import 'package:flutter/material.dart';
import '../core/app_colors.dart';
import '../core/app_theme.dart';

class EnterpriseStat {
  final String label;
  final String value;
  final IconData? icon;

  const EnterpriseStat({required this.label, required this.value, this.icon});
}

class EnterpriseHeader extends StatelessWidget {
  final String title;
  final String subtitle;
  final IconData icon;
  final Color color;
  final Color accent;
  final List<EnterpriseStat> stats;
  final Widget? trailing;

  const EnterpriseHeader({
    super.key,
    required this.title,
    required this.subtitle,
    required this.icon,
    required this.color,
    required this.accent,
    this.stats = const [],
    this.trailing,
  });

  @override
  Widget build(BuildContext context) {
    return Row(
      children: [
        for (var i = 0; i < stats.length; i++) ...[
          Expanded(
            child: _HeaderStat(
              stat: stats[i],
              color: i.isEven ? color : accent,
              accent: i.isEven ? accent : color,
            ),
          ),
          if (i != stats.length - 1) const SizedBox(width: 8),
        ],
      ],
    );
  }
}

class _HeaderStat extends StatelessWidget {
  final EnterpriseStat stat;
  final Color color;
  final Color accent;

  const _HeaderStat({
    required this.stat,
    required this.color,
    required this.accent,
  });

  @override
  Widget build(BuildContext context) {
    return Container(
      constraints: const BoxConstraints(minHeight: 54),
      padding: const EdgeInsets.symmetric(horizontal: 10, vertical: 9),
      decoration: BoxDecoration(
        gradient: LinearGradient(
          begin: Alignment.topLeft,
          end: Alignment.bottomRight,
          colors: [
            color.withValues(alpha: 0.10),
            accent.withValues(alpha: 0.06),
          ],
        ),
        borderRadius: BorderRadius.circular(10),
        border: Border.all(color: AppColors.borderLight, width: 1.1),
      ),
      child: Row(
        children: [
          if (stat.icon != null) ...[
            Icon(stat.icon, color: color, size: 16),
            const SizedBox(width: 6),
          ],
          Expanded(
            child: Column(
              crossAxisAlignment: CrossAxisAlignment.start,
              children: [
                Text(
                  stat.value,
                  maxLines: 1,
                  overflow: TextOverflow.ellipsis,
                  style: const TextStyle(
                    color: AppColors.textPrimary,
                    fontSize: 14,
                    fontWeight: FontWeight.w800,
                  ),
                ),
                const SizedBox(height: 2),
                Text(
                  stat.label,
                  maxLines: 1,
                  overflow: TextOverflow.ellipsis,
                  style: const TextStyle(
                    color: AppColors.textSecondary,
                    fontSize: 11,
                    fontWeight: FontWeight.w700,
                  ),
                ),
              ],
            ),
          ),
        ],
      ),
    );
  }
}

class EnterpriseSectionCard extends StatelessWidget {
  final String? title;
  final IconData? icon;
  final Color color;
  final Widget child;
  final EdgeInsetsGeometry padding;
  final Widget? trailing;

  const EnterpriseSectionCard({
    super.key,
    this.title,
    this.icon,
    required this.color,
    required this.child,
    this.trailing,
    this.padding = const EdgeInsets.all(16),
  });

  @override
  Widget build(BuildContext context) {
    return Container(
      padding: padding,
      decoration: BoxDecoration(
        color: Colors.white,
        borderRadius: BorderRadius.circular(16),
        border: Border.all(color: AppColors.border, width: 1.1),
        boxShadow: [AppTheme.shadowLight],
      ),
      child: Column(
        crossAxisAlignment: CrossAxisAlignment.start,
        children: [
          if (title != null) ...[
            Row(
              children: [
                if (icon != null) ...[
                  Container(
                    width: 34,
                    height: 34,
                    decoration: BoxDecoration(
                      color: color.withValues(alpha: 0.10),
                      borderRadius: BorderRadius.circular(10),
                    ),
                    child: Icon(icon, size: 19, color: color),
                  ),
                  const SizedBox(width: 10),
                ],
                Expanded(
                  child: Text(
                    title!,
                    maxLines: 1,
                    overflow: TextOverflow.ellipsis,
                    style: const TextStyle(
                      fontSize: 17,
                      fontWeight: FontWeight.w800,
                      color: AppColors.textPrimary,
                    ),
                  ),
                ),
                ?trailing,
              ],
            ),
            const SizedBox(height: 14),
          ],
          child,
        ],
      ),
    );
  }
}

class EnterpriseFab extends StatelessWidget {
  final VoidCallback onPressed;
  final IconData icon;
  final Color color;

  const EnterpriseFab({
    super.key,
    required this.onPressed,
    required this.icon,
    required this.color,
  });

  @override
  Widget build(BuildContext context) {
    return FloatingActionButton(
      onPressed: onPressed,
      backgroundColor: color,
      elevation: 0,
      shape: RoundedRectangleBorder(borderRadius: BorderRadius.circular(16)),
      child: Icon(icon, size: 26, color: Colors.white),
    );
  }
}