| 1 | import 'package:cw_core/crypto_currency.dart'; |
| 2 | import 'package:cw_core/wallet_type.dart'; |
| 3 | import 'package:cw_evm/utils/network_chain_utils.dart'; |
| 4 | |
| 5 | /// Centralized registry for all EVM chain configurations |
| 6 | class EvmChainRegistry { |
| 7 | static final EvmChainRegistry _instance = EvmChainRegistry._internal(); |
| 8 | factory EvmChainRegistry() => _instance; |
| 9 | EvmChainRegistry._internal() { |
| 10 | initialize(); |
| 11 | } |
| 12 | |
| 13 | final Map<int, ChainConfig> _chains = {}; |
| 14 | final Map<WalletType, int> _walletTypeToChainId = {}; |
| 15 | final Map<int, WalletType> _chainIdToWalletType = {}; |
| 16 | final Map<String, int> _tagToChainId = {}; |
| 17 | final Map<String, int> _caip2ToChainId = {}; |
| 18 | |
| 19 | bool _initialized = false; |
| 20 | |
| 21 | /// Initialize registry with all supported EVM chains |
| 22 | void initialize() { |
| 23 | if (_initialized) return; |
| 24 | _initialized = true; |
| 25 | |
| 26 | // Ethereum Mainnet |
| 27 | _registerChain( |
| 28 | const ChainConfig( |
| 29 | chainId: 1, |
| 30 | name: 'Ethereum', |
| 31 | shortCode: 'eth', |
| 32 | caip2: 'eip155:1', |
| 33 | nativeCurrency: CryptoCurrency.eth, |
| 34 | capabilities: ChainCapabilities( |
| 35 | supportsERC20: true, |
| 36 | supportsEIP1559: true, |
| 37 | supportsInternalTx: true, |
| 38 | supportsSubscriptions: false, |
| 39 | supportsENS: true, |
| 40 | ), |
| 41 | defaultRpcEndpoints: [ |
| 42 | 'ethereum-rpc.publicnode.com', |
| 43 | 'eth.llamarpc.com', |
| 44 | 'rpc.flashbots.net', |
| 45 | 'eth-mainnet.public.blastapi.io', |
| 46 | 'eth.nownodes.io', |
| 47 | 'ethereum.publicnode.com', |
| 48 | ], |
| 49 | explorerUrls: [ |
| 50 | 'https://etherscan.io', |
| 51 | ], |
| 52 | feeModel: FeeModel( |
| 53 | type: FeeType.eip1559, |
| 54 | defaultGasLimit: 21000, |
| 55 | ), |
| 56 | ), |
| 57 | WalletType.ethereum, |
| 58 | 'ETH', |
| 59 | ); |
| 60 | |
| 61 | // Polygon |
| 62 | _registerChain( |
| 63 | const ChainConfig( |
| 64 | chainId: 137, |
| 65 | name: 'Polygon', |
| 66 | shortCode: 'polygon', |
| 67 | caip2: 'eip155:137', |
| 68 | nativeCurrency: CryptoCurrency.maticpoly, |
| 69 | capabilities: ChainCapabilities( |
| 70 | supportsERC20: true, |
| 71 | supportsEIP1559: true, |
| 72 | supportsInternalTx: true, |
| 73 | supportsSubscriptions: false, |
| 74 | supportsENS: false, |
| 75 | ), |
| 76 | defaultRpcEndpoints: [ |
| 77 | 'polygon-rpc.com', |
| 78 | 'polygon-bor-rpc.publicnode.com', |
| 79 | 'polygon.llamarpc.com', |
| 80 | 'matic.nownodes.io', |
| 81 | ], |
| 82 | explorerUrls: [ |
| 83 | 'https://polygonscan.com', |
| 84 | ], |
| 85 | feeModel: FeeModel( |
| 86 | type: FeeType.eip1559, |
| 87 | defaultGasLimit: 21000, |
| 88 | ), |
| 89 | ), |
| 90 | WalletType.polygon, |
| 91 | 'POL', |
| 92 | ); |
| 93 | |
| 94 | // Base |
| 95 | _registerChain( |
| 96 | const ChainConfig( |
| 97 | chainId: 8453, |
| 98 | name: 'Base', |
| 99 | shortCode: 'base', |
| 100 | caip2: 'eip155:8453', |
| 101 | nativeCurrency: CryptoCurrency.baseEth, |
| 102 | capabilities: ChainCapabilities( |
| 103 | supportsERC20: true, |
| 104 | supportsEIP1559: true, |
| 105 | supportsInternalTx: true, |
| 106 | supportsSubscriptions: false, |
| 107 | supportsENS: false, |
| 108 | ), |
| 109 | defaultRpcEndpoints: [ |
| 110 | 'base.nownodes.io', |
| 111 | 'base.llamarpc.com', |
| 112 | 'base-rpc.publicnode.com', |
| 113 | '1rpc.io/base', |
| 114 | ], |
| 115 | explorerUrls: [ |
| 116 | 'https://basescan.org', |
| 117 | ], |
| 118 | feeModel: FeeModel( |
| 119 | type: FeeType.eip1559, |
| 120 | defaultGasLimit: 21000, |
| 121 | ), |
| 122 | ), |
| 123 | WalletType.base, |
| 124 | 'BASE', |
| 125 | ); |
| 126 | |
| 127 | // Arbitrum |
| 128 | _registerChain( |
| 129 | const ChainConfig( |
| 130 | chainId: 42161, |
| 131 | name: 'Arbitrum', |
| 132 | shortCode: 'arbitrum', |
| 133 | caip2: 'eip155:42161', |
| 134 | nativeCurrency: CryptoCurrency.arbEth, |
| 135 | capabilities: ChainCapabilities( |
| 136 | supportsERC20: true, |
| 137 | supportsEIP1559: true, |
| 138 | supportsInternalTx: true, |
| 139 | supportsSubscriptions: false, |
| 140 | supportsENS: false, |
| 141 | ), |
| 142 | defaultRpcEndpoints: [ |
| 143 | 'arbitrum.nownodes.io', |
| 144 | 'arbitrum.drpc.org', |
| 145 | 'arbitrum-one-rpc.publicnode.com', |
| 146 | ], |
| 147 | explorerUrls: [ |
| 148 | 'https://arbiscan.io', |
| 149 | ], |
| 150 | feeModel: FeeModel( |
| 151 | type: FeeType.eip1559, |
| 152 | defaultGasLimit: 21000, |
| 153 | ), |
| 154 | ), |
| 155 | WalletType.arbitrum, |
| 156 | 'ARB', |
| 157 | ); |
| 158 | |
| 159 | // BNB Smart Chain |
| 160 | _registerChain( |
| 161 | const ChainConfig( |
| 162 | chainId: 56, |
| 163 | name: 'BNB Smart Chain', |
| 164 | shortCode: 'bsc', |
| 165 | caip2: 'eip155:56', |
| 166 | nativeCurrency: CryptoCurrency.bnb, |
| 167 | capabilities: ChainCapabilities( |
| 168 | supportsERC20: true, |
| 169 | supportsEIP1559: true, |
| 170 | supportsInternalTx: true, |
| 171 | supportsSubscriptions: false, |
| 172 | supportsENS: false, |
| 173 | ), |
| 174 | defaultRpcEndpoints: [ |
| 175 | 'bsc-dataseed1.binance.org', |
| 176 | 'bsc-dataseed2.binance.org', |
| 177 | 'bsc-dataseed1.defibit.io', |
| 178 | 'bsc-dataseed1.nodereal.io', |
| 179 | 'bsc.llamarpc.com', |
| 180 | 'bsc-rpc.publicnode.com', |
| 181 | ], |
| 182 | explorerUrls: [ |
| 183 | 'https://bscscan.com', |
| 184 | ], |
| 185 | feeModel: FeeModel( |
| 186 | type: FeeType.eip1559, |
| 187 | defaultGasLimit: 21000, |
| 188 | ), |
| 189 | ), |
| 190 | WalletType.bsc, |
| 191 | 'BSC', |
| 192 | ); |
| 193 | } |
| 194 | |
| 195 | void _registerChain( |
| 196 | ChainConfig config, |
| 197 | WalletType walletType, |
| 198 | String tag, |
| 199 | ) { |
| 200 | _chains[config.chainId] = config; |
| 201 | _walletTypeToChainId[walletType] = config.chainId; |
| 202 | _chainIdToWalletType[config.chainId] = walletType; |
| 203 | _tagToChainId[tag.toUpperCase()] = config.chainId; |
| 204 | _caip2ToChainId[config.caip2] = config.chainId; |
| 205 | } |
| 206 | |
| 207 | ChainConfig? getChainConfig(int chainId) => _chains[chainId]; |
| 208 | |
| 209 | ChainConfig? getChainConfigByWalletType(WalletType walletType) { |
| 210 | final chainId = _walletTypeToChainId[walletType]; |
| 211 | return chainId != null ? _chains[chainId] : null; |
| 212 | } |
| 213 | |
| 214 | /// Get chain configuration by tag (e.g., 'ETH', 'POL', 'BASE', 'ARB') |
| 215 | ChainConfig? getChainConfigByTag(String tag) { |
| 216 | final chainId = _tagToChainId[tag.toUpperCase()]; |
| 217 | return chainId != null ? _chains[chainId] : null; |
| 218 | } |
| 219 | |
| 220 | /// Get chain configuration by CAIP-2 identifier (e.g. 'eip155:1') |
| 221 | ChainConfig? getChainConfigByCaip2(String caip2) { |
| 222 | final chainId = _caip2ToChainId[caip2]; |
| 223 | return chainId != null ? _chains[chainId] : null; |
| 224 | } |
| 225 | |
| 226 | WalletType? getWalletTypeByChainId(int chainId) => _chainIdToWalletType[chainId]; |
| 227 | |
| 228 | int? getChainIdByWalletType(WalletType walletType) => _walletTypeToChainId[walletType]; |
| 229 | |
| 230 | bool isChainRegistered(int chainId) => _chains.containsKey(chainId); |
| 231 | |
| 232 | List<int> getRegisteredChainIds() => _chains.keys.toList(); |
| 233 | |
| 234 | List<ChainConfig> getAllChains() => _chains.values.toList(); |
| 235 | |
| 236 | List<WalletType> getRegisteredWalletTypes() => _walletTypeToChainId.keys.toList(); |
| 237 | } |