All files / utils file-type.ts

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  export type FilePreviewType = "pdf" | "image" | "video" | "audio";
 
const MIME_CATEGORY_MAP: Partial<Record<string, FilePreviewType>> = {
  image: "image",
  video: "video",
  audio: "audio",
};
 
export function getFilePreviewType(file: File): FilePreviewType {
  const category = file.type.split("/")[0];
  return MIME_CATEGORY_MAP[category] ?? "pdf";
}