backend/src/services/lab8/task2.service.js - main - Cooolprogrammers/web-nodejs-labs

backend/src/services/lab8/task2.service.js

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18 дек 2025, 07:59

18 дек 2025, 07:59f2c4f06

import fs from "fs/promises";
import path from "path";
import { fileURLToPath } from "url";

const __filename = fileURLToPath(import.meta.url);
const __dirname = path.dirname(__filename);

const dataDir = path.join(__dirname, "../../../data/lab8/task2/");
const cupFile = path.join(dataDir, "cup.txt");
const groupsJson = path.join(dataDir, "groups.json");
const stadiumJson = path.join(dataDir, "stadium.json");

class Task2Service {

  async processCupFile() {
    const raw = await fs.readFile(cupFile, "utf8");
    const lines = raw.split("\n").map(l => l.trim());

    const groups = {};
    const stadiums = {};

    let currentGroup = null;

    // ---------- РЕГУЛЯРКА ПОД ТВОЙ ФОРМАТ ----------
    const matchRegex = /^\(\d+\)\s+(\w+)\s+(\w+\/\d+)\s+(\d{2}:\d{2})\s+(.+?)\s+(\d+)-(\d+)\s*\([^)]+\)\s+(.+?)\s+@\s+(.+)$/;

    for (let line of lines) {

      // --- Определяем группу ---
      if (/^Group\s+[A-Z]/.test(line)) {
        const group = line.split(" ")[1];
        currentGroup = group;
        groups[group] = { group, matches: [] };
        continue;
      }

      // --- Ищем матч ---
      const m = line.match(matchRegex);
      if (m && currentGroup) {

        const [
          _,
          weekday,
          dateShort,
          time,
          team1,
          score1,
          score2,
          team2,
          stadiumFull
        ] = m;

        // превращаем дату формата "Nov/20" → "2022-11-20"
        const months = {
          Jan: "01", Feb: "02", Mar: "03", Apr: "04",
          May: "05", Jun: "06", Jul: "07", Aug: "08",
          Sep: "09", Oct: "10", Nov: "11", Dec: "12",
        };

        const [mon, day] = dateShort.split("/");
        const date = `2022-${months[mon]}-${day.padStart(2, "0")}`;

        const stadium = stadiumFull.split(",")[0].trim();

        const match = {
          date,
          time,
          team1: team1.trim(),
          team2: team2.trim(),
          score1: Number(score1),
          score2: Number(score2),
          stadium
        };

        groups[currentGroup].matches.push(match);

        if (!stadiums[stadium]) {
          stadiums[stadium] = { stadium, matches: [] };
        }

        stadiums[stadium].matches.push({
          group: currentGroup,
          ...match
        });
      }
    }

    await fs.writeFile(groupsJson, JSON.stringify(groups, null, 2), "utf8");
    await fs.writeFile(stadiumJson, JSON.stringify(stadiums, null, 2), "utf8");

    return {
      groupsCount: Object.keys(groups).length,
      stadiumsCount: Object.keys(stadiums).length
    };
  }

  async getGroups() {
    try {
      return JSON.parse(await fs.readFile(groupsJson, "utf8"));
    } catch {
      return {};
    }
  }

  async getStadiums() {
    try {
      return JSON.parse(await fs.readFile(stadiumJson, "utf8"));
    } catch {
      return {};
    }
  }
}

export default new Task2Service();