Function preloadMarkdown

packages/session-ui/src/components/markdown-cache.tsx:55–78

(
  text: string,
  cacheKey: string,
  parser: { parse(text: string): string | Promise<string> },
)

}

export async function preloadMarkdown(
  text: string,
  cacheKey: string,
  parser: { parse(text: string): string | Promise<string> },
) {
  await Promise.all(
    project(undefined, text, false).blocks.map(async (block, index) => {
      if (block.mode === "code") return
      const key = `${cacheKey}:${index}:${block.mode}`
      const cached = getCachedMarkdown(key)
      if (cached?.raw === block.raw) {
        touchCachedMarkdown(key, cached)
        return
      }
      const hash = checksum(block.raw)
      if (!hash) return
      touchCachedMarkdown(key, {
        raw: block.raw,
        hash,
        html: sanitizeMarkdown(await Promise.resolve(parser.parse(block.src))),
      })
    }),
  )
}