feat: add search and data tables

src/lib/server/table.ts

@@ -0,0 +1,61 @@
+import { ilike, or, asc, desc, type SQL, type Column } from 'drizzle-orm';
+
+export interface TableParams {
+	page: number;
+	limit: number;
+	search: string;
+	sortBy: string;
+	sortDir: 'asc' | 'desc';
+	filter: string;
+}
+
+export interface TableMeta {
+	page: number;
+	limit: number;
+	total: number;
+	totalPages: number;
+	search: string;
+	sortBy: string;
+	sortDir: 'asc' | 'desc';
+	filter: string;
+}
+
+export function parseTableParams(url: URL, defaults?: Partial<TableParams>): TableParams {
+	const page = Math.max(1, parseInt(url.searchParams.get('page') ?? '1'));
+	const limit = Math.min(
+		100,
+		Math.max(1, parseInt(url.searchParams.get('limit') ?? String(defaults?.limit ?? 25)))
+	);
+	const search = url.searchParams.get('search')?.trim() ?? '';
+	const sortBy = url.searchParams.get('sortBy') ?? defaults?.sortBy ?? '';
+	const sortDir = url.searchParams.get('sortDir') === 'asc' ? 'asc' : 'desc';
+	const filter = url.searchParams.get('filter') ?? defaults?.filter ?? '';
+	return { page, limit, search, sortBy, sortDir, filter };
+}
+
+export function buildSearchFilter(search: string, columns: Column[]): SQL | undefined {
+	if (!search) return undefined;
+	const pattern = `%${search}%`;
+	const conditions = columns.map((col) => ilike(col, pattern));
+	if (conditions.length === 0) return undefined;
+	if (conditions.length === 1) return conditions[0];
+	return or(...conditions);
+}
+
+export function buildOrderBy(
+	sortBy: string,
+	sortDir: 'asc' | 'desc',
+	columnMap: Record<string, Column | SQL>,
+	fallback: Column | SQL
+): SQL {
+	const col = columnMap[sortBy] ?? fallback;
+	return sortDir === 'asc' ? asc(col) : desc(col);
+}
+
+export function buildTableMeta(params: TableParams, total: number): TableMeta {
+	return {
+		...params,
+		total,
+		totalPages: Math.max(1, Math.ceil(total / params.limit))
+	};
+}