1 files changed, 111 insertions, 0 deletions
diff --git a/packages/shared/import-export/exporters.ts b/packages/shared/import-export/exporters.ts
new file mode 100644
index 00000000..967937a4
--- /dev/null
+++ b/packages/shared/import-export/exporters.ts
@@ -0,0 +1,111 @@
+import { z } from "zod";
+
+import { BookmarkTypes, ZBookmark } from "../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(),
+  archived: z.boolean().optional().default(false),
+});
+
+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,
+    archived: bookmark.archived,
+  };
+}
+
+export function toNetscapeFormat(bookmarks: ZBookmark[]): string {
+  const header = `<!DOCTYPE NETSCAPE-Bookmark-file-1>
+<!-- This is an automatically generated file.
+     It will be read and overwritten.
+     DO NOT EDIT! -->
+<META HTTP-EQUIV="Content-Type" CONTENT="text/html; charset=UTF-8">
+<TITLE>Bookmarks</TITLE>
+<H1>Bookmarks</H1>
+<DL><p>`;
+
+  const footer = `</DL><p>`;
+
+  const bookmarkEntries = bookmarks
+    .map((bookmark) => {
+      if (bookmark.content?.type !== BookmarkTypes.LINK) {
+        return "";
+      }
+      const addDate = bookmark.createdAt
+        ? `ADD_DATE="${Math.floor(bookmark.createdAt.getTime() / 1000)}"`
+        : "";
+
+      const tagNames = bookmark.tags.map((t) => t.name).join(",");
+      const tags = tagNames.length > 0 ? `TAGS="${tagNames}"` : "";
+
+      const encodedUrl = encodeURI(bookmark.content.url);
+      const displayTitle = bookmark.title ?? bookmark.content.url;
+      const encodedTitle = escapeHtml(displayTitle);
+
+      return `    <DT><A HREF="${encodedUrl}" ${addDate} ${tags}>${encodedTitle}</A>`;
+    })
+    .filter(Boolean)
+    .join("\n");
+
+  return `${header}\n${bookmarkEntries}\n${footer}`;
+}
+
+function escapeHtml(input: string): string {
+  const escapeMap: Record<string, string> = {
+    "&": "&amp;",
+    "'": "&#x27;",
+    "`": "&#x60;",
+    '"': "&quot;",
+    "<": "&lt;",
+    ">": "&gt;",
+  };
+
+  return input.replace(/[&'`"<>]/g, (match) => escapeMap[match] || "");
+}