51 lines
1.5 KiB
TypeScript
51 lines
1.5 KiB
TypeScript
import Web3 from 'web3';
|
|
import { Web3Service } from '@app/_services/web3.service';
|
|
|
|
const abi: Array<any> = require('@src/assets/js/block-sync/data/AccountsIndex.json');
|
|
const web3: Web3 = Web3Service.getInstance();
|
|
|
|
export class AccountIndex {
|
|
contractAddress: string;
|
|
signerAddress: string;
|
|
contract: any;
|
|
|
|
constructor(contractAddress: string, signerAddress?: string) {
|
|
this.contractAddress = contractAddress;
|
|
this.contract = new web3.eth.Contract(abi, this.contractAddress);
|
|
if (signerAddress) {
|
|
this.signerAddress = signerAddress;
|
|
} else {
|
|
this.signerAddress = web3.eth.accounts[0];
|
|
}
|
|
}
|
|
|
|
public async totalAccounts(): Promise<number> {
|
|
return await this.contract.methods.entryCount().call();
|
|
}
|
|
|
|
public async haveAccount(address: string): Promise<boolean> {
|
|
return (await this.contract.methods.have(address).call()) !== 0;
|
|
}
|
|
|
|
public async last(numberOfAccounts: number): Promise<Array<string>> {
|
|
const count: number = await this.totalAccounts();
|
|
let lowest: number = count - numberOfAccounts;
|
|
if (lowest < 0) {
|
|
lowest = 0;
|
|
}
|
|
const accounts: Array<string> = [];
|
|
for (let i = count - 1; i >= lowest; i--) {
|
|
const account: string = await this.contract.methods.entry(i).call();
|
|
accounts.push(account);
|
|
}
|
|
return accounts;
|
|
}
|
|
|
|
public async addToAccountRegistry(address: string): Promise<boolean> {
|
|
if (!(await this.haveAccount(address))) {
|
|
return await this.contract.methods.add(address).send({ from: this.signerAddress });
|
|
}
|
|
return true;
|
|
}
|
|
}
|