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

class ServerAvatar extends StatelessWidget {
  final String name;
  final String iconUrl;
  final double size;
  final bool isActive;
  final bool showActiveBorder;


  final ServerAvatarShape shape;

  const ServerAvatar({
    super.key,
    required this.name,
    this.iconUrl = '',
    this.size = 38,
    this.isActive = false,
    this.showActiveBorder = false,
    this.shape = ServerAvatarShape.roundedSquare,
  });


  static const _avatarColors = [
    Color(0xFF6366F1),
    Color(0xFF3B82F6),
    Color(0xFF22C55E),
    Color(0xFFA855F7),
    Color(0xFFF97316),
    Color(0xFF14B8A6),
    Color(0xFFEC4899),
    Color(0xFF84CC16),
  ];


  static Color seedColorFor(String name) =>
      _avatarColors[name.hashCode.abs() % _avatarColors.length];

  @override
  Widget build(BuildContext context) {
    final color = seedColorFor(name);
    final initial = name.isNotEmpty ? name[0].toUpperCase() : '?';
    final hasIcon = iconUrl.isNotEmpty;

    final radius = shape == ServerAvatarShape.circle ? size / 2 : size * 0.26;

    final borderRadius = BorderRadius.circular(radius);

    final borderColor = showActiveBorder && isActive
        ? color.withValues(alpha: 0.55)
        : color.withValues(alpha: 0.25);

    return Container(
      width: size,
      height: size,
      decoration: BoxDecoration(
        color: hasIcon ? Colors.transparent : color.withValues(alpha: 0.15),
        borderRadius: borderRadius,
        border: Border.all(
          color: hasIcon ? Colors.transparent : borderColor,
          width: showActiveBorder && isActive ? 1.5 : 1,
        ),
      ),
      clipBehavior: Clip.antiAlias,
      child: hasIcon
          ? CachedNetworkImage(
              imageUrl: iconUrl,
              fit: BoxFit.contain,
              memCacheWidth: 128,
              fadeInDuration: const Duration(milliseconds: 180),
              placeholder: (_, _) => Center(
                child: Text(
                  initial,
                  style: TextStyle(
                    color: color,
                    fontWeight: FontWeight.w700,
                    fontSize: size * 0.42,
                  ),
                ),
              ),
              errorWidget: (_, _, _) => Center(
                child: Text(
                  initial,
                  style: TextStyle(
                    color: color,
                    fontWeight: FontWeight.w700,
                    fontSize: size * 0.42,
                  ),
                ),
              ),
            )
          : Center(
              child: Text(
                initial,
                style: TextStyle(
                  color: color,
                  fontWeight: FontWeight.w700,
                  fontSize: size * 0.42,
                ),
              ),
            ),
    );
  }
}

enum ServerAvatarShape { roundedSquare, circle }