import 'package:flutter/material.dart';

import 'package:pshared/models/payment/methods/crypto_address.dart';

import 'package:pweb/utils/text_field_styles.dart';


class CryptoAddressForm extends StatefulWidget {
  final void Function(CryptoAddressPaymentMethod) onChanged;
  final CryptoAddressPaymentMethod? initialData;
  final bool isEditable;

  const CryptoAddressForm({
    super.key,
    required this.onChanged,
    this.initialData,
    required this.isEditable,
  });

  @override
  State<CryptoAddressForm> createState() => _CryptoAddressFormState();
}

class _CryptoAddressFormState extends State<CryptoAddressForm> {
  late TextEditingController _addressCtrl;
  late TextEditingController _networkCtrl;
  late TextEditingController _destinationTagCtrl;

  @override
  void initState() {
    super.initState();
    _addressCtrl = TextEditingController(text: widget.initialData?.address);
    _networkCtrl = TextEditingController(text: widget.initialData?.network);
    _destinationTagCtrl = TextEditingController(text: widget.initialData?.destinationTag);
  }

  void _emit() {
    if (_addressCtrl.text.isNotEmpty && _networkCtrl.text.isNotEmpty) {
      widget.onChanged(
        CryptoAddressPaymentMethod(
          address: _addressCtrl.text,
          network: _networkCtrl.text,
          destinationTag: _destinationTagCtrl.text.isNotEmpty ? _destinationTagCtrl.text : null,
        ),
      );
    }
  }

  @override
  void didUpdateWidget(covariant CryptoAddressForm oldWidget) {
    super.didUpdateWidget(oldWidget);
    final newData = widget.initialData;
    final oldData = oldWidget.initialData;

    if (newData == null && oldData != null) {
      _addressCtrl.clear();
      _networkCtrl.clear();
      _destinationTagCtrl.clear();
      return;
    }

    if (newData != null && newData != oldData) {
      _addressCtrl.text = newData.address;
      _networkCtrl.text = newData.network;
      _destinationTagCtrl.text = newData.destinationTag ?? '';
    }
  }

  @override
  Widget build(BuildContext context) {
    return Column(
      children: [
        TextFormField(
          readOnly: !widget.isEditable,
          controller: _addressCtrl,
          decoration: getInputDecoration(context, 'Crypto address', widget.isEditable),
          style: getTextFieldStyle(context, widget.isEditable),
          onChanged: (_) => _emit(),
          validator: (val) => (val?.isEmpty ?? true) ? 'Enter crypto address' : null,
        ),
        const SizedBox(height: 12),
        TextFormField(
          readOnly: !widget.isEditable,
          controller: _networkCtrl,
          decoration: getInputDecoration(context, 'Network', widget.isEditable),
          style: getTextFieldStyle(context, widget.isEditable),
          onChanged: (_) => _emit(),
          validator: (val) => (val?.isEmpty ?? true) ? 'Enter network' : null,
        ),
        const SizedBox(height: 12),
        TextFormField(
          readOnly: !widget.isEditable,
          controller: _destinationTagCtrl,
          decoration: getInputDecoration(context, 'Destination tag / memo (optional)', widget.isEditable),
          style: getTextFieldStyle(context, widget.isEditable),
          onChanged: (_) => _emit(),
        ),
      ],
    );
  }
}