feat: add Flutter mobile clients and staff delivery API
This commit is contained in:
david
225
apps/service_app/lib/ui/features/evidence/evidence_page.dart
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225
apps/service_app/lib/ui/features/evidence/evidence_page.dart
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import 'dart:io';
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import 'package:flutter/material.dart';
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import 'package:image_picker/image_picker.dart';
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import 'package:uuid/uuid.dart';
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import '../../../app/dependencies.dart';
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import '../../../data/offline/encrypted_draft_store.dart';
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import '../../../data/repositories/service_repository.dart';
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class EvidencePage extends StatefulWidget {
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const EvidencePage({
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required this.session,
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required this.repository,
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required this.drafts,
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required this.taskIdentity,
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super.key,
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});
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final StaffSession session;
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final ServiceRepository repository;
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final EncryptedDraftStore drafts;
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final String taskIdentity;
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@override
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State<EvidencePage> createState() => _EvidencePageState();
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}
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class _EvidencePageState extends State<EvidencePage> {
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final _picker = ImagePicker();
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final _result = TextEditingController();
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final Map<String, Map<String, Object?>> _evidence = {};
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bool _busy = false;
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String _conclusion = 'qualified';
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List<String> get _requiredStages => widget.session.roleCode == 'operations'
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? const ['inspection', 'signature']
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: const ['before', 'during', 'after', 'signature'];
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@override
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void initState() {
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super.initState();
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_restore();
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}
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Future<void> _restore() async {
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final draft = await widget.drafts.readDraft(widget.session.identity, widget.taskIdentity);
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if (draft == null || !mounted) return;
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final values = draft['evidence'];
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if (values is List) {
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for (final value in values.whereType<Map<Object?, Object?>>()) {
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final mapped = value.map<String, Object?>((key, item) => MapEntry(key.toString(), item));
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final stage = mapped['stage'] as String? ?? '';
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if (stage.isNotEmpty) _evidence[stage] = mapped;
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}
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}
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_result.text = draft['result'] as String? ?? '';
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_conclusion = draft['conclusion'] as String? ?? 'qualified';
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setState(() {});
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}
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Future<void> _capture(String stage) async {
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final image = await _picker.pickImage(
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source: ImageSource.camera,
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imageQuality: 82,
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maxWidth: 1800,
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);
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if (image == null) return;
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final sealedName = await widget.drafts.sealAttachment(
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accountIdentity: widget.session.identity,
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taskIdentity: widget.taskIdentity,
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stage: stage,
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sourcePath: image.path,
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);
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_evidence[stage] = {
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'stage': stage,
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'sealed_name': sealedName,
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'captured_at': DateTime.now().toUtc().toIso8601String(),
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'request_no': const Uuid().v7(),
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'media_type': stage == 'signature' ? 'signature' : 'image',
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};
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await _save();
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if (mounted) setState(() {});
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}
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Future<void> _save() => widget.drafts.saveDraft(
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accountIdentity: widget.session.identity,
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taskIdentity: widget.taskIdentity,
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value: {
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'task_identity': widget.taskIdentity,
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'result': _result.text,
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'conclusion': _conclusion,
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'updated_at': DateTime.now().toUtc().toIso8601String(),
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'evidence': _evidence.values.toList(),
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},
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);
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Future<void> _submit() async {
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if (!_requiredStages.every(_evidence.containsKey) || _result.text.trim().isEmpty) {
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ScaffoldMessenger.of(context).showSnackBar(const SnackBar(content: Text('请完成结果说明和全部必需取证项')));
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return;
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}
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setState(() => _busy = true);
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final temporaryFiles = <String>[];
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try {
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await _save();
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final inputs = <EvidenceInput>[];
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for (final item in _evidence.values) {
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final path = await widget.drafts.materializeAttachment(
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accountIdentity: widget.session.identity,
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sealedName: item['sealed_name'] as String,
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);
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temporaryFiles.add(path);
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inputs.add(
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EvidenceInput(
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evidenceType: item['stage'] as String,
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mediaType: item['media_type'] as String,
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filePath: path,
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capturedAt: DateTime.parse(item['captured_at'] as String),
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requestNo: item['request_no'] as String,
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),
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);
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}
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await widget.repository.submitTicketResult(
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identity: widget.taskIdentity,
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result: _result.text.trim(),
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conclusion: _conclusion,
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evidence: inputs,
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);
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await widget.drafts.deleteDraft(widget.session.identity, widget.taskIdentity);
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if (mounted) Navigator.pop(context, true);
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} catch (error) {
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if (mounted) {
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ScaffoldMessenger.of(context).showSnackBar(SnackBar(content: Text('提交失败，草稿仍安全保留：$error')));
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}
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} finally {
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for (final path in temporaryFiles) {
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final file = File(path);
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if (file.existsSync()) await file.delete();
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}
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if (mounted) setState(() => _busy = false);
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}
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}
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@override
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void dispose() {
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_result.dispose();
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super.dispose();
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}
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@override
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Widget build(BuildContext context) => Scaffold(
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appBar: AppBar(title: const Text('现场取证')),
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body: ListView(
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padding: const EdgeInsets.all(18),
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children: [
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const Card(
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child: Padding(
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padding: EdgeInsets.all(18),
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child: Row(
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children: [
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Icon(Icons.lock_outline),
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SizedBox(width: 12),
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Expanded(child: Text('照片与签名先按当前账号加密暂存；上传成功前仅显示“已暂存”。')),
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],
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),
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),
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),
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const SizedBox(height: 10),
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..._requiredStages.map(
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(stage) => Card(
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child: ListTile(
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leading: Icon(
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_evidence.containsKey(stage) ? Icons.check_circle : Icons.camera_alt_outlined,
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color: _evidence.containsKey(stage) ? Colors.green : null,
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),
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title: Text(_stageName(stage)),
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subtitle: Text(_evidence.containsKey(stage) ? '已加密暂存' : '尚未采集'),
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trailing: TextButton(
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onPressed: _busy ? null : () => _capture(stage),
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child: Text(_evidence.containsKey(stage) ? '重拍' : '拍摄'),
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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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TextField(
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controller: _result,
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maxLines: 4,
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onChanged: (_) => _save(),
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decoration: const InputDecoration(labelText: '现场结果说明'),
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),
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const SizedBox(height: 12),
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DropdownButtonFormField<String>(
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initialValue: _conclusion,
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decoration: const InputDecoration(labelText: '结论'),
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items: const [
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DropdownMenuItem(value: 'qualified', child: Text('合格')),
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DropdownMenuItem(value: 'noncompliant', child: Text('不合格')),
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DropdownMenuItem(value: 'high_risk', child: Text('高风险')),
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],
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onChanged: (value) {
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if (value == null) return;
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setState(() => _conclusion = value);
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_save();
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},
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),
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const SizedBox(height: 22),
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ElevatedButton(
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onPressed: _busy ? null : _submit,
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child: Text(_busy ? '正在上传并等待服务端确认…' : '在线提交结果'),
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),
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],
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),
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);
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String _stageName(String stage) => switch (stage) {
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'before' => '作业前照片',
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'during' => '作业中照片',
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'after' => '作业后照片',
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'inspection' => '检查现场照片',
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'signature' => '用户签名图片',
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_ => stage,
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};
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}
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