hypixel-auction-notifier/src/helperFunctions.ts

// utils.ts
import nbt from 'prismarine-nbt';
import { Item } from './Item';

import { loadConfig } from './configLoader';
const config = loadConfig();

// If you have a defined structure for your config file, feel free to refine this type.
interface ConfigType {
  data: {
    minPriceForRawcraft: number;
    [key: string]: any;
  };
  filters: {
    EnchantThreshold: Record<string, number>;
    EnchantThresholdConditionalBypass: Record<string, Record<string, number>>;
    [key: string]: any;
  };
}

interface NbtData {
  [key: string]: any;
}

// Keep track of current intervals by name
let currentAsyncIntervals: Record<string, boolean> = {};

type ProfitItem = {
  RCProfit: number;
  RCPP: number;
  snipeProfit: number;
  snipePP: number;
};

function numberWithCommas(x: number | string): string {
  return x.toString().replace(/\B(?=(\d{3})+(?!\d))/g, ',');
}

function addNotation(type: string, value: number): string {
  let returnVal: string = value.toString();
  let notList: string[] = [];

  if (type === 'shortScale') {
    notList = [' Thousand', ' Million', ' Billion', ' Trillion', ' Quadrillion', ' Quintillion'];
  } else if (type === 'oneLetters') {
    notList = ['K', 'M', 'B', 'T'];
  }

  let checkNum = 1000;
  if (type !== 'none' && type !== 'commas') {
    let notValue = notList[notList.length - 1] ?? '';
    for (let u = notList.length; u >= 1; u--) {
      notValue = notList.shift() ?? '';
      for (let o = 3; o >= 1; o--) {
        if (value >= checkNum) {
          // Use a fixed decimal approach
          returnVal = (
            +(Math.floor(value / (checkNum / 100)) / Math.pow(10, o)) * 10
          ).toFixed(o - 1) + notValue;
        }
        checkNum *= 10;
      }
    }
  } else {
    returnVal = numberWithCommas(value.toFixed(0));
  }

  return returnVal;
}

async function getParsed(encoded: string): Promise<any> {
  return new Promise((resolve, reject) => {
    const buf = Buffer.from(encoded, 'base64');
    // The callback signature must match the prismarine-nbt types:
    nbt.parse(buf, (err: Error | null, data) => {
      if (err) return reject(err);
      resolve(nbt.simplify(data));
    });
  });
}

function getProfit(price: number, rcCost: number, lbin: number): ProfitItem {
  const profitItem: ProfitItem = {
    RCProfit: 0,
    RCPP: 0,
    snipeProfit: 0,
    snipePP: 0,
  };

  if (price >= 1_000_000) {
    profitItem.RCProfit = lbin + rcCost - price - (lbin + rcCost) * 0.02;
    profitItem.RCPP = parseFloat(((profitItem.RCProfit * 100) / lbin).toFixed(1));
    profitItem.snipeProfit = lbin - price - lbin * 0.02;
    profitItem.snipePP = parseFloat(((profitItem.snipeProfit * 100) / lbin).toFixed(1));
  } else {
    profitItem.RCProfit = lbin + rcCost - price - (lbin + rcCost) * 0.01;
    profitItem.RCPP = parseFloat(((profitItem.RCProfit * 100) / lbin).toFixed(1));
    profitItem.snipeProfit = lbin - price - lbin * 0.01;
    profitItem.snipePP = parseFloat(((profitItem.snipeProfit * 100) / lbin).toFixed(1));
  }

  return profitItem;
}

function splitNumber(num: number = 1, parts: number = 1): number[] {
  const n: number = Math.floor(num / parts);
  const arr: number[] = [];

  for (let i = 0; i < parts; i++) {
    arr.push(n);
  }

  if (arr.reduce((a, b) => a + b, 0) === num) {
    return arr;
  }
  for (let i = 0; i < parts; i++) {
    arr[i]++;
    if (arr.reduce((a, b) => a + b, 0) === num) {
      return arr;
    }
  }
  // If we still haven’t balanced it out, it’ll just return this array
  return arr;
}

interface ItemType {
  itemData: {
    id: string;
    enchants?: Record<string, number>;
    aow?: boolean;
    recomb?: boolean;
    hpbs?: number;
    fpbs?: number;
  };
  auctionData: {
    lbin: number;
    category?: string;
  };
  [key: string]: any;
}

interface LbinsType {
  [key: string]: {
    lbin: number;
  };
}

interface BazaarPriceType {
  [key: string]: number;
}

function getRawCraft(
  item: Item,
  bazaarPrice: BazaarPriceType,
  lbins: LbinsType
): number {
  let price = 0;

  const typedConfig = config as ConfigType;

  const ignoreMatch: string =
    Object.keys(typedConfig.filters.EnchantThresholdConditionalBypass ?? {}).find((key) => {
      return item.itemData.id.includes(key);
    }) ?? '';

  if (item.auctionData.lbin < typedConfig.data.minPriceForRawcraft) return 0;

  const isInIgnore = !!ignoreMatch;

  if (item.itemData.enchants && !item.itemData.id.includes(';')) {
    for (const enchant of Object.keys(item.itemData.enchants)) {
      const degree = item.itemData.enchants[enchant];
      const badEnchant =
        typeof typedConfig.filters.EnchantThreshold[enchant] === 'number'
          ? degree >= typedConfig.filters.EnchantThreshold[enchant]
          : false;

      if (isInIgnore) {
        const enchantMinValue =
          typedConfig.filters.EnchantThresholdConditionalBypass[ignoreMatch]?.[enchant];
        if (enchantMinValue && degree <= enchantMinValue) continue;
      }

      if (badEnchant) {
        price += lbins[`${enchant.toUpperCase()};${degree.toString()}`]
          ? lbins[`${enchant.toUpperCase()};${degree.toString()}`].lbin * 0.5
          : 0;
      }
    }
  }

  if (item.itemData.aow) {
    price += lbins['THE_ART_OF_WAR'].lbin * 0.3;
  }

  if (
    item.itemData.recomb &&
    ['weapon', 'armor', 'accessories'].includes(item.auctionData.category ?? '')
  ) {
    price += bazaarPrice['RECOMBOBULATOR_3000'] * 0.5;
  }

  price += (item.itemData.hpbs ?? 0) * bazaarPrice['HOT_POTATO_BOOK'] * 0.05;
  price += (item.itemData.fpbs ?? 0) * bazaarPrice['FUMING_POTATO_BOOK'] * 0.1;

  return price;
}

// Schedules a recurring async task.
async function asyncInterval(
  asyncTask: () => Promise<void>,
  intervalName: string,
  timeout: number
): Promise<void> {
  currentAsyncIntervals[intervalName] = true;
  setTimeout(async function () {
    if (!currentAsyncIntervals[intervalName]) return;
    await asyncTask();
    await asyncInterval(asyncTask, intervalName, timeout);
  }, timeout);
}

function stopAsyncInterval(intervalName: string): void {
  currentAsyncIntervals[intervalName] = false;
}

function currentIntervals(): Record<string, boolean> {
  return currentAsyncIntervals;
}

// Exports
export {
  addNotation,
  getParsed,
  getProfit,
  splitNumber,
  getRawCraft,
  asyncInterval,
  stopAsyncInterval,
  currentIntervals,
};