'use strict';
const { ERC20 } = require('../utils/erc20');
const { USDTAddr, VICAddr, startBlock, VIC_DECIMAL, USDT_DECIMAL } = require('./constant');

const getUSDTTxList = async address => {
    if (!address) return null;
    const res = await ERC20.getActions(address, USDTAddr, startBlock).catch(err => {
        if (err) return [];
    });
    return res.filter(tx => tx.tokenName === 'Tether USD' && tx.tokenSymbol === 'USDT' && tx.to === address && tx.from !== address); //只取转入到本地址的
};
const getVICTxList = async address => {
    if (!address) return null;
    const res = await ERC20.getActions(address, VICAddr, startBlock).catch(err => {
        if (err) return [];
    });
    return res.filter(tx => tx.tokenName === 'Value of Individual' && tx.tokenSymbol === 'VIC' && tx.to === address && tx.from !== address); //只取转入到本地址的
};

const parseETHTx = txList => {
    if (!txList || !Array.isArray(txList)) return [];
    return txList.map(tx => {
        tx.amount = (+tx.value) / VIC_DECIMAL;
        return tx;
    });
};
// usdt
const getNewUSDTDepositTx = (usdtTx = [], fundList = []) => {
    if (fundList.length > usdtTx.length) return null;
    // fundList的顺序应该与usdtTx的顺序一致，所以只要截取新的
    const newUsdtTxList = usdtTx.slice(fundList.length);
    return parseETHTx(newUsdtTxList);
};
// vic
const getNewDepositTx = (vicTx = [], fundList = []) => {
    if (fundList.length >= vicTx.length) return null;
    const newList = [];
    const existedFund = fundList.map(fund => fund.txHash).filter(f => f !== null);
    for (let i = 0, len = vicTx.length; i < len; ++i) {
        if (!existedFund.includes(vicTx[i].hash)) {
            newList.push(vicTx[i]);
        }
    }
    return parseETHTx(newList);
};

module.exports = {
    getVICTxList,
    getUSDTTxList,
    getNewDepositTx
};