import { readFile } from 'node:fs/promises';
import postgres from 'postgres';

if (!process.env.DB_URL) throw new Error('DB_URL is required');
const catalog = JSON.parse(
	await readFile(new URL('../data/cod-challenges.json', import.meta.url), 'utf8')
);
const client = postgres(process.env.DB_URL, { max: 1 });
try {
	await client.begin(async (tx) => {
		for (const [slug, rows] of Object.entries(catalog.games) as [
			string,
			{
				key: string;
				name: string;
				category: string;
				requirement: string;
				reward: string | null;
				icon: string | null;
				target: number | null;
				sourceUrl: string;
			}[]
		][]) {
			const [game] =
				await tx`select id from tracker_games where slug=${slug} and franchise='call-of-duty'`;
			if (!game) throw new Error(`Seed Call of Duty catalog first: ${slug}`);
			for (let offset = 0; offset < rows.length; offset += 500) {
				const batch = rows
					.slice(offset, offset + 500)
					.map(({ sourceUrl, ...r }) => ({ ...r, game_id: game.id, source_url: sourceUrl }));
				await tx`insert into tracker_challenges ${tx(batch)} on conflict (game_id,key) do update set name=excluded.name,category=excluded.category,requirement=excluded.requirement,reward=excluded.reward,icon=excluded.icon,target=excluded.target,source_url=excluded.source_url`;
			}
			// Retire removed source definitions only when nobody has saved progress.
			if (rows.length)
				await tx`delete from tracker_challenges c where c.game_id=${game.id} and c.key not in ${tx(rows.map((r) => r.key))} and not exists (select 1 from tracker_challenge_progress p where p.challenge_id=c.id)`;
			console.log(`${slug}: ${rows.length} challenge rows`);
		}
	});
} finally {
	await client.end();
}