| 1 | import 'dart:convert'; |
| 2 | |
| 3 | import 'package:cake_wallet/core/fiat_conversion_service.dart'; |
| 4 | import 'package:cake_wallet/entities/fiat_api_mode.dart'; |
| 5 | import 'package:cake_wallet/entities/erc20_token_info_moralis.dart'; |
| 6 | import 'package:cake_wallet/entities/sort_balance_types.dart'; |
| 7 | import 'package:cake_wallet/evm/evm.dart'; |
| 8 | import 'package:cake_wallet/reactions/wallet_connect.dart'; |
| 9 | import 'package:cake_wallet/solana/solana.dart'; |
| 10 | import 'package:cake_wallet/store/settings_store.dart'; |
| 11 | import 'package:cake_wallet/tron/tron.dart'; |
| 12 | import 'package:cake_wallet/utils/token_utilities.dart'; |
| 13 | import 'package:cw_core/utils/proxy_wrapper.dart'; |
| 14 | import 'package:cake_wallet/view_model/dashboard/balance_view_model.dart'; |
| 15 | import 'package:cake_wallet/zano/zano.dart'; |
| 16 | import 'package:cw_core/crypto_currency.dart'; |
| 17 | import 'package:cw_core/erc20_token.dart'; |
| 18 | import 'package:cw_core/utils/homoglyph_normalizer.dart'; |
| 19 | import 'package:cw_core/utils/print_verbose.dart'; |
| 20 | import 'package:cw_core/wallet_type.dart'; |
| 21 | import 'package:mobx/mobx.dart'; |
| 22 | import 'package:cake_wallet/.secrets.g.dart' as secrets; |
| 23 | |
| 24 | part 'home_settings_view_model.g.dart'; |
| 25 | |
| 26 | class HomeSettingsViewModel = HomeSettingsViewModelBase with _$HomeSettingsViewModel; |
| 27 | |
| 28 | abstract class HomeSettingsViewModelBase with Store { |
| 29 | HomeSettingsViewModelBase(this._settingsStore, this._balanceViewModel) |
| 30 | : tokens = ObservableSet<CryptoCurrency>(), |
| 31 | isAddingToken = false, |
| 32 | isDeletingToken = false, |
| 33 | isValidatingContractAddress = false, |
| 34 | showCombinedBalance = _balanceViewModel.wallet.walletInfo.showCombinedBalance, |
| 35 | favoriteToken = _balanceViewModel.wallet.currency { |
| 36 | _updateTokensList(); |
| 37 | _updateLocalFavoriteToken(); |
| 38 | |
| 39 | // React to wallet changes |
| 40 | reaction((_) => _balanceViewModel.wallet, (_) { |
| 41 | _updateTokensList(); |
| 42 | }); |
| 43 | reaction((_) { |
| 44 | final wallet = _balanceViewModel.wallet; |
| 45 | if (isEVMCompatibleChain(wallet.type)) { |
| 46 | final selectedChainId = evm!.getSelectedChainId(wallet); |
| 47 | final erc20Currencies = evm!.getERC20Currencies(wallet); |
| 48 | return '${wallet.currency.title}_${selectedChainId}_${erc20Currencies.length}'; |
| 49 | } |
| 50 | return null; |
| 51 | }, (_) async { |
| 52 | await Future.delayed(const Duration(milliseconds: 200)); |
| 53 | _updateTokensList(); |
| 54 | }); |
| 55 | } |
| 56 | |
| 57 | final SettingsStore _settingsStore; |
| 58 | final BalanceViewModel _balanceViewModel; |
| 59 | |
| 60 | final ObservableSet<CryptoCurrency> tokens; |
| 61 | |
| 62 | @computed |
| 63 | List<CryptoCurrency> get enabledTokens => |
| 64 | [_balanceViewModel.wallet.currency, ...tokens.where((item) => item.enabled).toList()]; |
| 65 | |
| 66 | WalletType get walletType => _balanceViewModel.wallet.type; |
| 67 | |
| 68 | @observable |
| 69 | bool isAddingToken; |
| 70 | |
| 71 | @observable |
| 72 | bool isDeletingToken; |
| 73 | |
| 74 | @observable |
| 75 | bool isValidatingContractAddress; |
| 76 | |
| 77 | @observable |
| 78 | String searchText = ''; |
| 79 | |
| 80 | @computed |
| 81 | SortBalanceBy get sortBalanceBy => _settingsStore.sortBalanceBy; |
| 82 | |
| 83 | @action |
| 84 | void setSortBalanceBy(SortBalanceBy value) { |
| 85 | _settingsStore.sortBalanceBy = value; |
| 86 | _updateTokensList(); |
| 87 | } |
| 88 | |
| 89 | @computed |
| 90 | bool get pinNativeToken => _settingsStore.pinNativeTokenAtTop; |
| 91 | |
| 92 | @action |
| 93 | void setPinNativeToken(bool value) => _settingsStore.pinNativeTokenAtTop = value; |
| 94 | |
| 95 | @action |
| 96 | Future<void> addToken({ |
| 97 | required String contractAddress, |
| 98 | required CryptoCurrency token, |
| 99 | }) async { |
| 100 | try { |
| 101 | isAddingToken = true; |
| 102 | |
| 103 | if (isEVMCompatibleChain(_balanceViewModel.wallet.type)) { |
| 104 | final evmToken = Erc20Token( |
| 105 | name: token.name, |
| 106 | symbol: token.title, |
| 107 | decimal: token.decimals, |
| 108 | contractAddress: contractAddress.toLowerCase(), |
| 109 | iconPath: token.iconPath, |
| 110 | isPotentialScam: token.isPotentialScam, |
| 111 | ); |
| 112 | await evm!.addErc20Token(_balanceViewModel.wallet, evmToken); |
| 113 | } |
| 114 | |
| 115 | if (_balanceViewModel.wallet.type == WalletType.solana) { |
| 116 | final splToken = token.copyWith(enabled: true); |
| 117 | await solana!.addSPLToken( |
| 118 | _balanceViewModel.wallet, |
| 119 | splToken, |
| 120 | contractAddress, |
| 121 | ); |
| 122 | } |
| 123 | |
| 124 | if (_balanceViewModel.wallet.type == WalletType.tron) { |
| 125 | final tronToken = token.copyWith(enabled: true); |
| 126 | await tron!.addTronToken(_balanceViewModel.wallet, tronToken, contractAddress); |
| 127 | } |
| 128 | |
| 129 | if (_balanceViewModel.wallet.type == WalletType.zano) { |
| 130 | await zano!.addZanoAssetById(_balanceViewModel.wallet, contractAddress); |
| 131 | } |
| 132 | |
| 133 | _updateTokensList(); |
| 134 | _updateFiatPrices(token); |
| 135 | } catch (e) { |
| 136 | throw e; |
| 137 | } finally { |
| 138 | isAddingToken = false; |
| 139 | } |
| 140 | } |
| 141 | |
| 142 | @action |
| 143 | bool checkIfTokenIsAlreadyAdded(String contractAddress) { |
| 144 | if (isEVMCompatibleChain(_balanceViewModel.wallet.type)) { |
| 145 | return evm!.isTokenAlreadyAdded(_balanceViewModel.wallet, contractAddress); |
| 146 | } |
| 147 | |
| 148 | if (_balanceViewModel.wallet.type == WalletType.solana) { |
| 149 | return solana!.isTokenAlreadyAdded(_balanceViewModel.wallet, contractAddress); |
| 150 | } |
| 151 | |
| 152 | if (_balanceViewModel.wallet.type == WalletType.tron) { |
| 153 | return tron!.isTokenAlreadyAdded(_balanceViewModel.wallet, contractAddress); |
| 154 | } |
| 155 | |
| 156 | if (_balanceViewModel.wallet.type == WalletType.zano) { |
| 157 | return zano!.isTokenAlreadyAdded(_balanceViewModel.wallet, contractAddress); |
| 158 | } |
| 159 | |
| 160 | return false; |
| 161 | } |
| 162 | |
| 163 | @action |
| 164 | Future<void> deleteToken(CryptoCurrency token) async { |
| 165 | try { |
| 166 | isDeletingToken = true; |
| 167 | if (isEVMCompatibleChain(_balanceViewModel.wallet.type)) { |
| 168 | await evm!.deleteErc20Token(_balanceViewModel.wallet, token as Erc20Token); |
| 169 | } |
| 170 | |
| 171 | if (_balanceViewModel.wallet.type == WalletType.solana) { |
| 172 | await solana!.deleteSPLToken(_balanceViewModel.wallet, token); |
| 173 | } |
| 174 | |
| 175 | if (_balanceViewModel.wallet.type == WalletType.tron) { |
| 176 | await tron!.deleteTronToken(_balanceViewModel.wallet, token); |
| 177 | } |
| 178 | if (_balanceViewModel.wallet.type == WalletType.zano) { |
| 179 | await zano!.deleteZanoAsset(_balanceViewModel.wallet, token); |
| 180 | } |
| 181 | _updateTokensList(); |
| 182 | } finally { |
| 183 | isDeletingToken = false; |
| 184 | } |
| 185 | } |
| 186 | |
| 187 | Future<bool> checkIfERC20TokenContractAddressIsAPotentialScamAddress( |
| 188 | String contractAddress, |
| 189 | ) async { |
| 190 | try { |
| 191 | isValidatingContractAddress = true; |
| 192 | |
| 193 | if (!isEVMCompatibleChain(_balanceViewModel.wallet.type)) { |
| 194 | return false; |
| 195 | } |
| 196 | |
| 197 | bool isPotentialScamViaMoralis = await _isPotentialScamTokenViaMoralis( |
| 198 | contractAddress, |
| 199 | getChainNameBasedOnWalletType(_balanceViewModel.wallet.type), |
| 200 | ); |
| 201 | |
| 202 | bool isUnverifiedContract = await _isContractUnverified( |
| 203 | contractAddress, |
| 204 | chainId: evm!.getSelectedChainId(_balanceViewModel.wallet).toString(), |
| 205 | ); |
| 206 | |
| 207 | final showWarningForContractAddress = isPotentialScamViaMoralis || isUnverifiedContract; |
| 208 | |
| 209 | return showWarningForContractAddress; |
| 210 | } finally { |
| 211 | isValidatingContractAddress = false; |
| 212 | } |
| 213 | } |
| 214 | |
| 215 | bool checkIfTokenIsWhitelisted(String contractAddress) { |
| 216 | // get the default tokens for each currency type: |
| 217 | List<String> defaultTokenAddresses = []; |
| 218 | switch (_balanceViewModel.wallet.type) { |
| 219 | case WalletType.ethereum: |
| 220 | case WalletType.polygon: |
| 221 | case WalletType.base: |
| 222 | case WalletType.arbitrum: |
| 223 | case WalletType.bsc: |
| 224 | defaultTokenAddresses = evm!.getDefaultTokenContractAddresses(_balanceViewModel.wallet); |
| 225 | break; |
| 226 | case WalletType.solana: |
| 227 | defaultTokenAddresses = solana!.getDefaultTokenContractAddresses(); |
| 228 | break; |
| 229 | case WalletType.tron: |
| 230 | defaultTokenAddresses = tron!.getDefaultTokenContractAddresses(); |
| 231 | break; |
| 232 | case WalletType.zano: |
| 233 | case WalletType.banano: |
| 234 | case WalletType.monero: |
| 235 | case WalletType.none: |
| 236 | case WalletType.bitcoin: |
| 237 | case WalletType.litecoin: |
| 238 | case WalletType.haven: |
| 239 | case WalletType.nano: |
| 240 | case WalletType.wownero: |
| 241 | case WalletType.bitcoinCash: |
| 242 | case WalletType.decred: |
| 243 | case WalletType.dogecoin: |
| 244 | case WalletType.zcash: |
| 245 | return false; |
| 246 | } |
| 247 | |
| 248 | // check if the contractAddress is in the defaultTokenAddresses |
| 249 | bool isInWhitelist = defaultTokenAddresses |
| 250 | .any((element) => element.toLowerCase() == contractAddress.toLowerCase()); |
| 251 | return isInWhitelist; |
| 252 | } |
| 253 | |
| 254 | bool checkIfTokenSymbolMatchesDefaultToken(String symbol) { |
| 255 | final normalizedSymbol = normalizeHomoglyphs(symbol.trim().toUpperCase()); |
| 256 | if (normalizedSymbol.isEmpty) return false; |
| 257 | |
| 258 | List<String> defaultTokenSymbols = []; |
| 259 | switch (_balanceViewModel.wallet.type) { |
| 260 | case WalletType.ethereum: |
| 261 | case WalletType.polygon: |
| 262 | case WalletType.base: |
| 263 | case WalletType.arbitrum: |
| 264 | case WalletType.bsc: |
| 265 | defaultTokenSymbols = evm!.getDefaultTokenSymbols(_balanceViewModel.wallet); |
| 266 | break; |
| 267 | case WalletType.solana: |
| 268 | defaultTokenSymbols = solana!.getDefaultTokenSymbols(); |
| 269 | break; |
| 270 | case WalletType.tron: |
| 271 | defaultTokenSymbols = tron!.getDefaultTokenSymbols(); |
| 272 | break; |
| 273 | case WalletType.zano: |
| 274 | case WalletType.banano: |
| 275 | case WalletType.monero: |
| 276 | case WalletType.none: |
| 277 | case WalletType.bitcoin: |
| 278 | case WalletType.litecoin: |
| 279 | case WalletType.haven: |
| 280 | case WalletType.nano: |
| 281 | case WalletType.wownero: |
| 282 | case WalletType.bitcoinCash: |
| 283 | case WalletType.decred: |
| 284 | case WalletType.dogecoin: |
| 285 | case WalletType.zcash: |
| 286 | return false; |
| 287 | } |
| 288 | |
| 289 | return defaultTokenSymbols.any((s) => s.toUpperCase() == normalizedSymbol); |
| 290 | } |
| 291 | |
| 292 | Future<bool> _isPotentialScamTokenViaMoralis( |
| 293 | String contractAddress, |
| 294 | String chainName, |
| 295 | ) async { |
| 296 | final uri = Uri.https( |
| 297 | 'deep-index.moralis.io', |
| 298 | '/api/v2.2/erc20/metadata', |
| 299 | { |
| 300 | "chain": chainName, |
| 301 | "addresses": contractAddress, |
| 302 | }, |
| 303 | ); |
| 304 | |
| 305 | try { |
| 306 | final response = await ProxyWrapper().get( |
| 307 | clearnetUri: uri, |
| 308 | headers: { |
| 309 | "Accept": "application/json", |
| 310 | "X-API-Key": secrets.moralisApiKey, |
| 311 | }, |
| 312 | ); |
| 313 | |
| 314 | final decodedResponse = jsonDecode(response.body); |
| 315 | |
| 316 | final tokenInfo = Erc20TokenInfoMoralis.fromJson(decodedResponse[0] as Map<String, dynamic>); |
| 317 | |
| 318 | // Based on analysis using Moralis internal metrics |
| 319 | if (tokenInfo.possibleSpam == true) { |
| 320 | return true; |
| 321 | } |
| 322 | |
| 323 | // Tokens whose contract have not been verified are potentially risky tokens. |
| 324 | // if (tokenInfo.verifiedContract == false) { |
| 325 | // return true; |
| 326 | // } |
| 327 | |
| 328 | // Tokens with a security score less than 40 are potentially risky, requiring caution when dealing with them. |
| 329 | if (tokenInfo.securityScore != null && tokenInfo.securityScore! < 40) { |
| 330 | return true; |
| 331 | } |
| 332 | |
| 333 | // Having a Fully Diluted Valiuation of 0 is a significant red flag that could signify: |
| 334 | // - An abandoned/unlaunched project |
| 335 | // - Incorrect/missing token data |
| 336 | // - Suspicious manipulation of token data |
| 337 | |
| 338 | /// commented out as it's failing a lot of legit tokens |
| 339 | // if (tokenInfo.fullyDilutedValuation == '0') { |
| 340 | // return true; |
| 341 | // } |
| 342 | |
| 343 | return false; |
| 344 | } catch (e) { |
| 345 | printV('Error while checking scam via moralis: ${e.toString()}'); |
| 346 | return true; |
| 347 | } |
| 348 | } |
| 349 | |
| 350 | Future<bool> _isContractUnverified( |
| 351 | String contractAddress, { |
| 352 | required String chainId, |
| 353 | }) async { |
| 354 | final uri = Uri.https( |
| 355 | "api.etherscan.io", |
| 356 | "/v2/api", |
| 357 | { |
| 358 | "chainid": chainId, |
| 359 | "module": "contract", |
| 360 | "action": "getsourcecode", |
| 361 | "address": contractAddress, |
| 362 | "apikey": secrets.etherScanApiKey, |
| 363 | }, |
| 364 | ); |
| 365 | |
| 366 | try { |
| 367 | final response = await ProxyWrapper().get(clearnetUri: uri); |
| 368 | |
| 369 | final decodedResponse = jsonDecode(response.body) as Map<String, dynamic>; |
| 370 | |
| 371 | if (decodedResponse['status'] == '0') { |
| 372 | printV('${response.body}\n'); |
| 373 | printV('${decodedResponse['result']}\n'); |
| 374 | return true; |
| 375 | } |
| 376 | |
| 377 | if (decodedResponse['status'] == '1' && |
| 378 | decodedResponse['result'][0]['ABI'] == 'Contract source code not verified') { |
| 379 | printV('Call is valid but contract is not verified'); |
| 380 | return true; // Contract is not verified |
| 381 | } else { |
| 382 | printV('Call is valid and contract is verified'); |
| 383 | return false; // Contract is verified |
| 384 | } |
| 385 | } catch (e) { |
| 386 | printV('Error while checking contract verification: ${e.toString()}'); |
| 387 | return true; |
| 388 | } |
| 389 | } |
| 390 | |
| 391 | Future<CryptoCurrency?> getToken(String contractAddress) async { |
| 392 | if (isEVMCompatibleChain(_balanceViewModel.wallet.type)) { |
| 393 | return await evm!.getErc20Token(_balanceViewModel.wallet, contractAddress); |
| 394 | } |
| 395 | |
| 396 | if (_balanceViewModel.wallet.type == WalletType.solana) { |
| 397 | return await solana!.getSPLToken(_balanceViewModel.wallet, contractAddress); |
| 398 | } |
| 399 | |
| 400 | if (_balanceViewModel.wallet.type == WalletType.tron) { |
| 401 | return await tron!.getTronToken(_balanceViewModel.wallet, contractAddress); |
| 402 | } |
| 403 | |
| 404 | if (_balanceViewModel.wallet.type == WalletType.zano) { |
| 405 | return await zano!.getZanoAsset(_balanceViewModel.wallet, contractAddress); |
| 406 | } |
| 407 | |
| 408 | return null; |
| 409 | } |
| 410 | |
| 411 | Future<bool?> checkIfTokenIsVerifiedOnJupiter(String mintAddress) async { |
| 412 | if (_balanceViewModel.wallet.type != WalletType.solana) { |
| 413 | return null; |
| 414 | } |
| 415 | |
| 416 | return solana!.isTokenVerifiedOnJupiter(_balanceViewModel.wallet, mintAddress); |
| 417 | } |
| 418 | |
| 419 | CryptoCurrency get nativeToken => _balanceViewModel.wallet.currency; |
| 420 | |
| 421 | void _updateFiatPrices(CryptoCurrency token) async { |
| 422 | if (token.isPotentialScam) return; // don't fetch price data for potential scam tokens |
| 423 | try { |
| 424 | _balanceViewModel.fiatConversionStore.prices[token] = await FiatConversionService.fetchPrice( |
| 425 | crypto: token, |
| 426 | fiat: _settingsStore.fiatCurrency, |
| 427 | torOnly: _settingsStore.fiatApiMode == FiatApiMode.torOnly); |
| 428 | } catch (_) {} |
| 429 | } |
| 430 | |
| 431 | void changeTokenAvailability(CryptoCurrency token, bool value) async { |
| 432 | token.enabled = value; |
| 433 | |
| 434 | if (isEVMCompatibleChain(_balanceViewModel.wallet.type)) { |
| 435 | evm!.addErc20Token(_balanceViewModel.wallet, token as Erc20Token); |
| 436 | if (!value) evm!.removeTokenTransactionsInHistory(_balanceViewModel.wallet, token); |
| 437 | } |
| 438 | |
| 439 | if (_balanceViewModel.wallet.type == WalletType.solana) { |
| 440 | final address = solana!.getTokenAddress(token); |
| 441 | solana!.addSPLToken(_balanceViewModel.wallet, token, address); |
| 442 | } |
| 443 | |
| 444 | if (_balanceViewModel.wallet.type == WalletType.tron) { |
| 445 | final address = tron!.getTokenAddress(token); |
| 446 | tron!.addTronToken(_balanceViewModel.wallet, token, address); |
| 447 | } |
| 448 | |
| 449 | if (_balanceViewModel.wallet.type == WalletType.zano) { |
| 450 | await zano!.changeZanoAssetAvailability(_balanceViewModel.wallet, token); |
| 451 | } |
| 452 | |
| 453 | _refreshTokensList(); |
| 454 | } |
| 455 | |
| 456 | @action |
| 457 | void _updateTokensList() { |
| 458 | int _sortFunc(CryptoCurrency e1, CryptoCurrency e2) { |
| 459 | int index1 = _balanceViewModel.formattedBalances.indexWhere((element) => element.asset == e1); |
| 460 | int index2 = _balanceViewModel.formattedBalances.indexWhere((element) => element.asset == e2); |
| 461 | |
| 462 | if (e1.enabled && !e2.enabled) { |
| 463 | return -1; |
| 464 | } else if (e2.enabled && !e1.enabled) { |
| 465 | return 1; |
| 466 | } else if (!e1.enabled && !e2.enabled) { |
| 467 | // if both are disabled then sort alphabetically |
| 468 | return e1.name.compareTo(e2.name); |
| 469 | } |
| 470 | |
| 471 | return index1.compareTo(index2); |
| 472 | } |
| 473 | |
| 474 | tokens.clear(); |
| 475 | |
| 476 | if (isEVMCompatibleChain(_balanceViewModel.wallet.type)) { |
| 477 | tokens.addAll(evm! |
| 478 | .getERC20Currencies(_balanceViewModel.wallet) |
| 479 | .where((element) => _matchesSearchText(element)) |
| 480 | .toList() |
| 481 | ..sort(_sortFunc)); |
| 482 | } |
| 483 | |
| 484 | if (_balanceViewModel.wallet.type == WalletType.solana) { |
| 485 | tokens.addAll(solana! |
| 486 | .getSPLTokenCurrencies(_balanceViewModel.wallet) |
| 487 | .where((element) => _matchesSearchText(element)) |
| 488 | .toList() |
| 489 | ..sort(_sortFunc)); |
| 490 | } |
| 491 | |
| 492 | if (_balanceViewModel.wallet.type == WalletType.tron) { |
| 493 | tokens.addAll(tron! |
| 494 | .getTronTokenCurrencies(_balanceViewModel.wallet) |
| 495 | .where((element) => _matchesSearchText(element)) |
| 496 | .toList() |
| 497 | ..sort(_sortFunc)); |
| 498 | } |
| 499 | |
| 500 | if (_balanceViewModel.wallet.type == WalletType.zano) { |
| 501 | tokens.addAll(zano! |
| 502 | .getZanoAssets(_balanceViewModel.wallet) |
| 503 | .where((element) => _matchesSearchText(element)) |
| 504 | .toList() |
| 505 | ..sort(_sortFunc)); |
| 506 | } |
| 507 | } |
| 508 | |
| 509 | // FIXME these two observables cause duplicated state and are needed because mobx. remove them as part of the refactor and replace with proper getters |
| 510 | @observable |
| 511 | bool showCombinedBalance; |
| 512 | |
| 513 | @observable |
| 514 | CryptoCurrency favoriteToken; |
| 515 | |
| 516 | @action |
| 517 | void setShowCombinedBalance(bool value) { |
| 518 | _balanceViewModel.wallet.walletInfo.showCombinedBalance = value; |
| 519 | showCombinedBalance = value; |
| 520 | _balanceViewModel.wallet.updateBalance(); |
| 521 | _balanceViewModel.wallet.walletInfo.save(); |
| 522 | } |
| 523 | |
| 524 | @action |
| 525 | Future<void> setFavoriteToken(CryptoCurrency token) async { |
| 526 | final String? address; |
| 527 | |
| 528 | if (token == _balanceViewModel.wallet.currency) { |
| 529 | address = null; |
| 530 | } else { |
| 531 | address = getTokenAddressBasedOnWallet(token); |
| 532 | } |
| 533 | |
| 534 | _balanceViewModel.wallet.walletInfo.favoriteTokenAddress = address; |
| 535 | _balanceViewModel.wallet.walletInfo.save(); |
| 536 | _updateLocalFavoriteToken(); |
| 537 | } |
| 538 | |
| 539 | @action |
| 540 | Future<void> _updateLocalFavoriteToken() async { |
| 541 | favoriteToken = await TokenUtilities.findTokenByAddress( |
| 542 | walletType: _balanceViewModel.wallet.type, |
| 543 | address: _balanceViewModel.wallet.walletInfo.favoriteTokenAddress ?? "") ?? |
| 544 | _balanceViewModel.wallet.currency; |
| 545 | } |
| 546 | |
| 547 | @action |
| 548 | void _refreshTokensList() { |
| 549 | final _tokens = Set.of(tokens); |
| 550 | tokens.clear(); |
| 551 | tokens.addAll(_tokens); |
| 552 | } |
| 553 | |
| 554 | @action |
| 555 | void changeSearchText(String text) { |
| 556 | searchText = text; |
| 557 | _updateTokensList(); |
| 558 | } |
| 559 | |
| 560 | bool _matchesSearchText(CryptoCurrency asset) { |
| 561 | final address = getTokenAddressBasedOnWallet(asset); |
| 562 | |
| 563 | // The homes settings would only be displayed for either of Tron, EVM or Solana Wallets. |
| 564 | if (address == null) return false; |
| 565 | |
| 566 | return searchText.isEmpty || |
| 567 | asset.fullName!.toLowerCase().contains(searchText.toLowerCase()) || |
| 568 | asset.title.toLowerCase().contains(searchText.toLowerCase()) || |
| 569 | address == searchText; |
| 570 | } |
| 571 | |
| 572 | String? getTokenAddressBasedOnWallet(CryptoCurrency asset) { |
| 573 | if (_balanceViewModel.wallet.type == WalletType.tron) { |
| 574 | return tron!.getTokenAddress(asset); |
| 575 | } |
| 576 | |
| 577 | if (_balanceViewModel.wallet.type == WalletType.solana) { |
| 578 | return solana!.getTokenAddress(asset); |
| 579 | } |
| 580 | |
| 581 | if (isEVMCompatibleChain(_balanceViewModel.wallet.type)) { |
| 582 | return evm!.getTokenAddress(asset); |
| 583 | } |
| 584 | |
| 585 | if (_balanceViewModel.wallet.type == WalletType.zano) { |
| 586 | return zano!.getZanoAssetAddress(asset); |
| 587 | } |
| 588 | |
| 589 | // We return null if it's neither Tron, EVM or Solana wallet (which is actually impossible because we only display home settings for either of these four wallets). |
| 590 | return null; |
| 591 | } |
| 592 | } |