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import { limitConcurrency } from "../concurrency";
import { MAX_LIST_NAME_LENGTH } from "../types/lists";
import { ImportSource, ParsedBookmark, parseImportFile } from "./parsers";
export interface ImportCounts {
successes: number;
failures: number;
alreadyExisted: number;
total: number;
}
export interface ImportDeps {
createList: (input: {
name: string;
icon: string;
parentId?: string;
}) => Promise<{ id: string }>;
createBookmark: (
bookmark: ParsedBookmark,
sessionId: string,
) => Promise<{ id: string; alreadyExists?: boolean }>;
addBookmarkToLists: (input: {
bookmarkId: string;
listIds: string[];
}) => Promise<void>;
updateBookmarkTags: (input: {
bookmarkId: string;
tags: string[];
}) => Promise<void>;
createImportSession: (input: {
name: string;
rootListId: string;
}) => Promise<{ id: string }>;
}
export interface ImportOptions {
concurrencyLimit?: number;
parsers?: Partial<
Record<ImportSource, (textContent: string) => ParsedBookmark[]>
>;
}
export interface ImportResult {
counts: ImportCounts;
rootListId: string | null;
importSessionId: string | null;
}
export async function importBookmarksFromFile(
{
file,
source,
rootListName,
deps,
onProgress,
}: {
file: { text: () => Promise<string> };
source: ImportSource;
rootListName: string;
deps: ImportDeps;
onProgress?: (done: number, total: number) => void;
},
options: ImportOptions = {},
): Promise<ImportResult> {
const { concurrencyLimit = 20, parsers } = options;
const textContent = await file.text();
const parsedBookmarks = parsers?.[source]
? parsers[source]!(textContent)
: parseImportFile(source, textContent);
if (parsedBookmarks.length === 0) {
return {
counts: { successes: 0, failures: 0, alreadyExisted: 0, total: 0 },
rootListId: null,
importSessionId: null,
};
}
const rootList = await deps.createList({ name: rootListName, icon: "⬆️" });
const session = await deps.createImportSession({
name: `${source.charAt(0).toUpperCase() + source.slice(1)} Import - ${new Date().toLocaleDateString()}`,
rootListId: rootList.id,
});
onProgress?.(0, parsedBookmarks.length);
const PATH_DELIMITER = "$$__$$";
// Build required paths
const allRequiredPaths = new Set<string>();
for (const bookmark of parsedBookmarks) {
for (const path of bookmark.paths) {
if (path && path.length > 0) {
for (let i = 1; i <= path.length; i++) {
const subPath = path.slice(0, i);
const pathKey = subPath.join(PATH_DELIMITER);
allRequiredPaths.add(pathKey);
}
}
}
}
const allRequiredPathsArray = Array.from(allRequiredPaths).sort(
(a, b) => a.split(PATH_DELIMITER).length - b.split(PATH_DELIMITER).length,
);
const pathMap: Record<string, string> = { "": rootList.id };
for (const pathKey of allRequiredPathsArray) {
const parts = pathKey.split(PATH_DELIMITER);
const parentKey = parts.slice(0, -1).join(PATH_DELIMITER);
const parentId = pathMap[parentKey] || rootList.id;
const folderName = parts[parts.length - 1];
const folderList = await deps.createList({
name: folderName.substring(0, MAX_LIST_NAME_LENGTH),
parentId,
icon: "📁",
});
pathMap[pathKey] = folderList.id;
}
let done = 0;
const importPromises = parsedBookmarks.map((bookmark) => async () => {
try {
const listIds = bookmark.paths.map(
(path) => pathMap[path.join(PATH_DELIMITER)] || rootList.id,
);
if (listIds.length === 0) listIds.push(rootList.id);
const created = await deps.createBookmark(bookmark, session.id);
await deps.addBookmarkToLists({ bookmarkId: created.id, listIds });
if (bookmark.tags && bookmark.tags.length > 0) {
await deps.updateBookmarkTags({
bookmarkId: created.id,
tags: bookmark.tags,
});
}
return created;
} finally {
done += 1;
onProgress?.(done, parsedBookmarks.length);
}
});
const resultsPromises = limitConcurrency(importPromises, concurrencyLimit);
const results = await Promise.allSettled(resultsPromises);
let successes = 0;
let failures = 0;
let alreadyExisted = 0;
for (const r of results) {
if (r.status === "fulfilled") {
if (r.value.alreadyExists) alreadyExisted++;
else successes++;
} else {
failures++;
}
}
return {
counts: {
successes,
failures,
alreadyExisted,
total: parsedBookmarks.length,
},
rootListId: rootList.id,
importSessionId: session.id,
};
}
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