@fleupold/dex-contracts/build/esm/scripts/get_auction_elements.js

Contracts for dFusion multi-token batch auction exchange

import BN from "bn.js";
import { getOrdersPaginated } from "../src/onchain_reading";
import { factory } from "../src/logging";
const log = factory.getLogger("scripts.get_auction_elements");
const BatchExchange = artifacts.require("BatchExchange");
const argv = require("yargs")
    .option("expired", {
    type: "boolean",
    describe: "Also show expired orders",
})
    .option("covered", {
    type: "boolean",
    describe: "Only show orders that have some balance in the sell token",
})
    .option("tokens", {
    describe: "Filter only orders between the given tokens",
})
    .option("pageSize", {
    default: 100,
    describe: "The page size for the function getOrdersPaginated",
})
    .version(false).argv;
const COLORS = {
    NONE: "\x1b[0m",
    RED: "\x1b[31m",
    YELLOW: "\x1b[33m",
};
const formatAmount = function (amount) {
    const string = amount.toString();
    if (string.length > 4) {
        return `${string.substring(0, 2)} * 10^${string.length - 2}`;
    }
    else {
        return string;
    }
};
const colorForValidFrom = function (order, currentBatchId) {
    let color = COLORS.NONE;
    if (order.validFrom >= currentBatchId) {
        color = COLORS.RED;
        if (order.validFrom - 5 <= currentBatchId) {
            color = COLORS.YELLOW;
        }
    }
    return color;
};
const colorForValidUntil = function (order, currentBatchId) {
    let color = COLORS.NONE;
    if (order.validUntil - 5 <= currentBatchId) {
        color = COLORS.YELLOW;
        if (order.validUntil <= currentBatchId) {
            color = COLORS.RED;
        }
    }
    return color;
};
const colorForRemainingAmount = function (order) {
    if (order.priceDenominator.gt(new BN(0)) &&
        order.remainingAmount
            .mul(new BN(100))
            .div(order.priceDenominator)
            .lt(new BN(1))) {
        return COLORS.YELLOW;
    }
    else {
        return COLORS.NONE;
    }
};
const printOrder = function (order, currentBatchId) {
    /* eslint-disable no-console */
    console.log("{");
    console.log(`  user: ${order.user}`);
    console.log(`  sellTokenBalance: ${formatAmount(order.sellTokenBalance)}`);
    console.log(`  buyToken: ${order.buyToken}`);
    console.log(`  sellToken: ${order.sellToken}`);
    console.log(`  ${colorForValidFrom(order, currentBatchId)}validFrom: ${new Date(order.validFrom * 300 * 1000)}${COLORS.NONE}`);
    console.log(`  ${colorForValidUntil(order, currentBatchId)}validUntil: ${new Date(order.validUntil * 300 * 1000)}${COLORS.NONE}`);
    console.log(`  price: Sell ${formatAmount(order.priceDenominator)} for at least ${formatAmount(order.priceNumerator)}`);
    console.log(`  ${colorForRemainingAmount(order)}remaining: ${formatAmount(order.remainingAmount)}${COLORS.NONE}`);
    console.log("}");
    /* eslint-enable no-console */
};
module.exports = async (callback) => {
    try {
        const exchange = await BatchExchange.deployed();
        log.info("Retrieving auction elements from EVM. This may take a while...");
        let auctionElementsDecoded = await getOrdersPaginated(exchange.contract, argv.pageSize);
        const batchId = (await exchange.getCurrentBatchId()).toNumber();
        if (!argv.expired) {
            auctionElementsDecoded = auctionElementsDecoded.filter((order) => order.validUntil >= batchId);
        }
        if (argv.covered) {
            auctionElementsDecoded = auctionElementsDecoded.filter((order) => !order.sellTokenBalance.isZero());
        }
        if (argv.tokens) {
            const tokens = new Set(argv.tokens.split(",").map((t) => parseInt(t.trim())));
            auctionElementsDecoded = auctionElementsDecoded.filter((order) => tokens.has(order.buyToken) && tokens.has(order.sellToken));
        }
        auctionElementsDecoded.forEach((order) => printOrder(order, batchId));
        log.info(`Found ${auctionElementsDecoded.length} orders`);
        callback();
    }
    catch (error) {
        callback(error);
    }
};