// import { fetch } from 'bun';
import type { IEventInfo, Player } from "./types";
import * as cheerio from "cheerio";
import fs from 'fs';
import path from 'path';
import { chunk } from 'lodash';

const BASE_URL = `https://kaiqiuwang.cc`; 
/**
 * @param tagid 俱乐部 ID
 */
export async function listEvent(tagid: string): Promise<IEventInfo[]> {
  return parseEventList(await fetchEventListHTML(tagid));
  return parseEventList(
    fs.readFileSync(
      path.resolve(__dirname, '..', '__test__', 'data', 'view-event.html')
    ).toString()
  );
}

/**
 * @param tagid 俱乐部 ID
 * @return HTML
 */
export async function fetchEventListHTML(tagid: string) {
  const url = `${BASE_URL}/home/space.php?do=mtag&tagid=${tagid}&view=event`;
  const resp = await fetch(url);
  return resp.text() ?? '';
}

export function parseEventList(html: string) {
  const $ = cheerio.load(html);
  const blockList = $('div.event_list > ol > li');
  const list: IEventInfo[] = [];
  for (const block of blockList) {
    const titleEl = $(block).find('.event_title');
    const title = titleEl.text();
    const url = $(titleEl).find('a').attr('href') ?? '';
    const startDate = $(block).find('ul li:nth-of-type(1)').text().replace('比赛开始: \\t', '').trim();
    const place = $(block).find('ul li:nth-of-type(2)').text().replace('比赛地点: \\t', '').trim();
    const event: IEventInfo = {
      title,
      info: [startDate, place],
      url: `${BASE_URL}/home/${url}`,
      matchId: /\S+-(\d+).html$/.exec(url)?.[1] ?? '',
    }
    list.push(event);
  }
  return list;
}

/**
 * 
 * @param matchId 比赛 ID
 * @returns HTML
 */
export async function fetchEventContentHTML(matchId: string) {
  const url = `${BASE_URL}/home/space.php?do=event&id=${matchId}&view=member&status=2`;
  const resp = await fetch(url);
  return resp.text() ?? ''
}

export function parseEventInfo(html: string) {
  const $ = cheerio.load(html);
  const itemHref = $('.sub_menu a.active').attr('href') ?? '';
  const itemId = /\S+item_id=(\d+)$/.exec(itemHref)?.[1] ?? '';
  const players: Player[] = [];
  const playersEl = $('.thumb');
  for (const player of playersEl) {
    const img = $(player).find('.image img').attr('src') ?? '';
    const name = $(player).find('h6').text().trim();
    const info = $(player).find('p:nth-of-type(2)').text().replace(/\s/g, '');
    const score = Number(/^.*?\b(\d+)\b/.exec(info)?.[1]);
    players.push({ name, avatar: img, score, info });
  }
  return {
    itemId,
    players,
  }
}

export async function getMatchInfo(matchId: string) {
  return parseEventInfo(await fetchEventContentHTML(matchId));
  return parseEventInfo(
    fs
      .readFileSync(
        path.resolve(__dirname, '..', '__test__', 'data', 'view-event-content.html')
      )
      .toString()
  );
}

export function sneckGroup(size: number, groupLen: number) {
  const indexArray = new Array<number>(size).fill(0).map((_, i) => i);
  const chunckSize = Math.round((size / groupLen));
  const chunckedGroup = chunk(indexArray, groupLen);
  const reversedGroup = chunckedGroup.map((e, i) => {
    if (i % 2 === 0) return e;
    return e.toReversed();
  });
  const newGroups: number[][] = [];
  for (let groupIndex = 0; groupIndex < groupLen; groupIndex++) {
    const group: number[] = [];
    for (let colIndex = 0; colIndex < chunckSize; colIndex++) {
      const data = reversedGroup[colIndex]?.[groupIndex];
      group.push(data === undefined ? NaN : data);
    }
    newGroups.push(group);
  }
  return newGroups;
}