import fs from 'fs'

interface IconfontJson {
  font_family: string;
  css_prefix_text: string;
  glyphs: {
    icon_id: string
    font_class: string
    unicode: string
    name: string
  }[];
}

export default function iconfontDts(outFile: string) {
  return function (content: string) {
    const json = JSON.parse(content) as IconfontJson
    const names = json.glyphs.map(glyph => glyph.font_class)
    console.log('正在生成文件：', outFile)
    const dts = `export {}

declare global {
  namespace IconfontTypes {
    type name = ${names.map(name => `'${name}'`).join('\n        | ')}
  }
}
`
    fs.writeFileSync(outFile, dts, {encoding: 'utf-8'})
    console.log('文件生成完成')

  }
}