unionflow-mobile-apps/lib/shared/design_system/components/union_export_button.dart

import 'package:flutter/material.dart';
import '../tokens/unionflow_colors.dart';

/// Type d'export disponible
enum ExportType {
  pdf('PDF', Icons.picture_as_pdf),
  excel('Excel', Icons.table_chart),
  csv('CSV', Icons.description);

  final String label;
  final IconData icon;
  const ExportType(this.label, this.icon);
}

/// Bouton d'export avec options
class UnionExportButton extends StatelessWidget {
  final Function(ExportType) onExport;
  final bool isLoading;

  const UnionExportButton({
    super.key,
    required this.onExport,
    this.isLoading = false,
  });

  @override
  Widget build(BuildContext context) {
    return PopupMenuButton<ExportType>(
      icon: Container(
        padding: const EdgeInsets.all(10),
        decoration: BoxDecoration(
          gradient: UnionFlowColors.primaryGradient,
          borderRadius: BorderRadius.circular(12),
          boxShadow: UnionFlowColors.greenGlowShadow,
        ),
        child: isLoading
            ? const SizedBox(
                width: 20,
                height: 20,
                child: CircularProgressIndicator(
                  strokeWidth: 2,
                  valueColor: AlwaysStoppedAnimation<Color>(Colors.white),
                ),
              )
            : const Icon(
                Icons.download,
                color: Colors.white,
                size: 20,
              ),
      ),
      itemBuilder: (context) => ExportType.values.map((type) {
        return PopupMenuItem<ExportType>(
          value: type,
          child: Row(
            children: [
              Icon(
                type.icon,
                size: 20,
                color: UnionFlowColors.unionGreen,
              ),
              const SizedBox(width: 12),
              Text(
                'Exporter en ${type.label}',
                style: const TextStyle(
                  fontSize: 13,
                  fontWeight: FontWeight.w600,
                  color: UnionFlowColors.textPrimary,
                ),
              ),
            ],
          ),
        );
      }).toList(),
      onSelected: onExport,
      shape: RoundedRectangleBorder(
        borderRadius: BorderRadius.circular(12),
      ),
      elevation: 8,
      color: UnionFlowColors.surface,
    );
  }
}

/// Dialog pour confirmer l'export
class ExportConfirmDialog extends StatelessWidget {
  final ExportType exportType;
  final VoidCallback onConfirm;
  final String? message;

  const ExportConfirmDialog({
    super.key,
    required this.exportType,
    required this.onConfirm,
    this.message,
  });

  @override
  Widget build(BuildContext context) {
    return AlertDialog(
      shape: RoundedRectangleBorder(
        borderRadius: BorderRadius.circular(20),
      ),
      backgroundColor: UnionFlowColors.surface,
      title: Row(
        children: [
          Container(
            padding: const EdgeInsets.all(10),
            decoration: BoxDecoration(
              color: UnionFlowColors.unionGreen.withOpacity(0.1),
              borderRadius: BorderRadius.circular(12),
            ),
            child: Icon(
              exportType.icon,
              color: UnionFlowColors.unionGreen,
              size: 24,
            ),
          ),
          const SizedBox(width: 12),
          Text(
            'Exporter en ${exportType.label}',
            style: const TextStyle(
              fontSize: 16,
              fontWeight: FontWeight.w700,
              color: UnionFlowColors.textPrimary,
            ),
          ),
        ],
      ),
      content: Text(
        message ?? 'Voulez-vous exporter le rapport au format ${exportType.label}?',
        style: const TextStyle(
          fontSize: 14,
          color: UnionFlowColors.textSecondary,
        ),
      ),
      actions: [
        TextButton(
          onPressed: () => Navigator.pop(context),
          child: const Text(
            'Annuler',
            style: TextStyle(
              color: UnionFlowColors.textSecondary,
              fontWeight: FontWeight.w600,
            ),
          ),
        ),
        ElevatedButton(
          onPressed: () {
            Navigator.pop(context);
            onConfirm();
          },
          style: ElevatedButton.styleFrom(
            backgroundColor: UnionFlowColors.unionGreen,
            foregroundColor: Colors.white,
            shape: RoundedRectangleBorder(
              borderRadius: BorderRadius.circular(12),
            ),
            elevation: 0,
          ),
          child: const Text(
            'Confirmer',
            style: TextStyle(fontWeight: FontWeight.w700),
          ),
        ),
      ],
    );
  }
}