import "server-only";
import { and, asc, count, desc, eq, like, or, sql } from "drizzle-orm";
import { db, WebsiteArticles } from "@/lib/db";

export async function loadNewsArchive(
	options: { search?: string; page?: number; order?: string } = {},
) {
	const search = (typeof options.search === "string" ? options.search : "")
		.trim()
		.slice(0, 191);
	const order = options.order === "oldest" ? "oldest" : "newest";
	const publishedAt =
		sql<Date | null>`COALESCE(${WebsiteArticles.publishAt}, ${WebsiteArticles.createdAt})`.mapWith(
			WebsiteArticles.createdAt,
		);
	const where = and(
		eq(WebsiteArticles.status, "published"),
		or(
			sql`${WebsiteArticles.publishAt} IS NULL`,
			sql`${WebsiteArticles.publishAt} <= NOW()`,
		),
		search
			? or(
					like(WebsiteArticles.title, `%${search}%`),
					like(WebsiteArticles.shortStory, `%${search}%`),
				)
			: undefined,
	);
	const totals = await db
		.select({ value: count() })
		.from(WebsiteArticles)
		.where(where);
	const total = Number(totals[0]?.value ?? 0);
	const perPage = 24;
	const lastPage = Math.max(1, Math.ceil(total / perPage));
	const page = Math.min(
		lastPage,
		Number.isFinite(options.page)
			? Math.max(1, Math.trunc(options.page ?? 1))
			: 1,
	);
	const sort = order === "oldest" ? asc : desc;
	const rows = await db
		.select({
			slug: WebsiteArticles.slug,
			title: WebsiteArticles.title,
			shortStory: WebsiteArticles.shortStory,
			image: WebsiteArticles.image,
			createdAt: publishedAt,
		})
		.from(WebsiteArticles)
		.where(where)
		.orderBy(sort(publishedAt), sort(WebsiteArticles.id))
		.limit(perPage)
		.offset((page - 1) * perPage);
	return { rows, total, page, perPage, lastPage, search, order };
}