const fs = require('fs')
const path = require('path')

// 指法文件夹位置
// const filesDir = path.join(__dirname, './fingering')
// const filesDir = path.join(__dirname, './pages/detail')
const filesDir = path.join(__dirname, './images')
console.log("🚀 ~ filesDir:", filesDir, path.join(filesDir, 'index.json'))

// 需要处理的文件后缀
const suffixs = ['png', 'svg']

const files = fs.readdirSync(path.resolve(filesDir))
// console.log("🚀 ~ files:", files)

;(async function() {
  let i = 0
  const exportJson = {}
  for (const file of files) {
    const suffix = file.slice(file.lastIndexOf('.') + 1)
    // console.log("🚀 ~ suffix:", suffix)
    if (!suffixs.includes(suffix)) continue;
    const dirFullPath = path.join(filesDir, file)
    // console.log("🚀 ~ dirFullPath:", dirFullPath)
    fs.stat(dirFullPath, (err, stat) => {
      if (!err && !stat.isDirectory()) {
        const fileNames = file.split('.')
        const fileBuffer =  fs.readFileSync(dirFullPath)
        console.log("🚀 ~ fileBuffer:", fileNames[0])
        const fileType = suffix === 'svg' ? 'svg+xml' : suffix
        const str = `data:image/${fileType};base64,` + Buffer.from(fileBuffer, 'binary').toString('base64')
        exportJson[fileNames[0]] = str
        
        fs.writeFileSync(path.join(filesDir, 'index.json'), JSON.stringify(exportJson, null, 2))
      }
    })
    // if (i === 0) break;
  }
  
})()