import 'package:flutter/material.dart';

import '../l10n/app_localizations.dart';

/// 登录页（桩）。
///
/// Task 3 实现：真实登录、错误本地化（含 AUTH_RATE_LIMITED / 429 重试等待）、
/// 会话持久化与退出登录。
class LoginPage extends StatelessWidget {
  const LoginPage({super.key});

  @override
  Widget build(BuildContext context) {
    final l10n = AppLocalizations.of(context);
    return Scaffold(
      appBar: AppBar(title: Text(l10n.appName)),
      body: Center(
        child: ConstrainedBox(
          constraints: const BoxConstraints(maxWidth: 420),
          child: Padding(
            padding: const EdgeInsets.all(24),
            child: Column(
              mainAxisAlignment: MainAxisAlignment.center,
              crossAxisAlignment: CrossAxisAlignment.stretch,
              children: [
                TextField(
                  decoration: InputDecoration(
                    labelText: l10n.username,
                    border: const OutlineInputBorder(),
                  ),
                ),
                const SizedBox(height: 16),
                TextField(
                  obscureText: true,
                  enableSuggestions: false,
                  autocorrect: false,
                  decoration: InputDecoration(
                    labelText: l10n.password,
                    border: const OutlineInputBorder(),
                  ),
                ),
                const SizedBox(height: 24),
                FilledButton(
                  // 桩：直接进入主壳；Task 3 接真实认证。
                  onPressed: () =>
                      Navigator.of(context).pushReplacementNamed('/home'),
                  child: Text(l10n.login),
                ),
                const SizedBox(height: 12),
                Text(
                  l10n.loginHint,
                  textAlign: TextAlign.center,
                  style: Theme.of(context).textTheme.bodySmall,
                ),
              ],
            ),
          ),
        ),
      ),
    );
  }
}