75 lines
2.1 KiB
JavaScript
75 lines
2.1 KiB
JavaScript
const util = require('util');
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const Web3 = require('web3');
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const utils = require('j7/utils');
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const event = require('j7/event');
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const metaFactory = require('./metadata/factory');
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const constant = require("./constant");
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const { ERC20ABI } = require("./ERC20ABI");
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class BlockChain {
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constructor() {
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this.netId = 0;
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this.coinInstanceHash = {};
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}
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async initInstance(user, address, jsonUrl) {
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const json = utils.readJsonFromFile(jsonUrl);
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return new this.web3.eth.Contract(
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json.abi,
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address,
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{ from: user }
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);
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}
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async init() {
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this.web3 = new Web3(metaFactory.getWeb3Conf()['block_server']);
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this.web3.eth.handleRevert = true;
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this.web3.eth.accounts.wallet.add(metaFactory.getPrivateKey());
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for (const data of metaFactory.getContracts()) {
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this[`${data.name}Instance`] = await this.initInstance
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(metaFactory.getUserAddress(), data.address, data.json);
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this[`${data.name}InstanceBuy`] = await this.initInstance
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(metaFactory.getUserAddress(), data.address, data.json);
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}
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console.log(metaFactory.getUserAddress());
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event.emitEvent(constant.BC_INITIALIZED_EVENT);
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}
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async getNetId() {
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return await this.web3.eth.getChainId();
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}
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async getCoinInstance(address) {
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if (this.coinInstanceHash[address]) {
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return this.coinInstanceHash[address];
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}
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const instance = new this.web3.eth.Contract(
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ERC20ABI,
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address,
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{
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from: metaFactory.getUserAddress()
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}
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);
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this.coinInstanceHash[address] = instance;
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return instance;
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}
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async increaseAllowance(address, price) {
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const coinInstance = await this.getCoinInstance(address);
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const mallAddress = metaFactory.getContractByName('mall')['address'];
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const res = await coinInstance.methods.increaseAllowance(mallAddress, price).send({ gas: 1000000 });
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console.log('increaseAllowance', res);
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}
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async getBalance(address) {
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const coinInstance = await this.getCoinInstance(address);
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return await coinInstance.methods.balanceOf(metaFactory.getUserAddress()).call();
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}
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}
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module.exports = new BlockChain();
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