import 'dart:io';
import 'package:flutter/material.dart';
import 'package:flutter_bloc/flutter_bloc.dart';
import 'package:image_picker/image_picker.dart';
import 'package:file_picker/file_picker.dart';
import 'package:flux/features/customers/blocs/customer_files_bloc.dart';

class MobileUploadScreen extends StatelessWidget {
  final String customerId;
  final String customerName;

  const MobileUploadScreen({
    super.key,
    required this.customerId,
    required this.customerName,
  });

  @override
  Widget build(BuildContext context) {
    return BlocListener<CustomerFilesBloc, CustomerFilesState>(
      listener: (context, state) {
        if (state.status == CustomerFilesStatus.success) {
          ScaffoldMessenger.of(
            context,
          ).showSnackBar(const SnackBar(content: Text("File caricato! ✅")));
        }
        if (state.status == CustomerFilesStatus.failure) {
          ScaffoldMessenger.of(
            context,
          ).showSnackBar(SnackBar(content: Text("Errore: ${state.error}")));
        }
      },
      child: Scaffold(
        appBar: AppBar(title: Text("Upload: $customerName")),
        body: Padding(
          padding: const EdgeInsets.all(24.0),
          child: Column(
            mainAxisAlignment: MainAxisAlignment.center,
            children: [
              _UploadButton(
                title: "SCATTA FOTO",
                icon: Icons.camera_alt_rounded,
                onTap: () => _handleCamera(context),
              ),
              const SizedBox(height: 20),
              _UploadButton(
                title: "CARICA DA MEMORIA",
                icon: Icons.file_present_rounded,
                onTap: () => _handleFilePicker(context),
                isSecondary: true,
              ),
            ],
          ),
        ),
      ),
    );
  }

  Future<void> _handleCamera(BuildContext context) async {
    final picker = ImagePicker();
    final photo = await picker.pickImage(
      source: ImageSource.camera,
      imageQuality: 80,
    );
    if (photo != null && context.mounted) {
      context.read<CustomerFilesBloc>().add(
        UploadCustomerFileEvent(photo: File(photo.path)),
      );
    }
  }

  Future<void> _handleFilePicker(BuildContext context) async {
    final result = await FilePicker.pickFiles(withData: true);
    if (result != null && context.mounted) {
      context.read<CustomerFilesBloc>().add(
        UploadCustomerFileEvent(pickedFile: result.files.first),
      );
    }
  }
}

class _UploadButton extends StatelessWidget {
  final String title;
  final IconData icon;
  final VoidCallback onTap;
  final bool isSecondary;

  const _UploadButton({
    required this.title,
    required this.icon,
    required this.onTap,
    this.isSecondary = false,
  });

  @override
  Widget build(BuildContext context) {
    return SizedBox(
      width: double.infinity,
      height: 80,
      child: ElevatedButton.icon(
        onPressed: onTap,
        icon: Icon(icon, size: 28),
        label: Text(
          title,
          style: const TextStyle(fontSize: 18, fontWeight: FontWeight.bold),
        ),
        style: ElevatedButton.styleFrom(
          backgroundColor: isSecondary ? Colors.grey[200] : null,
          foregroundColor: isSecondary ? Colors.black87 : null,
          shape: RoundedRectangleBorder(
            borderRadius: BorderRadius.circular(16),
          ),
        ),
      ),
    );
  }
}