import 'package:flutter/material.dart';

import '../brand/app_tokens.dart';

class CompanyLoadingView extends StatelessWidget {
  const CompanyLoadingView({super.key, this.label = '正在加载'});

  final String label;

  @override
  Widget build(BuildContext context) {
    return Center(
      child: Column(
        mainAxisSize: MainAxisSize.min,
        children: [
          const SizedBox(
            width: 24,
            height: 24,
            child: CircularProgressIndicator(strokeWidth: 2, color: AppColors.primary),
          ),
          const SizedBox(height: AppGap.x3),
          Text(label, style: const TextStyle(fontSize: AppFont.sub, color: AppColors.textSecondary)),
        ],
      ),
    );
  }
}

class CompanyEmptyView extends StatelessWidget {
  const CompanyEmptyView({
    super.key,
    required this.icon,
    required this.title,
    required this.subtitle,
  });

  final IconData icon;
  final String title;
  final String subtitle;

  @override
  Widget build(BuildContext context) {
    return Center(
      child: Padding(
        padding: const EdgeInsets.symmetric(horizontal: AppGap.x8),
        child: Column(
          mainAxisSize: MainAxisSize.min,
          children: [
            Icon(icon, size: 64, color: AppColors.divider),
            const SizedBox(height: AppGap.x4),
            Text(title, style: const TextStyle(fontSize: AppFont.body, color: AppColors.textPrimary)),
            const SizedBox(height: AppGap.x1),
            Text(
              subtitle,
              textAlign: TextAlign.center,
              style: const TextStyle(fontSize: AppFont.sub, color: AppColors.textSecondary),
            ),
          ],
        ),
      ),
    );
  }
}

class CompanyFailView extends StatelessWidget {
  const CompanyFailView({super.key, required this.onRetry, this.title = '加载失败'});

  final VoidCallback onRetry;
  final String title;

  @override
  Widget build(BuildContext context) {
    return Center(
      child: Padding(
        padding: const EdgeInsets.symmetric(horizontal: AppGap.x8),
        child: Column(
          mainAxisSize: MainAxisSize.min,
          children: [
            const Icon(Icons.chat_bubble_outline, size: 64, color: AppColors.divider),
            const SizedBox(height: AppGap.x4),
            Text(title, style: const TextStyle(fontSize: AppFont.body, color: AppColors.textPrimary)),
            const SizedBox(height: AppGap.x1),
            const Text(
              '检查一下网络，再点重试',
              style: TextStyle(fontSize: AppFont.sub, color: AppColors.textSecondary),
            ),
            const SizedBox(height: AppGap.x4),
            OutlinedButton(
              onPressed: onRetry,
              style: OutlinedButton.styleFrom(
                minimumSize: const Size(96, 36),
                side: const BorderSide(color: AppColors.textSecondary, width: 0.5),
                foregroundColor: AppColors.textPrimary,
                shape: RoundedRectangleBorder(borderRadius: BorderRadius.circular(AppRadius.control)),
              ),
              child: const Text('重试', style: TextStyle(fontSize: AppFont.body)),
            ),
          ],
        ),
      ),
    );
  }
}

class CompanyOfflineBanner extends StatelessWidget {
  const CompanyOfflineBanner({super.key});

  @override
  Widget build(BuildContext context) {
    return Container(
      height: 36,
      color: AppColors.bannerBg,
      padding: const EdgeInsets.symmetric(horizontal: AppGap.x4),
      child: const Row(
        children: [
          Icon(Icons.info_outline, size: 16, color: Colors.white),
          SizedBox(width: AppGap.x2),
          Expanded(
            child: Text(
              '当前网络不可用，请检查网络连接',
              style: TextStyle(fontSize: AppFont.sub, color: Colors.white),
            ),
          ),
        ],
      ),
    );
  }
}