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Merge pull request #762 from threefoldtech/development_add_bridge
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| Original file line number | Diff line number | Diff line change |
|---|---|---|
| @@ -0,0 +1,304 @@ | ||
| import 'package:flutter/material.dart'; | ||
| import 'package:flutter_riverpod/flutter_riverpod.dart'; | ||
| import 'package:threebotlogin/helpers/globals.dart'; | ||
| import 'package:threebotlogin/helpers/transaction_helpers.dart'; | ||
| import 'package:threebotlogin/models/wallet.dart'; | ||
| import 'package:threebotlogin/providers/wallets_provider.dart'; | ||
| import 'package:threebotlogin/screens/wallets/contacts.dart'; | ||
| import 'package:threebotlogin/services/stellar_service.dart'; | ||
| import 'package:threebotlogin/widgets/wallets/bridge_confirmation.dart'; | ||
| import 'package:threebotlogin/widgets/wallets/swap_transaction_widget.dart'; | ||
| import 'package:validators/validators.dart'; | ||
| import 'package:threebotlogin/services/stellar_service.dart' as Stellar; | ||
| import 'package:threebotlogin/services/tfchain_service.dart' as TFChain; | ||
|
|
||
| class WalletBridgeScreen extends StatefulWidget { | ||
| const WalletBridgeScreen( | ||
| {super.key, required this.wallet, required this.allWallets}); | ||
| final Wallet wallet; | ||
| final List<Wallet> allWallets; | ||
|
|
||
| @override | ||
| State<WalletBridgeScreen> createState() => _WalletBridgeScreenState(); | ||
| } | ||
|
|
||
| class _WalletBridgeScreenState extends State<WalletBridgeScreen> { | ||
| final fromController = TextEditingController(); | ||
| final toController = TextEditingController(); | ||
| final amountController = TextEditingController(); | ||
| BridgeOperation transactionType = BridgeOperation.Withdraw; | ||
| bool isWithdraw = true; | ||
| String? toAddressError; | ||
| String? amountError; | ||
| bool reloadBalance = true; | ||
|
|
||
| @override | ||
| void initState() { | ||
| fromController.text = widget.wallet.tfchainAddress; | ||
| _reloadBalances(); | ||
| super.initState(); | ||
| } | ||
|
|
||
| @override | ||
| void dispose() { | ||
| fromController.dispose(); | ||
| toController.dispose(); | ||
| amountController.dispose(); | ||
| reloadBalance = false; | ||
| super.dispose(); | ||
| } | ||
|
|
||
| _loadTFChainBalance() async { | ||
| final chainUrl = Globals().chainUrl; | ||
| final balance = | ||
| await TFChain.getBalance(chainUrl, widget.wallet.tfchainAddress); | ||
| widget.wallet.tfchainBalance = | ||
| balance.toString() == '0.0' ? '0' : balance.toString(); | ||
| setState(() {}); | ||
| } | ||
|
|
||
| _loadStellarBalance() async { | ||
| widget.wallet.stellarBalance = | ||
| (await Stellar.getBalance(widget.wallet.stellarSecret)).toString(); | ||
| setState(() {}); | ||
| } | ||
|
|
||
| _reloadBalances() async { | ||
| if (!reloadBalance) return; | ||
| final refreshBalance = Globals().refreshBalance; | ||
| final WalletsNotifier walletRef = | ||
| ProviderScope.containerOf(context, listen: false) | ||
| .read(walletsNotifier.notifier); | ||
| final wallet = walletRef.getUpdatedWallet(widget.wallet.name)!; | ||
| widget.wallet.tfchainBalance = wallet.tfchainBalance; | ||
| widget.wallet.stellarBalance = wallet.stellarBalance; | ||
| setState(() {}); | ||
| await Future.delayed(Duration(seconds: refreshBalance)); | ||
| await _reloadBalances(); | ||
| } | ||
|
|
||
| onTransactionChange(BridgeOperation type) { | ||
| transactionType = type; | ||
| isWithdraw = transactionType == BridgeOperation.Withdraw ? true : false; | ||
| fromController.text = isWithdraw | ||
| ? widget.wallet.tfchainAddress | ||
| : widget.wallet.stellarAddress; | ||
| toController.text = ''; | ||
| toAddressError = null; | ||
| amountError = null; | ||
| setState(() {}); | ||
| } | ||
|
|
||
| Future<bool> _validateToAddress() async { | ||
| final toAddress = toController.text.trim(); | ||
| toAddressError = null; | ||
| if (toAddress.isEmpty) { | ||
| toAddressError = "Address can't be empty"; | ||
| return false; | ||
| } | ||
|
|
||
| if (!isWithdraw) { | ||
| if (toAddress.length != 48) { | ||
| toAddressError = 'Address length should be 48 characters'; | ||
| return false; | ||
| } | ||
| final twinId = await TFChain.getTwinIdByQueryClient(toAddress); | ||
| if (twinId == 0) { | ||
| toAddressError = 'Address must have a twin ID'; | ||
| return false; | ||
| } | ||
| } | ||
|
|
||
| if (isWithdraw) { | ||
| if (!isValidStellarAddress(toAddress)) { | ||
| toAddressError = 'Invaild Stellar address'; | ||
| return false; | ||
| } | ||
| if (toAddress == Globals().bridgeTFTAddress) { | ||
| toAddressError = "Bridge address can't be the destination"; | ||
| return false; | ||
| } | ||
| final toAddrBalance = await Stellar.getBalanceByAccountId(toAddress); | ||
| if (toAddrBalance == '-1') { | ||
| toAddressError = 'Address must be active and have TFT trustline'; | ||
| return false; | ||
| } | ||
| } | ||
| return true; | ||
| } | ||
|
|
||
| bool _validateAmount() { | ||
| final amount = amountController.text.trim(); | ||
| amountError = null; | ||
|
|
||
| if (amount.isEmpty) { | ||
| amountError = "Amount can't be empty"; | ||
| return false; | ||
| } | ||
| if (!isFloat(amount)) { | ||
| amountError = 'Amount should have numeric values only'; | ||
| return false; | ||
| } | ||
| if (double.parse(amount) < 2) { | ||
| amountError = "Amount can't be less than 2"; | ||
| return false; | ||
| } | ||
| if (isWithdraw) { | ||
| if (double.parse(amount) > double.parse(widget.wallet.tfchainBalance)) { | ||
| amountError = "Amount shouldn't be more than the wallet balance"; | ||
| return false; | ||
| } | ||
| } | ||
|
|
||
| if (!isWithdraw) { | ||
| if (double.parse(amount) > double.parse(widget.wallet.stellarBalance)) { | ||
| amountError = "Amount shouldn't be more than the wallet balance"; | ||
| return false; | ||
| } | ||
| } | ||
| return true; | ||
| } | ||
|
|
||
| Future<bool> _validate() async { | ||
| final validAddress = await _validateToAddress(); | ||
| final validAmount = _validateAmount(); | ||
| setState(() {}); | ||
| return validAddress && validAmount; | ||
| } | ||
|
|
||
| void _selectToAddress(String address) { | ||
| toController.text = address; | ||
| setState(() {}); | ||
| } | ||
|
|
||
| @override | ||
| Widget build(BuildContext context) { | ||
| String balance = isWithdraw | ||
| ? widget.wallet.tfchainBalance | ||
| : widget.wallet.stellarBalance; | ||
| final bool disableDeposit = widget.wallet.stellarBalance == '-1'; | ||
|
|
||
| if (disableDeposit && !isWithdraw) { | ||
| onTransactionChange(BridgeOperation.Withdraw); | ||
| } | ||
|
|
||
| return Scaffold( | ||
| appBar: AppBar(title: const Text('Bridge')), | ||
| body: SingleChildScrollView( | ||
| child: Padding( | ||
| padding: const EdgeInsets.all(8.0), | ||
| child: Column(children: [ | ||
| const SizedBox(height: 10), | ||
| SwapTransactionWidget( | ||
| bridgeOperation: transactionType, | ||
| onTransactionChange: onTransactionChange, | ||
| disableDeposit: disableDeposit), | ||
| const SizedBox(height: 20), | ||
| ListTile( | ||
| title: TextField( | ||
| readOnly: true, | ||
| style: Theme.of(context).textTheme.bodyMedium!.copyWith( | ||
| color: Theme.of(context).colorScheme.onSurface, | ||
| ), | ||
| controller: fromController, | ||
| decoration: InputDecoration( | ||
| labelText: 'From (name: ${widget.wallet.name})', | ||
| )), | ||
| ), | ||
| const SizedBox(height: 10), | ||
| ListTile( | ||
| title: TextField( | ||
| style: Theme.of(context).textTheme.bodyMedium!.copyWith( | ||
| color: Theme.of(context).colorScheme.onSurface, | ||
| ), | ||
| controller: toController, | ||
| decoration: InputDecoration( | ||
| labelText: 'To', | ||
| errorText: toAddressError, | ||
| suffixIcon: IconButton( | ||
| onPressed: () { | ||
| Navigator.of(context).push(MaterialPageRoute( | ||
| builder: (context) => ContactsScreen( | ||
| chainType: isWithdraw | ||
| ? ChainType.Stellar | ||
| : ChainType.TFChain, | ||
| currentWalletAddress: fromController.text, | ||
| wallets: isWithdraw | ||
| ? widget.allWallets | ||
| .where((w) => | ||
| double.parse(w.stellarBalance) >= | ||
| 0) | ||
| .toList() | ||
| : widget.allWallets, | ||
| onSelectToAddress: _selectToAddress), | ||
| )); | ||
| }, | ||
| icon: const Icon(Icons.person)))), | ||
| ), | ||
| const SizedBox(height: 10), | ||
| ListTile( | ||
| title: TextField( | ||
| style: Theme.of(context).textTheme.bodyMedium!.copyWith( | ||
| color: Theme.of(context).colorScheme.onSurface, | ||
| ), | ||
| keyboardType: | ||
| const TextInputType.numberWithOptions(decimal: true), | ||
| controller: amountController, | ||
| decoration: InputDecoration( | ||
| labelText: 'Amount (Balance: ${formatAmount(balance)})', | ||
| hintText: '100', | ||
| suffixText: 'TFT', | ||
| errorText: amountError)), | ||
| subtitle: Text('Max Fee: ${!isWithdraw ? 1.1 : 1.01} TFT'), | ||
| ), | ||
| const SizedBox(height: 10), | ||
| Padding( | ||
| padding: const EdgeInsets.symmetric(vertical: 8, horizontal: 10), | ||
| child: ElevatedButton( | ||
| onPressed: () async { | ||
| if (await _validate()) { | ||
| await _bridge_confirmation(); | ||
| } | ||
| }, | ||
| style: ElevatedButton.styleFrom(), | ||
| child: SizedBox( | ||
| width: double.infinity, | ||
| child: Text( | ||
| 'Submit', | ||
| style: Theme.of(context).textTheme.titleLarge!.copyWith( | ||
| color: Theme.of(context).colorScheme.primary, | ||
| fontWeight: FontWeight.bold), | ||
| textAlign: TextAlign.center, | ||
| ), | ||
| ), | ||
| ), | ||
| ), | ||
| ]), | ||
| ), | ||
| ), | ||
| ); | ||
| } | ||
|
|
||
| _bridge_confirmation() async { | ||
| final memoText = | ||
| !isWithdraw ? await TFChain.getMemo(toController.text.trim()) : null; | ||
| showModalBottomSheet( | ||
| isScrollControlled: true, | ||
| useSafeArea: true, | ||
| isDismissible: false, | ||
| constraints: const BoxConstraints(maxWidth: double.infinity), | ||
| context: context, | ||
| builder: (ctx) => BridgeConfirmationWidget( | ||
| bridgeOperation: transactionType, | ||
| secret: isWithdraw | ||
| ? widget.wallet.tfchainSecret | ||
| : widget.wallet.stellarSecret, | ||
| from: fromController.text.trim(), | ||
| to: toController.text.trim(), | ||
| amount: amountController.text.trim(), | ||
| memo: memoText, | ||
| reloadBalance: | ||
| isWithdraw ? _loadTFChainBalance : _loadStellarBalance, | ||
| )); | ||
| } | ||
| } |
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