feature: Allow importing hoarder's own bookmark file. Fixes #527

2 files changed, 89 insertions, 0 deletions

diff --git a/apps/web/lib/exportBookmarks.ts b/apps/web/lib/exportBookmarks.ts
new file mode 100644
index 00000000..dd1913fb
--- /dev/null
+++ b/apps/web/lib/exportBookmarks.ts
@@ -0,0 +1,60 @@
+import { z } from "zod";
+
+import { BookmarkTypes, ZBookmark } from "@hoarder/shared/types/bookmarks";
+
+export const zExportBookmarkSchema = z.object({
+  createdAt: z.number(),
+  title: z.string().nullable(),
+  tags: z.array(z.string()),
+  content: z
+    .discriminatedUnion("type", [
+      z.object({
+        type: z.literal(BookmarkTypes.LINK),
+        url: z.string(),
+      }),
+      z.object({
+        type: z.literal(BookmarkTypes.TEXT),
+        text: z.string(),
+      }),
+    ])
+    .nullable(),
+  note: z.string().nullable(),
+});
+
+export const zExportSchema = z.object({
+  bookmarks: z.array(zExportBookmarkSchema),
+});
+
+export function toExportFormat(
+  bookmark: ZBookmark,
+): z.infer<typeof zExportBookmarkSchema> {
+  let content = null;
+  switch (bookmark.content.type) {
+    case BookmarkTypes.LINK: {
+      content = {
+        type: bookmark.content.type,
+        url: bookmark.content.url,
+      };
+      break;
+    }
+    case BookmarkTypes.TEXT: {
+      content = {
+        type: bookmark.content.type,
+        text: bookmark.content.text,
+      };
+      break;
+    }
+    // Exclude asset types for now
+  }
+  return {
+    createdAt: Math.floor(bookmark.createdAt.getTime() / 1000),
+    title:
+      bookmark.title ??
+      (bookmark.content.type === BookmarkTypes.LINK
+        ? bookmark.content.title ?? null
+        : null),
+    tags: bookmark.tags.map((t) => t.name),
+    content,
+    note: bookmark.note ?? null,
+  };
+}
diff --git a/apps/web/lib/importBookmarkParser.ts b/apps/web/lib/importBookmarkParser.ts
index 1f80e5f4..3134af55 100644
--- a/apps/web/lib/importBookmarkParser.ts
+++ b/apps/web/lib/importBookmarkParser.ts
@@ -1,11 +1,16 @@
 // Copied from https://gist.github.com/devster31/4e8c6548fd16ffb75c02e6f24e27f9b9
 import * as cheerio from "cheerio";
 
+import { BookmarkTypes } from "@hoarder/shared/types/bookmarks";
+
+import { zExportSchema } from "./exportBookmarks";
+
 export interface ParsedBookmark {
   title: string;
   url?: string;
   tags: string[];
   addDate?: number;
+  notes?: string;
 }
 
 export async function parseNetscapeBookmarkFile(
@@ -68,3 +73,27 @@ export async function parsePocketBookmarkFile(
     })
     .get();
 }
+
+export async function parseHoarderBookmarkFile(
+  file: File,
+): Promise<ParsedBookmark[]> {
+  const textContent = await file.text();
+
+  const parsed = zExportSchema.safeParse(JSON.parse(textContent));
+  if (!parsed.success) {
+    throw new Error(
+      `The uploaded JSON file contains an invalid bookmark file: ${parsed.error.toString()}`,
+    );
+  }
+
+  return parsed.data.bookmarks.map((bookmark) => ({
+    title: bookmark.title ?? "",
+    url:
+      bookmark.content?.type == BookmarkTypes.LINK
+        ? bookmark.content.url
+        : undefined,
+    tags: bookmark.tags,
+    addDate: bookmark.createdAt,
+    notes: bookmark.note ?? undefined,
+  }));
+}