106 lines
3.0 KiB
JavaScript
106 lines
3.0 KiB
JavaScript
const ethers = require('ethers');
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const RSVP = require('rsvp');
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const Healthcheck = require('./utils/healthcheck');
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const ABIS = {
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Contributors: require('./abis/Contributors.json'),
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Operator: require('./abis/Operator.json'),
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Registry: require('./abis/Registry.json'),
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Token: require('./abis/Token.json')
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};
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const RegistryAddress = require('./addresses/Registry.json');
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const Contracts = require('./contracts');
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const IPFS = require('./utils/ipfs')
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// Helpers
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function capitalize(word) {
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let [first, ...rest] = word;
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return `${first.toUpperCase()}${rest.join('')}`;
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}
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class Kredits {
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constructor(provider, signer, options = {}) {
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let { addresses, abis, ipfsConfig } = options;
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this.provider = provider;
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this.signer = signer;
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// by default we only need the registry address.
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// the rest is loaded from there in the init() function
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this.addresses = addresses || { Registry: RegistryAddress[this.provider.chainId.toString()] }; // chainID must be a string
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this.abis = abis || ABIS;
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this.ipfs = new IPFS(ipfsConfig);
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this.contracts = {};
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}
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init(names) {
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let contractsToLoad = names || Object.keys(ABIS);
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let addressPromises = contractsToLoad.map((contractName) => {
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return this.Registry.functions.getProxyFor(contractName).then((address) => {
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this.addresses[contractName] = address;
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}).catch((error) => {
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throw new Error(`Failed to get address for ${contractName} from registry at ${this.Registry.contract.address}
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- correct registry? does it have version entry? - ${error.message}`
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);
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});
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});
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return RSVP.all(addressPromises).then(() => { return this });
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}
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static setup(provider, signer, ipfsConfig = null) {
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console.log('Kredits.setup() is deprecated use new Kredits().init() instead');
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return new Kredits(provider, signer, { ipfsConfig: ipfsConfig }).init();
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}
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get Registry() {
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return this.contractFor('registry');
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}
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get Contributor() {
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// TODO: rename to contributor
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return this.contractFor('contributors');
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}
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get Contributors() {
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console.log('Contributors is deprecated use Contributor instead');
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return this.Contributor;
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}
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get Operator() {
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return this.contractFor('operator');
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}
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get Token() {
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return this.contractFor('token');
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}
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// Should be private
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contractFor(name) {
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if (this.contracts[name]) {
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return this.contracts[name];
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}
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const contractName = capitalize(name);
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const address = this.addresses[contractName];
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const abi = this.abis[contractName];
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if (!address || !abi) {
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throw new Error(`Address or ABI not found for ${contractName}`);
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}
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let signerOrProvider = this.signer || this.provider;
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let contract = new ethers.Contract(address, abi, signerOrProvider);
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this.contracts[name] = new Contracts[contractName](contract);
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this.contracts[name].ipfs = this.ipfs;
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return this.contracts[name];
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}
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healthcheck() {
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return new Healthcheck(this).check();
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}
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}
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module.exports = Kredits;
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