder: (_) => const LegalDocumentTypeListScreen(),
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),
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);
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}
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Future<void> _sendBusinessPrompt(ReviewChatQuickPrompt prompt) async {
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await _chatController.sendMessage(message: prompt.prompt);
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final error = _chatController.errorMessage.value;
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if (!mounted || error == null || error.isEmpty) {
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return;
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}
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ScaffoldMessenger.of(context).showSnackBar(
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SnackBar(content: Text(error)),
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);
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}
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@override
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Widget build(BuildContext context) {
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return LayoutBuilder(
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builder: (context, constraints) {
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final isCompact = constraints.maxHeight < 820;
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return Column(
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children: [
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Padding(
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padding: const EdgeInsets.fromLTRB(16, 16, 16, 8),
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child: _ToolsHeader(
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isCompact: isCompact,
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onOpenContracts: () => _openContractsWorkspace(context),
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onOpenDocuments: () => _openDocumentsWorkspace(context),
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businessPrompts: buildBusinessAuxiliaryQuickPrompts(),
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isSendingListenable: _chatController.isSending,
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onRunBusinessPrompt: _sendBusinessPrompt,
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),
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),
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Expanded(
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child: ReviewChatScreen(
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key: const ValueKey('tools-hub-legal-chat'),
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embedded: true,
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showBusinessAuxiliaryPrompts: false,
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controller: _chatController,
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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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class _ToolsHeader extends StatelessWidget {
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const _ToolsHeader({
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required this.isCompact,
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required this.onOpenContracts,
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required this.onOpenDocuments,
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required this.businessPrompts,
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required this.isSendingListenable,
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required this.onRunBusinessPrompt,
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});
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final bool isCompact;
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final Future<void> Function() onOpenContracts;
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final Future<void> Function() onOpenDocuments;
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final List<ReviewChatQuickPrompt> businessPrompts;
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final ValueListenable<bool> isSendingListenable;
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final Future<void> Function(ReviewChatQuickPrompt prompt) onRunBusinessPrompt;
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@override
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Widget build(BuildContext context) {
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return Container(
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width: double.infinity,
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padding: EdgeInsets.all(isCompact ? 16 : 20),
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decoration: BoxDecoration(
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gradient: BrandAssets.surfaceGradient,
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borderRadius: BorderRadius.circular(BrandAssets.radius),
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border: Border.all(color: Colors.white.withValues(alpha: 0.86)),
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boxShadow: const <BoxShadow>[BrandAssets.cardShadow],
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),
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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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crossAxisAlignment: CrossAxisAlignment.start,
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children: [
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BrandMark(size: isCompact ? 40 : 48),
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const SizedBox(width: 12),
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Expanded(
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child: Column(
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crossAxisAlignment: CrossAxisAlignment.start,
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children: [
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Text(
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'AI工具',
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style: Theme.of(context).textTheme.titleMedium?.copyWith(
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color: BrandAssets.ink,
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),
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),
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const SizedBox(height: 4),
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Text(
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'把法律问答留在当前页继续追问，把合同生成和文书起草切到独立工作台处理。',
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style: Theme.of(context).textTheme.bodySmall,
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),
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],
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),
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),
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const BrandChip(
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label: 'Tools',
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color: BrandAssets.primaryDark,
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),
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],
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),
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if (!isCompact) ...[
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const SizedBox(height: 16),
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_ToolLaunchTile(
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icon: Icons.gavel_outlined,
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title: '法律问答',
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subtitle: '适合围绕条款风险、谈判策略和依据来源继续追问。',
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actionLabel: '当前页继续',
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onPressed: null,
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emphasis: _ToolLaunchEmphasis.passive,
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),
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],
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const SizedBox(height: 12),
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_BusinessAuxiliaryLaunchStrip(
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isCompact: isCompact,
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prompts: businessPrompts,
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isSendingListenable: isSendingListenable,
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onRunBusinessPrompt: onRunBusinessPrompt,
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),
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const SizedBox(height: 12),
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_WorkspaceLaunchRow(
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onOpenContracts: onOpenContracts,
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onOpenDocuments: onOpenDocuments,
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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 _BusinessAuxiliaryLaunchStrip extends StatelessWidget {
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const _BusinessAuxiliaryLaunchStrip({
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required this.isCompact,
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required this.prompts,
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required this.isSendingListenable,
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required this.onRunBusinessPrompt,
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});
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final bool isCompact;
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final List<ReviewChatQuickPrompt> prompts;
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final ValueListenable<bool> isSendingListenable;
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final Future<void> Function(ReviewChatQuickPrompt prompt) onRunBusinessPrompt;
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@override
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Widget build(BuildContext context) {
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return ValueListenableBuilder<bool>(
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valueListenable: isSendingListenable,
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builder: (context, isSending, _) {
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return Container(
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width: double.infinity,
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padding: EdgeInsets.all(isCompact ? 12 : 14),
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decoration: BoxDecoration(
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color: Colors.white.withValues(alpha: 0.56),
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borderRadius: BorderRadius.circular(BrandAssets.radius),
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border: Border.all(color: BrandAssets.line),
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),
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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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crossAxisAlignment: CrossAxisAlignment.start,
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children: [
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Container(
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width: 40,
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height: 40,
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decoration: BoxDecoration(
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color: BrandAssets.accentAmber.withValues(alpha: 0.12),
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borderRadius: BorderRadius.circular(BrandAssets.radius),
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),
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child: const Icon(
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Icons.auto_awesome_outlined,
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color: BrandAssets.accentAmber,
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),
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),
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const SizedBox(width: 12),
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Expanded(
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child: Column(
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crossAxisAlignment: CrossAxisAlignment.start,
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children: [
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Text(
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'业务辅助',
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style:
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Theme.of(context).textTheme.titleSmall?.copyWith(
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color: BrandAssets.ink,
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),
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),
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const SizedBox(height: 4),
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Text(
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'从这里直接发起履约义务提取、工商备案材料、谈判策略和法律意见边界问答。',
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style: Theme.of(context).textTheme.bodySmall,
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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: 12),
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Wrap(
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spacing: 10,
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runSpacing: 10,
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children: [
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for (var index = 0; index < prompts.length; index++)
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_BusinessAuxiliaryButton(
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prompt: prompts[index],
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icon: _businessPromptIcon(index),
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isSending: isSending,
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onPressed: () => onRunBusinessPrompt(prompts[index]),
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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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}
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}
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class _BusinessAuxiliaryButton extends StatelessWidget {
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const _BusinessAuxiliaryButton({
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required this.prompt,
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required this.icon,
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required this.isSending,
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required this.onPressed,
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});
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final ReviewChatQuickPrompt prompt;
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final IconData icon;
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final bool isSending;
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final Future<void> Function() onPressed;
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@override
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Widget build(BuildContext context) {
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return Tooltip(
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message: prompt.prompt,
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child: OutlinedButton.icon(
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onPressed: isSending ? null : () => unawaited(onPressed()),
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icon: Icon(icon, size: 18),
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label: Text(prompt.label),
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),
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);
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}
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}
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IconData _businessPromptIcon(int index) {
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switch (index) {
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case 0:
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return Icons.checklist_outlined;
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case 1:
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return Icons.folder_open_outlined;
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case 2:
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return Icons.handshake_outlined;
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default:
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return Icons.gavel_outlined;
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}
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}
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enum _ToolLaunchEmphasis {
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primary,
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passive,
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}
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class _ToolLaunchTile extends StatelessWidget {
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const _ToolLaunchTile({
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required this.icon,
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required this.title,
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required this.subtitle,
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required this.actionLabel,
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required this.emphasis,
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this.onPressed,
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});
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final IconData icon;
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final String title;
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final String subtitle;
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final String actionLabel;
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final Future<void> Function()? onPressed;
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final _ToolLaunchEmphasis emphasis;
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@override
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Widget build(BuildContext context) {
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final isPrimary = emphasis == _ToolLaunchEmphasis.primary;
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return Container(
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padding: const EdgeInsets.all(16),
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decoration: BoxDecoration(
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color: isPrimary ? BrandAssets.surfaceInk : BrandAssets.surface,
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borderRadius: BorderRadius.circular(BrandAssets.radius),
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border: Border.all(
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color: isPrimary ? Colors.transparent : BrandAssets.line,
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),
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boxShadow:
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isPrimary ? const <BoxShadow>[BrandAssets.panelShadow] : null,
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),
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child: Row(
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crossAxisAlignment: CrossAxisAlignment.start,
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children: [
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Container(
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width: 40,
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height: 40,
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decoration: BoxDecoration(
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color: isPrimary
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? Colors.white.withValues(alpha: 0.1)
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: BrandAssets.accentCyan.withValues(alpha: 0.1),
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borderRadius: BorderRadius.circular(BrandAssets.radius),
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),
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child: Icon(
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icon,
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color:
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isPrimary ? BrandAssets.accentLime : BrandAssets.accentCyan,
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),
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),
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const SizedBox(width: 12),
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Expanded(
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child: Column(
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crossAxisAlignment: CrossAxisAlignment.start,
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children: [
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Text(
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title,
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style: Theme.of(context).textTheme.titleSmall?.copyWith(
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color: isPrimary ? Colors.white : BrandAssets.ink,
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),
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),
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const SizedBox(height: 4),
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Text(
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subtitle,
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style: Theme.of(context).textTheme.bodySmall?.copyWith(
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color: isPrimary
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? Colors.white.withValues(alpha: 0.72)
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: BrandAssets.muted,
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),
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),
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const SizedBox(height: 12),
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if (onPressed == null)
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Text(
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actionLabel,
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style: Theme.of(context).textTheme.labelMedium?.copyWith(
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color: isPrimary
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? BrandAssets.accentLime
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: Theme.of(context).colorScheme.primary,
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),
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)
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else
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FilledButton.icon(
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onPressed: () => unawaited(onPressed!.call()),
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icon: const Icon(Icons.open_in_new, size: 18),
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label: Text(actionLabel),
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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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}
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class _WorkspaceLaunchRow extends StatelessWidget {
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const _WorkspaceLaunchRow({
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required this.onOpenContracts,
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required this.onOpenDocuments,
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});
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final Future<void> Function() onOpenContracts;
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final Future<void> Function() onOpenDocuments;
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@override
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Widget build(BuildContext context) {
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return Wrap(
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spacing: 12,
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runSpacing: 12,
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children: [
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Tooltip(
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message: 'open-contracts-workspace',
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child: FilledButton.icon(
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onPressed: () => unawaited(onOpenContracts()),
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icon: const Icon(Icons.edit_note_outlined),
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label: const Text('打开合同工作台'),
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),
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),
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Tooltip(
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message: 'open-documents-workspace',
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child: OutlinedButton.icon(
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onPressed: () => unawaited(onOpenDocuments()),
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icon: const Icon(Icons.post_add_outlined),
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label: const Text('打开文书工作台'),
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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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