import 'package:flutter/material.dart';
import 'package:sales_chat/theme/app_theme.dart';

class LoadingWidget extends StatelessWidget {
  final String? message;
  final double size;

  const LoadingWidget({
    super.key,
    this.message,
    this.size = 40,
  });

  @override
  Widget build(BuildContext context) {
    return Center(
      child: Column(
        mainAxisSize: MainAxisSize.min,
        children: [
          SizedBox(
            width: size,
            height: size,
            child: CircularProgressIndicator(
              strokeWidth: 3,
              valueColor: AlwaysStoppedAnimation<Color>(AppTheme.primaryColor),
            ),
          ),
          if (message != null) ...[
            const SizedBox(height: 16),
            Text(
              message!,
              style: TextStyle(
                color: AppTheme.textSecondary,
                fontSize: 14,
              ),
            ),
          ],
        ],
      ),
    );
  }
}

class LoadingOverlay extends StatelessWidget {
  final bool isLoading;
  final Widget child;
  final String? message;

  const LoadingOverlay({
    super.key,
    required this.isLoading,
    required this.child,
    this.message,
  });

  @override
  Widget build(BuildContext context) {
    return Stack(
      children: [
        child,
        if (isLoading)
          Container(
            color: Colors.black.withOpacity(0.3),
            child: Center(
              child: Container(
                padding: const EdgeInsets.all(24),
                decoration: BoxDecoration(
                  color: Colors.white,
                  borderRadius: BorderRadius.circular(12),
                ),
                child: Column(
                  mainAxisSize: MainAxisSize.min,
                  children: [
                    const CircularProgressIndicator(),
                    if (message != null) ...[
                      const SizedBox(height: 16),
                      Text(message!),
                    ],
                  ],
                ),
              ),
            ),
          ),
      ],
    );
  }
}