import 'package:flutter/material.dart';
import 'package:intl/intl.dart'; // For date formatting

import '../models/transaction_record.dart'; // Use the model class

class TransactionListItem extends StatelessWidget {
  final TransactionRecord transaction; // Use the model class
  final VoidCallback? onEdit; // Callback for edit action
  final VoidCallback? onDelete; // Callback for delete action

  const TransactionListItem({
    Key? key,
    required this.transaction,
    this.onEdit, // Make callbacks optional
    this.onDelete,
  }) : super(key: key);

  // Function to show the options menu
  void _showOptionsMenu(BuildContext context) {
    showModalBottomSheet(
      context: context,
      builder: (context) {
        return SafeArea( // Use SafeArea to avoid system UI
          child: Column(
            mainAxisSize: MainAxisSize.min, // Take minimum space
            children: <Widget>[
              ListTile(
                leading: const Icon(Icons.edit_outlined),
                title: const Text('Редактировать'),
                onTap: () {
                  Navigator.pop(context); // Close the bottom sheet
                  onEdit?.call(); // Call the edit callback if it exists
                },
              ),
              ListTile(
                leading: const Icon(Icons.delete_outline, color: Colors.red),
                title: const Text('Удалить', style: TextStyle(color: Colors.red)),
                onTap: () {
                  Navigator.pop(context); // Close the bottom sheet
                  onDelete?.call(); // Call the delete callback if it exists
                },
              ),
              // Optional: Add a Cancel button
              ListTile(
                leading: const Icon(Icons.cancel_outlined),
                title: const Text('Отмена'),
                onTap: () => Navigator.pop(context),
              ),
            ],
          ),
        );
      },
    );
  }


  @override
  Widget build(BuildContext context) {
    final isExpense = transaction.type == 'expense';
    final theme = Theme.of(context);

    // Wrap the ListTile in an InkWell to handle long press
    return InkWell(
      onLongPress: () => _showOptionsMenu(context), // Show menu on long press
      child: Padding(
        padding: const EdgeInsets.symmetric(horizontal: 16.0, vertical: 12.0), // Adjusted padding
        child: Row(
          children: [
            // Category Icon (only for expenses)
            if (isExpense && transaction.category != null)
              Container(
                padding: const EdgeInsets.all(8),
                decoration: BoxDecoration(
                  color: transaction.category!.colorCode.withOpacity(0.1), // Use category color
                  shape: BoxShape.circle,
                ),
                child: Icon(
                  transaction.category!.iconCode, // Use category icon
                  color: transaction.category!.colorCode,
                  size: 20,
                ),
              )
            else if (!isExpense) // Icon for Income
              Container(
                 padding: const EdgeInsets.all(8),
                 decoration: BoxDecoration(
                   color: Colors.green.shade100, // Specific color for income icon background
                   shape: BoxShape.circle,
                 ),
                 child: Icon(
                   Icons.attach_money_outlined, // Specific icon for income
                   color: Colors.green.shade700,
                   size: 20,
                 ),
               ),
            const SizedBox(width: 16), // Space between icon and text

            // Transaction Details (Category/Merchant, Date)
            Expanded(
              child: Column(
                crossAxisAlignment: CrossAxisAlignment.start,
                children: [
                  Text(
                    isExpense ? transaction.merchant : transaction.merchant, // Display merchant for both for now
                    style: theme.textTheme.titleMedium?.copyWith(
                      fontWeight: FontWeight.w500, // Medium weight
                    ),
                    maxLines: 1,
                    overflow: TextOverflow.ellipsis, // Prevent overflow
                  ),
                  const SizedBox(height: 4),
                  Text(
                    // Display category name for expense, or 'Income' for income
                    isExpense ? transaction.category?.name ?? 'Unknown Category' : 'Income',
                    style: theme.textTheme.bodySmall?.copyWith(
                      color: theme.textTheme.bodySmall?.color?.withOpacity(0.7), // Subtle color
                    ),
                  ),
                ],
              ),
            ),

            // Amount and Date
            Column(
              crossAxisAlignment: CrossAxisAlignment.end,
              children: [
                Text(
                  '${isExpense ? '-' : '+'} \$${NumberFormat.currency(symbol: '', decimalDigits: 2).format(transaction.amount)}', // Format amount with sign
                  style: theme.textTheme.titleMedium?.copyWith(
                    fontWeight: FontWeight.bold,
                    color: isExpense ? Colors.red.shade600 : Colors.green.shade600, // Color based on type
                  ),
                ),
                const SizedBox(height: 4),
                Text(
                  DateFormat('MMM d, yyyy').format(transaction.date), // Format date
                  style: theme.textTheme.bodySmall?.copyWith(
                    color: theme.textTheme.bodySmall?.color?.withOpacity(0.7), // Subtle color
                  ),
                ),
              ],
            ),
          ],
        ),
      ),
    );
  }
}