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frontend/src/routes/lookup/+page.js

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+import { redirect } from '@sveltejs/kit';
+import { get_api_lookup } from '$lib/backend.js';
+
+/** @type {import('./$types').PageLoad} */
+export async function load({ url, fetch }) {
+	let query = (url.searchParams.get('q') || '').replace(/^\s+|\s+$/g, '').replace(/\s+/g, ' ');
+	let ordinal = parseInt(url.searchParams.get('ordinal') || '');
+	let name = (url.searchParams.get('name') || '').replace(/^\s+|\s+$/g, '').replace(/\s+/g, ' ').toUpperCase();
+	let items = query ? await get_api_lookup({ fetch, query }) : [];
+	if(ordinal) items = items.filter(row => row.ordinal == ordinal);
+	else if(name) items = items.filter(row => row.name.startsWith(name));
+	let detail, match;
+	if((items.length == 1) && (url.searchParams.get('rd'))) {
+		detail = await get_api_lookup({ fetch, query, ordinal: (items[0].ordinal || '0'), force: url.searchParams.get('force') });
+		if(match = /(^[^\r\n;]+);(?:\([^\)]*?\))? (?:(\d+) )?(\d{3}-\d{2}-\d{4}P?) (.+?)\s*$/m.exec(detail)) {
+			if(match[2]) throw redirect(302, '/chart/' + match[2]);
+			if(match[3]) throw redirect(302, '/chart/' + match[3].replace(/[^\dP]/g, ''));
+		}
+	}
+	return {
+		query, ordinal, name, items, detail
+	};
+}