import { db } from '$lib/server/db';
import { baskets, prefixes, tickets } from '$lib/server/db/schema';
import { json } from '@sveltejs/kit';
import { sql } from 'drizzle-orm';

const chunk_size = 300;

export const GET = async () => {
	const data = {};
	data.prefixes = await db.select().from(prefixes);
	data.baskets = await db.select().from(baskets);
	data.tickets = await db.select().from(tickets);
	return json(data);
};

export const POST = async ({ request }) => {
	const reqData = await request.json();
	for (let i = 0; i < reqData.prefixes.length; i += chunk_size) {
		const chunk = reqData.prefixes.slice(i, i + chunk_size);
		await db
			.insert(prefixes)
			.values(chunk)
			.onConflictDoUpdate({
				target: prefixes.prefix,
				set: { color: sql`EXCLUDED.color`, weight: sql`EXCLUDED.weight` }
			});
	}
	for (let i = 0; i < reqData.baskets.length; i += chunk_size) {
		const chunk = reqData.baskets.slice(i, i + chunk_size);
		await db
			.insert(baskets)
			.values(chunk)
			.onConflictDoUpdate({
				target: [baskets.prefix, baskets.b_id],
				set: {
					description: sql`EXCLUDED.description`,
					donors: sql`EXCLUDED.donors`,
					winning_ticket: sql`EXCLUDED.winning_ticket`
				}
			});
	}
	for (let i = 0; i < reqData.tickets.length; i += chunk_size) {
		const chunk = reqData.tickets.slice(i, i + chunk_size);
		await db
			.insert(tickets)
			.values(chunk)
			.onConflictDoNothing({
				target: [tickets.prefix, tickets.t_id],
				set: {
					first_name: sql`EXCLUDED.first_name`,
					last_name: sql`EXCLUDED.last_name`,
					phone_number: sql`EXCLUDED.phone_number`,
					pref: sql`EXCLUDED.pref`
				}
			});
	}
	return json({ details: 'Data loaded successfully.' });
};