import 'dart:io';

import 'package:flutter/material.dart';
import 'package:window_manager/window_manager.dart';

import 'agent.dart';
import 'setup/single_instance.dart';
import 'setup/url_scheme.dart';
import 'ui/app_shell.dart';
import 'ui/app_tray.dart';
import 'utils/file_log.dart';

/// 资安信插件助手（desktop-plugin）：桌面插件集成软件。
/// 当前内置插件：饭卡打印机（card-printer）；左侧菜单与插件页均由 lib/ui/routes.dart 驱动。
/// 关闭窗口 = 最小化到后台托盘，服务持续运行；退出入口在托盘菜单。
///
/// 健壮性铁律：runApp 之前的任何非关键步骤（托盘/scheme 注册/单实例）一律
/// try-catch 吞错并记日志——否则在目标机环境差异下抛异常会让界面永远起不来
/// （窗口由原生创建、Dart 未 runApp = 白屏窗口），开发机上无法复现。
Future<void> main(List<String> args) async {
  WidgetsFlutterBinding.ensureInitialized();

  // 文件日志最先初始化（此后的每一步现场都可追溯；目录不可用时自动禁用）
  FileLog.init();
  FileLog.write('==== 启动 ====');
  FileLog.write(
      '环境: ${Platform.operatingSystem} ${Platform.operatingSystemVersion} / exe: ${Platform.resolvedExecutable} / args: $args');

  String? bootWarning;
  try {
    await windowManager.ensureInitialized();
  } catch (e) {
    bootWarning = '窗口管理初始化失败：$e';
    FileLog.write(bootWarning);
  }

  // 单实例：zaxprint:// 唤起或重复双击会启动第二进程——通知常驻实例弹窗后自己退出
  bool isPrimary = true;
  try {
    isPrimary = await SingleInstance.acquire(
      onWake: () async {
        FileLog.write('收到唤醒（zaxprint:// 或重复双击）：显示主窗口');
        await windowManager.show();
        await windowManager.focus();
      },
    );
  } catch (e) {
    bootWarning = '${bootWarning == null ? "" : "$bootWarning\n"}单实例检测失败：$e';
    FileLog.write(bootWarning);
  }
  if (!isPrimary) {
    FileLog.write('已有常驻实例（唤醒通知已发），本进程退出');
    exit(0);
  }

  final agent = Agent(AgentOptions.parse(args));
  String? startError;
  try {
    await agent.start();
  } catch (e) {
    startError = '$e';
    agent.log.write('服务启动失败：$startError');
  }

  try {
    await UrlScheme.ensureRegistered(); // Windows 运行时注册 zaxprint://；mac 由 Info.plist 声明
  } catch (e) {
    agent.log.write('网页唤起协议注册失败（不影响其他功能）：$e');
  }

  final appTray = AppTray(agent: agent);
  try {
    await appTray.start();
  } catch (e) {
    agent.log.write('托盘初始化失败（不影响其他功能）：$e');
  }

  agent.log.write('界面启动（日志目录：${FileLog.dir ?? "不可用"}）');
  runApp(DesktopPluginApp(agent: agent, startError: startError ?? bootWarning));
}

class DesktopPluginApp extends StatelessWidget {
  const DesktopPluginApp({super.key, required this.agent, this.startError});

  final Agent agent;
  final String? startError;

  @override
  Widget build(BuildContext context) {
    return MaterialApp(
      title: '资安信插件助手',
      debugShowCheckedModeBanner: false,
      theme: _darkTheme(),
      home: AppShell(agent: agent, startError: startError),
    );
  }

  /// 深色运维风格（ui-ux-pro-max 设计系统：OLED 深底 + 运维三色语义）。
  ThemeData _darkTheme() {
    final base = ThemeData(brightness: Brightness.dark, useMaterial3: true);
    final scheme = base.colorScheme.copyWith(
      // 正常/主操作：operational green
      primary: const Color(0xFF4ADE80),
      onPrimary: const Color(0xFF052E16),
      primaryContainer: const Color(0xFF14532D),
      onPrimaryContainer: const Color(0xFFDCFCE7),
      // 故障红
      error: const Color(0xFFF87171),
      errorContainer: const Color(0xFF7F1D1D),
      onErrorContainer: const Color(0xFFFEE2E2),
      // 表面层级：#0F172A 底 / #111827 卡 / #1E293B 强调
      surface: const Color(0xFF0F172A),
      onSurface: const Color(0xFFF8FAFC),
      onSurfaceVariant: const Color(0xFFCBD5E1),
      surfaceContainerLow: const Color(0xFF111827),
      surfaceContainerHighest: const Color(0xFF1E293B),
      outlineVariant: const Color(0xFF334155),
    );
    return base.copyWith(
      colorScheme: scheme,
      scaffoldBackgroundColor: const Color(0xFF0F172A),
      cardTheme: const CardTheme(color: Color(0xFF111827)),
      snackBarTheme: const SnackBarThemeData(behavior: SnackBarBehavior.floating),
      dividerTheme: const DividerThemeData(color: Color(0xFF334155), thickness: 1),
    );
  }
}