import 'package:flutter/material.dart';
import 'package:kmobile/data/models/user.dart';
import 'package:kmobile/l10n/app_localizations.dart';

class PositivePayScreen extends StatefulWidget {
  final List<User> users;
  final int selectedIndex;
  const PositivePayScreen({
    super.key,
    required this.users,
    required this.selectedIndex,
  });

  @override
  State<PositivePayScreen> createState() => _PositivePayScreenState();
}

class _PositivePayScreenState extends State<PositivePayScreen> {
  final _formKey = GlobalKey<FormState>();
  final _accountNumberController = TextEditingController();
  final _chequeNumberController = TextEditingController();
  final _chequeDateController = TextEditingController();
  final _amountController = TextEditingController();
  final _payeeController = TextEditingController();

  @override
  void initState() {
    super.initState();
    // Pre-fill the account number if possible
    if (widget.users.isNotEmpty) {
      _accountNumberController.text = widget.users[widget.selectedIndex].accountNo!;
    }
  }

  @override
  void dispose() {
    _accountNumberController.dispose();
    _chequeNumberController.dispose();
    _chequeDateController.dispose();
    _amountController.dispose();
    _payeeController.dispose();
    super.dispose();
  }

  @override
  Widget build(BuildContext context) {
    return Scaffold(
      appBar: AppBar(
        title: Text(
          AppLocalizations.of(context).positivePay, // Will be replaced by localization
        ),
        centerTitle: false,
      ),
      body: SingleChildScrollView(
        padding: const EdgeInsets.all(16.0),
        child: Form(
          key: _formKey,
          child: Column(
            crossAxisAlignment: CrossAxisAlignment.stretch,
            children: <Widget>[
              const SizedBox(height: 16.0),
              TextFormField(
                controller: _accountNumberController,
                decoration: InputDecoration(
                  labelText: AppLocalizations.of(context).accountNumber,
                  border: const OutlineInputBorder(),
                ),
                keyboardType: TextInputType.number,
                validator: (value) {
                  if (value == null || value.isEmpty) {
                    return 'Please enter account number';
                  }
                  return null;
                },
              ),
              const SizedBox(height: 16.0),
              TextFormField(
                controller: _chequeNumberController,
                decoration: InputDecoration(
                  labelText: AppLocalizations.of(context).chequeNumberLabel,
                  border: const OutlineInputBorder(),
                ),
                keyboardType: TextInputType.number,
                validator: (value) {
                  if (value == null || value.isEmpty) {
                    return AppLocalizations.of(context).pleaseEnterChequeNumber;
                  }
                  return null;
                },
              ),
              const SizedBox(height: 16.0),
              TextFormField(
                controller: _chequeDateController,
                decoration: InputDecoration(
                  labelText: AppLocalizations.of(context).chequeIssuedDate,
                  border: const OutlineInputBorder(),
                  suffixIcon: const Icon(Icons.calendar_today),
                ),
                readOnly: true,
                onTap: () async {
                  DateTime? pickedDate = await showDatePicker(
                    context: context,
                    initialDate: DateTime.now(),
                    firstDate: DateTime(2000),
                    lastDate: DateTime.now(),
                  );
                  if (pickedDate != null) {
                    // Format the date as you wish
                    String formattedDate = "${pickedDate.day}-${pickedDate.month}-${pickedDate.year}";
                    _chequeDateController.text = formattedDate;
                  }
                },
                 validator: (value) {
                  if (value == null || value.isEmpty) {
                    return AppLocalizations.of(context).pleaseSelectChequeIssuedDate;
                  }
                  return null;
                },
              ),
              const SizedBox(height: 16.0),
              TextFormField(
                controller: _payeeController,
                decoration: InputDecoration(
                  labelText: AppLocalizations.of(context).payeeName,
                  border: const OutlineInputBorder(),
                ),
              ),
              const SizedBox(height: 16.0),
              TextFormField(
                controller: _amountController,
                decoration: InputDecoration(
                  labelText: AppLocalizations.of(context).amountLabel,
                  border: const OutlineInputBorder(),
                  prefixText: '₹ ',
                ),
                keyboardType: const TextInputType.numberWithOptions(decimal: true),
                validator: (value) {
                  if (value == null || value.isEmpty) {
                    return AppLocalizations.of(context).pleaseEnterAmount;
                  }
                  return null;
                },
              ),
              const SizedBox(height: 32.0),
              ElevatedButton(
                onPressed: () {
                  if (_formKey.currentState!.validate()) {
                    // Process data
                    ScaffoldMessenger.of(context).showSnackBar(
                      SnackBar(content: Text(AppLocalizations.of(context).processingData)),
                    );
                  }
                },
                child: Text(AppLocalizations.of(context).proceedButton),
              ),
            ],
          ),
        ),
      ),
    );
  }
}