Function saveMarkdownWithLocalImages

tools.ts:68–126

(markdown: string, filename?: string)

}

export async function saveMarkdownWithLocalImages(markdown: string, filename?: string) {
  if (!markdown) return

  // 匹配 markdown 中的图片链接 ![alt](url)
  const imageRegex = /!\[([^\]]*)\]\(([^)]+)\)/g
  const images: { alt: string; url: string; index: number }[] = []
  let match

  while ((match = imageRegex.exec(markdown)) !== null) {
    images.push({
      alt: match[1],
      url: match[2],
      index: match.index
    })
  }

  if (images.length === 0) {
    // 没有图片，直接保存
    saveMarkdown(markdown, filename)
    return
  }

  // 下载所有图片并转换为 base64
  const imagePromises = images.map(async (img) => {
    try {
      const response = await fetch(img.url)
      const blob = await response.blob()
      return new Promise<{ url: string; base64: string }>((resolve) => {
        const reader = new FileReader()
        reader.onloadend = () => {
          resolve({
            url: img.url,
            base64: reader.result as string
          })
        }
        reader.readAsDataURL(blob)
      })
    } catch (error) {
      console.error(`Failed to download image: ${img.url}`, error)
      return { url: img.url, base64: img.url } // 失败时保持原 URL
    }
  })

  const downloadedImages = await Promise.all(imagePromises)

  // 替换 markdown 中的图片 URL 为 base64
  let updatedMarkdown = markdown
  downloadedImages.forEach((img) => {
    updatedMarkdown = updatedMarkdown.replace(
      new RegExp(`\\(${img.url.replace(/[.*+?^${}()|[\]\\]/g, "\\$&")}\\)`, "g"),
      `(${img.base64})`
    )
  })

  // 保存更新后的 markdown
  const blob = new Blob([updatedMarkdown], { type: "text/markdown;charset=utf-8" })
  filename = filename || "CodeBox-page"
  saveAs(blob, `${filename}-${dayjs().format("YYYY-MM-DD HH:mm:ss")}.md`)