Function readFileAsBase64

src/renderer/src/hooks/useAttachment.ts:27–39

(file: File)

// 读取 File 对象为 base64
function readFileAsBase64(file: File): Promise<string> {
  return new Promise((resolve, reject) => {
    const reader = new FileReader()
    reader.onload = () => {
      const result = reader.result as string
      // 移除 data:xxx;base64, 前缀
      const base64 = result.split(',')[1]
      resolve(base64)
    }
    reader.onerror = reject
    reader.readAsDataURL(file)
  })
}

interface UseAttachmentResult {
  pendingAttachments: FileAttachment[]