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import {
and,
eq,
exists,
gt,
gte,
like,
lt,
lte,
notExists,
notLike,
} from "drizzle-orm";
import {
bookmarkLinks,
bookmarkLists,
bookmarks,
bookmarksInLists,
bookmarkTags,
tagsOnBookmarks,
} from "@hoarder/db/schema";
import { Matcher } from "@hoarder/shared/types/search";
import { AuthedContext } from "..";
interface BookmarkQueryReturnType {
id: string;
}
function intersect(
vals: BookmarkQueryReturnType[][],
): BookmarkQueryReturnType[] {
if (!vals || vals.length === 0) {
return [];
}
if (vals.length === 1) {
return [...vals[0]];
}
const countMap = new Map<string, number>();
const map = new Map<string, BookmarkQueryReturnType>();
for (const arr of vals) {
for (const item of arr) {
countMap.set(item.id, (countMap.get(item.id) ?? 0) + 1);
map.set(item.id, item);
}
}
const result: BookmarkQueryReturnType[] = [];
for (const [id, count] of countMap) {
if (count === vals.length) {
result.push(map.get(id)!);
}
}
return result;
}
function union(vals: BookmarkQueryReturnType[][]): BookmarkQueryReturnType[] {
if (!vals || vals.length === 0) {
return [];
}
const uniqueIds = new Set<string>();
const map = new Map<string, BookmarkQueryReturnType>();
for (const arr of vals) {
for (const item of arr) {
uniqueIds.add(item.id);
map.set(item.id, item);
}
}
const result: BookmarkQueryReturnType[] = [];
for (const id of uniqueIds) {
result.push(map.get(id)!);
}
return result;
}
async function getIds(
db: AuthedContext["db"],
userId: string,
matcher: Matcher,
): Promise<BookmarkQueryReturnType[]> {
switch (matcher.type) {
case "tagName": {
const comp = matcher.inverse ? notExists : exists;
return db
.selectDistinct({ id: bookmarks.id })
.from(bookmarks)
.where(
and(
eq(bookmarks.userId, userId),
comp(
db
.select()
.from(tagsOnBookmarks)
.innerJoin(
bookmarkTags,
eq(tagsOnBookmarks.tagId, bookmarkTags.id),
)
.where(
and(
eq(tagsOnBookmarks.bookmarkId, bookmarks.id),
eq(bookmarkTags.userId, userId),
eq(bookmarkTags.name, matcher.tagName),
),
),
),
),
);
}
case "listName": {
const comp = matcher.inverse ? notExists : exists;
return db
.selectDistinct({ id: bookmarks.id })
.from(bookmarks)
.where(
and(
eq(bookmarks.userId, userId),
comp(
db
.select()
.from(bookmarksInLists)
.innerJoin(
bookmarkLists,
eq(bookmarksInLists.listId, bookmarkLists.id),
)
.where(
and(
eq(bookmarksInLists.bookmarkId, bookmarks.id),
eq(bookmarkLists.userId, userId),
eq(bookmarkLists.name, matcher.listName),
),
),
),
),
);
}
case "archived": {
return db
.select({ id: bookmarks.id })
.from(bookmarks)
.where(
and(
eq(bookmarks.userId, userId),
eq(bookmarks.archived, matcher.archived),
),
);
}
case "url": {
const comp = matcher.inverse ? notLike : like;
return db
.select({ id: bookmarkLinks.id })
.from(bookmarkLinks)
.leftJoin(bookmarks, eq(bookmarks.id, bookmarkLinks.id))
.where(
and(
eq(bookmarks.userId, userId),
comp(bookmarkLinks.url, `%${matcher.url}%`),
),
);
}
case "favourited": {
return db
.select({ id: bookmarks.id })
.from(bookmarks)
.where(
and(
eq(bookmarks.userId, userId),
eq(bookmarks.favourited, matcher.favourited),
),
);
}
case "dateAfter": {
const comp = matcher.inverse ? lt : gte;
return db
.select({ id: bookmarks.id })
.from(bookmarks)
.where(
and(
eq(bookmarks.userId, userId),
comp(bookmarks.createdAt, matcher.dateAfter),
),
);
}
case "dateBefore": {
const comp = matcher.inverse ? gt : lte;
return db
.select({ id: bookmarks.id })
.from(bookmarks)
.where(
and(
eq(bookmarks.userId, userId),
comp(bookmarks.createdAt, matcher.dateBefore),
),
);
}
case "and": {
const vals = await Promise.all(
matcher.matchers.map((m) => getIds(db, userId, m)),
);
return intersect(vals);
}
case "or": {
const vals = await Promise.all(
matcher.matchers.map((m) => getIds(db, userId, m)),
);
return union(vals);
}
default: {
throw new Error("Unknown matcher type");
}
}
}
export async function getBookmarkIdsFromMatcher(
ctx: AuthedContext,
matcher: Matcher,
): Promise<string[]> {
const results = await getIds(ctx.db, ctx.user.id, matcher);
return results.map((r) => r.id);
}
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