const { spider, parse } = require('fontmin-spider')

;(async () => {
  const basePath = '/home/site/'
  // Recursively read all html files in the /home/site/ directory
  // default: **/*.html
  await spider({ basePath })

  /* 
    // css
    p {
      font-family: 'fontName';
    }

    // html
    <p>Analyze which fonts are used on the page and eliminate the ones that are not used to get a smaller font file</p>
  */
  const files = ['/home/site/index.html', '/home/site/post/index.html', '/home/site/page/index.html']
  // It only parses, it does not compress
  const fontMaps = parse(basePath, files)
  console.log(fontMaps)
  /*
    {
      fontName: {
        selector: [ 'p' ],
        path: '/home/site/font/font-file.ttf',
        chars: 'Analyzewhicfotsrudpgm'
      }
      ....
    }
  */
})()

const { spider } = require('fontmin-spider')
function getCJK(str: string) {
  const reg =
    /[\u4e00-\u9fa5\u3040-\u30ff\u31f0-\u31ff\uff00-\uff9f\u3000-\u303f\uff01-\uff0f\uff1a-\uff20\uff3b-\uff40\uff5b-\uff60\uffe0-\uffe6]/g
  const cjkChars = str.match(reg)
  return cjkChars ? cjkChars.join('') : ''
}
;(async () => {
  const basePath = '/home/site/'
  // Recursively read all html files in the /home/site/ directory
  // default: **/*.html
  await spider({
    basePath,
    /**
     * Execute the filter function after parsing is complete
     * @param { { selector: string[]; path: string; chars: string } } declaredFamilyMap Font parameters
     */
    afterFilter(declaredFamilyMap) {
      for (const [, value] of Object.entries(declaredFamilyMap)) {
        value.chars = getCJK(value.chars)
      }
    }
  })
})()

const { spider, parse } = require('fontmin-spider')

;async () => {
  const basePath = '/home/site/'
  // Even if 'ABCDEFG' is not used, 'fontmin-spider' does not eliminate it and remains in the font file
  await spider({ basePath, reserveText: 'ABCDEFG' })

  // Settings for specific fonts only
  /* p {
      font-family: 'fontName';
    } 
  */
  await spider({ basePath, reserveText: { fontName: 'ABCDEFG', fontName2: '1234567890' } })
}