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import { Web3Wrapper } from '@0xproject/web3-wrapper';
import { Provider } from 'ethereum-types';
import * as _ from 'lodash';
import { artifacts } from './artifacts';
import { ERC20ProxyWrapper } from './contract_wrappers/erc20_proxy_wrapper';
import { ERC20TokenWrapper } from './contract_wrappers/erc20_token_wrapper';
import { ERC721ProxyWrapper } from './contract_wrappers/erc721_proxy_wrapper';
import { ERC721TokenWrapper } from './contract_wrappers/erc721_token_wrapper';
import { EtherTokenWrapper } from './contract_wrappers/ether_token_wrapper';
import { ContractWrappersConfigSchema } from './schemas/contract_wrappers_config_schema';
import { contractWrappersPrivateNetworkConfigSchema } from './schemas/contract_wrappers_private_network_config_schema';
import { contractWrappersPublicNetworkConfigSchema } from './schemas/contract_wrappers_public_network_config_schema';
import { ContractWrappersConfig } from './types';
import { assert } from './utils/assert';
/**
* The ContractWrappers class contains smart contract wrappers helpful when building on 0x protocol.
*/
export class ContractWrappers {
/**
* An instance of the ERC20TokenWrapper class containing methods for interacting with any ERC20 token smart contract.
*/
public erc20Token: ERC20TokenWrapper;
/**
* An instance of the ERC721TokenWrapper class containing methods for interacting with any ERC721 token smart contract.
*/
public erc721Token: ERC721TokenWrapper;
/**
* An instance of the EtherTokenWrapper class containing methods for interacting with the
* wrapped ETH ERC20 token smart contract.
*/
public etherToken: EtherTokenWrapper;
/**
* An instance of the ERC20ProxyWrapper class containing methods for interacting with the
* erc20Proxy smart contract.
*/
public erc20Proxy: ERC20ProxyWrapper;
/**
* An instance of the ERC721ProxyWrapper class containing methods for interacting with the
* erc721Proxy smart contract.
*/
public erc721Proxy: ERC721ProxyWrapper;
private _web3Wrapper: Web3Wrapper;
/**
* Instantiates a new ContractWrappers instance.
* @param provider The Provider instance you would like the 0x.js library to use for interacting with
* the Ethereum network.
* @param config The configuration object. Look up the type for the description.
* @return An instance of the ContractWrappers class.
*/
constructor(provider: Provider, config: ContractWrappersConfig) {
assert.isWeb3Provider('provider', provider);
assert.doesConformToSchema('config', config, ContractWrappersConfigSchema, [
contractWrappersPrivateNetworkConfigSchema,
contractWrappersPublicNetworkConfigSchema,
]);
const artifactJSONs = _.values(artifacts);
const abiArrays = _.map(artifactJSONs, artifact => artifact.compilerOutput.abi);
const txDefaults = {
gasPrice: config.gasPrice,
};
this._web3Wrapper = new Web3Wrapper(provider, txDefaults);
_.forEach(abiArrays, abi => {
this._web3Wrapper.abiDecoder.addABI(abi);
});
this.erc20Proxy = new ERC20ProxyWrapper(
this._web3Wrapper,
config.networkId,
config.tokenTransferProxyContractAddress,
);
this.erc721Proxy = new ERC721ProxyWrapper(
this._web3Wrapper,
config.networkId,
config.tokenTransferProxyContractAddress,
);
this.erc20Token = new ERC20TokenWrapper(this._web3Wrapper, config.networkId, this.erc20Proxy);
this.erc721Token = new ERC721TokenWrapper(this._web3Wrapper, config.networkId, this.erc721Proxy);
this.etherToken = new EtherTokenWrapper(this._web3Wrapper, config.networkId, this.erc20Token);
}
/**
* Sets a new web3 provider for 0x.js. Updating the provider will stop all
* subscriptions so you will need to re-subscribe to all events relevant to your app after this call.
* @param provider The Web3Provider you would like the 0x.js library to use from now on.
* @param networkId The id of the network your provider is connected to
*/
public setProvider(provider: Provider, networkId: number): void {
this._web3Wrapper.setProvider(provider);
(this.erc20Token as any)._invalidateContractInstances();
(this.erc20Token as any)._setNetworkId(networkId);
(this.erc20Proxy as any)._invalidateContractInstance();
(this.erc20Proxy as any)._setNetworkId(networkId);
(this.etherToken as any)._invalidateContractInstance();
(this.etherToken as any)._setNetworkId(networkId);
}
/**
* Get the provider instance currently used by 0x.js
* @return Web3 provider instance
*/
public getProvider(): Provider {
return this._web3Wrapper.getProvider();
}
}
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