feat.Hatsune Miku

lib/pages/config_export_import_page.dart

@@ -0,0 +1,111 @@
+import 'dart:convert';
+
+import 'package:flutter/material.dart';
+import 'package:flutter/services.dart';
+
+import '../config/strings.dart';
+import '../config/title_server_config.dart';
+
+class ConfigExportImportPage extends StatelessWidget {
+  const ConfigExportImportPage({super.key});
+
+  Future<void> _exportConfig(BuildContext context) async {
+    final config = TitleServerConfigHolder().config;
+    if (config == null) {
+      if (context.mounted) {
+        ScaffoldMessenger.of(context).showSnackBar(
+          const SnackBar(content: Text(AppStrings.noConfigToExport)),
+        );
+      }
+      return;
+    }
+
+    final json = jsonEncode(config.toJson());
+    final base64 = base64Encode(utf8.encode(json));
+    await Clipboard.setData(ClipboardData(text: base64));
+
+    if (context.mounted) {
+      ScaffoldMessenger.of(context).showSnackBar(
+        const SnackBar(content: Text(AppStrings.exportSuccess)),
+      );
+    }
+  }
+
+  Future<void> _importConfig(BuildContext context) async {
+    final data = await Clipboard.getData(Clipboard.kTextPlain);
+    final text = data?.text;
+    if (text == null || text.isEmpty) {
+      if (context.mounted) {
+        ScaffoldMessenger.of(context).showSnackBar(
+          const SnackBar(content: Text(AppStrings.importFailed)),
+        );
+      }
+      return;
+    }
+
+    try {
+      final json = utf8.decode(base64Decode(text));
+      final map = jsonDecode(json) as Map<String, dynamic>;
+      final config = TitleServerConfig.fromJson(map);
+      await TitleServerConfigHolder().update(config);
+
+      if (context.mounted) {
+        ScaffoldMessenger.of(context).showSnackBar(
+          const SnackBar(content: Text(AppStrings.importSuccess)),
+        );
+      }
+    } catch (_) {
+      if (context.mounted) {
+        ScaffoldMessenger.of(context).showSnackBar(
+          const SnackBar(content: Text(AppStrings.importFailed)),
+        );
+      }
+    }
+  }
+
+  @override
+  Widget build(BuildContext context) {
+    return Scaffold(
+      appBar: AppBar(
+        title: const Text(AppStrings.configExportImport),
+      ),
+      body: Center(
+        child: Padding(
+          padding: const EdgeInsets.all(24),
+          child: ConstrainedBox(
+            constraints: const BoxConstraints(maxWidth: 400),
+            child: Column(
+              mainAxisSize: MainAxisSize.min,
+              crossAxisAlignment: CrossAxisAlignment.stretch,
+              children: [
+                FilledButton.icon(
+                  onPressed: () => _exportConfig(context),
+                  icon: const Icon(Icons.upload, size: 20),
+                  label: const Text(AppStrings.exportConfig),
+                  style: FilledButton.styleFrom(
+                    padding: const EdgeInsets.symmetric(vertical: 16),
+                    shape: RoundedRectangleBorder(
+                      borderRadius: BorderRadius.circular(12),
+                    ),
+                  ),
+                ),
+                const SizedBox(height: 16),
+                OutlinedButton.icon(
+                  onPressed: () => _importConfig(context),
+                  icon: const Icon(Icons.download, size: 20),
+                  label: const Text(AppStrings.importConfig),
+                  style: OutlinedButton.styleFrom(
+                    padding: const EdgeInsets.symmetric(vertical: 16),
+                    shape: RoundedRectangleBorder(
+                      borderRadius: BorderRadius.circular(12),
+                    ),
+                  ),
+                ),
+              ],
+            ),
+          ),
+        ),
+      ),
+    );
+  }
+}