feat: integrate Pi backend and Pi Web

2026-10-04 03:29:33 +00:00 · 2026-07-30 19:37:53 +08:00
commit 7392ab9dd7
1390 changed files with 337197 additions and 0 deletions
@@ -0,0 +1,73 @@
+export const TEXT_PREVIEW_MAX_BYTES = 256 * 1024;
+export const IMAGE_PREVIEW_MAX_BYTES = 10 * 1024 * 1024;
+export const DOCX_PREVIEW_MAX_BYTES = 10 * 1024 * 1024;
+
+export type DocumentPreviewKind = "pdf" | "docx";
+
+export const IMAGE_EXT_TO_MIME: Record<string, string> = {
+  png: "image/png",
+  jpg: "image/jpeg",
+  jpeg: "image/jpeg",
+  gif: "image/gif",
+  webp: "image/webp",
+  svg: "image/svg+xml",
+  bmp: "image/bmp",
+  ico: "image/x-icon",
+  avif: "image/avif",
+};
+
+export const AUDIO_EXT_TO_MIME: Record<string, string> = {
+  mp3: "audio/mpeg",
+  wav: "audio/wav",
+  ogg: "audio/ogg",
+  oga: "audio/ogg",
+  opus: "audio/ogg",
+  m4a: "audio/mp4",
+  aac: "audio/aac",
+  flac: "audio/flac",
+  weba: "audio/webm",
+  webm: "audio/webm",
+};
+
+export const DOCUMENT_EXT_TO_MIME: Record<DocumentPreviewKind, string> = {
+  pdf: "application/pdf",
+  docx: "application/vnd.openxmlformats-officedocument.wordprocessingml.document",
+};
+
+function getBaseName(filePath: string): string {
+  return filePath.replace(/\\/g, "/").split("/").pop() ?? "";
+}
+
+export function getFileExt(filePath: string): string {
+  return getBaseName(filePath).toLowerCase().split(".").pop() ?? "";
+}
+
+export function getImageMime(filePath: string): string | null {
+  return IMAGE_EXT_TO_MIME[getFileExt(filePath)] ?? null;
+}
+
+export function getAudioMime(filePath: string): string | null {
+  return AUDIO_EXT_TO_MIME[getFileExt(filePath)] ?? null;
+}
+
+export function getDocumentMime(filePath: string): string | null {
+  return DOCUMENT_EXT_TO_MIME[getFileExt(filePath) as DocumentPreviewKind] ?? null;
+}
+
+export function documentPreviewKind(filePath: string): DocumentPreviewKind | null {
+  const ext = getFileExt(filePath);
+  if (ext === "pdf" || ext === "docx") return ext;
+  return null;
+}
+
+export function isImagePath(filePath: string): boolean {
+  return getImageMime(filePath) !== null;
+}
+
+export function isAudioPath(filePath: string): boolean {
+  return getAudioMime(filePath) !== null;
+}
+
+export function isDocumentPreviewPath(filePath: string): boolean {
+  return documentPreviewKind(filePath) !== null;
+}