refactor: split registration page into focused parts

lib/pages/registration/parts/registration_submit_part.dart

@@ -0,0 +1,317 @@
+// ignore_for_file: invalid_use_of_protected_member
+
+part of '../../registration_page.dart';
+
+extension _RegistrationSubmitPart on _RegistrationPageState {
+  Future<void> _submit() async {
+    if (!_canSubmit) return;
+
+    final baseUrl = await _baseUrl();
+    if (baseUrl == null) {
+      _feedbackService.trigger(FeedbackEvent.submitFailure);
+      _showStatusOverride(
+        '未配置 API 地址，请前往设置',
+        StatusDotColor.red,
+        const Duration(seconds: 2),
+      );
+      return;
+    }
+
+    setState(() => _isSubmitting = true);
+
+    // For transit target: block if any scanned item already has a location
+    if (_isTransitTarget) {
+      if (_hasAnyLocatedInScanned()) {
+        final onShelfItems = _findOnShelfItemsInScanned();
+        final transferredItems = _findTransferredItemsInScanned();
+        setState(() => _isSubmitting = false);
+        _feedbackService.trigger(FeedbackEvent.submitFailure);
+        _showLocationConflictDialog(
+          onShelfItems: onShelfItems,
+          transferredItems: transferredItems,
+        );
+        return;
+      }
+    }
+
+    if (_mode == RegistrationMode.multiCode && _zongpaiNos.length > 1) {
+      if (_isTransitTarget && !await _ensureBatchSamePaicha(baseUrl)) {
+        if (!mounted) return;
+        setState(() => _isSubmitting = false);
+        _feedbackService.trigger(FeedbackEvent.submitFailure);
+        _showStatusOverride(
+          batchPaichaMismatchMessage,
+          StatusDotColor.red,
+          const Duration(seconds: 2),
+        );
+        return;
+      }
+      // Pre-check: block entire batch if any item already has a location binding
+      if (!_isTransitTarget) {
+        final onShelfItems = _findOnShelfItemsInScanned();
+        final transferredItems = _findTransferredItemsInScanned();
+        if (onShelfItems.isNotEmpty || transferredItems.isNotEmpty) {
+          setState(() => _isSubmitting = false);
+          _feedbackService.trigger(FeedbackEvent.duplicateError);
+          _showLocationConflictDialog(
+            onShelfItems: onShelfItems,
+            transferredItems: transferredItems,
+          );
+          return;
+        }
+      }
+      await _submitBatch(baseUrl);
+    } else {
+      await _submitOne(baseUrl, _zongpaiNos.first);
+    }
+  }
+
+  Future<bool> _ensureBatchSamePaicha(String baseUrl) async {
+    final paichaByCode = <String, String>{};
+    final cachedOverview = _overview;
+    if (cachedOverview?.success == true && cachedOverview!.paichaNo != null) {
+      for (final item in cachedOverview.items) {
+        paichaByCode[item.zongpaiNo] = cachedOverview.paichaNo!;
+      }
+    }
+
+    for (final zongpaiNo in _zongpaiNos) {
+      if (paichaByCode.containsKey(zongpaiNo)) continue;
+      final result = await _apiService.fetchPaichaOverview(
+        baseUrl: baseUrl,
+        zongpaiNo: zongpaiNo,
+      );
+      if (!result.success || result.paichaNo == null) {
+        return false;
+      }
+      for (final item in result.items) {
+        paichaByCode[item.zongpaiNo] = result.paichaNo!;
+      }
+    }
+
+    return allSamePaicha(_zongpaiNos.map((code) => paichaByCode[code]));
+  }
+
+  Future<void> _submitOne(String baseUrl, String zongpaiNo) async {
+    final result = await _apiService.registerLocation(
+      baseUrl: baseUrl,
+      zongpaiNo: zongpaiNo,
+      locationCode: _locationCode!,
+    );
+
+    if (!mounted) return;
+
+    setState(() => _isSubmitting = false);
+
+    if (result.success) {
+      _feedbackService.trigger(FeedbackEvent.submitSuccess);
+      if (_isTransitTarget) {
+        setState(() => _isSubmitting = false);
+        await _navigateToBoxing(
+          mode: BoxingMode.singleCode,
+          codes: [zongpaiNo],
+          codesToClear: [zongpaiNo],
+          clearLocation: _mode == RegistrationMode.singleCode,
+        );
+        return;
+      }
+      setState(() {
+        _zongpaiNos.remove(zongpaiNo);
+        if (_mode == RegistrationMode.singleCode) {
+          _locationCode = null;
+          _locationType = null;
+        }
+      });
+      final msg = result.isOffShelfSuccess
+          ? '下架成功'
+          : (_mode == RegistrationMode.multiCode ? '多码上架模式，请扫描下一张执行卡' : '上架成功');
+      _showStatusOverride(
+        msg,
+        StatusDotColor.green,
+        const Duration(milliseconds: 1500),
+      );
+      await _refreshCurrentOverview();
+    } else if (result.isDuplicate) {
+      _feedbackService.trigger(FeedbackEvent.duplicateError);
+      _showDuplicateDialog(zongpaiNo, result.duplicateInfo);
+    } else if (result.isAlreadyOffShelf) {
+      _feedbackService.trigger(FeedbackEvent.submitFailure);
+      _showStatusOverride(
+        result.errorMessage ?? '该总排号已下架至转运区域，不可重新上架',
+        StatusDotColor.red,
+        const Duration(seconds: 2),
+      );
+    } else {
+      final isNetwork = result.errorMessage == '网络异常，请检查网络连接';
+      _feedbackService.trigger(
+        isNetwork ? FeedbackEvent.networkError : FeedbackEvent.submitFailure,
+      );
+      _showStatusOverride(
+        result.errorMessage ?? '提交失败',
+        isNetwork ? StatusDotColor.yellow : StatusDotColor.red,
+        const Duration(seconds: 2),
+      );
+    }
+  }
+
+  Future<void> _submitBatch(String baseUrl) async {
+    int successCount = 0;
+    int offShelfCount = 0;
+    final failed = <String>[];
+    final toRemove = <String>[];
+    final transitCodes = <String>[];
+
+    for (final zongpaiNo in List.of(_zongpaiNos)) {
+      final result = await _apiService.registerLocation(
+        baseUrl: baseUrl,
+        zongpaiNo: zongpaiNo,
+        locationCode: _locationCode!,
+      );
+      if (result.success) {
+        successCount++;
+        if (result.isOffShelfSuccess) {
+          offShelfCount++;
+        }
+        toRemove.add(zongpaiNo);
+        if (_isTransitTarget) {
+          transitCodes.add(zongpaiNo);
+        }
+      } else {
+        failed.add(zongpaiNo);
+        if (result.isDuplicate) {
+          if (_isTransitTarget && transitCodes.isNotEmpty) {
+            setState(() {
+              _zongpaiNos.removeWhere((item) => toRemove.contains(item));
+              _isSubmitting = false;
+            });
+            await _navigateToBoxing(
+              mode: BoxingMode.multiCode,
+              codes: transitCodes,
+              codesToClear: toRemove,
+              clearLocation: false,
+              returnMessage: '成功 $successCount 条，失败 ${failed.length} 条',
+            );
+            return;
+          }
+          setState(() {
+            _zongpaiNos.removeWhere((item) => toRemove.contains(item));
+            _isSubmitting = false;
+          });
+          _feedbackService.trigger(FeedbackEvent.duplicateError);
+          _showDuplicateDialog(zongpaiNo, result.duplicateInfo);
+          return;
+        }
+        if (result.isAlreadyOffShelf) {
+          if (_isTransitTarget && transitCodes.isNotEmpty) {
+            setState(() {
+              _zongpaiNos.removeWhere((item) => toRemove.contains(item));
+              _isSubmitting = false;
+            });
+            await _navigateToBoxing(
+              mode: BoxingMode.multiCode,
+              codes: transitCodes,
+              codesToClear: toRemove,
+              clearLocation: false,
+              returnMessage: '成功 $successCount 条，失败 ${failed.length} 条',
+            );
+            return;
+          }
+          setState(() {
+            _zongpaiNos.removeWhere((item) => toRemove.contains(item));
+            _isSubmitting = false;
+          });
+          _feedbackService.trigger(FeedbackEvent.submitFailure);
+          _showStatusOverride(
+            result.errorMessage ?? '该总排号已下架至转运区域，不可重新上架',
+            StatusDotColor.red,
+            const Duration(seconds: 2),
+          );
+          return;
+        }
+      }
+    }
+
+    if (!mounted) return;
+
+    setState(() {
+      _zongpaiNos.removeWhere((item) => toRemove.contains(item));
+      _isSubmitting = false;
+    });
+
+    if (_isTransitTarget && transitCodes.isNotEmpty) {
+      await _navigateToBoxing(
+        mode: BoxingMode.multiCode,
+        codes: transitCodes,
+        codesToClear: toRemove,
+        clearLocation: failed.isEmpty,
+        returnMessage: failed.isEmpty
+            ? null
+            : '成功 $successCount 条，失败 ${failed.length} 条',
+      );
+      return;
+    }
+
+    if (failed.isEmpty) {
+      _feedbackService.trigger(FeedbackEvent.submitSuccess);
+      final msg = offShelfCount == successCount
+          ? '批量下架成功（$successCount 条）'
+          : '批量上架成功（$successCount 条）';
+      _showStatusOverride(
+        msg,
+        StatusDotColor.green,
+        const Duration(milliseconds: 1500),
+      );
+      await _refreshCurrentOverview();
+    } else {
+      _feedbackService.trigger(FeedbackEvent.submitFailure);
+      _showStatusOverride(
+        '成功 $successCount 条，失败 ${failed.length} 条',
+        StatusDotColor.red,
+        const Duration(seconds: 2),
+      );
+    }
+  }
+
+  Future<void> _navigateToBoxing({
+    required BoxingMode mode,
+    required List<String> codes,
+    required List<String> codesToClear,
+    required bool clearLocation,
+    String? returnMessage,
+  }) async {
+    await _refreshCurrentOverview();
+    if (!mounted) return;
+    final navigator = Navigator.of(context);
+    await _stopScanListening();
+    await navigator.push(
+      MaterialPageRoute(
+        builder: (_) => BoxingPage(
+          arguments: BoxingPageArguments(
+            initialMode: mode,
+            autoScanCodes: codes,
+          ),
+        ),
+      ),
+    );
+    if (!mounted) return;
+    await Future<void>.delayed(const Duration(milliseconds: 120));
+    if (!mounted) return;
+    _restartScanListening();
+    setState(() {
+      _zongpaiNos.removeWhere((item) => codesToClear.contains(item));
+      if (clearLocation) {
+        _locationCode = null;
+        _locationType = null;
+      }
+    });
+    await _refreshCurrentOverview();
+    if (!mounted) return;
+    if (returnMessage != null) {
+      _showStatusOverride(
+        returnMessage,
+        StatusDotColor.red,
+        const Duration(seconds: 2),
+      );
+    }
+  }
+}