import 'package:flutter/material.dart';
import 'package:go_router/go_router.dart';
import '../../../../core/theme/design_tokens.dart';
import '../../../../shared/widgets/app_button.dart';

class LoginCodeScreen extends StatefulWidget {
  const LoginCodeScreen({super.key});

  @override
  State<LoginCodeScreen> createState() => _LoginCodeScreenState();
}

class _LoginCodeScreenState extends State<LoginCodeScreen> {
  final _codeController = TextEditingController();

  @override
  void dispose() {
    _codeController.dispose();
    super.dispose();
  }

  @override
  Widget build(BuildContext context) {
    return Scaffold(
      backgroundColor: AppColors.background,
      body: SafeArea(
        child: Padding(
          padding: const EdgeInsets.symmetric(horizontal: 24),
          child: Column(
            crossAxisAlignment: CrossAxisAlignment.center,
            children: [
              Expanded(
                child: Center(
                  child: Column(
                    mainAxisSize: MainAxisSize.min,
                    crossAxisAlignment: CrossAxisAlignment.center,
                    children: [
                      _buildAppIcon(),
                      const SizedBox(height: 24),
                      _buildAppTitle(),
                      const SizedBox(height: 32),
                      _buildFormContainer(),
                    ],
                  ),
                ),
              ),
              _buildFooter(),
              const SizedBox(height: 24),
            ],
          ),
        ),
      ),
    );
  }

  Widget _buildAppIcon() {
    return Container(
      width: 104,
      height: 104,
      decoration: BoxDecoration(
        color: AppColors.appIconRing,
        borderRadius: BorderRadius.circular(52),
        border: Border.all(color: AppColors.appIconBorder, width: 1),
      ),
      child: Center(
        child: ClipRRect(
          borderRadius: BorderRadius.circular(38),
          child: Image.asset(
            'assets/images/logo.png',
            width: 76,
            height: 76,
            fit: BoxFit.cover,
          ),
        ),
      ),
    );
  }

  Widget _buildAppTitle() {
    return const Text(
      'linksy',
      style: TextStyle(
        fontFamily: 'Playfair Display',
        fontSize: 34,
        fontWeight: FontWeight.w700,
        fontStyle: FontStyle.italic,
        color: AppColors.appTitle,
        letterSpacing: 0.5,
      ),
    );
  }

  Widget _buildFormContainer() {
    return SizedBox(
      width: 327,
      child: Column(
        crossAxisAlignment: CrossAxisAlignment.stretch,
        children: [
          Column(
            crossAxisAlignment: CrossAxisAlignment.start,
            children: [
              const Text(
                '邮箱验证码',
                style: TextStyle(
                  fontSize: 13,
                  fontWeight: FontWeight.w500,
                  color: Color(0xFF475569),
                ),
              ),
              const SizedBox(height: 6),
              Row(
                children: [
                  Expanded(
                    child: SizedBox(
                      height: 40,
                      child: TextField(
                        controller: _codeController,
                        keyboardType: TextInputType.number,
                        decoration: const InputDecoration(
                          hintText: '输入验证码',
                          contentPadding: EdgeInsets.symmetric(
                            horizontal: 12,
                            vertical: 10,
                          ),
                        ),
                      ),
                    ),
                  ),
                  const SizedBox(width: 8),
                  SizedBox(
                    width: 112,
                    height: 40,
                    child: OutlinedButton(
                      onPressed: () {},
                      style: OutlinedButton.styleFrom(
                        backgroundColor: AppColors.background,
                        side: const BorderSide(color: AppColors.input),
                        shape: RoundedRectangleBorder(
                          borderRadius: BorderRadius.circular(6),
                        ),
                      ),
                      child: const Text(
                        '发送验证码',
                        style: TextStyle(
                          fontSize: 13,
                          fontWeight: FontWeight.w500,
                          color: AppColors.slate500,
                        ),
                      ),
                    ),
                  ),
                ],
              ),
            ],
          ),
          const SizedBox(height: 12),
          AppButton(text: '登录', onPressed: () {}),
          const SizedBox(height: 12),
          AppButton(
            text: '使用密码登录',
            isOutlined: true,
            onPressed: () => context.pop(),
          ),
        ],
      ),
    );
  }

  Widget _buildFooter() {
    return GestureDetector(
      onTap: () => context.push('/register'),
      child: const Text(
        '还没有账号？去注册',
        style: TextStyle(
          fontSize: 14,
          fontWeight: FontWeight.w500,
          color: AppColors.slate500,
        ),
      ),
    );
  }
}
