import * as http from 'http';
import * as https from 'https';
import * as vscode from 'vscode';
const {
  generateKeyPairSync,
} = require('node:crypto')
const axios = require('axios');
const cheerio = require('cheerio');

export function fetch(url: string): Promise<string> {
  // determine the library to use (based on the url protocol)
  const lib = url.startsWith('https://') ? https : http;

  return new Promise((resolve, reject) => {
    lib.get(url, (response) => {
      // make sure the status code is 200
      if (response.statusCode !== 200) {
        reject(new Error(`Failed to load page, status code: ${response.statusCode}`));
        return;
      }

      let data = '';
      response.on('data', (chunk) => {
        data += chunk;
      });
      response.on('end', () => {
        resolve(data);
      });
    }).on('error', (err) => {
      reject(err);
    });
  });
}

export const Sleep = (ms: number) => {
  return new Promise(resolve => setTimeout(resolve, ms))
}

export async function getVsCodeCommitId(): Promise<string> {
    // 获取vscode version
    const version = vscode.version

    // 根据version提取相应的release页面中的commitid
    try{
      const { data } = await axios.get(`https://github.com/microsoft/vscode/releases/tag/${version}`);
    
      // Load the HTML into cheerio
      const $ = cheerio.load(data);
      // Find the <a> tag with the 'data-hovercard-type="commit"' attribute
      const commitLink = $('a[data-hovercard-type="commit"]');
      // Extract the href attribute and commit hash
      const href = commitLink.attr('href'); // href example:  /microsoft/vscode/commit/fabdb6a30b49f79a7aba0f2ad9df9b399473380f
      const commitHash = href.split('/').pop(); 

      return commitHash
    } catch(error)  {
      console.error('Failed to get commit id: ' + error)
      return "" 
    }
}