55 lines
1.9 KiB
TypeScript
55 lines
1.9 KiB
TypeScript
import {Injectable} from '@angular/core';
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import {CICRegistry} from 'cic-client';
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import {TokenRegistry} from '@app/_eth';
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import {HttpClient} from '@angular/common/http';
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import {RegistryService} from '@app/_services/registry.service';
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import {Token} from '@app/_models';
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@Injectable({
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providedIn: 'root',
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})
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export class TokenService {
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registry: CICRegistry;
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tokenRegistry: TokenRegistry;
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onload: (status: boolean) => void;
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constructor(private httpClient: HttpClient) {}
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async init(): Promise<void> {
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this.registry = await RegistryService.getRegistry();
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this.registry.onload = async (address: string): Promise<void> => {
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this.tokenRegistry = new TokenRegistry(
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await this.registry.getContractAddressByName('TokenRegistry')
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);
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this.onload(this.tokenRegistry !== undefined);
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};
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}
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async getTokens(): Promise<Array<Token>> {
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const count: number = await this.tokenRegistry.totalTokens();
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const tokens: Array<Token> = [];
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for (let i = 0; i < count; i++) {
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const token: any = {};
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token.address = await this.tokenRegistry.entry(i);
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const tokenContract = await this.registry.addToken(token.address);
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token.name = await tokenContract.methods.name().call();
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token.symbol = await tokenContract.methods.symbol().call();
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token.address = await this.tokenRegistry.entry(i);
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token.supply = await tokenContract.methods.totalSupply().call();
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token.decimals = await tokenContract.methods.decimals().call();
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tokens.push(token);
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}
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return tokens;
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}
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async getTokenBySymbol(symbol: string): Promise<Token> {
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const tokens: Array<Token> = await this.getTokens();
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return tokens.find(token => token.symbol === symbol);
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}
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async getTokenBalance(address: string): Promise<(address: string) => Promise<number>> {
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const sarafuToken = await this.registry.addToken(await this.tokenRegistry.entry(0));
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return await sarafuToken.methods.balanceOf(address).call();
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}
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}
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